learnpath.class.php 418 KB

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  1. <?php
  2. /* For licensing terms, see /license.txt */
  3. /**
  4. * This class defines the parent attributes and methods for Chamilo learnpaths and SCORM
  5. * learnpaths. It is used by the scorm class.
  6. *
  7. * @package chamilo.learnpath
  8. * @author Yannick Warnier <ywarnier@beeznest.org>
  9. * @author Julio Montoya <gugli100@gmail.com> Several improvements and fixes
  10. */
  11. /**
  12. * Defines the learnpath parent class
  13. * @package chamilo.learnpath
  14. */
  15. class learnpath {
  16. public $attempt = 0; // The number for the current ID view.
  17. public $cc; // Course (code) this learnpath is located in. @todo change name for something more comprensible ...
  18. public $current; // Id of the current item the user is viewing.
  19. public $current_score; // The score of the current item.
  20. public $current_time_start; // The time the user loaded this resource (this does not mean he can see it yet).
  21. public $current_time_stop; // The time the user closed this resource.
  22. public $default_status = 'not attempted';
  23. public $encoding = 'UTF-8';
  24. public $error = '';
  25. public $extra_information = ''; // This string can be used by proprietary SCORM contents to store data about the current learnpath.
  26. public $force_commit = false; // For SCORM only - if set to true, will send a scorm LMSCommit() request on each LMSSetValue().
  27. public $index; // The index of the active learnpath_item in $ordered_items array.
  28. public $items = array();
  29. public $last; // item_id of last item viewed in the learning path.
  30. public $last_item_seen = 0; // In case we have already come in this learnpath, reuse the last item seen if authorized.
  31. public $license; // Which license this course has been given - not used yet on 20060522.
  32. public $lp_id; // DB ID for this learnpath.
  33. public $lp_view_id; // DB ID for lp_view
  34. public $log_file; // File where to log learnpath API msg.
  35. public $maker; // Which maker has conceived the content (ENI, Articulate, ...).
  36. public $message = '';
  37. public $mode = 'embedded'; // Holds the video display mode (fullscreen or embedded).
  38. public $name; // Learnpath name (they generally have one).
  39. public $ordered_items = array(); // List of the learnpath items in the order they are to be read.
  40. public $path = ''; // Path inside the scorm directory (if scorm).
  41. public $theme; // The current theme of the learning path.
  42. public $preview_image; // The current image of the learning path.
  43. // Tells if all the items of the learnpath can be tried again. Defaults to "no" (=1).
  44. public $prevent_reinit = 1;
  45. // Describes the mode of progress bar display.
  46. public $seriousgame_mode = 0;
  47. public $progress_bar_mode = '%';
  48. // Percentage progress as saved in the db.
  49. public $progress_db = '0';
  50. public $proximity; // Wether the content is distant or local or unknown.
  51. public $refs_list = array (); //list of items by ref => db_id. Used only for prerequisites match.
  52. // !!!This array (refs_list) is built differently depending on the nature of the LP.
  53. // If SCORM, uses ref, if Chamilo, uses id to keep a unique value.
  54. public $type; //type of learnpath. Could be 'dokeos', 'scorm', 'scorm2004', 'aicc', ...
  55. // TODO: Check if this type variable is useful here (instead of just in the controller script).
  56. public $user_id; //ID of the user that is viewing/using the course
  57. public $update_queue = array();
  58. public $scorm_debug = 0;
  59. public $arrMenu = array(); // Array for the menu items.
  60. public $debug = 0; // Logging level.
  61. public $lp_session_id =0;
  62. public $lp_view_session_id =0; // The specific view might be bound to a session.
  63. public $prerequisite = 0;
  64. public $use_max_score = 1; // 1 or 0
  65. public $created_on = '';
  66. public $modified_on = '';
  67. public $publicated_on = '';
  68. public $expired_on = '';
  69. /**
  70. * Class constructor. Needs a database handler, a course code and a learnpath id from the database.
  71. * Also builds the list of items into $this->items.
  72. * @param string Course code
  73. * @param integer Learnpath ID
  74. * @param integer User ID
  75. * @return boolean True on success, false on error
  76. */
  77. public function __construct($course, $lp_id, $user_id) {
  78. $this->encoding = api_get_system_encoding(); // Chamilo 1.8.8: We intend always to use the system encoding.
  79. // Check params.
  80. // Check course code.
  81. $course_db = '';
  82. $this->course_id = api_get_course_int_id();
  83. if ($this->debug > 0) {error_log('New LP - In learnpath::__construct('.$course.','.$lp_id.','.$user_id.')', 0); }
  84. if (empty($course)) {
  85. $this->error = 'Course code is empty';
  86. return false;
  87. } else {
  88. $main_table = Database::get_main_table(TABLE_MAIN_COURSE);
  89. $course = $this->escape_string($course);
  90. $sql = "SELECT * FROM $main_table WHERE code = '$course'";
  91. if ($this->debug > 2) { error_log('New LP - learnpath::__construct() '.__LINE__.' - Querying course: '.$sql, 0); }
  92. $res = Database::query($sql);
  93. if (Database::num_rows($res) > 0) {
  94. $this->cc = $course;
  95. $row_course = Database::fetch_array($res);
  96. $this->course_id = $row_course['id'];
  97. $course_db = $row_course['db_name'];
  98. } else {
  99. $this->error = 'Course code does not exist in database ('.$sql.')';
  100. return false;
  101. }
  102. }
  103. // Check learnpath ID.
  104. if (empty($lp_id)) {
  105. $this->error = 'Learnpath ID is empty';
  106. return false;
  107. } else {
  108. // TODO: Make it flexible to use any course_code (still using env course code here).
  109. $lp_table = Database::get_course_table(TABLE_LP_MAIN, $course_db);
  110. //$id = Database::escape_integer($id);
  111. $lp_id = $this->escape_string($lp_id);
  112. $sql = "SELECT * FROM $lp_table WHERE id = '$lp_id'";
  113. if ($this->debug > 2) { error_log('New LP - learnpath::__construct() '.__LINE__.' - Querying lp: '.$sql, 0); }
  114. $res = Database::query($sql);
  115. if (Database::num_rows($res) > 0) {
  116. $this->lp_id = $lp_id;
  117. $row = Database::fetch_array($res);
  118. $this->type = $row['lp_type'];
  119. $this->name = stripslashes($row['name']);
  120. //$this->encoding = $row['default_encoding']; // Chamilo 1.8.8: We intend not to use 'default_encoding' field anymore.
  121. $this->proximity = $row['content_local'];
  122. $this->theme = $row['theme'];
  123. $this->maker = $row['content_maker'];
  124. $this->prevent_reinit = $row['prevent_reinit'];
  125. $this->seriousgame_mode = $row['seriousgame_mode'];
  126. $this->license = $row['content_license'];
  127. $this->scorm_debug = $row['debug'];
  128. $this->js_lib = $row['js_lib'];
  129. $this->path = $row['path'];
  130. $this->preview_image = $row['preview_image'];
  131. $this->author = $row['author'];
  132. $this->hide_toc_frame = $row['hide_toc_frame'];
  133. $this->lp_session_id = $row['session_id'];
  134. $this->use_max_score = $row['use_max_score'];
  135. $this->created_on = $row['created_on'];
  136. $this->modified_on = $row['modified_on'];
  137. if ($row['publicated_on'] != '0000-00-00 00:00:00') {
  138. $this->publicated_on = $row['publicated_on'];
  139. }
  140. if ($row['expired_on'] != '0000-00-00 00:00:00') {
  141. $this->expired_on = $row['expired_on'];
  142. }
  143. if ($this->type == 2) {
  144. if ($row['force_commit'] == 1) {
  145. $this->force_commit = true;
  146. }
  147. }
  148. $this->mode = $row['default_view_mod'];
  149. } else {
  150. $this->error = 'Learnpath ID does not exist in database ('.$sql.')';
  151. return false;
  152. }
  153. }
  154. // Check user ID.
  155. if (empty($user_id)) {
  156. $this->error = 'User ID is empty';
  157. return false;
  158. } else {
  159. //$main_table = Database::get_main_user_table();
  160. $main_table = Database::get_main_table(TABLE_MAIN_USER);
  161. //$user_id = Database::escape_integer($user_id);
  162. $user_id = $this->escape_string($user_id);
  163. $sql = "SELECT * FROM $main_table WHERE user_id = '$user_id'";
  164. if ($this->debug > 2) { error_log('New LP - learnpath::__construct() '.__LINE__.' - Querying user: '.$sql, 0); }
  165. $res = Database::query($sql);
  166. if (Database::num_rows($res) > 0) {
  167. $this->user_id = $user_id;
  168. } else {
  169. $this->error = 'User ID does not exist in database ('.$sql.')';
  170. return false;
  171. }
  172. }
  173. // End of variables checking.
  174. $session_id = api_get_session_id();
  175. // Get the session condition for learning paths of the base + session.
  176. $session = api_get_session_condition($session_id);
  177. // Now get the latest attempt from this user on this LP, if available, otherwise create a new one.
  178. $lp_table = Database::get_course_table(TABLE_LP_VIEW, $course_db);
  179. // Selecting by view_count descending allows to get the highest view_count first.
  180. $sql = "SELECT * FROM $lp_table WHERE lp_id = '$lp_id' AND user_id = '$user_id' $session ORDER BY view_count DESC";
  181. if ($this->debug > 2) { error_log('New LP - learnpath::__construct() ' . __LINE__ . ' - querying lp_view: ' . $sql, 0); }
  182. $res = Database::query($sql);
  183. $view_id = 0; // Used later to query lp_item_view.
  184. if (Database :: num_rows($res) > 0) {
  185. if ($this->debug > 2) {
  186. error_log('New LP - learnpath::__construct() ' . __LINE__ . ' - Found previous view', 0);
  187. }
  188. $row = Database :: fetch_array($res);
  189. $this->attempt = $row['view_count'];
  190. $this->lp_view_id = $row['id'];
  191. $this->last_item_seen = $row['last_item'];
  192. $this->progress_db = $row['progress'];
  193. $this->lp_view_session_id = $row['session_id'];
  194. } else {
  195. if ($this->debug > 2) {
  196. error_log('New LP - learnpath::__construct() ' . __LINE__ . ' - NOT Found previous view', 0);
  197. }
  198. $this->attempt = 1;
  199. $sql_ins = "INSERT INTO $lp_table (c_id, lp_id,user_id,view_count, session_id) VALUES ($this->course_id, $lp_id,$user_id,1,$session_id)";
  200. $res_ins = Database::query($sql_ins);
  201. $this->lp_view_id = Database :: insert_id();
  202. if ($this->debug > 2) {
  203. error_log('New LP - learnpath::__construct() ' . __LINE__ . ' - inserting new lp_view: ' . $sql_ins, 0);
  204. }
  205. }
  206. // Initialise items.
  207. $lp_item_table = Database::get_course_table(TABLE_LP_ITEM, $course_db);
  208. $sql = "SELECT * FROM $lp_item_table WHERE lp_id = '".$this->lp_id."' ORDER BY parent_item_id, display_order";
  209. $res = Database::query($sql);
  210. while ($row = Database::fetch_array($res)) {
  211. $oItem = '';
  212. //$this->ordered_items[] = $row['id'];
  213. switch ($this->type) {
  214. case 3: //aicc
  215. $oItem = new aiccItem('db', $row['id'], $course_db);
  216. if (is_object($oItem)) {
  217. $my_item_id = $oItem->get_id();
  218. $oItem->set_lp_view($this->lp_view_id, $course_db);
  219. $oItem->set_prevent_reinit($this->prevent_reinit);
  220. // Don't use reference here as the next loop will make the pointed object change.
  221. $this->items[$my_item_id] = $oItem;
  222. $this->refs_list[$oItem->ref] = $my_item_id;
  223. if ($this->debug > 2) {
  224. error_log('New LP - learnpath::__construct() - aicc object with id ' . $my_item_id . ' set in items[]', 0);
  225. }
  226. }
  227. break;
  228. case 2:
  229. require_once 'scorm.class.php';
  230. require_once 'scormItem.class.php';
  231. $oItem = new scormItem('db', $row['id'], $course_db);
  232. if (is_object($oItem)) {
  233. $my_item_id = $oItem->get_id();
  234. $oItem->set_lp_view($this->lp_view_id, $course_db);
  235. $oItem->set_prevent_reinit($this->prevent_reinit);
  236. // Don't use reference here as the next loop will make the pointed object change.
  237. $this->items[$my_item_id] = $oItem;
  238. $this->refs_list[$oItem->ref] = $my_item_id;
  239. if ($this->debug > 2) {
  240. error_log('New LP - object with id ' . $my_item_id . ' set in items[]', 0);
  241. }
  242. }
  243. break;
  244. case 1:
  245. default:
  246. require_once 'learnpathItem.class.php';
  247. $oItem = new learnpathItem($row['id'], $user_id, $course_db);
  248. if (is_object($oItem)) {
  249. $my_item_id = $oItem->get_id();
  250. //$oItem->set_lp_view($this->lp_view_id); // Moved down to when we are sure the item_view exists.
  251. $oItem->set_prevent_reinit($this->prevent_reinit);
  252. // Don't use reference here as the next loop will make the pointed object change.
  253. $this->items[$my_item_id] = $oItem;
  254. $this->refs_list[$my_item_id] = $my_item_id;
  255. if ($this->debug > 2) {
  256. error_log('New LP - learnpath::__construct() ' . __LINE__ . ' - object with id ' . $my_item_id . ' set in items[]', 0);
  257. }
  258. }
  259. break;
  260. }
  261. // Items is a list of pointers to all items, classified by DB ID, not SCO id.
  262. if ($row['parent_item_id'] == 0 || empty ($this->items[$row['parent_item_id']])) {
  263. if (is_object($this->items[$row['id']])) {
  264. $this->items[$row['id']]->set_level(0);
  265. }
  266. } else {
  267. $level = $this->items[$row['parent_item_id']]->get_level() + 1;
  268. $this->items[$row['id']]->set_level($level);
  269. if (is_object($this->items[$row['parent_item_id']])) {
  270. // Items is a list of pointers from item DB ids to item objects.
  271. $this->items[$row['parent_item_id']]->add_child($row['id']);
  272. } else {
  273. if ($this->debug > 2) {
  274. error_log('New LP - learnpath::__construct() ' . __LINE__ . ' - The parent item (' . $row['parent_item_id'] . ') of item ' . $row['id'] . ' could not be found', 0);
  275. }
  276. }
  277. }
  278. // Get last viewing vars.
  279. $lp_item_view_table = Database :: get_course_table(TABLE_LP_ITEM_VIEW, $course_db);
  280. // This query should only return one or zero result.
  281. $sql = "SELECT * " .
  282. "FROM $lp_item_view_table " .
  283. "WHERE lp_view_id = " . $this->lp_view_id . " " .
  284. "AND lp_item_id = " . $row['id'] . " ORDER BY view_count DESC ";
  285. if ($this->debug > 2) {
  286. error_log('New LP - learnpath::__construct() - Selecting item_views: ' . $sql, 0);
  287. }
  288. // Get the item status.
  289. $res2 = Database::query($sql);
  290. if (Database :: num_rows($res2) > 0) {
  291. // If this learnpath has already been used by this user, get his last attempt count and
  292. // the last item seen back into this object.
  293. //$max = 0;
  294. $row2 = Database :: fetch_array($res2);
  295. if ($this->debug > 2) {
  296. error_log('New LP - learnpath::__construct() - Got item_view: ' . print_r($row2, true), 0);
  297. }
  298. if (is_object($this->items[$row['id']])) {
  299. $this->items[$row['id']]->set_status($row2['status']);
  300. if (empty ($row2['status'])) {
  301. $this->items[$row['id']]->set_status($this->default_status);
  302. }
  303. }
  304. //$this->attempt = $row['view_count'];
  305. //$this->last_item = $row['id'];
  306. } else { // No item has been found in lp_item_view for this view.
  307. // The first attempt of this user. Set attempt to 1 and last_item to 0 (first item available).
  308. // TODO: If the learnpath has not got attempts activated, always use attempt '1'.
  309. //$this->attempt = 1;
  310. //$this->last_item = 0;
  311. if (is_object($this->items[$row['id']])) {
  312. $this->items[$row['id']]->set_status($this->default_status);
  313. }
  314. // Add that row to the lp_item_view table so that we have something to show in the stats page.
  315. $sql_ins = "INSERT INTO $lp_item_view_table (c_id, lp_item_id, lp_view_id, view_count, status)
  316. VALUES ($this->course_id, ".$row['id'] . "," . $this->lp_view_id . ",1,'not attempted')";
  317. if ($this->debug > 2) {
  318. error_log('New LP - learnpath::__construct() ' . __LINE__ . ' - Inserting blank item_view : ' . $sql_ins, 0);
  319. }
  320. $res_ins = Database::query($sql_ins);
  321. }
  322. // Setting the view in the item object.
  323. if (is_object($this->items[$row['id']])) {
  324. $this->items[$row['id']]->set_lp_view($this->lp_view_id, $course_db);
  325. }
  326. }
  327. $this->ordered_items = $this->get_flat_ordered_items_list($this->get_id(), 0, $course_db);
  328. $this->max_ordered_items = 0;
  329. foreach ($this->ordered_items as $index => $dummy) {
  330. if ($index > $this->max_ordered_items && !empty($dummy)) {
  331. $this->max_ordered_items = $index;
  332. }
  333. }
  334. // TODO: Define the current item better.
  335. $this->first();
  336. if ($this->debug > 2) {
  337. error_log('New LP - learnpath::__construct() ' . __LINE__ . ' - End of learnpath constructor for learnpath ' . $this->get_id(), 0);
  338. }
  339. }
  340. /**
  341. * Function rewritten based on old_add_item() from Yannick Warnier. Due the fact that users can decide where the item should come, I had to overlook this function and
  342. * I found it better to rewrite it. Old function is still available. Added also the possibility to add a description.
  343. *
  344. * @param int $parent
  345. * @param int $previous
  346. * @param string $type
  347. * @param int resource ID (ref)
  348. * @param string $title
  349. * @param string $description
  350. * @return int
  351. */
  352. public function add_item($parent, $previous, $type = 'dokeos_chapter', $id, $title, $description, $prerequisites = 0, $max_time_allowed = 0) {
  353. if ($this->debug > 0) {
  354. error_log('New LP - In learnpath::add_item(' . $parent . ',' . $previous . ',' . $type . ',' . $id . ',' . $title . ')', 0);
  355. }
  356. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  357. $parent = intval($parent);
  358. $previous = intval($previous);
  359. $type = $this->escape_string($type);
  360. $id = intval($id);
  361. $max_time_allowed = $this->escape_string(htmlentities($max_time_allowed));
  362. if (empty ($max_time_allowed)) {
  363. $max_time_allowed = 0;
  364. }
  365. $title = $this->escape_string($title);
  366. $description = $this->escape_string($description);
  367. $sql_count = " SELECT COUNT(id) AS num
  368. FROM " . $tbl_lp_item . "
  369. WHERE lp_id = " . $this->get_id() . " AND parent_item_id = " . $parent;
  370. $res_count = Database::query($sql_count);
  371. $row = Database :: fetch_array($res_count);
  372. $num = $row['num'];
  373. if ($num > 0) {
  374. if ($previous == 0) {
  375. $sql = "SELECT id, next_item_id, display_order
  376. FROM " . $tbl_lp_item . "
  377. WHERE
  378. lp_id = " . $this->get_id() . " AND
  379. parent_item_id = " . $parent . " AND
  380. previous_item_id = 0 OR previous_item_id=" . $parent;
  381. $result = Database::query($sql);
  382. $row = Database :: fetch_array($result);
  383. $tmp_previous = 0;
  384. $next = $row['id'];
  385. $display_order = 0;
  386. } else {
  387. $previous = (int) $previous;
  388. $sql = "SELECT id, previous_item_id, next_item_id, display_order
  389. FROM " . $tbl_lp_item . "
  390. WHERE lp_id = " . $this->get_id() . " AND id = " . $previous;
  391. $result = Database::query($sql);
  392. $row = Database :: fetch_array($result);
  393. $tmp_previous = $row['id'];
  394. $next = $row['next_item_id'];
  395. $display_order = $row['display_order'];
  396. }
  397. } else {
  398. $tmp_previous = 0;
  399. $next = 0;
  400. $display_order = 0;
  401. }
  402. $new_item_id = -1;
  403. $id = $this->escape_string($id);
  404. $course_id = api_get_course_int_id();
  405. if ($type == 'quiz') {
  406. $sql = 'SELECT SUM(ponderation)
  407. FROM ' . Database :: get_course_table(TABLE_QUIZ_QUESTION) . ' as quiz_question
  408. INNER JOIN ' . Database :: get_course_table(TABLE_QUIZ_TEST_QUESTION) . ' as quiz_rel_question
  409. ON quiz_question.id = quiz_rel_question.question_id
  410. WHERE quiz_rel_question.exercice_id = ' . $id." AND
  411. quiz_question.c_id = $course_id AND
  412. quiz_rel_question.c_id = $course_id ";
  413. $rsQuiz = Database::query($sql);
  414. $max_score = Database :: result($rsQuiz, 0, 0);
  415. } else {
  416. $max_score = 100;
  417. }
  418. if ($prerequisites != 0) {
  419. $sql_ins = "INSERT INTO " . $tbl_lp_item . " (
  420. c_id,
  421. lp_id, ".
  422. "item_type, ".
  423. "ref, ".
  424. "title, ".
  425. "description, ".
  426. "path, ".
  427. "max_score, ".
  428. "parent_item_id, ".
  429. "previous_item_id, ".
  430. "next_item_id, ".
  431. "display_order, ".
  432. "prerequisite, ".
  433. "max_time_allowed ".
  434. ") VALUES (
  435. $course_id ,
  436. ".$this->get_id() . ", ".
  437. "'" . $type . "', ".
  438. "'', ".
  439. "'" . $title . "', ".
  440. "'" . $description . "', ".
  441. "'" . $id . "', ".
  442. "'" . $max_score . "', ".
  443. $parent . ", ".
  444. $previous . ", ".
  445. $next . ", ".
  446. ($display_order +1) . ", ".
  447. $prerequisites . ", ".
  448. $max_time_allowed .
  449. ")";
  450. } else {
  451. // Insert new item.
  452. $sql_ins = "
  453. INSERT INTO " . $tbl_lp_item . " ( ".
  454. "c_id, ".
  455. "lp_id, ".
  456. "item_type, ".
  457. "ref, ".
  458. "title, ".
  459. "description, ".
  460. "path, ".
  461. "max_score, ".
  462. "parent_item_id, ".
  463. "previous_item_id, ".
  464. "next_item_id, ".
  465. "display_order, ".
  466. "max_time_allowed ".
  467. ") VALUES (".
  468. $course_id. ",".
  469. $this->get_id() . ",".
  470. "'" . $type . "',".
  471. "'',".
  472. "'" . $title . "',".
  473. "'" . $description . "',".
  474. "'" . $id . "',".
  475. "'" . $max_score . "',".
  476. $parent . ",".
  477. $previous . ",".
  478. $next . ",".
  479. ($display_order +1) . ",".
  480. $max_time_allowed .
  481. ")";
  482. }
  483. if ($this->debug > 2) {
  484. error_log('New LP - Inserting dokeos_chapter: ' . $sql_ins, 0);
  485. }
  486. $res_ins = Database::query($sql_ins);
  487. if ($res_ins > 0) {
  488. $new_item_id = Database :: insert_id($res_ins);
  489. // Update the item that should come after the new item.
  490. $sql_update_next = "
  491. UPDATE " . $tbl_lp_item . "
  492. SET previous_item_id = " . $new_item_id . "
  493. WHERE id = " . $next;
  494. $res_update_next = Database::query($sql_update_next);
  495. // Update the item that should be before the new item.
  496. $sql_update_previous = "
  497. UPDATE " . $tbl_lp_item . "
  498. SET next_item_id = " . $new_item_id . "
  499. WHERE id = " . $tmp_previous;
  500. $res_update_previous = Database::query($sql_update_previous);
  501. // Update all the items after the new item.
  502. $sql_update_order = "
  503. UPDATE " . $tbl_lp_item . "
  504. SET display_order = display_order + 1
  505. WHERE
  506. lp_id = " . $this->get_id() . " AND
  507. id <> " . $new_item_id . " AND
  508. parent_item_id = " . $parent . " AND
  509. display_order > " . $display_order;
  510. $res_update_previous = Database::query($sql_update_order);
  511. // Update the item that should come after the new item.
  512. $sql_update_ref = "UPDATE " . $tbl_lp_item . "
  513. SET ref = " . $new_item_id . "
  514. WHERE id = " . $new_item_id;
  515. Database::query($sql_update_ref);
  516. }
  517. // Upload audio.
  518. if (!empty ($_FILES['mp3']['name'])) {
  519. // Create the audio folder if it does not exist yet.
  520. global $_course;
  521. $filepath = api_get_path(SYS_COURSE_PATH) . $_course['path'] . '/document/';
  522. if (!is_dir($filepath . 'audio')) {
  523. mkdir($filepath . 'audio', api_get_permissions_for_new_directories());
  524. $audio_id = add_document($_course, '/audio', 'folder', 0, 'audio');
  525. api_item_property_update($_course, TOOL_DOCUMENT, $audio_id, 'FolderCreated', api_get_user_id(), null, null, null, null, api_get_session_id());
  526. }
  527. // Upload the file in the documents tool.
  528. include_once api_get_path(LIBRARY_PATH).'fileUpload.lib.php';
  529. $file_path = handle_uploaded_document($_course, $_FILES['mp3'], api_get_path(SYS_COURSE_PATH) . $_course['path'] . '/document', '/audio', api_get_user_id(), '', '', '', '', '', false);
  530. // Getting the filename only.
  531. $file_components = explode('/', $file_path);
  532. $file = $file_components[count($file_components) - 1];
  533. // Store the mp3 file in the lp_item table.
  534. $sql_insert_audio = "UPDATE $tbl_lp_item SET audio = '" . Database :: escape_string($file) . "' WHERE id = '" . Database :: escape_string($new_item_id) . "'";
  535. Database::query($sql_insert_audio);
  536. }
  537. return $new_item_id;
  538. }
  539. /**
  540. * Static admin function allowing addition of a learnpath to a course.
  541. * @param string Course code
  542. * @param string Learnpath name
  543. * @param string Learnpath description string, if provided
  544. * @param string Type of learnpath (default = 'guess', others = 'dokeos', 'aicc',...)
  545. * @param string Type of files origin (default = 'zip', others = 'dir','web_dir',...)
  546. * @param string Zip file containing the learnpath or directory containing the learnpath
  547. * @return integer The new learnpath ID on success, 0 on failure
  548. */
  549. public function add_lp($course, $name, $description = '', $learnpath = 'guess', $origin = 'zip', $zipname = '', $publicated_on = '', $expired_on = '') {
  550. global $charset;
  551. $tbl_lp = Database :: get_course_table(TABLE_LP_MAIN);
  552. // Check course code exists.
  553. // Check lp_name doesn't exist, otherwise append something.
  554. $i = 0;
  555. $name = learnpath :: escape_string($name);
  556. // Session id.
  557. $session_id = api_get_session_id();
  558. $check_name = "SELECT * FROM $tbl_lp WHERE name = '$name'";
  559. //if ($this->debug > 2) { error_log('New LP - Checking the name for new LP: '.$check_name, 0); }
  560. $res_name = Database::query($check_name);
  561. if ($publicated_on == '0000-00-00 00:00:00' || empty($publicated_on)) {
  562. //by default the publication date is the same that the creation date
  563. //The behaviour above was changed due BT#2800
  564. global $_custom;
  565. if (isset($_custom['lps_hidden_when_no_start_date']) && $_custom['lps_hidden_when_no_start_date']) {
  566. $publicated_on = '';
  567. } else {
  568. $publicated_on = api_get_utc_datetime();
  569. }
  570. } else {
  571. $publicated_on = Database::escape_string(api_get_utc_datetime($publicated_on));
  572. }
  573. if ($expired_on == '0000-00-00 00:00:00' || empty($expired_on)) {
  574. $expired_on = '';
  575. } else {
  576. $expired_on = Database::escape_string(api_get_utc_datetime($expired_on));
  577. }
  578. $course_id = api_get_course_int_id();
  579. while (Database :: num_rows($res_name)) {
  580. // There is already one such name, update the current one a bit.
  581. $i++;
  582. $name = $name . ' - ' . $i;
  583. $check_name = "SELECT * FROM $tbl_lp WHERE name = '$name'";
  584. //if ($this->debug > 2) { error_log('New LP - Checking the name for new LP: '.$check_name, 0); }
  585. $res_name = Database::query($check_name);
  586. }
  587. // New name does not exist yet; keep it.
  588. // Escape description.
  589. $description = learnpath :: escape_string(api_htmlentities($description, ENT_QUOTES, $charset)); // Kevin: added htmlentities().
  590. $type = 1;
  591. switch ($learnpath) {
  592. case 'guess':
  593. break;
  594. case 'dokeos':
  595. case 'chamilo':
  596. $type = 1;
  597. break;
  598. case 'aicc':
  599. break;
  600. }
  601. switch ($origin) {
  602. case 'zip':
  603. // Check zipname string. If empty, we are currently creating a new Chamilo learnpath.
  604. break;
  605. case 'manual':
  606. default:
  607. $get_max = "SELECT MAX(display_order) FROM $tbl_lp";
  608. $res_max = Database::query($get_max);
  609. if (Database :: num_rows($res_max) < 1) {
  610. $dsp = 1;
  611. } else {
  612. $row = Database :: fetch_array($res_max);
  613. $dsp = $row[0] + 1;
  614. }
  615. $sql_insert = "INSERT INTO $tbl_lp (c_id, lp_type,name,description,path,default_view_mod, default_encoding,display_order,content_maker,content_local,js_lib,session_id, created_on, publicated_on, expired_on) " .
  616. "VALUES ($course_id, $type,'$name','$description','','embedded','UTF-8','$dsp','Chamilo','local','','".$session_id."', '".api_get_utc_datetime()."' , '".$publicated_on."' , '".$expired_on."')";
  617. $res_insert = Database::query($sql_insert);
  618. $id = Database :: insert_id();
  619. if ($id > 0) {
  620. // Insert into item_property.
  621. api_item_property_update(api_get_course_info(), TOOL_LEARNPATH, $id, 'LearnpathAdded', api_get_user_id());
  622. return $id;
  623. }
  624. break;
  625. }
  626. }
  627. /**
  628. * Appends a message to the message attribute
  629. * @param string Message to append.
  630. */
  631. public function append_message($string) {
  632. if ($this->debug > 0) {
  633. error_log('New LP - In learnpath::append_message()', 0);
  634. }
  635. $this->message .= $string;
  636. }
  637. /**
  638. * Autocompletes the parents of an item in case it's been completed or passed
  639. * @param integer Optional ID of the item from which to look for parents
  640. */
  641. public function autocomplete_parents($item) {
  642. if ($this->debug > 0) {
  643. error_log('New LP - In learnpath::autocomplete_parents()', 0);
  644. }
  645. if (empty ($item)) {
  646. $item = $this->current;
  647. }
  648. $parent_id = $this->items[$item]->get_parent();
  649. if ($this->debug > 2) {
  650. error_log('New LP - autocompleting parent of item ' . $item . ' (item ' . $parent_id . ')', 0);
  651. }
  652. if (is_object($this->items[$item]) and !empty ($parent_id)) {
  653. // if $item points to an object and there is a parent.
  654. if ($this->debug > 2) {
  655. error_log('New LP - ' . $item . ' is an item, proceed', 0);
  656. }
  657. $current_item = & $this->items[$item];
  658. $parent = & $this->items[$parent_id]; // Get the parent.
  659. // New experiment including failed and browsed in completed status.
  660. $current_status = $current_item->get_status();
  661. if ($current_item->is_done() || $current_status == 'browsed' || $current_status == 'failed') {
  662. // If the current item is completed or passes or succeeded.
  663. $completed = true;
  664. if ($this->debug > 2) {
  665. error_log('New LP - Status of current item is alright', 0);
  666. }
  667. foreach ($parent->get_children() as $child) {
  668. // Check all his brothers (his parent's children) for completion status.
  669. if ($child != $item) {
  670. if ($this->debug > 2) {
  671. error_log('New LP - Looking at brother with ID ' . $child . ', status is ' . $this->items[$child]->get_status(), 0);
  672. }
  673. //if($this->items[$child]->status_is(array('completed','passed','succeeded')))
  674. // Trying completing parents of failed and browsed items as well.
  675. if ($this->items[$child]->status_is(array (
  676. 'completed',
  677. 'passed',
  678. 'succeeded',
  679. 'browsed',
  680. 'failed'
  681. ))) {
  682. // Keep completion status to true.
  683. } else {
  684. if ($this->debug > 2) {
  685. error_log('New LP - Found one incomplete child of ' . $parent_id . ': ' . $child . ' is ' . $this->items[$child]->get_status(), 0);
  686. }
  687. $completed = false;
  688. }
  689. }
  690. }
  691. if ($completed) { // If all the children were completed:
  692. $parent->set_status('completed');
  693. $parent->save(false, $this->prerequisites_match($parent->get_id()));
  694. $this->update_queue[$parent->get_id()] = $parent->get_status();
  695. if ($this->debug > 2) {
  696. error_log('New LP - Added parent to update queue ' . print_r($this->update_queue, true), 0);
  697. }
  698. $this->autocomplete_parents($parent->get_id()); // Recursive call.
  699. }
  700. } else {
  701. //error_log('New LP - status of current item is not enough to get bothered with it', 0);
  702. }
  703. }
  704. }
  705. /**
  706. * Autosaves the current results into the database for the whole learnpath
  707. */
  708. public function autosave() {
  709. if ($this->debug > 0) {
  710. error_log('New LP - In learnpath::autosave()', 0);
  711. }
  712. // TODO: Add save operations for the learnpath itself.
  713. }
  714. /**
  715. * Clears the message attribute
  716. */
  717. public function clear_message() {
  718. if ($this->debug > 0) {
  719. error_log('New LP - In learnpath::clear_message()', 0);
  720. }
  721. $this->message = '';
  722. }
  723. /**
  724. * Closes the current resource
  725. *
  726. * Stops the timer
  727. * Saves into the database if required
  728. * Clears the current resource data from this object
  729. * @return boolean True on success, false on failure
  730. */
  731. public function close() {
  732. if ($this->debug > 0) {
  733. error_log('New LP - In learnpath::close()', 0);
  734. }
  735. if (empty ($this->lp_id)) {
  736. $this->error = 'Trying to close this learnpath but no ID is set';
  737. return false;
  738. }
  739. $this->current_time_stop = time();
  740. if ($this->save) {
  741. $learnpath_view_table = Database :: get_course_table(TABLE_LP_VIEW);
  742. /*
  743. $sql = "UPDATE $learnpath_view_table " .
  744. "SET " .
  745. "stop_time = ".$this->current_time_stop.", " .
  746. "score = ".$this->current_score.", ".
  747. "WHERE learnpath_id = '".$this->lp_id."'";
  748. //$res = Database::query($sql);
  749. $res = Database::query($res);
  750. if (Database::affected_rows($res) < 1) {
  751. $this->error = 'Could not update learnpath_view table while closing learnpath';
  752. return false;
  753. }
  754. */
  755. }
  756. $this->ordered_items = array ();
  757. $this->index = 0;
  758. unset ($this->lp_id);
  759. //unset other stuff
  760. return true;
  761. }
  762. /**
  763. * Static admin function allowing removal of a learnpath
  764. * @param string Course code
  765. * @param integer Learnpath ID
  766. * @param string Whether to delete data or keep it (default: 'keep', others: 'remove')
  767. * @return boolean True on success, false on failure (might change that to return number of elements deleted)
  768. */
  769. public function delete($course = null, $id = null, $delete = 'keep') {
  770. // TODO: Implement a way of getting this to work when the current object is not set.
  771. // In clear: implement this in the item class as well (abstract class) and use the given ID in queries.
  772. //if (empty($course)) { $course = api_get_course_id(); }
  773. //if (empty($id)) { $id = $this->get_id(); }
  774. // If an ID is specifically given and the current LP is not the same, prevent delete.
  775. if (!empty ($id) && ($id != $this->lp_id)) {
  776. return false;
  777. }
  778. $lp = Database :: get_course_table(TABLE_LP_MAIN);
  779. $lp_item = Database :: get_course_table(TABLE_LP_ITEM); // Proposed by Christophe (clefevre), see below.
  780. $lp_view = Database :: get_course_table(TABLE_LP_VIEW);
  781. $lp_item_view = Database :: get_course_table(TABLE_LP_ITEM_VIEW);
  782. //if ($this->debug > 0) { error_log('New LP - In learnpath::delete()', 0); }
  783. // Delete lp item id.
  784. foreach ($this->items as $id => $dummy) {
  785. //$this->items[$id]->delete();
  786. $sql_del_view = "DELETE FROM $lp_item_view WHERE lp_item_id = '" . $id . "'";
  787. $res_del_item_view = Database::query($sql_del_view);
  788. }
  789. // Proposed by Christophe (nickname: clefevre), see http://www.dokeos.com/forum/viewtopic.php?t=29673
  790. $sql_del_item = "DELETE FROM $lp_item WHERE lp_id = " . $this->lp_id;
  791. $res_del_item = Database::query($sql_del_item);
  792. $sql_del_view = "DELETE FROM $lp_view WHERE lp_id = " . $this->lp_id;
  793. //if ($this->debug > 2) { error_log('New LP - Deleting views bound to lp '.$this->lp_id.': '.$sql_del_view, 0); }
  794. $res_del_view = Database::query($sql_del_view);
  795. $this->toggle_publish($this->lp_id, 'i');
  796. //if ($this->debug > 2) { error_log('New LP - Deleting lp '.$this->lp_id.' of type '.$this->type, 0); }
  797. if ($this->type == 2 || $this->type == 3) {
  798. // This is a scorm learning path, delete the files as well.
  799. $sql = "SELECT path FROM $lp WHERE id = " . $this->lp_id;
  800. $res = Database::query($sql);
  801. if (Database :: num_rows($res) > 0) {
  802. $row = Database :: fetch_array($res);
  803. $path = $row['path'];
  804. $sql = "SELECT id FROM $lp WHERE path = '$path' AND id != " . $this->lp_id;
  805. $res = Database::query($sql);
  806. if (Database :: num_rows($res) > 0) { // Another learning path uses this directory, so don't delete it.
  807. if ($this->debug > 2) {
  808. error_log('New LP - In learnpath::delete(), found other LP using path ' . $path . ', keeping directory', 0);
  809. }
  810. } else {
  811. // No other LP uses that directory, delete it.
  812. $course_rel_dir = api_get_course_path() . '/scorm/'; // scorm dir web path starting from /courses
  813. $course_scorm_dir = api_get_path(SYS_COURSE_PATH) . $course_rel_dir; // The absolute system path for this course.
  814. if ($delete == 'remove' && is_dir($course_scorm_dir . $path) and !empty ($course_scorm_dir)) {
  815. if ($this->debug > 2) {
  816. error_log('New LP - In learnpath::delete(), found SCORM, deleting directory: ' . $course_scorm_dir . $path, 0);
  817. }
  818. // Proposed by Christophe (clefevre).
  819. if (strcmp(substr($path, -2), "/.") == 0) {
  820. $path = substr($path, 0, -1); // Remove "." at the end.
  821. }
  822. //exec('rm -rf ' . $course_scorm_dir . $path); // See Bug #5208, this is not OS-portable way.
  823. rmdirr($course_scorm_dir . $path);
  824. }
  825. }
  826. }
  827. }
  828. $sql_del_lp = "DELETE FROM $lp WHERE id = " . $this->lp_id;
  829. //if ($this->debug > 2) { error_log('New LP - Deleting lp '.$this->lp_id.': '.$sql_del_lp, 0); }
  830. $res_del_lp = Database::query($sql_del_lp);
  831. $this->update_display_order(); // Updates the display order of all lps.
  832. api_item_property_update(api_get_course_info(), TOOL_LEARNPATH, $this->lp_id, 'delete', api_get_user_id());
  833. require_once '../gradebook/lib/be.inc.php';
  834. // Delete link of gradebook tool
  835. //$tbl_grade_link = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_LINK);
  836. /*$sql = 'SELECT gl.id FROM ' . $tbl_grade_link . ' gl WHERE gl.type="4" AND gl.ref_id="' . $id . '";';
  837. $result = Database::query($sql);
  838. $row = Database :: fetch_array($result, 'ASSOC');*/
  839. // Fixing gradebook link deleted see #5229.
  840. /*
  841. if (!empty($row['id'])) {
  842. $link = LinkFactory :: load($row['id']);
  843. if ($link[0] != null) {
  844. $link[0]->delete();
  845. }
  846. }*/
  847. require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/gradebook_functions.inc.php';
  848. $link_id = is_resource_in_course_gradebook(api_get_course_id(), 4 , $id, api_get_session_id());
  849. if ($link_id !== false) {
  850. remove_resource_from_course_gradebook($link_id);
  851. }
  852. if (api_get_setting('search_enabled') == 'true') {
  853. require_once api_get_path(LIBRARY_PATH).'specific_fields_manager.lib.php';
  854. $r = delete_all_values_for_item($this->cc, TOOL_LEARNPATH, $this->lp_id);
  855. }
  856. }
  857. /**
  858. * Removes all the children of one item - dangerous!
  859. * @param integer Element ID of which children have to be removed
  860. * @return integer Total number of children removed
  861. */
  862. public function delete_children_items($id) {
  863. if ($this->debug > 0) {
  864. error_log('New LP - In learnpath::delete_children_items(' . $id . ')', 0);
  865. }
  866. $num = 0;
  867. if (empty ($id) || $id != strval(intval($id))) {
  868. return false;
  869. }
  870. $lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  871. $sql = "SELECT * FROM $lp_item WHERE parent_item_id = $id";
  872. $res = Database::query($sql);
  873. while ($row = Database :: fetch_array($res)) {
  874. $num += $this->delete_children_items($row['id']);
  875. $sql_del = "DELETE FROM $lp_item WHERE id = " . $row['id'];
  876. $res_del = Database::query($sql_del);
  877. $num++;
  878. }
  879. return $num;
  880. }
  881. /**
  882. * Removes an item from the current learnpath
  883. * @param integer Elem ID (0 if first)
  884. * @param integer Whether to remove the resource/data from the system or leave it (default: 'keep', others 'remove')
  885. * @return integer Number of elements moved
  886. * @todo implement resource removal
  887. */
  888. public function delete_item($id, $remove = 'keep') {
  889. if ($this->debug > 0) {
  890. error_log('New LP - In learnpath::delete_item()', 0);
  891. }
  892. // TODO: Implement the resource removal.
  893. if (empty ($id) || $id != strval(intval($id))) {
  894. return false;
  895. }
  896. // First select item to get previous, next, and display order.
  897. $lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  898. $sql_sel = "SELECT * FROM $lp_item WHERE id = $id";
  899. $res_sel = Database::query($sql_sel);
  900. if (Database :: num_rows($res_sel) < 1) {
  901. return false;
  902. }
  903. $row = Database :: fetch_array($res_sel);
  904. $previous = $row['previous_item_id'];
  905. $next = $row['next_item_id'];
  906. $display = $row['display_order'];
  907. $parent = $row['parent_item_id'];
  908. $lp = $row['lp_id'];
  909. // Delete children items.
  910. $num = $this->delete_children_items($id);
  911. if ($this->debug > 2) {
  912. error_log('New LP - learnpath::delete_item() - deleted ' . $num . ' children of element ' . $id, 0);
  913. }
  914. // Now delete the item.
  915. $sql_del = "DELETE FROM $lp_item WHERE id = $id";
  916. if ($this->debug > 2) {
  917. error_log('New LP - Deleting item: ' . $sql_del, 0);
  918. }
  919. $res_del = Database::query($sql_del);
  920. // Now update surrounding items.
  921. $sql_upd = "UPDATE $lp_item SET next_item_id = $next WHERE id = $previous";
  922. $res_upd = Database::query($sql_upd);
  923. $sql_upd = "UPDATE $lp_item SET previous_item_id = $previous WHERE id = $next";
  924. $res_upd = Database::query($sql_upd);
  925. // Now update all following items with new display order.
  926. $sql_all = "UPDATE $lp_item SET display_order = display_order-1 WHERE lp_id = $lp AND parent_item_id = $parent AND display_order > $display";
  927. $res_all = Database::query($sql_all);
  928. //Removing prerequisites since the item will not longer exist
  929. $sql_all = "UPDATE $lp_item SET prerequisite = '' WHERE prerequisite = $id";
  930. $res_all = Database::query($sql_all);
  931. // Remove from search engine if enabled.
  932. if (api_get_setting('search_enabled') == 'true') {
  933. $tbl_se_ref = Database :: get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
  934. $sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s AND ref_id_second_level=%d LIMIT 1';
  935. $sql = sprintf($sql, $tbl_se_ref, $this->cc, TOOL_LEARNPATH, $lp, $id);
  936. $res = Database::query($sql);
  937. if (Database :: num_rows($res) > 0) {
  938. $row2 = Database :: fetch_array($res);
  939. require_once api_get_path(LIBRARY_PATH).'search/DokeosIndexer.class.php';
  940. $di = new DokeosIndexer();
  941. $di->remove_document((int) $row2['search_did']);
  942. }
  943. $sql = 'DELETE FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s AND ref_id_second_level=%d LIMIT 1';
  944. $sql = sprintf($sql, $tbl_se_ref, $this->cc, TOOL_LEARNPATH, $lp, $id);
  945. Database::query($sql);
  946. }
  947. }
  948. /**
  949. * Updates an item's content in place
  950. * @param integer Element ID
  951. * @param integer Parent item ID
  952. * @param integer Previous item ID
  953. * @param string Item title
  954. * @param string Item description
  955. * @param string Prerequisites (optional)
  956. * @param string Indexing terms (optional)
  957. * @param array The array resulting of the $_FILES[mp3] element
  958. * @return boolean True on success, false on error
  959. */
  960. public function edit_item($id, $parent, $previous, $title, $description, $prerequisites = 0, $audio = null, $max_time_allowed = 0) {
  961. if ($this->debug > 0) {
  962. error_log('New LP - In learnpath::edit_item()', 0);
  963. }
  964. if (empty ($max_time_allowed)) {
  965. $max_time_allowed = 0;
  966. }
  967. if (empty ($id) || ($id != strval(intval($id))) || empty ($title)) {
  968. return false;
  969. }
  970. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  971. $sql_select = "SELECT * FROM " . $tbl_lp_item . " WHERE id = " . $id;
  972. $res_select = Database::query($sql_select);
  973. $row_select = Database :: fetch_array($res_select);
  974. $audio_update_sql = '';
  975. if (is_array($audio) && !empty ($audio['tmp_name']) && $audio['error'] === 0) {
  976. // Create the audio folder if it does not exist yet.
  977. global $_course;
  978. $filepath = api_get_path(SYS_COURSE_PATH) . $_course['path'] . '/document/';
  979. if (!is_dir($filepath . 'audio')) {
  980. mkdir($filepath . 'audio', api_get_permissions_for_new_directories());
  981. $audio_id = add_document($_course, '/audio', 'folder', 0, 'audio');
  982. api_item_property_update($_course, TOOL_DOCUMENT, $audio_id, 'FolderCreated', api_get_user_id(), null, null, null, null, api_get_session_id());
  983. }
  984. // Upload file in documents.
  985. $pi = pathinfo($audio['name']);
  986. if ($pi['extension'] == 'mp3') {
  987. $c_det = api_get_course_info($this->cc);
  988. $bp = api_get_path(SYS_COURSE_PATH) . $c_det['path'] . '/document';
  989. $path = handle_uploaded_document($c_det, $audio, $bp, '/audio', api_get_user_id(), 0, null, '', 0, 'rename', false, 0);
  990. $path = substr($path, 7);
  991. // Update reference in lp_item - audio path is the path from inside de document/audio/ dir.
  992. $audio_update_sql = ", audio = '" . Database :: escape_string($path) . "' ";
  993. }
  994. }
  995. $same_parent = ($row_select['parent_item_id'] == $parent) ? true : false;
  996. $same_previous = ($row_select['previous_item_id'] == $previous) ? true : false;
  997. // TODO: htmlspecialchars to be checked for encoding related problems.
  998. if ($same_parent && $same_previous) {
  999. // Only update title and description.
  1000. $sql_update = " UPDATE " . $tbl_lp_item . "
  1001. SET title = '" . $this->escape_string($title) . "',
  1002. prerequisite = '" . $prerequisites . "',
  1003. description = '" . $this->escape_string($description) . "'
  1004. " . $audio_update_sql . ",
  1005. max_time_allowed = '" . $this->escape_string($max_time_allowed) . "'
  1006. WHERE id = " . $id;
  1007. $res_update = Database::query($sql_update);
  1008. } else {
  1009. $old_parent = $row_select['parent_item_id'];
  1010. $old_previous = $row_select['previous_item_id'];
  1011. $old_next = $row_select['next_item_id'];
  1012. $old_order = $row_select['display_order'];
  1013. $old_prerequisite = $row_select['prerequisite'];
  1014. $old_max_time_allowed = $row_select['max_time_allowed'];
  1015. /* BEGIN -- virtually remove the current item id */
  1016. /* for the next and previous item it is like the current item doesn't exist anymore */
  1017. if ($old_previous != 0) {
  1018. $sql_update_next = "
  1019. UPDATE " . $tbl_lp_item . "
  1020. SET next_item_id = " . $old_next . "
  1021. WHERE id = " . $old_previous;
  1022. $res_update_next = Database::query($sql_update_next);
  1023. //echo '<p>' . $sql_update_next . '</p>';
  1024. }
  1025. if ($old_next != 0) {
  1026. $sql_update_previous = "
  1027. UPDATE " . $tbl_lp_item . "
  1028. SET previous_item_id = " . $old_previous . "
  1029. WHERE id = " . $old_next;
  1030. $res_update_previous = Database::query($sql_update_previous);
  1031. //echo '<p>' . $sql_update_previous . '</p>';
  1032. }
  1033. // display_order - 1 for every item with a display_order bigger then the display_order of the current item.
  1034. $sql_update_order = "
  1035. UPDATE " . $tbl_lp_item . "
  1036. SET display_order = display_order - 1
  1037. WHERE
  1038. display_order > " . $old_order . " AND lp_id = " . $this->lp_id . " AND
  1039. parent_item_id = " . $old_parent;
  1040. $res_update_order = Database::query($sql_update_order);
  1041. //echo '<p>' . $sql_update_order . '</p>';
  1042. /* END -- virtually remove the current item id */
  1043. /* BEGIN -- update the current item id to his new location */
  1044. if ($previous == 0) {
  1045. // Select the data of the item that should come after the current item.
  1046. $sql_select_old = "
  1047. SELECT
  1048. id,
  1049. display_order
  1050. FROM " . $tbl_lp_item . "
  1051. WHERE
  1052. lp_id = " . $this->lp_id . " AND
  1053. parent_item_id = " . $parent . " AND
  1054. previous_item_id = " . $previous;
  1055. $res_select_old = Database::query($sql_select_old);
  1056. $row_select_old = Database :: fetch_array($res_select_old);
  1057. //echo '<p>' . $sql_select_old . '</p>';
  1058. // If the new parent didn't have children before.
  1059. if (Database :: num_rows($res_select_old) == 0) {
  1060. $new_next = 0;
  1061. $new_order = 1;
  1062. } else {
  1063. $new_next = $row_select_old['id'];
  1064. $new_order = $row_select_old['display_order'];
  1065. }
  1066. //echo 'New next_item_id of current item: ' . $new_next . '<br />';
  1067. //echo 'New previous_item_id of current item: ' . $previous . '<br />';
  1068. //echo 'New display_order of current item: ' . $new_order . '<br />';
  1069. } else {
  1070. // Select the data of the item that should come before the current item.
  1071. $sql_select_old = "
  1072. SELECT
  1073. next_item_id,
  1074. display_order
  1075. FROM " . $tbl_lp_item . "
  1076. WHERE id = " . $previous;
  1077. $res_select_old = Database::query($sql_select_old);
  1078. $row_select_old = Database :: fetch_array($res_select_old);
  1079. //echo '<p>' . $sql_select_old . '</p>';
  1080. //echo 'New next_item_id of current item: ' . $row_select_old['next_item_id'] . '<br />';
  1081. //echo 'New previous_item_id of current item: ' . $previous . '<br />';
  1082. //echo 'New display_order of current item: ' . ($row_select_old['display_order'] + 1) . '<br />';
  1083. $new_next = $row_select_old['next_item_id'];
  1084. $new_order = $row_select_old['display_order'] + 1;
  1085. }
  1086. // TODO: htmlspecialchars to be checked for encoding related problems.
  1087. // Update the current item with the new data.
  1088. $sql_update = "
  1089. UPDATE " . $tbl_lp_item . "
  1090. SET
  1091. title = '" . $this->escape_string($title) . "',
  1092. description = '" . $this->escape_string($description) . "',
  1093. parent_item_id = " . $parent . ",
  1094. previous_item_id = " . $previous . ",
  1095. next_item_id = " . $new_next . ",
  1096. display_order = " . $new_order . "
  1097. " . $audio_update_sql . "
  1098. WHERE id = " . $id;
  1099. $res_update_next = Database::query($sql_update);
  1100. //echo '<p>' . $sql_update . '</p>';
  1101. if ($previous != 0) {
  1102. // Update the previous item's next_item_id.
  1103. $sql_update_previous = "
  1104. UPDATE " . $tbl_lp_item . "
  1105. SET next_item_id = " . $id . "
  1106. WHERE id = " . $previous;
  1107. $res_update_next = Database::query($sql_update_previous);
  1108. //echo '<p>' . $sql_update_previous . '</p>';
  1109. }
  1110. if ($new_next != 0) {
  1111. // Update the next item's previous_item_id.
  1112. $sql_update_next = "
  1113. UPDATE " . $tbl_lp_item . "
  1114. SET previous_item_id = " . $id . "
  1115. WHERE id = " . $new_next;
  1116. $res_update_next = Database::query($sql_update_next);
  1117. //echo '<p>' . $sql_update_next . '</p>';
  1118. }
  1119. if ($old_prerequisite != $prerequisites) {
  1120. $sql_update_next = "
  1121. UPDATE " . $tbl_lp_item . "
  1122. SET prerequisite = " . $prerequisites . "
  1123. WHERE id = " . $id;
  1124. $res_update_next = Database::query($sql_update_next);
  1125. }
  1126. if ($old_max_time_allowed != $max_time_allowed) {
  1127. $sql_update_max_time_allowed = "
  1128. UPDATE " . $tbl_lp_item . "
  1129. SET max_time_allowed = " . $max_time_allowed . "
  1130. WHERE id = " . $id;
  1131. $res_update_max_time_allowed = Database::query($sql_update_max_time_allowed);
  1132. }
  1133. // Update all the items with the same or a bigger display_order than the current item.
  1134. $sql_update_order = "
  1135. UPDATE " . $tbl_lp_item . "
  1136. SET display_order = display_order + 1
  1137. WHERE
  1138. lp_id = " . $this->get_id() . " AND
  1139. id <> " . $id . " AND
  1140. parent_item_id = " . $parent . " AND
  1141. display_order >= " . $new_order;
  1142. $res_update_next = Database::query($sql_update_order);
  1143. }
  1144. }
  1145. /**
  1146. * Updates an item's prereq in place
  1147. * @param integer Element ID
  1148. * @param string Prerequisite Element ID
  1149. * @param string Prerequisite item type
  1150. * @param string Prerequisite min score
  1151. * @param string Prerequisite max score
  1152. * @return boolean True on success, false on error
  1153. */
  1154. public function edit_item_prereq($id, $prerequisite_id, $mastery_score = 0, $max_score = 100) {
  1155. if ($this->debug > 0) {
  1156. error_log('New LP - In learnpath::edit_item_prereq(' . $id . ',' . $prerequisite_id . ',' . $mastery_score . ',' . $max_score . ')', 0);
  1157. }
  1158. if (empty ($id) or ($id != strval(intval($id))) or empty ($prerequisite_id)) {
  1159. return false;
  1160. }
  1161. $prerequisite_id = $this->escape_string($prerequisite_id);
  1162. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  1163. if (!is_numeric($mastery_score) || $mastery_score < 0)
  1164. $mastery_score = 0;
  1165. if (!is_numeric($max_score) || $max_score < 0)
  1166. $max_score = 100;
  1167. if ($mastery_score > $max_score)
  1168. $max_score = $mastery_score;
  1169. if (!is_numeric($prerequisite_id))
  1170. $prerequisite_id = 'NULL';
  1171. $sql_upd = " UPDATE " . $tbl_lp_item . "
  1172. SET prerequisite = " . $prerequisite_id . " WHERE id = " . $id;
  1173. $res_upd = Database::query($sql_upd);
  1174. if ($prerequisite_id != 'NULL' && $prerequisite_id != '') {
  1175. $sql_upd = " UPDATE " . $tbl_lp_item . " SET
  1176. mastery_score = " . $mastery_score .
  1177. //", max_score = " . $max_score . " " . // Max score cannot be changed in the form anyway - see display_item_prerequisites_form().
  1178. " WHERE ref = '" . $prerequisite_id . "'"; // Will this be enough to ensure unicity?
  1179. $res_upd = Database::query($sql_upd);
  1180. }
  1181. // TODO: Update the item object (can be ignored for now because refreshed).
  1182. return true;
  1183. }
  1184. /**
  1185. * Escapes a string with the available database escape function
  1186. * @param string String to escape
  1187. * @return string String escaped
  1188. */
  1189. public function escape_string($string) {
  1190. //if ($this->debug > 0) { error_log('New LP - In learnpath::escape_string('.$string.')', 0); }
  1191. return Database :: escape_string($string);
  1192. }
  1193. /**
  1194. * Static admin function exporting a learnpath into a zip file
  1195. * @param string Export type (scorm, zip, cd)
  1196. * @param string Course code
  1197. * @param integer Learnpath ID
  1198. * @param string Zip file name
  1199. * @return string Zip file path (or false on error)
  1200. */
  1201. public function export_lp($type, $course, $id, $zipname) {
  1202. //if ($this->debug > 0) { error_log('New LP - In learnpath::export_lp()', 0); }
  1203. if (empty($type) || empty($course) || empty($id) || empty($zipname)) {
  1204. return false;
  1205. }
  1206. $url = '';
  1207. switch ($type) {
  1208. case 'scorm':
  1209. break;
  1210. case 'zip':
  1211. break;
  1212. case 'cdrom':
  1213. break;
  1214. }
  1215. return $url;
  1216. }
  1217. /**
  1218. * Gets all the chapters belonging to the same parent as the item/chapter given
  1219. * Can also be called as abstract method
  1220. * @param integer Item ID
  1221. * @return array A list of all the "brother items" (or an empty array on failure)
  1222. */
  1223. public function get_brother_chapters($id) {
  1224. if ($this->debug > 0) {
  1225. error_log('New LP - In learnpath::get_brother_chapters()', 0);
  1226. }
  1227. if (empty ($id) OR $id != strval(intval($id))) {
  1228. return array ();
  1229. }
  1230. $lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  1231. $sql_parent = "SELECT * FROM $lp_item WHERE id = $id AND item_type='dokeos_chapter'";
  1232. $res_parent = Database::query($sql_parent);
  1233. if (Database :: num_rows($res_parent) > 0) {
  1234. $row_parent = Database :: fetch_array($res_parent);
  1235. $parent = $row_parent['parent_item_id'];
  1236. $sql_bros = "SELECT * FROM $lp_item WHERE parent_item_id = $parent AND id = $id AND item_type='dokeos_chapter' ORDER BY display_order";
  1237. $res_bros = Database::query($sql_bros);
  1238. $list = array ();
  1239. while ($row_bro = Database :: fetch_array($res_bros)) {
  1240. $list[] = $row_bro;
  1241. }
  1242. return $list;
  1243. }
  1244. return array ();
  1245. }
  1246. /**
  1247. * Gets all the items belonging to the same parent as the item given
  1248. * Can also be called as abstract method
  1249. * @param integer Item ID
  1250. * @return array A list of all the "brother items" (or an empty array on failure)
  1251. */
  1252. public function get_brother_items($id) {
  1253. if ($this->debug > 0) {
  1254. error_log('New LP - In learnpath::get_brother_items(' . $id . ')', 0);
  1255. }
  1256. if (empty ($id) OR $id != strval(intval($id))) {
  1257. return array ();
  1258. }
  1259. $lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  1260. $sql_parent = "SELECT * FROM $lp_item WHERE id = $id";
  1261. $res_parent = Database::query($sql_parent);
  1262. if (Database :: num_rows($res_parent) > 0) {
  1263. $row_parent = Database :: fetch_array($res_parent);
  1264. $parent = $row_parent['parent_item_id'];
  1265. $sql_bros = "SELECT * FROM $lp_item WHERE parent_item_id = $parent ORDER BY display_order";
  1266. $res_bros = Database::query($sql_bros);
  1267. $list = array ();
  1268. while ($row_bro = Database :: fetch_array($res_bros)) {
  1269. $list[] = $row_bro;
  1270. }
  1271. return $list;
  1272. }
  1273. return array ();
  1274. }
  1275. /**
  1276. * Get the specific prefix index terms of this learning path
  1277. * @return array Array of terms
  1278. */
  1279. public function get_common_index_terms_by_prefix($prefix) {
  1280. require_once api_get_path(LIBRARY_PATH).'specific_fields_manager.lib.php';
  1281. $terms = get_specific_field_values_list_by_prefix($prefix, $this->cc, TOOL_LEARNPATH, $this->lp_id);
  1282. $prefix_terms = array();
  1283. if (!empty($terms)) {
  1284. foreach ($terms as $term) {
  1285. $prefix_terms[] = $term['value'];
  1286. }
  1287. }
  1288. return $prefix_terms;
  1289. }
  1290. /**
  1291. * Gets the number of items currently completed
  1292. * @return integer The number of items currently completed
  1293. */
  1294. public function get_complete_items_count() {
  1295. if ($this->debug > 0) {
  1296. error_log('New LP - In learnpath::get_complete_items_count()', 0);
  1297. }
  1298. $i = 0;
  1299. foreach ($this->items as $id => $dummy) {
  1300. // Trying failed and browsed considered "progressed" as well.
  1301. if ($this->items[$id]->status_is(array (
  1302. 'completed',
  1303. 'passed',
  1304. 'succeeded',
  1305. 'browsed',
  1306. 'failed'
  1307. )) && $this->items[$id]->get_type() != 'dokeos_chapter' && $this->items[$id]->get_type() != 'dir') {
  1308. $i++;
  1309. }
  1310. }
  1311. return $i;
  1312. }
  1313. /**
  1314. * Gets the current item ID
  1315. * @return integer The current learnpath item id
  1316. */
  1317. public function get_current_item_id() {
  1318. $current = 0;
  1319. if ($this->debug > 0) {
  1320. error_log('New LP - In learnpath::get_current_item_id()', 0);
  1321. }
  1322. if (!empty ($this->current)) {
  1323. $current = $this->current;
  1324. }
  1325. if ($this->debug > 2) {
  1326. error_log('New LP - In learnpath::get_current_item_id() - Returning ' . $current, 0);
  1327. }
  1328. return $current;
  1329. }
  1330. /**
  1331. * Force to get the first learnpath item id
  1332. * @return integer The current learnpath item id
  1333. */
  1334. public function get_first_item_id() {
  1335. $current = 0;
  1336. if (is_array($this->ordered_items)) {
  1337. $current = $this->ordered_items[0];
  1338. }
  1339. return $current;
  1340. }
  1341. /**
  1342. * Gets the total number of items available for viewing in this SCORM
  1343. * @return integer The total number of items
  1344. */
  1345. public function get_total_items_count() {
  1346. if ($this->debug > 0) {
  1347. error_log('New LP - In learnpath::get_total_items_count()', 0);
  1348. }
  1349. return count($this->items);
  1350. }
  1351. /**
  1352. * Gets the total number of items available for viewing in this SCORM but without chapters
  1353. * @return integer The total no-chapters number of items
  1354. */
  1355. public function get_total_items_count_without_chapters() {
  1356. if ($this->debug > 0) {
  1357. error_log('New LP - In learnpath::get_total_items_count_without_chapters()', 0);
  1358. }
  1359. $total = 0;
  1360. foreach ($this->items as $temp => $temp2) {
  1361. if (!in_array($temp2->get_type(), array (
  1362. 'dokeos_chapter',
  1363. 'chapter',
  1364. 'dir'
  1365. )))
  1366. $total++;
  1367. }
  1368. return $total;
  1369. }
  1370. /**
  1371. * Gets the first element URL.
  1372. * @return string URL to load into the viewer
  1373. */
  1374. public function first() {
  1375. if ($this->debug > 0) {
  1376. error_log('New LP - In learnpath::first()', 0);
  1377. }
  1378. // Test if the last_item_seen exists and is not a dir.
  1379. if (count($this->ordered_items) == 0) {
  1380. $this->index = 0;
  1381. }
  1382. if (!empty($this->last_item_seen) && !empty($this->items[$this->last_item_seen]) && $this->items[$this->last_item_seen]->get_type() != 'dir' && $this->items[$this->last_item_seen]->get_type() != 'dokeos_chapter' && !$this->items[$this->last_item_seen]->is_done()) {
  1383. if ($this->debug > 2) {
  1384. error_log('New LP - In learnpath::first() - Last item seen is ' . $this->last_item_seen . ' of type ' . $this->items[$this->last_item_seen]->get_type(), 0);
  1385. }
  1386. $index = -1;
  1387. foreach ($this->ordered_items as $myindex => $item_id) {
  1388. if ($item_id == $this->last_item_seen) {
  1389. $index = $myindex;
  1390. break;
  1391. }
  1392. }
  1393. if ($index == -1) {
  1394. // Index hasn't changed, so item not found - panic (this shouldn't happen).
  1395. if ($this->debug > 2) {
  1396. error_log('New LP - Last item (' . $this->last_item_seen . ') was found in items but not in ordered_items, panic!', 0);
  1397. }
  1398. return false;
  1399. } else {
  1400. $this->last = $this->last_item_seen;
  1401. $this->current = $this->last_item_seen;
  1402. $this->index = $index;
  1403. }
  1404. } else {
  1405. if ($this->debug > 2) {
  1406. error_log('New LP - In learnpath::first() - No last item seen', 0);
  1407. }
  1408. $index = 0;
  1409. // Loop through all ordered items and stop at the first item that is
  1410. // not a directory *and* that has not been completed yet.
  1411. while (!empty($this->ordered_items[$index]) AND is_a($this->items[$this->ordered_items[$index]], 'learnpathItem') AND ($this->items[$this->ordered_items[$index]]->get_type() == 'dir' OR $this->items[$this->ordered_items[$index]]->get_type() == 'dokeos_chapter' OR $this->items[$this->ordered_items[$index]]->is_done() === true) AND $index < $this->max_ordered_items) {
  1412. $index++;
  1413. }
  1414. $this->last = $this->current;
  1415. // current is
  1416. $this->current = $this->ordered_items[$index];
  1417. $this->index = $index;
  1418. if ($this->debug > 2) {
  1419. error_log('New LP - In learnpath::first() - No last item seen. New last = ' . $this->last . '(' . $this->ordered_items[$index] . ')', 0);
  1420. }
  1421. }
  1422. if ($this->debug > 2) {
  1423. error_log('New LP - In learnpath::first() - First item is ' . $this->get_current_item_id());
  1424. }
  1425. }
  1426. /**
  1427. * Gets the information about an item in a format usable as JavaScript to update
  1428. * the JS API by just printing this content into the <head> section of the message frame
  1429. * @param integer Item ID
  1430. * @return string
  1431. */
  1432. public function get_js_info($item_id = '') {
  1433. if ($this->debug > 0) {
  1434. error_log('New LP - In learnpath::get_js_info(' . $item_id . ')', 0);
  1435. }
  1436. $info = '';
  1437. $item_id = $this->escape_string($item_id);
  1438. if (!empty($item_id) && is_object($this->items[$item_id])) {
  1439. //if item is defined, return values from DB
  1440. $oItem = $this->items[$item_id];
  1441. $info .= '<script language="javascript">';
  1442. $info .= "top.set_score(" . $oItem->get_score() . ");\n";
  1443. $info .= "top.set_max(" . $oItem->get_max() . ");\n";
  1444. $info .= "top.set_min(" . $oItem->get_min() . ");\n";
  1445. $info .= "top.set_lesson_status('" . $oItem->get_status() . "');";
  1446. $info .= "top.set_session_time('" . $oItem->get_scorm_time('js') . "');";
  1447. $info .= "top.set_suspend_data('" . $oItem->get_suspend_data() . "');";
  1448. $info .= "top.set_saved_lesson_status('" . $oItem->get_status() . "');";
  1449. $info .= "top.set_flag_synchronized();";
  1450. $info .= '</script>';
  1451. if ($this->debug > 2) {
  1452. error_log('New LP - in learnpath::get_js_info(' . $item_id . ') - returning: ' . $info, 0);
  1453. }
  1454. return $info;
  1455. } else {
  1456. // If item_id is empty, just update to default SCORM data.
  1457. $info .= '<script language="javascript">';
  1458. $info .= "top.set_score(" . learnpathItem :: get_score() . ");\n";
  1459. $info .= "top.set_max(" . learnpathItem :: get_max() . ");\n";
  1460. $info .= "top.set_min(" . learnpathItem :: get_min() . ");\n";
  1461. $info .= "top.set_lesson_status('" . learnpathItem :: get_status() . "');";
  1462. $info .= "top.set_session_time('" . learnpathItem :: get_scorm_time('js') . "');";
  1463. $info .= "top.set_suspend_data('" . learnpathItem :: get_suspend_data() . "');";
  1464. $info .= "top.set_saved_lesson_status('" . learnpathItem :: get_status() . "');";
  1465. $info .= "top.set_flag_synchronized();";
  1466. $info .= '</script>';
  1467. if ($this->debug > 2) {
  1468. error_log('New LP - in learnpath::get_js_info(' . $item_id . ') - returning: ' . $info, 0);
  1469. }
  1470. return $info;
  1471. }
  1472. }
  1473. /**
  1474. * Gets the js library from the database
  1475. * @return string The name of the javascript library to be used
  1476. */
  1477. public function get_js_lib() {
  1478. $lib = '';
  1479. if (!empty ($this->js_lib)) {
  1480. $lib = $this->js_lib;
  1481. }
  1482. return $lib;
  1483. }
  1484. /**
  1485. * Gets the learnpath database ID
  1486. * @return integer Learnpath ID in the lp table
  1487. */
  1488. public function get_id() {
  1489. //if ($this->debug > 0) { error_log('New LP - In learnpath::get_id()', 0); }
  1490. if (!empty ($this->lp_id)) {
  1491. return $this->lp_id;
  1492. } else {
  1493. return 0;
  1494. }
  1495. }
  1496. /**
  1497. * Gets the last element URL.
  1498. * @return string URL to load into the viewer
  1499. */
  1500. public function get_last() {
  1501. if ($this->debug > 0) {
  1502. error_log('New LP - In learnpath::get_last()', 0);
  1503. }
  1504. $this->index = count($this->ordered_items) - 1;
  1505. return $this->ordered_items[$this->index];
  1506. }
  1507. /**
  1508. * Gets the navigation bar for the learnpath display screen
  1509. * @return string The HTML string to use as a navigation bar
  1510. */
  1511. public function get_navigation_bar() {
  1512. if ($this->debug > 0) {
  1513. error_log('New LP - In learnpath::get_navigation_bar()', 0);
  1514. }
  1515. // TODO: Find a good value for the following variables.
  1516. $file = '';
  1517. $openDir = '';
  1518. $edoceo = '';
  1519. $time = 0;
  1520. $navbar = '';
  1521. $RequestUri = '';
  1522. $mycurrentitemid = $this->get_current_item_id();
  1523. if ($this->mode == 'fullscreen') {
  1524. $navbar = '<table cellpadding="0" cellspacing="0" align="left">' . "\n" .
  1525. ' <tr> ' . "\n" .
  1526. ' <td>' . "\n" .
  1527. ' <div class="buttons">' . "\n" .
  1528. ' <a href="lp_controller.php?action=stats" onClick="window.parent.API.save_asset();return true;" target="content_name_blank" title="stats" id="stats_link"><img border="0" src="../img/lp_stats.gif" title="' . get_lang('Reporting') . '"></a>' . "\n" .
  1529. ' <a href="" onClick="switch_item(' . $mycurrentitemid . ',\'previous\');return false;" title="previous"><img border="0" src="../img/lp_leftarrow.gif" title="' . get_lang('ScormPrevious') . '"></a>' . "\n" .
  1530. ' <a href="" onClick="switch_item(' . $mycurrentitemid . ',\'next\');return false;" title="next" ><img border="0" src="../img/lp_rightarrow.gif" title="' . get_lang('ScormNext') . '"></a>' . "\n" .
  1531. //' <a href="lp_controller.php?action=mode&mode=embedded" target="_top" title="embedded mode"><img border="0" src="../img/view_choose.gif" title="'.get_lang('ScormExitFullScreen').'"></a>'."\n" .
  1532. //' <a href="lp_controller.php?action=list" target="_top" title="learnpaths list"><img border="0" src="../img/exit.png" title="Exit"></a>'."\n" .
  1533. ' </div>' . "\n" .
  1534. ' </td>' . "\n" .
  1535. ' </tr>' . "\n" .
  1536. '</table>';
  1537. } else {
  1538. $navbar = '<table cellpadding="0" cellspacing="0" align="left">' . "\n" .
  1539. ' <tr> ' . "\n" .
  1540. ' <td>' . "\n" .
  1541. ' <div class="buttons">' . "\n" .
  1542. ' <a href="lp_controller.php?action=stats" onClick="window.parent.API.save_asset();return true;" target="content_name" title="stats" id="stats_link"><img border="0" src="../img/lp_stats.gif" title="' . get_lang('Reporting') . '"></a>' . "\n" .
  1543. ' <a href="" onClick="switch_item(' . $mycurrentitemid . ',\'previous\');return false;" title="previous"><img border="0" src="../img/lp_leftarrow.gif" title="' . get_lang('ScormPrevious') . '"></a>' . "\n" .
  1544. ' <a href="" onClick="switch_item(' . $mycurrentitemid . ',\'next\');return false;" title="next" ><img border="0" src="../img/lp_rightarrow.gif" title="' . get_lang('ScormNext') . '"></a>' . "\n" .
  1545. // ' <a href="lp_controller.php?action=mode&mode=fullscreen" target="_top" title="fullscreen"><img border="0" src="../img/view_fullscreen.gif" width="18" height="18" title="'.get_lang('ScormFullScreen').'"></a>'."\n" .
  1546. ' </div>' . "\n" .
  1547. ' </td>' . "\n" .
  1548. ' </tr>' . "\n" .
  1549. '</table>';
  1550. }
  1551. return $navbar;
  1552. }
  1553. /**
  1554. * Gets the next resource in queue (url).
  1555. * @return string URL to load into the viewer
  1556. */
  1557. public function get_next_index() {
  1558. if ($this->debug > 0) {
  1559. error_log('New LP - In learnpath::get_next_index()', 0);
  1560. }
  1561. // TODO
  1562. $index = $this->index;
  1563. $index++;
  1564. if ($this->debug > 2) {
  1565. error_log('New LP - Now looking at ordered_items[' . ($index) . '] - type is ' . $this->items[$this->ordered_items[$index]]->type, 0);
  1566. }
  1567. while (!empty ($this->ordered_items[$index]) AND ($this->items[$this->ordered_items[$index]]->get_type() == 'dir' || $this->items[$this->ordered_items[$index]]->get_type() == 'dokeos_chapter') AND $index < $this->max_ordered_items) {
  1568. $index++;
  1569. if ($index == $this->max_ordered_items){
  1570. if ($this->items[$this->ordered_items[$index]]->get_type() == 'dir' || $this->items[$this->ordered_items[$index]]->get_type() == 'dokeos_chapter') {
  1571. return $this->index;
  1572. } else {
  1573. return $index;
  1574. }
  1575. }
  1576. }
  1577. if (empty ($this->ordered_items[$index])) {
  1578. return $this->index;
  1579. }
  1580. if ($this->debug > 2) {
  1581. error_log('New LP - index is now ' . $index, 0);
  1582. }
  1583. return $index;
  1584. }
  1585. /**
  1586. * Gets item_id for the next element
  1587. * @return integer Next item (DB) ID
  1588. */
  1589. public function get_next_item_id() {
  1590. if ($this->debug > 0) {
  1591. error_log('New LP - In learnpath::get_next_item_id()', 0);
  1592. }
  1593. $new_index = $this->get_next_index();
  1594. if (!empty ($new_index)) {
  1595. if (isset ($this->ordered_items[$new_index])) {
  1596. if ($this->debug > 2) {
  1597. error_log('New LP - In learnpath::get_next_index() - Returning ' . $this->ordered_items[$new_index], 0);
  1598. }
  1599. return $this->ordered_items[$new_index];
  1600. }
  1601. }
  1602. if ($this->debug > 2) {
  1603. error_log('New LP - In learnpath::get_next_index() - Problem - Returning 0', 0);
  1604. }
  1605. return 0;
  1606. }
  1607. /**
  1608. * Returns the package type ('scorm','aicc','scorm2004','dokeos','ppt'...)
  1609. *
  1610. * Generally, the package provided is in the form of a zip file, so the function
  1611. * has been written to test a zip file. If not a zip, the function will return the
  1612. * default return value: ''
  1613. * @param string the path to the file
  1614. * @param string the original name of the file
  1615. * @return string 'scorm','aicc','scorm2004','dokeos' or '' if the package cannot be recognized
  1616. */
  1617. public function get_package_type($file_path, $file_name) {
  1618. // Get name of the zip file without the extension.
  1619. $file_info = pathinfo($file_name);
  1620. $filename = $file_info['basename']; // Name including extension.
  1621. $extension = $file_info['extension']; // Extension only.
  1622. if (!empty($_POST['ppt2lp']) && !in_array(strtolower($extension), array (
  1623. 'dll',
  1624. 'exe'
  1625. ))) {
  1626. return 'oogie';
  1627. }
  1628. if (!empty($_POST['woogie']) && !in_array(strtolower($extension), array (
  1629. 'dll',
  1630. 'exe'
  1631. ))) {
  1632. return 'woogie';
  1633. }
  1634. $file_base_name = str_replace('.' . $extension, '', $filename); // Filename without its extension.
  1635. $zipFile = new pclZip($file_path);
  1636. // Check the zip content (real size and file extension).
  1637. $zipContentArray = $zipFile->listContent();
  1638. $package_type = '';
  1639. $at_root = false;
  1640. $manifest = '';
  1641. // The following loop should be stopped as soon as we found the right imsmanifest.xml (how to recognize it?).
  1642. if (is_array($zipContentArray) && count($zipContentArray) > 0) {
  1643. foreach ($zipContentArray as $thisContent) {
  1644. if (preg_match('~.(php.*|phtml)$~i', $thisContent['filename'])) {
  1645. // New behaviour: Don't do anything. These files will be removed in scorm::import_package.
  1646. }
  1647. elseif (stristr($thisContent['filename'], 'imsmanifest.xml') !== false) {
  1648. $manifest = $thisContent['filename']; // Just the relative directory inside scorm/
  1649. $package_type = 'scorm';
  1650. break; // Exit the foreach loop.
  1651. }
  1652. elseif (preg_match('/aicc\//i', $thisContent['filename'])) {
  1653. // If found an aicc directory... (!= false means it cannot be false (error) or 0 (no match)).
  1654. $package_type = 'aicc';
  1655. //break; // Don't exit the loop, because if we find an imsmanifest afterwards, we want it, not the AICC.
  1656. } else {
  1657. $package_type = '';
  1658. }
  1659. }
  1660. }
  1661. return $package_type;
  1662. }
  1663. /**
  1664. * Gets the previous resource in queue (url). Also initialises time values for this viewing
  1665. * @return string URL to load into the viewer
  1666. */
  1667. public function get_previous_index() {
  1668. if ($this->debug > 0) {
  1669. error_log('New LP - In learnpath::get_previous_index()', 0);
  1670. }
  1671. $index = $this->index;
  1672. if (isset ($this->ordered_items[$index -1])) {
  1673. $index--;
  1674. while (isset ($this->ordered_items[$index]) AND ($this->items[$this->ordered_items[$index]]->get_type() == 'dir' || $this->items[$this->ordered_items[$index]]->get_type() == 'dokeos_chapter')) {
  1675. $index--;
  1676. if ($index < 0) {
  1677. return $this->index;
  1678. }
  1679. }
  1680. } else {
  1681. if ($this->debug > 2) {
  1682. error_log('New LP - get_previous_index() - there was no previous index available, reusing ' . $index, 0);
  1683. }
  1684. // There is no previous item.
  1685. }
  1686. return $index;
  1687. }
  1688. /**
  1689. * Gets item_id for the next element
  1690. * @return integer Previous item (DB) ID
  1691. */
  1692. public function get_previous_item_id() {
  1693. if ($this->debug > 0) {
  1694. error_log('New LP - In learnpath::get_previous_item_id()', 0);
  1695. }
  1696. $new_index = $this->get_previous_index();
  1697. return $this->ordered_items[$new_index];
  1698. }
  1699. /**
  1700. * Gets the progress value from the progress_db attribute
  1701. * @return integer Current progress value
  1702. */
  1703. public function get_progress() {
  1704. if ($this->debug > 0) {
  1705. error_log('New LP - In learnpath::get_progress()', 0);
  1706. }
  1707. if (!empty ($this->progress_db)) {
  1708. return $this->progress_db;
  1709. }
  1710. return 0;
  1711. }
  1712. /**
  1713. * Gets the progress value from the progress field in the database (allows use as abstract method)
  1714. * @param integer Learnpath ID
  1715. * @param integer User ID
  1716. * @param string Mode of display ('%','abs' or 'both')
  1717. * @param string Course database name (optional, defaults to '')
  1718. * @param boolean Whether to return null if no record was found (true), or 0 (false) (optional, defaults to false)
  1719. * @return integer Current progress value as found in the database
  1720. */
  1721. public function get_db_progress($lp_id, $user_id, $mode = '%', $course_code = '', $sincere = false,$session_id = 0) {
  1722. //if ($this->debug > 0) { error_log('New LP - In learnpath::get_db_progress()', 0); }
  1723. $session_id = intval($session_id);
  1724. $course_info = api_get_course_info($course_code);
  1725. $session_condition = api_get_session_condition($session_id);
  1726. $table = Database :: get_course_table(TABLE_LP_VIEW);
  1727. $sql = "SELECT * FROM $table WHERE lp_id = $lp_id AND user_id = $user_id $session_condition";
  1728. $res = Database::query($sql);
  1729. $view_id = 0;
  1730. if (Database :: num_rows($res) > 0) {
  1731. $row = Database :: fetch_array($res);
  1732. $progress = $row['progress'];
  1733. $view_id = $row['id'];
  1734. } else {
  1735. if ($sincere) {
  1736. return null;
  1737. }
  1738. }
  1739. if (empty ($progress)) {
  1740. $progress = '0';
  1741. }
  1742. $course_id = $course_info['real_id'];
  1743. if ($mode == '%') {
  1744. return $progress . '%';
  1745. } else {
  1746. // Get the number of items completed and the number of items total.
  1747. $tbl = Database :: get_course_table(TABLE_LP_ITEM);
  1748. $sql = "SELECT count(*) FROM $tbl
  1749. WHERE c_id = $course_id AND lp_id = " . $lp_id . " AND item_type NOT IN('dokeos_chapter','chapter','dir')";
  1750. $res = Database::query($sql);
  1751. $row = Database :: fetch_array($res);
  1752. $total = $row[0];
  1753. $tbl_item_view = Database :: get_course_table(TABLE_LP_ITEM_VIEW);
  1754. $tbl_item = Database :: get_course_table(TABLE_LP_ITEM);
  1755. //$sql = "SELECT count(distinct(lp_item_id)) FROM $tbl WHERE lp_view_id = ".$view_id." AND status IN ('passed','completed','succeeded')";
  1756. // Trying as also counting browsed and failed items.
  1757. $sql = "SELECT count(distinct(lp_item_id))
  1758. FROM $tbl_item_view as item_view
  1759. INNER JOIN $tbl_item as item
  1760. ON item.id = item_view.lp_item_id
  1761. AND item_type NOT IN('dokeos_chapter','chapter','dir')
  1762. WHERE
  1763. item_view.c_id = $course_id AND
  1764. item.c_id = $course_id AND
  1765. lp_view_id = " . $view_id . " AND
  1766. status IN ('passed','completed','succeeded','browsed','failed')"; //echo '<br />';
  1767. $res = Database::query($sql);
  1768. $row = Database :: fetch_array($res);
  1769. $completed = $row[0];
  1770. if ($mode == 'abs') {
  1771. return $completed . '/' . $total;
  1772. }
  1773. elseif ($mode == 'both') {
  1774. if ($progress < ($completed / ($total ? $total : 1))) {
  1775. $progress = number_format(($completed / ($total ? $total : 1)) * 100, 0);
  1776. }
  1777. return $progress . '% (' . $completed . '/' . $total . ')';
  1778. }
  1779. }
  1780. return $progress;
  1781. }
  1782. /**
  1783. * Returns the HTML necessary to print a mediaplayer block inside a page
  1784. * @return string The mediaplayer HTML
  1785. */
  1786. public function get_mediaplayer($autostart='true') {
  1787. global $_course;
  1788. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  1789. $tbl_lp_item_view = Database :: get_course_table(TABLE_LP_ITEM_VIEW);
  1790. $course_id = api_get_course_int_id();
  1791. // Getting all the information about the item.
  1792. $sql = "SELECT * FROM " . $tbl_lp_item . " as lp INNER JOIN " . $tbl_lp_item_view . " as lp_view on lp.id = lp_view.lp_item_id " .
  1793. "WHERE lp.id = '" . $_SESSION['oLP']->current . "' AND lp.c_id = $course_id AND lp_view.c_id = $course_id";
  1794. $result = Database::query($sql);
  1795. $row = Database::fetch_assoc($result);
  1796. $output = '';
  1797. if (!empty ($row['audio'])) {
  1798. $list = $_SESSION['oLP']->get_toc();
  1799. $type_quiz = false;
  1800. foreach($list as $toc) {
  1801. if ($toc['id'] == $_SESSION['oLP']->current && ($toc['type']=='quiz') ) {
  1802. $type_quiz = true;
  1803. }
  1804. }
  1805. if ($type_quiz) {
  1806. if ($_SESSION['oLP']->prevent_reinit == 1) {
  1807. $row['status'] === 'completed' ? $autostart_audio = 'false' : $autostart_audio = 'true';
  1808. } else {
  1809. $autostart_audio = $autostart;
  1810. }
  1811. } else {
  1812. $autostart_audio = 'true';
  1813. }
  1814. // The mp3 player.
  1815. $output = '<div id="container">';
  1816. $output .= '<script type="text/javascript" src="../inc/lib/mediaplayer/swfobject.js"></script>';
  1817. $output .= '<script type="text/javascript">
  1818. var s1 = new SWFObject("../inc/lib/mediaplayer/player.swf","ply","250","20","9","#FFFFFF");
  1819. s1.addParam("allowscriptaccess","always");
  1820. s1.addParam("flashvars","file=' . api_get_path(WEB_COURSE_PATH) . $_course['path'] . '/document/audio/' . $row['audio'] . '&autostart=' . $autostart_audio.'");
  1821. s1.write("container");
  1822. </script></div>';
  1823. }
  1824. return $output;
  1825. }
  1826. /**
  1827. * This function checks if the learnpath is visible for student after the progress of its prerequisite is completed, and considering time availability
  1828. * @param int Learnpath id
  1829. * @param int Student id
  1830. * @param string Course code (optional)
  1831. * @return bool True if
  1832. */
  1833. public function is_lp_visible_for_student($lp_id, $student_id, $course = null) {
  1834. $lp_id = (int)$lp_id;
  1835. $course = api_get_course_info($course);
  1836. $tbl_learnpath = Database :: get_course_table(TABLE_LP_MAIN,$course['dbName']);
  1837. // Get current prerequisite
  1838. $sql = "SELECT id, prerequisite, publicated_on, expired_on FROM $tbl_learnpath WHERE id = $lp_id";
  1839. $rs = Database::query($sql);
  1840. $now = time();
  1841. if (Database::num_rows($rs)>0) {
  1842. $row = Database::fetch_array($rs, 'ASSOC');
  1843. $prerequisite = $row['prerequisite'];
  1844. $is_visible = true;
  1845. $progress = 0;
  1846. if (!empty($prerequisite)) {
  1847. $progress = self::get_db_progress($prerequisite,$student_id,'%', '', false, api_get_session_id());
  1848. $progress = intval($progress);
  1849. if ($progress < 100) {
  1850. $is_visible = false;
  1851. }
  1852. }
  1853. // Also check the time availability of the LP
  1854. if ($is_visible) {
  1855. //Adding visibility reestrinctions
  1856. if (!empty($row['publicated_on']) && $row['publicated_on'] != '0000-00-00 00:00:00') {
  1857. if ($now < api_strtotime($row['publicated_on'], 'UTC')) {
  1858. //api_not_allowed();
  1859. $is_visible = false;
  1860. }
  1861. }
  1862. //Blocking empty start times see BT#2800
  1863. global $_custom;
  1864. if (isset($_custom['lps_hidden_when_no_start_date']) && $_custom['lps_hidden_when_no_start_date']) {
  1865. if (empty($row['publicated_on']) || $row['publicated_on'] == '0000-00-00 00:00:00') {
  1866. //api_not_allowed();
  1867. $is_visible = false;
  1868. }
  1869. }
  1870. if (!empty($row['expired_on']) && $row['expired_on'] != '0000-00-00 00:00:00') {
  1871. if ($now > api_strtotime($row['expired_on'], 'UTC')) {
  1872. //api_not_allowed();
  1873. $is_visible = false;
  1874. }
  1875. }
  1876. }
  1877. return $is_visible;
  1878. }
  1879. return false;
  1880. }
  1881. /**
  1882. * Gets a progress bar for the learnpath by counting the number of items in it and the number of items
  1883. * completed so far.
  1884. * @param string Mode in which we want the values
  1885. * @param integer Progress value to display (optional but mandatory if used in abstract context)
  1886. * @param string Text to display near the progress value (optional but mandatory in abstract context)
  1887. * @param boolean true if it comes from a Diplay LP view
  1888. * @return string HTML string containing the progress bar
  1889. */
  1890. public function get_progress_bar($mode = '', $percentage = -1, $text_add = '', $from_lp = false) {
  1891. //if ($this->debug > 0) {error_log('New LP - In learnpath::get_progress_bar('.$mode.','.$percentage.','.$text_add.','.$from_lp.')', 0); }
  1892. global $lp_theme_css;
  1893. // Setting up the CSS path of the current style if exists.
  1894. if (!empty ($lp_theme_css)) {
  1895. $css_path = api_get_path(WEB_CODE_PATH) . 'css/' . $lp_theme_css . '/images/';
  1896. } else {
  1897. $css_path = '../img/';
  1898. }
  1899. //if ($this->debug > 0) { error_log('New LP - In learnpath::get_progress_bar()', 0); }
  1900. if (isset($this) && is_object($this) && ($percentage == '-1' OR $text_add == '')) {
  1901. list($percentage, $text_add) = $this->get_progress_bar_text($mode);
  1902. }
  1903. $text = $percentage . $text_add;
  1904. // Default progress bar config
  1905. // times that will be greater or shorter
  1906. $factor = 1.2;
  1907. if ($from_lp)
  1908. $progress_height = '26';
  1909. else
  1910. $progress_height = '16';
  1911. $size = str_replace('%', '', $percentage);
  1912. $output ='<div style="width:135px">' .
  1913. '<img id="progress_img_limit_left" src="' . $css_path . 'bar_1.gif" width="1" height="' . $progress_height . '">' .
  1914. '<img id="progress_img_full" src="' . $css_path . 'bar_1u.gif" width="' . $size * $factor . 'px" height="' . $progress_height . '" id="full_portion">' .
  1915. '<img id="progress_img_limit_middle" src="' . $css_path . 'bar_1m.gif" width="1" height="' . $progress_height . '">';
  1916. if ($percentage <= 98) {
  1917. $output .= '<img id="progress_img_empty" src="' . $css_path . 'bar_1r.gif" width="' . (100 - $size) * $factor . 'px" height="' . $progress_height . '" id="empty_portion">';
  1918. } else {
  1919. $output .= '<img id="progress_img_empty" src="' . $css_path . 'bar_1r.gif" width="0" height="' . $progress_height . '" id="empty_portion">';
  1920. }
  1921. $output .= '<img id="progress_bar_img_limit_right" src="' . $css_path . 'bar_1.gif" width="1" height="' . $progress_height . '"></div>' .
  1922. '<div class="progresstext" id="progress_text">' . $text . '</div>';
  1923. return $output;
  1924. }
  1925. /**
  1926. * Gets the progress bar info to display inside the progress bar. Also used by scorm_api.php
  1927. * @param string Mode of display (can be '%' or 'abs').abs means we display a number of completed elements per total elements
  1928. * @param integer Additional steps to fake as completed
  1929. * @return list Percentage or number and symbol (% or /xx)
  1930. */
  1931. public function get_progress_bar_text($mode = '', $add = 0) {
  1932. if ($this->debug > 0) {
  1933. error_log('New LP - In learnpath::get_progress_bar_text()', 0);
  1934. }
  1935. if (empty ($mode)) {
  1936. $mode = $this->progress_bar_mode;
  1937. }
  1938. $total_items = $this->get_total_items_count_without_chapters();
  1939. if ($this->debug > 2) {
  1940. error_log('New LP - Total items available in this learnpath: ' . $total_items, 0);
  1941. }
  1942. $i = $this->get_complete_items_count();
  1943. if ($this->debug > 2) {
  1944. error_log('New LP - Items completed so far: ' . $i, 0);
  1945. }
  1946. if ($add != 0) {
  1947. $i += $add;
  1948. if ($this->debug > 2) {
  1949. error_log('New LP - Items completed so far (+modifier): ' . $i, 0);
  1950. }
  1951. }
  1952. $text = '';
  1953. if ($i > $total_items) {
  1954. $i = $total_items;
  1955. }
  1956. if ($mode == '%') {
  1957. if ($total_items > 0) {
  1958. $percentage = ((float) $i / (float) $total_items) * 100;
  1959. } else {
  1960. $percentage = 0;
  1961. }
  1962. $percentage = number_format($percentage, 0);
  1963. $text = '%';
  1964. }
  1965. elseif ($mode == 'abs') {
  1966. $percentage = $i;
  1967. $text = '/' . $total_items;
  1968. }
  1969. return array (
  1970. $percentage,
  1971. $text
  1972. );
  1973. }
  1974. /**
  1975. * Gets the progress bar mode
  1976. * @return string The progress bar mode attribute
  1977. */
  1978. public function get_progress_bar_mode() {
  1979. if ($this->debug > 0) {
  1980. error_log('New LP - In learnpath::get_progress_bar_mode()', 0);
  1981. }
  1982. if (!empty ($this->progress_bar_mode)) {
  1983. return $this->progress_bar_mode;
  1984. } else {
  1985. return '%';
  1986. }
  1987. }
  1988. /**
  1989. * Gets the learnpath proximity (remote or local)
  1990. * @return string Learnpath proximity
  1991. */
  1992. public function get_proximity() {
  1993. if ($this->debug > 0) {
  1994. error_log('New LP - In learnpath::get_proximity()', 0);
  1995. }
  1996. if (!empty ($this->proximity)) {
  1997. return $this->proximity;
  1998. } else {
  1999. return '';
  2000. }
  2001. }
  2002. /**
  2003. * Gets the learnpath theme (remote or local)
  2004. * @return string Learnpath theme
  2005. */
  2006. public function get_theme() {
  2007. if ($this->debug > 0) {
  2008. error_log('New LP - In learnpath::get_theme()', 0);
  2009. }
  2010. if (!empty ($this->theme)) {
  2011. return $this->theme;
  2012. } else {
  2013. return '';
  2014. }
  2015. }
  2016. /**
  2017. * Gets the learnpath session id
  2018. * @return string Learnpath theme
  2019. */
  2020. public function get_lp_session_id() {
  2021. if ($this->debug > 0) {
  2022. error_log('New LP - In learnpath::get_lp_session_id()', 0);
  2023. }
  2024. if (!empty ($this->lp_session_id)) {
  2025. return $this->lp_session_id;
  2026. } else {
  2027. return 0;
  2028. }
  2029. }
  2030. /**
  2031. * Gets the learnpath image
  2032. * @return string Web URL of the LP image
  2033. */
  2034. public function get_preview_image() {
  2035. if ($this->debug > 0) {
  2036. error_log('New LP - In learnpath::get_preview_image()', 0);
  2037. }
  2038. if (!empty ($this->preview_image)) {
  2039. return $this->preview_image;
  2040. } else {
  2041. return '';
  2042. }
  2043. }
  2044. /**
  2045. * Gets the learnpath author
  2046. * @return string LP's author
  2047. */
  2048. public function get_author() {
  2049. if ($this->debug > 0) {
  2050. error_log('New LP - In learnpath::get_author()', 0);
  2051. }
  2052. if (!empty ($this->author)) {
  2053. return $this->author;
  2054. } else {
  2055. return '';
  2056. }
  2057. }
  2058. /**
  2059. * Gets the learnpath author
  2060. * @return string LP's author
  2061. */
  2062. public function get_hide_toc_frame() {
  2063. if ($this->debug > 0) {
  2064. error_log('New LP - In learnpath::get_author()', 0);
  2065. }
  2066. if (!empty ($this->hide_toc_frame)) {
  2067. return $this->hide_toc_frame;
  2068. } else {
  2069. return '';
  2070. }
  2071. }
  2072. /**
  2073. * Generate a new prerequisites string for a given item. If this item was a sco and
  2074. * its prerequisites were strings (instead of IDs), then transform those strings into
  2075. * IDs, knowing that SCORM IDs are kept in the "ref" field of the lp_item table.
  2076. * Prefix all item IDs that end-up in the prerequisites string by "ITEM_" to use the
  2077. * same rule as the scorm_export() method
  2078. * @param integer Item ID
  2079. * @return string Prerequisites string ready for the export as SCORM
  2080. */
  2081. public function get_scorm_prereq_string($item_id) {
  2082. if ($this->debug > 0) {
  2083. error_log('New LP - In learnpath::get_scorm_prereq_string()', 0);
  2084. }
  2085. if (!is_object($this->items[$item_id])) {
  2086. return false;
  2087. }
  2088. $oItem = $this->items[$item_id];
  2089. $prereq = $oItem->get_prereq_string();
  2090. if (empty ($prereq)) {
  2091. return '';
  2092. }
  2093. if (preg_match('/^\d+$/', $prereq) && is_object($this->items[$prereq])) { // If the prerequisite is a simple integer ID and this ID exists as an item ID,
  2094. // then simply return it (with the ITEM_ prefix).
  2095. return 'ITEM_' . $prereq;
  2096. } else {
  2097. if (isset ($this->refs_list[$prereq])) {
  2098. // It's a simple string item from which the ID can be found in the refs list,
  2099. // so we can transform it directly to an ID for export.
  2100. return 'ITEM_' . $this->refs_list[$prereq];
  2101. } else {
  2102. // The last case, if it's a complex form, then find all the IDs (SCORM strings)
  2103. // and replace them, one by one, by the internal IDs (chamilo db)
  2104. // TODO: Modify the '*' replacement to replace the multiplier in front of it
  2105. // by a space as well.
  2106. $find = array (
  2107. '&',
  2108. '|',
  2109. '~',
  2110. '=',
  2111. '<>',
  2112. '{',
  2113. '}',
  2114. '*',
  2115. '(',
  2116. ')'
  2117. );
  2118. $replace = array (
  2119. ' ',
  2120. ' ',
  2121. ' ',
  2122. ' ',
  2123. ' ',
  2124. ' ',
  2125. ' ',
  2126. ' ',
  2127. ' ',
  2128. ' '
  2129. );
  2130. $prereq_mod = str_replace($find, $replace, $prereq);
  2131. $ids = split(' ', $prereq_mod);
  2132. foreach ($ids as $id) {
  2133. $id = trim($id);
  2134. if (isset ($this->refs_list[$id])) {
  2135. $prereq = preg_replace('/[^a-zA-Z_0-9](' . $id . ')[^a-zA-Z_0-9]/', 'ITEM_' . $this->refs_list[$id], $prereq);
  2136. }
  2137. }
  2138. error_log('New LP - In learnpath::get_scorm_prereq_string(): returning modified string: ' . $prereq, 0);
  2139. return $prereq;
  2140. }
  2141. }
  2142. }
  2143. /**
  2144. * Returns the XML DOM document's node
  2145. * @param resource Reference to a list of objects to search for the given ITEM_*
  2146. * @param string The identifier to look for
  2147. * @return mixed The reference to the element found with that identifier. False if not found
  2148. */
  2149. public function get_scorm_xml_node(& $children, $id) {
  2150. for ($i = 0; $i < $children->length; $i++) {
  2151. $item_temp = $children->item($i);
  2152. if ($item_temp->nodeName == 'item') {
  2153. if ($item_temp->getAttribute('identifier') == $id) {
  2154. return $item_temp;
  2155. }
  2156. }
  2157. $subchildren = $item_temp->childNodes;
  2158. if ($subchildren->length > 0) {
  2159. $val = $this->get_scorm_xml_node($subchildren, $id);
  2160. if (is_object($val)) {
  2161. return $val;
  2162. }
  2163. }
  2164. }
  2165. return false;
  2166. }
  2167. /**
  2168. * Returns a usable array of stats related to the current learnpath and user
  2169. * @return array Well-formatted array containing status for the current learnpath
  2170. */
  2171. public function get_stats() {
  2172. if ($this->debug > 0) {
  2173. error_log('New LP - In learnpath::get_stats()', 0);
  2174. }
  2175. // TODO
  2176. }
  2177. /**
  2178. * Static method. Can be re-implemented by children. Gives an array of statistics for
  2179. * the given course (for all learnpaths and all users)
  2180. * @param string Course code
  2181. * @return array Well-formatted array containing status for the course's learnpaths
  2182. */
  2183. public function get_stats_course($course) {
  2184. //if ($this->debug > 0) { error_log('New LP - In learnpath::get_stats_course()', 0); }
  2185. // TODO
  2186. }
  2187. /**
  2188. * Static method. Can be re-implemented by children. Gives an array of statistics for
  2189. * the given course and learnpath (for all users)
  2190. * @param string Course code
  2191. * @param integer Learnpath ID
  2192. * @return array Well-formatted array containing status for the specified learnpath
  2193. */
  2194. public function get_stats_lp($course, $lp) {
  2195. //if ($this->debug > 0) { error_log('New LP - In learnpath::get_stats_lp()', 0); }
  2196. // TODO
  2197. }
  2198. /**
  2199. * Static method. Can be re-implemented by children. Gives an array of statistics for
  2200. * the given course, learnpath and user.
  2201. * @param string Course code
  2202. * @param integer Learnpath ID
  2203. * @param integer User ID
  2204. * @return array Well-formatted array containing status for the specified learnpath and user
  2205. */
  2206. public function get_stats_lp_user($course, $lp, $user) {
  2207. //if ($this->debug > 0) { error_log('New LP - In learnpath::get_stats_lp_user()', 0); }
  2208. // TODO
  2209. }
  2210. /**
  2211. * Static method. Can be re-implemented by children. Gives an array of statistics for
  2212. * the given course and learnpath (for all users)
  2213. * @param string Course code
  2214. * @param integer User ID
  2215. * @return array Well-formatted array containing status for the user's learnpaths
  2216. */
  2217. public function get_stats_user($course, $user) {
  2218. //if ($this->debug > 0) { error_log('New LP - In learnpath::get_stats_user()', 0); }
  2219. // TODO
  2220. }
  2221. /**
  2222. * Gets the status list for all LP's items
  2223. * @return array Array of [index] => [item ID => current status]
  2224. */
  2225. public function get_items_status_list() {
  2226. if ($this->debug > 0) {
  2227. error_log('New LP - In learnpath::get_items_status_list()', 0);
  2228. }
  2229. $list = array ();
  2230. foreach ($this->ordered_items as $item_id) {
  2231. $list[] = array (
  2232. $item_id => $this->items[$item_id]->get_status()
  2233. );
  2234. }
  2235. return $list;
  2236. }
  2237. /**
  2238. * Return the number of interactions for the given learnpath Item View ID.
  2239. * This method can be used as static.
  2240. * @param integer Item View ID
  2241. * @return integer Number of interactions
  2242. */
  2243. public function get_interactions_count_from_db($lp_iv_id = 0, $course_code = null) {
  2244. if (empty ($lp_iv_id)) {
  2245. return -1;
  2246. }
  2247. $course_info = api_get_course_info($course_code);
  2248. $table = Database :: get_course_table(TABLE_LP_IV_INTERACTION, $course_info['db_name']);
  2249. $sql = "SELECT count(*) FROM $table WHERE lp_iv_id = $lp_iv_id";
  2250. $res = Database::query($sql);
  2251. $row = Database :: fetch_array($res);
  2252. $num = $row[0];
  2253. return $num;
  2254. }
  2255. /**
  2256. * Return the interactions as an array for the given lp_iv_id.
  2257. * This method can be used as static.
  2258. * @param integer Learnpath Item View ID
  2259. * @return array
  2260. * @todo Transcode labels instead of switching to HTML (which requires to know the encoding of the LP)
  2261. */
  2262. public function get_iv_interactions_array($lp_iv_id = 0) {
  2263. $list = array ();
  2264. $table = Database :: get_course_table(TABLE_LP_IV_INTERACTION);
  2265. $sql = "SELECT * FROM $table WHERE lp_iv_id = $lp_iv_id ORDER BY order_id ASC";
  2266. $res = Database::query($sql);
  2267. $num = Database :: num_rows($res);
  2268. if ($num > 0) {
  2269. $list[] = array (
  2270. 'order_id' => api_htmlentities(get_lang('Order'), ENT_QUOTES),
  2271. 'id' => api_htmlentities(get_lang('InteractionID'), ENT_QUOTES),
  2272. 'type' => api_htmlentities(get_lang('Type'), ENT_QUOTES),
  2273. 'time' => api_htmlentities(get_lang('TimeFinished'), ENT_QUOTES),
  2274. 'correct_responses' => api_htmlentities(get_lang('CorrectAnswers'), ENT_QUOTES),
  2275. 'student_response' => api_htmlentities(get_lang('StudentResponse'), ENT_QUOTES),
  2276. 'result' => api_htmlentities(get_lang('Result'), ENT_QUOTES),
  2277. 'latency' => api_htmlentities(get_lang('LatencyTimeSpent'), ENT_QUOTES)
  2278. );
  2279. while ($row = Database :: fetch_array($res)) {
  2280. $list[] = array (
  2281. 'order_id' => ($row['order_id'] + 1),
  2282. 'id' => urldecode($row['interaction_id']), //urldecode because they often have %2F or stuff like that
  2283. 'type' => $row['interaction_type'],
  2284. 'time' => $row['completion_time'],
  2285. //'correct_responses' => $row['correct_responses'],
  2286. 'correct_responses' => '', // Hide correct responses from students.
  2287. 'student_response' => $row['student_response'],
  2288. 'result' => $row['result'],
  2289. 'latency' => $row['latency']
  2290. );
  2291. }
  2292. }
  2293. return $list;
  2294. }
  2295. /**
  2296. * Return the number of objectives for the given learnpath Item View ID.
  2297. * This method can be used as static.
  2298. * @param integer Item View ID
  2299. * @return integer Number of objectives
  2300. */
  2301. public function get_objectives_count_from_db($lp_iv_id = 0, $course_code = null) {
  2302. if (empty ($lp_iv_id)) {
  2303. return -1;
  2304. }
  2305. $course_info = api_get_course_info($course_code);
  2306. $table = Database :: get_course_table(TABLE_LP_IV_OBJECTIVE, $course_info['db_name']);
  2307. $sql = "SELECT count(*) FROM $table WHERE lp_iv_id = $lp_iv_id";
  2308. $res = Database::query($sql);
  2309. $row = Database :: fetch_array($res);
  2310. $num = $row[0];
  2311. return $num;
  2312. }
  2313. /**
  2314. * Return the objectives as an array for the given lp_iv_id.
  2315. * This method can be used as static.
  2316. * @param integer Learnpath Item View ID
  2317. * @return array
  2318. * @todo Translate labels
  2319. */
  2320. public function get_iv_objectives_array($lp_iv_id = 0) {
  2321. $list = array();
  2322. $table = Database :: get_course_table(TABLE_LP_IV_OBJECTIVE);
  2323. $sql = "SELECT * FROM $table WHERE lp_iv_id = $lp_iv_id ORDER BY order_id ASC";
  2324. $res = Database::query($sql);
  2325. $num = Database :: num_rows($res);
  2326. if ($num > 0) {
  2327. $list[] = array (
  2328. 'order_id' => api_htmlentities(get_lang('Order'), ENT_QUOTES),
  2329. 'objective_id' => api_htmlentities(get_lang('ObjectiveID'), ENT_QUOTES),
  2330. 'score_raw' => api_htmlentities(get_lang('ObjectiveRawScore'), ENT_QUOTES),
  2331. 'score_max' => api_htmlentities(get_lang('ObjectiveMaxScore'), ENT_QUOTES),
  2332. 'score_min' => api_htmlentities(get_lang('ObjectiveMinScore'), ENT_QUOTES),
  2333. 'status' => api_htmlentities(get_lang('ObjectiveStatus'), ENT_QUOTES)
  2334. );
  2335. while ($row = Database :: fetch_array($res)) {
  2336. $list[] = array (
  2337. 'order_id' => ($row['order_id'] + 1),
  2338. 'objective_id' => urldecode($row['objective_id']), // urldecode() because they often have %2F or stuff like that.
  2339. 'score_raw' => $row['score_raw'],
  2340. 'score_max' => $row['score_max'],
  2341. 'score_min' => $row['score_min'],
  2342. 'status' => $row['status']
  2343. );
  2344. }
  2345. }
  2346. return $list;
  2347. }
  2348. /**
  2349. * Generate and return the table of contents for this learnpath. The (flat) table returned can be
  2350. * used by get_html_toc() to be ready to display
  2351. * @return array TOC as a table with 4 elements per row: title, link, status and level
  2352. */
  2353. public function get_toc() {
  2354. if ($this->debug > 0) {
  2355. error_log('New LP - In learnpath::get_toc()', 0);
  2356. }
  2357. $toc = array ();
  2358. //echo "<pre>".print_r($this->items,true)."</pre>";
  2359. foreach ($this->ordered_items as $item_id) {
  2360. if ($this->debug > 2) {
  2361. error_log('New LP - learnpath::get_toc(): getting info for item ' . $item_id, 0);
  2362. }
  2363. // TODO: Change this link generation and use new function instead.
  2364. $toc[] = array (
  2365. 'id' => $item_id,
  2366. 'title' => $this->items[$item_id]->get_title(),
  2367. //'link' => get_addedresource_link_in_learnpath('document', $item_id, 1),
  2368. 'status' => $this->items[$item_id]->get_status(),
  2369. 'level' => $this->items[$item_id]->get_level(),
  2370. 'type' => $this->items[$item_id]->get_type(),
  2371. 'description' => $this->items[$item_id]->get_description(),
  2372. 'path' => $this->items[$item_id]->get_path(),
  2373. );
  2374. }
  2375. if ($this->debug > 2) {
  2376. error_log('New LP - In learnpath::get_toc() - TOC array: ' . print_r($toc, true), 0);
  2377. }
  2378. return $toc;
  2379. }
  2380. /**
  2381. * Generate and return the table of contents for this learnpath. The JS
  2382. * table returned is used inside of scorm_api.php
  2383. * @return string A JS array vairiable construction
  2384. */
  2385. public function get_items_details_as_js($varname = 'olms.lms_item_types') {
  2386. if ($this->debug > 0) {
  2387. error_log('New LP - In learnpath::get_items_details_as_js()', 0);
  2388. }
  2389. $toc = $varname.' = new Array();';
  2390. //echo "<pre>".print_r($this->items,true)."</pre>";
  2391. foreach ($this->ordered_items as $item_id) {
  2392. if ($this->debug > 2) {
  2393. error_log('New LP - learnpath::get_items_details_as_js(): getting info for item ' . $item_id, 0);
  2394. }
  2395. $toc.= $varname."['i$item_id'] = '".$this->items[$item_id]->get_type()."';";
  2396. }
  2397. if ($this->debug > 2) {
  2398. error_log('New LP - In learnpath::get_items_details_as_js() - TOC array: ' . print_r($toc, true), 0);
  2399. }
  2400. return $toc;
  2401. }
  2402. /**
  2403. * Gets the learning path type
  2404. * @param boolean Return the name? If false, return the ID. Default is false.
  2405. * @return mixed Type ID or name, depending on the parameter
  2406. */
  2407. public function get_type($get_name = false) {
  2408. $res = false;
  2409. if ($this->debug > 0) {
  2410. error_log('New LP - In learnpath::get_type()', 0);
  2411. }
  2412. if (!empty ($this->type)) {
  2413. if ($get_name) {
  2414. // Get it from the lp_type table in main db.
  2415. } else {
  2416. $res = $this->type;
  2417. }
  2418. }
  2419. if ($this->debug > 2) {
  2420. error_log('New LP - In learnpath::get_type() - Returning ' . ($res ? $res : 'false'), 0);
  2421. }
  2422. return $res;
  2423. }
  2424. /**
  2425. * Gets the learning path type as static method
  2426. * @param boolean Return the name? If false, return the ID. Default is false.
  2427. * @return mixed Type ID or name, depending on the parameter
  2428. */
  2429. public function get_type_static($lp_id = 0) {
  2430. $tbl_lp = Database :: get_course_table(TABLE_LP_MAIN);
  2431. $sql = "SELECT lp_type FROM $tbl_lp WHERE id = '" . $lp_id . "'";
  2432. $res = Database::query($sql);
  2433. if ($res === false) {
  2434. return null;
  2435. }
  2436. if (Database :: num_rows($res) <= 0) {
  2437. return null;
  2438. }
  2439. $row = Database :: fetch_array($res);
  2440. return $row['lp_type'];
  2441. }
  2442. /**
  2443. * Gets a flat list of item IDs ordered for display (level by level ordered by order_display)
  2444. * This method can be used as abstract and is recursive
  2445. * @param integer Learnpath ID
  2446. * @param integer Parent ID of the items to look for
  2447. * @return mixed Ordered list of item IDs or false on error
  2448. */
  2449. public function get_flat_ordered_items_list($lp, $parent = 0, $course_db = '') {
  2450. //if ($this->debug > 0) { error_log('New LP - In learnpath::get_flat_ordered_items_list('.$lp.','.$parent.')', 0); }
  2451. $list = array();
  2452. if (empty ($lp)) {
  2453. return false;
  2454. }
  2455. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM, $course_db);
  2456. $sql = "SELECT * FROM $tbl_lp_item WHERE lp_id = $lp AND parent_item_id = $parent ORDER BY display_order";
  2457. $res = Database::query($sql);
  2458. while ($row = Database :: fetch_array($res)) {
  2459. $sublist = learnpath :: get_flat_ordered_items_list($lp, $row['id'], $course_db);
  2460. $list[] = $row['id'];
  2461. foreach ($sublist as $item) {
  2462. $list[] = $item;
  2463. }
  2464. }
  2465. return $list;
  2466. }
  2467. /**
  2468. * Uses the table generated by get_toc() and returns an HTML-formatted string ready to display
  2469. * @return string HTML TOC ready to display
  2470. */
  2471. public function get_html_toc() {
  2472. $is_allowed_to_edit = api_is_allowed_to_edit(null, true);
  2473. $charset = api_get_system_encoding();
  2474. $display_action_links_with_icons = false;
  2475. if ($this->debug > 0) {
  2476. error_log('New LP - In learnpath::get_html_toc()', 0);
  2477. }
  2478. $list = $this->get_toc();
  2479. //echo $this->current;
  2480. //$parent = $this->items[$this->current]->get_parent();
  2481. //if (empty($parent)) { $parent = $this->ordered_items[$this->items[$this->current]->get_previous_index()]; }
  2482. $html = '<div id="scorm_title" class="scorm_title"><div class="scorm_title_text">' . Security::remove_XSS($this->get_name()) . '</div></div>';
  2483. // Build, display.
  2484. if ($is_allowed_to_edit) {
  2485. $gradebook = Security :: remove_XSS($_GET['gradebook']);
  2486. if ($this->get_lp_session_id() == api_get_session_id()) {
  2487. $html .= '<div id="actions_lp" class="actions_lp">';
  2488. if ($display_action_links_with_icons) {
  2489. $html .= '<div style = "text-align:center;">';
  2490. $html .= "<a href='lp_controller.php?" . api_get_cidreq() . "&amp;action=build&amp;lp_id=" . $this->lp_id . "' target='_parent'>" . Display :: return_icon('build_learnpath.png', get_lang('Build'),'','32')."</a>";
  2491. $html .= "<a href='lp_controller.php?" . api_get_cidreq() . "&amp;action=admin_view&amp;lp_id=" . $this->lp_id . "' target='_parent'>" . Display :: return_icon('move_learnpath.png', get_lang('BasicOverview'),'','32')."</a>";
  2492. $html .= '<span>' . Display :: return_icon('view_remove_na.png', get_lang('Display'),'','32').'</span><br />';
  2493. $html .= '<a href="lp_controller.php?' . api_get_cidreq() . '">'. get_lang('ReturnToLPList') . '</a>';
  2494. $html .= '</div>';
  2495. } else {
  2496. $html .= '<div style = "text-align:center;">';
  2497. $html .= "<a href='lp_controller.php?" . api_get_cidreq() . "&amp;gradebook=$gradebook&amp;action=build&amp;lp_id=" . $this->lp_id . "' target='_parent'>" . get_lang('Build') . "</a>";
  2498. $html .= "<a href='lp_controller.php?" . api_get_cidreq() . "&amp;action=admin_view&amp;lp_id=" . $this->lp_id . "' target='_parent'>" . get_lang('BasicOverview') . "</a>";
  2499. $html .= '<span><b>' . get_lang('Display') . '</b></span><br />';
  2500. $html .= '<a href="lp_controller.php?' . api_get_cidreq() . '">'. get_lang('ReturnToLPList') . '</a>';
  2501. $html .= '</div>';
  2502. }
  2503. $html .= '</div>';
  2504. }
  2505. }
  2506. $html .= '<div id="inner_lp_toc" class="inner_lp_toc">';
  2507. require_once 'resourcelinker.inc.php';
  2508. // Temporary variables.
  2509. $mycurrentitemid = $this->get_current_item_id();
  2510. $color_counter = 0;
  2511. $i = 0;
  2512. foreach ($list as $item) {
  2513. if ($this->debug > 2) {
  2514. error_log('New LP - learnpath::get_html_toc(): using item ' . $item['id'], 0);
  2515. }
  2516. // TODO: Complete this.
  2517. $icon_name = array (
  2518. 'not attempted' => '../img/notattempted.gif',
  2519. 'incomplete' => '../img/incomplete.png',
  2520. 'failed' => '../img/delete.png',
  2521. 'completed' => '../img/completed.png',
  2522. 'passed' => '../img/passed.png',
  2523. 'succeeded' => '../img/succeeded.png',
  2524. 'browsed' => '../img/completed.png',
  2525. );
  2526. $style = 'scorm_item';
  2527. $scorm_color_background = 'scorm_item';
  2528. $style_item = 'scorm_item';
  2529. $current = false;
  2530. if ($item['id'] == $this->current) {
  2531. $style = 'scorm_item_highlight';
  2532. $scorm_color_background = 'scorm_item_highlight';
  2533. } else {
  2534. if ($color_counter % 2 == 0) {
  2535. $scorm_color_background = 'scorm_item_1';
  2536. } else {
  2537. $scorm_color_background = 'scorm_item_2';
  2538. }
  2539. if ($item['type'] == 'dokeos_module' || $item['type'] == 'dokeos_chapter') {
  2540. $scorm_color_background =' scorm_item_section ';
  2541. }
  2542. }
  2543. if ($scorm_color_background != '') {
  2544. $html .= '<div id="toc_' . $item['id'] . '" class="' . $scorm_color_background . '">';
  2545. }
  2546. // The anchor will let us center the TOC on the currently viewed item &^D
  2547. if ($item['type'] != 'dokeos_module' && $item['type'] != 'dokeos_chapter') {
  2548. $html .= '<a name="atoc_' . $item['id'] . '" />';
  2549. $html .= '<div class="' . $style_item . '" style="padding-left: ' . ($item['level'] * 1.5) . 'em; padding-right:' . ($item['level'] / 2) . 'em" title="' . $item['description'] . '" >';
  2550. } else {
  2551. $html .= '<div class="' . $style_item . '" style="padding-left: ' . ($item['level'] * 2) . 'em; padding-right:' . ($item['level'] * 1.5) . 'em" title="' . $item['description'] . '" >';
  2552. }
  2553. $title = $item['title'];
  2554. if (empty ($title)) {
  2555. $title = rl_get_resource_name(api_get_course_id(), $this->get_id(), $item['id']);
  2556. }
  2557. $title = Security::remove_XSS($title);
  2558. if ($item['type'] != 'dokeos_chapter' && $item['type'] != 'dir' && $item['type'] != 'dokeos_module') {
  2559. //$html .= "<a href='lp_controller.php?".api_get_cidreq()."&action=content&lp_id=".$this->get_id()."&item_id=".$item['id']."' target='lp_content_frame_name'>".$title."</a>" ;
  2560. $url = $this->get_link('http', $item['id']);
  2561. //$html .= '<a href="'.$url.'" target="content_name" onClick="top.load_item('.$item['id'].',\''.$url.'\');">'.$title.'</a>' ;
  2562. //$html .= '<a href="" onClick="top.load_item('.$item['id'].',\''.$url.'\');return false;">'.$title.'</a>' ;
  2563. //<img align="absbottom" width="13" height="13" src="../img/lp_document.png">&nbsp;background:#aaa;
  2564. $html .= '<a href="" onClick="switch_item(' .$mycurrentitemid . ',' .$item['id'] . ');' .'return false;" >' . stripslashes($title) . '</a>';
  2565. } elseif ($item['type'] == 'dokeos_module' || $item['type'] == 'dokeos_chapter') {
  2566. $html .= "<img align='absbottom' width='13' height='13' src='../img/lp_dokeos_module.png'>&nbsp;" . stripslashes($title);
  2567. } elseif ($item['type'] == 'dir') {
  2568. $html .= stripslashes($title);
  2569. }
  2570. $tbl_track_e_exercises = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
  2571. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  2572. $user_id = api_get_user_id();
  2573. $course_id = api_get_course_id();
  2574. $sql = "SELECT path FROM $tbl_track_e_exercises, $tbl_lp_item
  2575. WHERE path = '" . $item['path'] . "' AND exe_user_id = '$user_id' AND exe_cours_id = '$course_id' AND path = exe_exo_id AND status <> 'incomplete'";
  2576. $result = Database::query($sql);
  2577. $count = Database :: num_rows($result);
  2578. if ($item['type'] == 'quiz') {
  2579. if ($item['status'] == 'completed') {
  2580. $html .= "&nbsp;<img id='toc_img_" . $item['id'] . "' src='" . $icon_name[$item['status']] . "' alt='" . substr($item['status'], 0, 1) . "' width='14' />";
  2581. }
  2582. } else {
  2583. if ($item['type'] != 'dokeos_chapter' && $item['type'] != 'dokeos_module' && $item['type'] != 'dir') {
  2584. $html .= "&nbsp;<img id='toc_img_" . $item['id'] . "' src='" . $icon_name[$item['status']] . "' alt='" . substr($item['status'], 0, 1) . "' width='14' />";
  2585. }
  2586. }
  2587. $html .= "</div>";
  2588. if ($scorm_color_background != '') {
  2589. $html .= '</div>';
  2590. }
  2591. $color_counter++;
  2592. }
  2593. $html .= "</div>";
  2594. return $html;
  2595. }
  2596. /**
  2597. * Gets the learnpath maker name - generally the editor's name
  2598. * @return string Learnpath maker name
  2599. */
  2600. public function get_maker() {
  2601. if ($this->debug > 0) {
  2602. error_log('New LP - In learnpath::get_maker()', 0);
  2603. }
  2604. if (!empty ($this->maker)) {
  2605. return $this->maker;
  2606. } else {
  2607. return '';
  2608. }
  2609. }
  2610. /**
  2611. * Gets the user-friendly message stored in $this->message
  2612. * @return string Message
  2613. */
  2614. public function get_message() {
  2615. if ($this->debug > 0) {
  2616. error_log('New LP - In learnpath::get_message()', 0);
  2617. }
  2618. return $this->message;
  2619. }
  2620. /**
  2621. * Gets the learnpath name/title
  2622. * @return string Learnpath name/title
  2623. */
  2624. public function get_name() {
  2625. if ($this->debug > 0) {
  2626. error_log('New LP - In learnpath::get_name()', 0);
  2627. }
  2628. if (!empty ($this->name)) {
  2629. return $this->name;
  2630. } else {
  2631. return 'N/A';
  2632. }
  2633. }
  2634. /**
  2635. * Gets a link to the resource from the present location, depending on item ID.
  2636. * @param string Type of link expected
  2637. * @param integer Learnpath item ID
  2638. * @return string Link to the lp_item resource
  2639. */
  2640. public function get_link($type = 'http', $item_id = null) {
  2641. if ($this->debug > 0) {
  2642. error_log('New LP - In learnpath::get_link(' . $type . ',' . $item_id . ')', 0);
  2643. }
  2644. if (empty($item_id)) {
  2645. if ($this->debug > 2) {
  2646. error_log('New LP - In learnpath::get_link() - no item id given in learnpath::get_link(), using current: ' . $this->get_current_item_id(), 0);
  2647. }
  2648. $item_id = $this->get_current_item_id();
  2649. }
  2650. if (empty ($item_id)) {
  2651. if ($this->debug > 2) {
  2652. error_log('New LP - In learnpath::get_link() - no current item id found in learnpath object', 0);
  2653. }
  2654. //still empty, this means there was no item_id given and we are not in an object context or
  2655. //the object property is empty, return empty link
  2656. $item_id = $this->first();
  2657. return '';
  2658. }
  2659. $file = '';
  2660. $lp_table = Database::get_course_table(TABLE_LP_MAIN);
  2661. $lp_item_table = Database::get_course_table(TABLE_LP_ITEM);
  2662. $lp_item_view_table = Database::get_course_table(TABLE_LP_ITEM_VIEW);
  2663. $item_id = Database::escape_string($item_id);
  2664. $course_id = api_get_course_int_id();
  2665. $sel = "SELECT l.lp_type as ltype, l.path as lpath, li.item_type as litype, li.path as lipath, li.parameters as liparams
  2666. FROM $lp_table l, $lp_item_table li
  2667. WHERE l.c_id = $course_id AND
  2668. li.c_id = $course_id AND
  2669. li.id = $item_id AND
  2670. li.lp_id = l.id";
  2671. if ($this->debug > 2) {
  2672. error_log('New LP - In learnpath::get_link() - selecting item ' . $sel, 0);
  2673. }
  2674. $res = Database::query($sel);
  2675. if (Database :: num_rows($res) > 0) {
  2676. $row = Database :: fetch_array($res);
  2677. $lp_type = $row['ltype'];
  2678. $lp_path = $row['lpath'];
  2679. $lp_item_type = $row['litype'];
  2680. $lp_item_path = $row['lipath'];
  2681. $lp_item_params = $row['liparams'];
  2682. if (empty ($lp_item_params) && strpos($lp_item_path, '?') !== false) {
  2683. list ($lp_item_path, $lp_item_params) = explode('?', $lp_item_path);
  2684. }
  2685. //$lp_item_params = '?'.$lp_item_params;
  2686. //add ? if none - left commented to give freedom to scorm implementation
  2687. //if(substr($lp_item_params,0,1)!='?'){
  2688. // $lp_item_params = '?'.$lp_item_params;
  2689. //}
  2690. $sys_course_path = api_get_path(SYS_COURSE_PATH) . api_get_course_path();
  2691. if ($type == 'http') {
  2692. $course_path = api_get_path(WEB_COURSE_PATH) . api_get_course_path(); //web path
  2693. } else {
  2694. $course_path = $sys_course_path; //system path
  2695. }
  2696. // Fixed issue BT#1272 - If the item type is a Chamilo Item (quiz, link, etc), then change the lp type to thread it as a normal Chamilo LP not a SCO.
  2697. if (in_array($lp_item_type, array('quiz', 'document', 'link', 'forum', 'thread', 'student_publication'))) {
  2698. $lp_type = 1;
  2699. }
  2700. // Now go through the specific cases to get the end of the path.
  2701. // @todo Use constants instead of int values.
  2702. switch ($lp_type) {
  2703. case 1 :
  2704. if ($lp_item_type == 'dokeos_chapter') {
  2705. $file = 'lp_content.php?type=dir';
  2706. } else {
  2707. require_once 'resourcelinker.inc.php';
  2708. $file = rl_get_resource_link_for_learnpath(api_get_course_id(), $this->get_id(), $item_id);
  2709. if ($lp_item_type == 'link') {
  2710. require_once api_get_path(LIBRARY_PATH).'link.lib.php';
  2711. if (is_youtube_link($file)) {
  2712. $src = get_youtube_video_id($file);
  2713. $file = 'embed.php?type=youtube&src='.$src;
  2714. }
  2715. } else {
  2716. // check how much attempts of a exercise exits in lp
  2717. $lp_item_id = $this->get_current_item_id();
  2718. $lp_view_id = $this->get_view_id();
  2719. $prevent_reinit = $this->items[$this->current]->get_prevent_reinit();
  2720. $list = $this->get_toc();
  2721. $type_quiz = false;
  2722. foreach ($list as $toc) {
  2723. if ($toc['id'] == $lp_item_id && ($toc['type'] == 'quiz')) {
  2724. $type_quiz = true;
  2725. }
  2726. }
  2727. if ($type_quiz) {
  2728. $lp_item_id = Database :: escape_string($lp_item_id);
  2729. $lp_view_id = Database :: escape_string($lp_view_id);
  2730. $sql = "SELECT count(*) FROM $lp_item_view_table WHERE lp_item_id='" . (int) $lp_item_id . "' AND lp_view_id ='" . (int) $lp_view_id . "' AND status='completed'";
  2731. $result = Database::query($sql);
  2732. $row_count = Database :: fetch_row($result);
  2733. $count_item_view = (int) $row_count[0];
  2734. $not_multiple_attempt = 0;
  2735. if ($prevent_reinit === 1 && $count_item_view > 0) {
  2736. $not_multiple_attempt = 1;
  2737. }
  2738. $file .= '&not_multiple_attempt=' . $not_multiple_attempt;
  2739. }
  2740. $tmp_array = explode('/', $file);
  2741. $document_name = $tmp_array[count($tmp_array) - 1];
  2742. if (strpos($document_name, '_DELETED_')) {
  2743. $file = 'blank.php?error=document_deleted';
  2744. }
  2745. }
  2746. }
  2747. break;
  2748. case 2 :
  2749. if ($this->debug > 2) {
  2750. error_log('New LP - In learnpath::get_link() ' . __LINE__ . ' - Item type: ' . $lp_item_type, 0);
  2751. }
  2752. if ($lp_item_type != 'dir') {
  2753. // Quite complex here:
  2754. // We want to make sure 'http://' (and similar) links can
  2755. // be loaded as is (withouth the Chamilo path in front) but
  2756. // some contents use this form: resource.htm?resource=http://blablabla
  2757. // which means we have to find a protocol at the path's start, otherwise
  2758. // it should not be considered as an external URL.
  2759. //if ($this->prerequisites_match($item_id)) {
  2760. if (preg_match('#^[a-zA-Z]{2,5}://#', $lp_item_path) != 0) {
  2761. if ($this->debug > 2) {
  2762. error_log('New LP - In learnpath::get_link() ' . __LINE__ . ' - Found match for protocol in ' . $lp_item_path, 0);
  2763. }
  2764. // Distant url, return as is.
  2765. $file = $lp_item_path;
  2766. } else {
  2767. if ($this->debug > 2) {
  2768. error_log('New LP - In learnpath::get_link() ' . __LINE__ . ' - No starting protocol in ' . $lp_item_path, 0);
  2769. }
  2770. // Prevent getting untranslatable urls.
  2771. $lp_item_path = preg_replace('/%2F/', '/', $lp_item_path);
  2772. $lp_item_path = preg_replace('/%3A/', ':', $lp_item_path);
  2773. // Prepare the path.
  2774. $file = $course_path . '/scorm/' . $lp_path . '/' . $lp_item_path;
  2775. // TODO: Fix this for urls with protocol header.
  2776. $file = str_replace('//', '/', $file);
  2777. $file = str_replace(':/', '://', $file);
  2778. if (substr($lp_path, -1) == '/') {
  2779. $lp_path = substr($lp_path, 0, -1);
  2780. }
  2781. if (!is_file(realpath($sys_course_path . '/scorm/' . $lp_path . '/' . $lp_item_path))) {
  2782. // if file not found.
  2783. $decoded = html_entity_decode($lp_item_path);
  2784. list ($decoded) = explode('?', $decoded);
  2785. if (!is_file(realpath($sys_course_path . '/scorm/' . $lp_path . '/' . $decoded))) {
  2786. require_once 'resourcelinker.inc.php';
  2787. $file = rl_get_resource_link_for_learnpath(api_get_course_id(), $this->get_id(), $item_id);
  2788. if (empty($file)) {
  2789. $file = 'blank.php?error=document_not_found';
  2790. } else {
  2791. $tmp_array = explode('/', $file);
  2792. $document_name = $tmp_array[count($tmp_array) - 1];
  2793. if (strpos($document_name, '_DELETED_')) {
  2794. $file = 'blank.php?error=document_deleted';
  2795. } else {
  2796. $file = 'blank.php?error=document_not_found';
  2797. }
  2798. }
  2799. } else {
  2800. $file = $course_path . '/scorm/' . $lp_path . '/' . $decoded;
  2801. }
  2802. }
  2803. }
  2804. //}else{
  2805. //prerequisites did not match
  2806. //$file = 'blank.php';
  2807. //}
  2808. // We want to use parameters if they were defined in the imsmanifest.
  2809. if ($file != 'blank.php') {
  2810. $file .= (strstr($file, '?') === false ? '?' : '') . $lp_item_params;
  2811. }
  2812. } else {
  2813. $file = 'lp_content.php?type=dir';
  2814. }
  2815. break;
  2816. case 3 :
  2817. if ($this->debug > 2) {
  2818. error_log('New LP - In learnpath::get_link() ' . __LINE__ . ' - Item type: ' . $lp_item_type, 0);
  2819. }
  2820. // Formatting AICC HACP append URL.
  2821. $aicc_append = '?aicc_sid=' . urlencode(session_id()) . '&aicc_url=' . urlencode(api_get_path(WEB_CODE_PATH) . 'newscorm/aicc_hacp.php') . '&';
  2822. if ($lp_item_type != 'dir') {
  2823. // Quite complex here:
  2824. // We want to make sure 'http://' (and similar) links can
  2825. // be loaded as is (withouth the Chamilo path in front) but
  2826. // some contents use this form: resource.htm?resource=http://blablabla
  2827. // which means we have to find a protocol at the path's start, otherwise
  2828. // it should not be considered as an external URL.
  2829. if (preg_match('#^[a-zA-Z]{2,5}://#', $lp_item_path) != 0) {
  2830. if ($this->debug > 2) {
  2831. error_log('New LP - In learnpath::get_link() ' . __LINE__ . ' - Found match for protocol in ' . $lp_item_path, 0);
  2832. }
  2833. // Distant url, return as is.
  2834. $file = $lp_item_path;
  2835. // Enabled and modified by Ivan Tcholakov, 16-OCT-2008.
  2836. /*
  2837. if (stristr($file,'<servername>') !== false) {
  2838. $file = str_replace('<servername>', $course_path.'/scorm/'.$lp_path.'/', $lp_item_path);
  2839. }
  2840. */
  2841. if (stripos($file, '<servername>') !== false) {
  2842. //$file = str_replace('<servername>',$course_path.'/scorm/'.$lp_path.'/',$lp_item_path);
  2843. $web_course_path = str_replace('https://', '', str_replace('http://', '', $course_path));
  2844. $file = str_replace('<servername>', $web_course_path . '/scorm/' . $lp_path, $lp_item_path);
  2845. }
  2846. //
  2847. $file .= $aicc_append;
  2848. } else {
  2849. if ($this->debug > 2) {
  2850. error_log('New LP - In learnpath::get_link() ' . __LINE__ . ' - No starting protocol in ' . $lp_item_path, 0);
  2851. }
  2852. // Prevent getting untranslatable urls.
  2853. $lp_item_path = preg_replace('/%2F/', '/', $lp_item_path);
  2854. $lp_item_path = preg_replace('/%3A/', ':', $lp_item_path);
  2855. // Prepare the path - lp_path might be unusable because it includes the "aicc" subdir name.
  2856. $file = $course_path . '/scorm/' . $lp_path . '/' . $lp_item_path;
  2857. // TODO: Fix this for urls with protocol header.
  2858. $file = str_replace('//', '/', $file);
  2859. $file = str_replace(':/', '://', $file);
  2860. $file .= $aicc_append;
  2861. }
  2862. } else {
  2863. $file = 'lp_content.php?type=dir';
  2864. }
  2865. break;
  2866. case 4 :
  2867. break;
  2868. default :
  2869. break;
  2870. }
  2871. }
  2872. if ($this->debug > 2) {
  2873. error_log('New LP - In learnpath::get_link() - returning "' . $file . '" from get_link', 0);
  2874. }
  2875. return $file;
  2876. }
  2877. /**
  2878. * Gets the latest usable view or generate a new one
  2879. * @param integer Optional attempt number. If none given, takes the highest from the lp_view table
  2880. * @return integer DB lp_view id
  2881. */
  2882. public function get_view($attempt_num = 0) {
  2883. if ($this->debug > 0) {
  2884. error_log('New LP - In learnpath::get_view()', 0);
  2885. }
  2886. $search = '';
  2887. // Use $attempt_num to enable multi-views management (disabled so far).
  2888. if ($attempt_num != 0 AND intval(strval($attempt_num)) == $attempt_num) {
  2889. $search = 'AND view_count = ' . $attempt_num;
  2890. }
  2891. // When missing $attempt_num, search for a unique lp_view record for this lp and user.
  2892. $lp_view_table = Database :: get_course_table(TABLE_LP_VIEW);
  2893. $course_id = api_get_course_int_id();
  2894. $sql = "SELECT id, view_count FROM $lp_view_table
  2895. WHERE lp_id = " . $this->get_id() ." AND user_id = " . $this->get_user_id() . " " .$search .
  2896. " ORDER BY view_count DESC";
  2897. $res = Database::query($sql);
  2898. if (Database :: num_rows($res) > 0) {
  2899. $row = Database :: fetch_array($res);
  2900. $this->lp_view_id = $row['id'];
  2901. } else {
  2902. // There is no database record, create one.
  2903. $sql = "INSERT INTO $lp_view_table (c_id, lp_id,user_id,view_count) VALUES
  2904. ($course_id, " . $this->get_id() . "," . $this->get_user_id() . ",1)";
  2905. $res = Database::query($sql);
  2906. $id = Database :: insert_id();
  2907. $this->lp_view_id = $id;
  2908. }
  2909. return $this->lp_view_id;
  2910. }
  2911. /**
  2912. * Gets the current view id
  2913. * @return integer View ID (from lp_view)
  2914. */
  2915. public function get_view_id() {
  2916. if ($this->debug > 0) {
  2917. error_log('New LP - In learnpath::get_view_id()', 0);
  2918. }
  2919. if (!empty ($this->lp_view_id)) {
  2920. return $this->lp_view_id;
  2921. } else {
  2922. return 0;
  2923. }
  2924. }
  2925. /**
  2926. * Gets the update queue
  2927. * @return array Array containing IDs of items to be updated by JavaScript
  2928. */
  2929. public function get_update_queue() {
  2930. if ($this->debug > 0) {
  2931. error_log('New LP - In learnpath::get_update_queue()', 0);
  2932. }
  2933. return $this->update_queue;
  2934. }
  2935. /**
  2936. * Gets the user ID
  2937. * @return integer User ID
  2938. */
  2939. public function get_user_id() {
  2940. if ($this->debug > 0) {
  2941. error_log('New LP - In learnpath::get_user_id()', 0);
  2942. }
  2943. if (!empty ($this->user_id)) {
  2944. return $this->user_id;
  2945. } else {
  2946. return false;
  2947. }
  2948. }
  2949. /**
  2950. * Checks if any of the items has an audio element attached
  2951. * @return bool True or false
  2952. */
  2953. public function has_audio() {
  2954. if ($this->debug > 1) {
  2955. error_log('New LP - In learnpath::has_audio()', 0);
  2956. }
  2957. $has = false;
  2958. foreach ($this->items as $i => $item) {
  2959. if (!empty ($this->items[$i]->audio)) {
  2960. $has = true;
  2961. break;
  2962. }
  2963. }
  2964. return $has;
  2965. }
  2966. /**
  2967. * Logs a message into a file
  2968. * @param string Message to log
  2969. * @return boolean True on success, false on error or if msg empty
  2970. */
  2971. public function log($msg) {
  2972. if ($this->debug > 0) {
  2973. error_log('New LP - In learnpath::log()', 0);
  2974. }
  2975. // TODO
  2976. $this->error .= $msg;
  2977. return true;
  2978. }
  2979. /**
  2980. * Moves an item up and down at its level
  2981. * @param integer Item to move up and down
  2982. * @param string Direction 'up' or 'down'
  2983. * @return integer New display order, or false on error
  2984. */
  2985. public function move_item($id, $direction) {
  2986. if ($this->debug > 0) {
  2987. error_log('New LP - In learnpath::move_item(' . $id . ',' . $direction . ')', 0);
  2988. }
  2989. if (empty ($id) or empty ($direction)) {
  2990. return false;
  2991. }
  2992. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  2993. $sql_sel = "
  2994. SELECT *
  2995. FROM " . $tbl_lp_item . "
  2996. WHERE id = " . $id;
  2997. $res_sel = Database::query($sql_sel);
  2998. // Check if elem exists.
  2999. if (Database :: num_rows($res_sel) < 1) {
  3000. return false;
  3001. }
  3002. // Gather data.
  3003. $row = Database :: fetch_array($res_sel);
  3004. $previous = $row['previous_item_id'];
  3005. $next = $row['next_item_id'];
  3006. $display = $row['display_order'];
  3007. $parent = $row['parent_item_id'];
  3008. $lp = $row['lp_id'];
  3009. // Update the item (switch with previous/next one).
  3010. switch ($direction) {
  3011. case 'up' :
  3012. if ($this->debug > 2) {
  3013. error_log('Movement up detected', 0);
  3014. }
  3015. if ($display <= 1) { /*do nothing*/
  3016. } else {
  3017. $sql_sel2 = "SELECT *
  3018. FROM $tbl_lp_item
  3019. WHERE id = $previous";
  3020. if ($this->debug > 2) {
  3021. error_log('Selecting previous: ' . $sql_sel2, 0);
  3022. }
  3023. $res_sel2 = Database::query($sql_sel2);
  3024. if (Database :: num_rows($res_sel2) < 1) {
  3025. $previous_previous = 0;
  3026. }
  3027. // Gather data.
  3028. $row2 = Database :: fetch_array($res_sel2);
  3029. $previous_previous = $row2['previous_item_id'];
  3030. // Update previous_previous item (switch "next" with current).
  3031. if ($previous_previous != 0) {
  3032. $sql_upd2 = "UPDATE $tbl_lp_item SET next_item_id = $id WHERE id = $previous_previous";
  3033. if ($this->debug > 2) {
  3034. error_log($sql_upd2, 0);
  3035. }
  3036. $res_upd2 = Database::query($sql_upd2);
  3037. }
  3038. // Update previous item (switch with current).
  3039. if ($previous != 0) {
  3040. $sql_upd2 = "UPDATE $tbl_lp_item SET next_item_id = $next, previous_item_id = $id, display_order = display_order +1 WHERE id = $previous";
  3041. if ($this->debug > 2) {
  3042. error_log($sql_upd2, 0);
  3043. }
  3044. $res_upd2 = Database::query($sql_upd2);
  3045. }
  3046. // Update current item (switch with previous).
  3047. if ($id != 0) {
  3048. $sql_upd2 = "UPDATE $tbl_lp_item SET next_item_id = $previous, previous_item_id = $previous_previous, display_order = display_order-1 WHERE id = $id";
  3049. if ($this->debug > 2) {
  3050. error_log($sql_upd2, 0);
  3051. }
  3052. $res_upd2 = Database::query($sql_upd2);
  3053. }
  3054. // Update next item (new previous item).
  3055. if ($next != 0) {
  3056. $sql_upd2 = "UPDATE $tbl_lp_item SET previous_item_id = $previous WHERE id = $next";
  3057. if ($this->debug > 2) {
  3058. error_log($sql_upd2, 0);
  3059. }
  3060. $res_upd2 = Database::query($sql_upd2);
  3061. }
  3062. $display = $display -1;
  3063. }
  3064. break;
  3065. case 'down' :
  3066. if ($this->debug > 2) {
  3067. error_log('Movement down detected', 0);
  3068. }
  3069. if ($next == 0) { /* Do nothing. */
  3070. } else {
  3071. $sql_sel2 = "SELECT * FROM $tbl_lp_item WHERE id = $next";
  3072. if ($this->debug > 2) {
  3073. error_log('Selecting next: ' . $sql_sel2, 0);
  3074. }
  3075. $res_sel2 = Database::query($sql_sel2);
  3076. if (Database :: num_rows($res_sel2) < 1) {
  3077. $next_next = 0;
  3078. }
  3079. // Gather data.
  3080. $row2 = Database :: fetch_array($res_sel2);
  3081. $next_next = $row2['next_item_id'];
  3082. // Update previous item (switch with current).
  3083. if ($previous != 0) {
  3084. $sql_upd2 = "UPDATE $tbl_lp_item SET next_item_id = $next WHERE id = $previous";
  3085. $res_upd2 = Database::query($sql_upd2);
  3086. }
  3087. // Update current item (switch with previous).
  3088. if ($id != 0) {
  3089. $sql_upd2 = "UPDATE $tbl_lp_item SET previous_item_id = $next, next_item_id = $next_next, display_order = display_order+1 WHERE id = $id";
  3090. $res_upd2 = Database::query($sql_upd2);
  3091. }
  3092. // Update next item (new previous item).
  3093. if ($next != 0) {
  3094. $sql_upd2 = "UPDATE $tbl_lp_item SET previous_item_id = $previous, next_item_id = $id, display_order = display_order-1 WHERE id = $next";
  3095. $res_upd2 = Database::query($sql_upd2);
  3096. }
  3097. // Update next_next item (switch "previous" with current).
  3098. if ($next_next != 0) {
  3099. $sql_upd2 = "UPDATE $tbl_lp_item SET previous_item_id = $id WHERE id = $next_next";
  3100. $res_upd2 = Database::query($sql_upd2);
  3101. }
  3102. $display = $display +1;
  3103. }
  3104. break;
  3105. default :
  3106. return false;
  3107. }
  3108. return $display;
  3109. }
  3110. /**
  3111. * Move a learnpath up (display_order)
  3112. * @param integer Learnpath ID
  3113. */
  3114. public function move_up($lp_id) {
  3115. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  3116. $sql = "SELECT * FROM $lp_table ORDER BY display_order";
  3117. $res = Database::query($sql);
  3118. if ($res === false)
  3119. return false;
  3120. $lps = array ();
  3121. $lp_order = array ();
  3122. $num = Database :: num_rows($res);
  3123. // First check the order is correct, globally (might be wrong because
  3124. // of versions < 1.8.4)
  3125. if ($num > 0) {
  3126. $i = 1;
  3127. while ($row = Database :: fetch_array($res)) {
  3128. if ($row['display_order'] != $i) { // If we find a gap in the order, we need to fix it.
  3129. $need_fix = true;
  3130. $sql_u = "UPDATE $lp_table SET display_order = $i WHERE id = " . $row['id'];
  3131. $res_u = Database::query($sql_u);
  3132. }
  3133. $row['display_order'] = $i;
  3134. $lps[$row['id']] = $row;
  3135. $lp_order[$i] = $row['id'];
  3136. $i++;
  3137. }
  3138. }
  3139. if ($num > 1) { // If there's only one element, no need to sort.
  3140. $order = $lps[$lp_id]['display_order'];
  3141. if ($order > 1) { // If it's the first element, no need to move up.
  3142. $sql_u1 = "UPDATE $lp_table SET display_order = $order WHERE id = " . $lp_order[$order - 1];
  3143. $res_u1 = Database::query($sql_u1);
  3144. $sql_u2 = "UPDATE $lp_table SET display_order = " . ($order - 1) . " WHERE id = " . $lp_id;
  3145. $res_u2 = Database::query($sql_u2);
  3146. }
  3147. }
  3148. }
  3149. /**
  3150. * Move a learnpath down (display_order)
  3151. * @param integer Learnpath ID
  3152. */
  3153. public function move_down($lp_id) {
  3154. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  3155. $sql = "SELECT * FROM $lp_table ORDER BY display_order";
  3156. $res = Database::query($sql);
  3157. if ($res === false)
  3158. return false;
  3159. $lps = array ();
  3160. $lp_order = array ();
  3161. $num = Database :: num_rows($res);
  3162. $max = 0;
  3163. // First check the order is correct, globally (might be wrong because
  3164. // of versions < 1.8.4).
  3165. if ($num > 0) {
  3166. $i = 1;
  3167. while ($row = Database :: fetch_array($res)) {
  3168. $max = $i;
  3169. if ($row['display_order'] != $i) { // If we find a gap in the order, we need to fix it.
  3170. $need_fix = true;
  3171. $sql_u = "UPDATE $lp_table SET display_order = $i WHERE id = " . $row['id'];
  3172. $res_u = Database::query($sql_u);
  3173. }
  3174. $row['display_order'] = $i;
  3175. $lps[$row['id']] = $row;
  3176. $lp_order[$i] = $row['id'];
  3177. $i++;
  3178. }
  3179. }
  3180. if ($num > 1) { // If there's only one element, no need to sort.
  3181. $order = $lps[$lp_id]['display_order'];
  3182. if ($order < $max) { // If it's the first element, no need to move up.
  3183. $sql_u1 = "UPDATE $lp_table SET display_order = $order WHERE id = " . $lp_order[$order + 1];
  3184. $res_u1 = Database::query($sql_u1);
  3185. $sql_u2 = "UPDATE $lp_table SET display_order = " . ($order + 1) . " WHERE id = " . $lp_id;
  3186. $res_u2 = Database::query($sql_u2);
  3187. }
  3188. }
  3189. }
  3190. /**
  3191. * Updates learnpath attributes to point to the next element
  3192. * The last part is similar to set_current_item but processing the other way around
  3193. */
  3194. public function next() {
  3195. if ($this->debug > 0) {
  3196. error_log('New LP - In learnpath::next()', 0);
  3197. }
  3198. $this->last = $this->get_current_item_id();
  3199. $this->items[$this->last]->save(false, $this->prerequisites_match($this->last));
  3200. $this->autocomplete_parents($this->last);
  3201. $new_index = $this->get_next_index();
  3202. if ($this->debug > 2) {
  3203. error_log('New LP - New index: ' . $new_index, 0);
  3204. }
  3205. $this->index = $new_index;
  3206. if ($this->debug > 2) {
  3207. error_log('New LP - Now having orderedlist[' . $new_index . '] = ' . $this->ordered_items[$new_index], 0);
  3208. }
  3209. $this->current = $this->ordered_items[$new_index];
  3210. if ($this->debug > 2) {
  3211. error_log('New LP - new item id is ' . $this->current . '-' . $this->get_current_item_id(), 0);
  3212. }
  3213. }
  3214. /**
  3215. * Open a resource = initialise all local variables relative to this resource. Depending on the child
  3216. * class, this might be redefined to allow several behaviours depending on the document type.
  3217. * @param integer Resource ID
  3218. * @return boolean True on success, false otherwise
  3219. */
  3220. public function open($id) {
  3221. if ($this->debug > 0) {
  3222. error_log('New LP - In learnpath::open()', 0);
  3223. }
  3224. // TODO:
  3225. // set the current resource attribute to this resource
  3226. // switch on element type (redefine in child class?)
  3227. // set status for this item to "opened"
  3228. // start timer
  3229. // initialise score
  3230. $this->index = 0; //or = the last item seen (see $this->last)
  3231. }
  3232. /**
  3233. * Check that all prerequisites are fulfilled. Returns true and an empty string on succes, returns false
  3234. * and the prerequisite string on error.
  3235. * This function is based on the rules for aicc_script language as described in the SCORM 1.2 CAM documentation page 108.
  3236. * @param integer Optional item ID. If none given, uses the current open item.
  3237. * @return boolean True if prerequisites are matched, false otherwise - Empty string if true returned, prerequisites string otherwise.
  3238. */
  3239. public function prerequisites_match($item = null) {
  3240. if ($this->debug > 0) {
  3241. error_log('New LP - In learnpath::prerequisites_match()', 0);
  3242. }
  3243. if (empty ($item)) {
  3244. $item = $this->current;
  3245. }
  3246. if (is_object($this->items[$item])) {
  3247. $prereq_string = $this->items[$item]->get_prereq_string();
  3248. if (empty ($prereq_string)) {
  3249. return true;
  3250. }
  3251. // Clean spaces.
  3252. $prereq_string = str_replace(' ', '', $prereq_string);
  3253. if ($this->debug > 0) {
  3254. error_log('Found prereq_string: ' . $prereq_string, 0);
  3255. }
  3256. // Now send to the parse_prereq() function that will check this component's prerequisites.
  3257. $result = $this->items[$item]->parse_prereq($prereq_string, $this->items, $this->refs_list, $this->get_user_id());
  3258. if ($result === false) {
  3259. $this->set_error_msg($this->items[$item]->prereq_alert);
  3260. }
  3261. } else {
  3262. $result = true;
  3263. if ($this->debug > 1) {
  3264. error_log('New LP - $this->items[' . $item . '] was not an object', 0);
  3265. }
  3266. }
  3267. if ($this->debug > 1) {
  3268. error_log('New LP - End of prerequisites_match(). Error message is now ' . $this->error, 0);
  3269. }
  3270. return $result;
  3271. }
  3272. /**
  3273. * Updates learnpath attributes to point to the previous element
  3274. * The last part is similar to set_current_item but processing the other way around
  3275. */
  3276. public function previous() {
  3277. if ($this->debug > 0) {
  3278. error_log('New LP - In learnpath::previous()', 0);
  3279. }
  3280. $this->last = $this->get_current_item_id();
  3281. $this->items[$this->last]->save(false, $this->prerequisites_match($this->last));
  3282. $this->autocomplete_parents($this->last);
  3283. $new_index = $this->get_previous_index();
  3284. $this->index = $new_index;
  3285. $this->current = $this->ordered_items[$new_index];
  3286. }
  3287. /**
  3288. * Publishes a learnpath. This basically means show or hide the learnpath
  3289. * to normal users.
  3290. * Can be used as abstract
  3291. * @param integer Learnpath ID
  3292. * @param string New visibility
  3293. */
  3294. public function toggle_visibility($lp_id, $set_visibility = 1) {
  3295. //if ($this->debug > 0) { error_log('New LP - In learnpath::toggle_visibility()', 0); }
  3296. $action = 'visible';
  3297. if ($set_visibility != 1) {
  3298. $action = 'invisible';
  3299. }
  3300. return api_item_property_update(api_get_course_info(), TOOL_LEARNPATH, $lp_id, $action, api_get_user_id());
  3301. }
  3302. /**
  3303. * Publishes a learnpath. This basically means show or hide the learnpath
  3304. * on the course homepage
  3305. * Can be used as abstract
  3306. * @param integer Learnpath id
  3307. * @param string New visibility (v/s - visible/invisible)
  3308. */
  3309. public function toggle_publish($lp_id, $set_visibility = 'v') {
  3310. //if ($this->debug > 0) { error_log('New LP - In learnpath::toggle_publish()', 0); }
  3311. $tbl_lp = Database :: get_course_table(TABLE_LP_MAIN);
  3312. $sql = "SELECT * FROM $tbl_lp where id=$lp_id";
  3313. $result = Database::query($sql);
  3314. $row = Database :: fetch_array($result);
  3315. $name = domesticate($row['name']);
  3316. if ($set_visibility == 'i') {
  3317. $s = $name . " " . get_lang('_no_published');
  3318. $dialogBox = $s;
  3319. $v = 0;
  3320. }
  3321. if ($set_visibility == 'v') {
  3322. $s = $name . " " . get_lang('_published');
  3323. $dialogBox = $s;
  3324. $v = 1;
  3325. }
  3326. $session_id = api_get_session_id();
  3327. $session_condition = api_get_session_condition($session_id);
  3328. $tbl_tool = Database :: get_course_table(TABLE_TOOL_LIST);
  3329. $course_id = api_get_course_int_id();
  3330. $link = 'newscorm/lp_controller.php?action=view&lp_id=' . $lp_id.'&id_session='.$session_id;
  3331. $sql = "SELECT * FROM $tbl_tool where name='$name' and image='scormbuilder.gif' and link LIKE '$link%' $session_condition";
  3332. $result = Database::query($sql);
  3333. $num = Database :: num_rows($result);
  3334. $row2 = Database :: fetch_array($result);
  3335. //if ($this->debug > 2) { error_log('New LP - '.$sql.' - '.$num, 0); }
  3336. if (($set_visibility == 'i') && ($num > 0)) {
  3337. $sql = "DELETE FROM $tbl_tool WHERE (name='$name' and image='scormbuilder.gif' and link LIKE '$link%' $session_condition)";
  3338. } elseif (($set_visibility == 'v') && ($num == 0)) {
  3339. $sql = "INSERT INTO $tbl_tool (c_id, name, link, image, visibility, admin, address, added_tool, session_id) VALUES
  3340. ($course_id, '$name','$link','scormbuilder.gif','$v','0','pastillegris.gif',0, $session_id)";
  3341. } else {
  3342. // Parameter and database incompatible, do nothing.
  3343. }
  3344. $result = Database::query($sql);
  3345. //if ($this->debug > 2) { error_log('New LP - Leaving learnpath::toggle_visibility: '.$sql, 0); }
  3346. }
  3347. /**
  3348. * Restart the whole learnpath. Return the URL of the first element.
  3349. * Make sure the results are saved with anoter method. This method should probably be
  3350. * redefined in children classes.
  3351. * To use a similar method statically, use the create_new_attempt() method
  3352. * @return string URL to load in the viewer
  3353. */
  3354. public function restart() {
  3355. if ($this->debug > 0) {
  3356. error_log('New LP - In learnpath::restart()', 0);
  3357. }
  3358. // TODO
  3359. // Call autosave method to save the current progress.
  3360. //$this->index = 0;
  3361. $session_id = api_get_session_id();
  3362. $course_id = api_get_course_int_id();
  3363. $lp_view_table = Database :: get_course_table(TABLE_LP_VIEW);
  3364. $sql = "INSERT INTO $lp_view_table (c_id, lp_id, user_id, view_count, session_id) " .
  3365. "VALUES ($course_id, " . $this->lp_id . "," . $this->get_user_id() . "," . ($this->attempt + 1) . ", $session_id)";
  3366. if ($this->debug > 2) {
  3367. error_log('New LP - Inserting new lp_view for restart: ' . $sql, 0);
  3368. }
  3369. $res = Database::query($sql);
  3370. if ($view_id = Database :: insert_id($res)) {
  3371. $this->lp_view_id = $view_id;
  3372. $this->attempt = $this->attempt + 1;
  3373. } else {
  3374. $this->error = 'Could not insert into item_view table...';
  3375. return false;
  3376. }
  3377. $this->autocomplete_parents($this->current);
  3378. foreach ($this->items as $index => $dummy) {
  3379. $this->items[$index]->restart();
  3380. $this->items[$index]->set_lp_view($this->lp_view_id);
  3381. }
  3382. $this->first();
  3383. return true;
  3384. }
  3385. /**
  3386. * Saves the current item
  3387. * @return boolean
  3388. */
  3389. public function save_current() {
  3390. if ($this->debug > 0) {
  3391. error_log('New LP - In learnpath::save_current()', 0);
  3392. }
  3393. // TODO: Do a better check on the index pointing to the right item (it is supposed to be working
  3394. // on $ordered_items[] but not sure it's always safe to use with $items[]).
  3395. if ($this->debug > 2) {
  3396. error_log('New LP - save_current() saving item ' . $this->current, 0);
  3397. }
  3398. if ($this->debug > 2) {
  3399. error_log('' . print_r($this->items, true), 0);
  3400. }
  3401. if (is_object($this->items[$this->current])) {
  3402. //$res = $this->items[$this->current]->save(false);
  3403. $res = $this->items[$this->current]->save(false, $this->prerequisites_match($this->current));
  3404. $this->autocomplete_parents($this->current);
  3405. $status = $this->items[$this->current]->get_status();
  3406. $this->append_message('new_item_status: ' . $status);
  3407. $this->update_queue[$this->current] = $status;
  3408. return $res;
  3409. }
  3410. return false;
  3411. }
  3412. /**
  3413. * Saves the given item
  3414. * @param integer Item ID. Optional (will take from $_REQUEST if null)
  3415. * @param boolean Save from url params (true) or from current attributes (false). Optional. Defaults to true
  3416. * @return boolean
  3417. */
  3418. public function save_item($item_id = null, $from_outside = true) {
  3419. if ($this->debug > 0) {
  3420. error_log('New LP - In learnpath::save_item(' . $item_id . ',' . $from_outside . ')', 0);
  3421. }
  3422. // TODO: Do a better check on the index pointing to the right item (it is supposed to be working
  3423. // on $ordered_items[] but not sure it's always safe to use with $items[]).
  3424. if (empty ($item_id)) {
  3425. $item_id = $this->escape_string($_REQUEST['id']);
  3426. }
  3427. if (empty ($item_id)) {
  3428. $item_id = $this->get_current_item_id();
  3429. }
  3430. if ($this->debug > 2) {
  3431. error_log('New LP - save_current() saving item ' . $item_id, 0);
  3432. }
  3433. if (is_object($this->items[$item_id])) {
  3434. $res = $this->items[$item_id]->save($from_outside, $this->prerequisites_match($item_id));
  3435. //$res = $this->items[$item_id]->save($from_outside);
  3436. $this->autocomplete_parents($item_id);
  3437. $status = $this->items[$item_id]->get_status();
  3438. $this->append_message('new_item_status: ' . $status);
  3439. $this->update_queue[$item_id] = $status;
  3440. return $res;
  3441. }
  3442. return false;
  3443. }
  3444. /**
  3445. * Saves the last item seen's ID only in case
  3446. */
  3447. public function save_last() {
  3448. if ($this->debug > 0) {
  3449. error_log('New LP - In learnpath::save_last()', 0);
  3450. }
  3451. $session_condition = api_get_session_condition(api_get_session_id(), true, false);
  3452. $table = Database :: get_course_table(TABLE_LP_VIEW);
  3453. if (isset ($this->current)) {
  3454. if ($this->debug > 2) {
  3455. error_log('New LP - Saving current item (' . $this->current . ') for later review', 0);
  3456. }
  3457. $sql = "UPDATE $table SET last_item = " . Database::escape_string($this->get_current_item_id()). " " .
  3458. "WHERE lp_id = " . $this->get_id() . " AND user_id = " . $this->get_user_id().' '.$session_condition;
  3459. if ($this->debug > 2) {
  3460. error_log('New LP - Saving last item seen : ' . $sql, 0);
  3461. }
  3462. $res = Database::query($sql);
  3463. }
  3464. // Save progress.
  3465. list($progress, $text) = $this->get_progress_bar_text('%');
  3466. if ($progress >= 0 && $progress <= 100) {
  3467. $progress = (int) $progress;
  3468. $sql = "UPDATE $table SET progress = $progress " .
  3469. "WHERE lp_id = " . $this->get_id() . " AND " .
  3470. "user_id = " . $this->get_user_id().' '.$session_condition;
  3471. $res = Database::query($sql); // Ignore errors as some tables might not have the progress field just yet.
  3472. $this->progress_db = $progress;
  3473. }
  3474. }
  3475. /**
  3476. * Sets the current item ID (checks if valid and authorized first)
  3477. * @param integer New item ID. If not given or not authorized, defaults to current
  3478. */
  3479. public function set_current_item($item_id = null) {
  3480. if ($this->debug > 0) {
  3481. error_log('New LP - In learnpath::set_current_item(' . $item_id . ')', 0);
  3482. }
  3483. if (empty ($item_id)) {
  3484. if ($this->debug > 2) {
  3485. error_log('New LP - No new current item given, ignore...', 0);
  3486. }
  3487. // Do nothing.
  3488. } else {
  3489. if ($this->debug > 2) {
  3490. error_log('New LP - New current item given is ' . $item_id . '...', 0);
  3491. }
  3492. if (is_numeric($item_id)) {
  3493. $item_id = $this->escape_string($item_id);
  3494. // TODO: Check in database here.
  3495. $this->last = $this->current;
  3496. $this->current = $item_id;
  3497. // TODO: Update $this->index as well.
  3498. foreach ($this->ordered_items as $index => $item) {
  3499. if ($item == $this->current) {
  3500. $this->index = $index;
  3501. break;
  3502. }
  3503. }
  3504. if ($this->debug > 2) {
  3505. error_log('New LP - set_current_item(' . $item_id . ') done. Index is now : ' . $this->index, 0);
  3506. }
  3507. } else {
  3508. error_log('New LP - set_current_item(' . $item_id . ') failed. Not a numeric value: ', 0);
  3509. }
  3510. }
  3511. }
  3512. /**
  3513. * Sets the encoding
  3514. * @param string New encoding
  3515. * TODO (as of Chamilo 1.8.8): Check in the future whether this method is needed.
  3516. */
  3517. public function set_encoding($enc = 'UTF-8') {
  3518. if ($this->debug > 0) {
  3519. error_log('New LP - In learnpath::set_encoding()', 0);
  3520. }
  3521. /* // Deprecated code (Chamilo 1.8.8).
  3522. $enc = strtoupper($enc);
  3523. $encodings = array (
  3524. 'UTF-8',
  3525. 'ISO-8859-1',
  3526. 'ISO-8859-15',
  3527. 'cp1251',
  3528. 'cp1252',
  3529. 'KOI8-R',
  3530. 'BIG5',
  3531. 'GB2312',
  3532. 'Shift_JIS',
  3533. 'EUC-JP',
  3534. ''
  3535. );
  3536. if (in_array($enc, $encodings)) { // TODO: Incorrect comparison, fix it.
  3537. $lp = $this->get_id();
  3538. if ($lp != 0) {
  3539. $tbl_lp = Database :: get_course_table(TABLE_LP_MAIN);
  3540. $sql = "UPDATE $tbl_lp SET default_encoding = '$enc' WHERE id = " . $lp;
  3541. $res = Database::query($sql);
  3542. return $res;
  3543. }
  3544. }
  3545. return false;
  3546. */
  3547. $enc = api_refine_encoding_id($enc);
  3548. if (empty($enc)) {
  3549. $enc = api_get_system_encoding();
  3550. }
  3551. if (api_is_encoding_supported($enc)) {
  3552. $lp = $this->get_id();
  3553. if ($lp != 0) {
  3554. $tbl_lp = Database :: get_course_table(TABLE_LP_MAIN);
  3555. $sql = "UPDATE $tbl_lp SET default_encoding = '$enc' WHERE id = " . $lp;
  3556. $res = Database::query($sql);
  3557. return $res;
  3558. }
  3559. }
  3560. return false;
  3561. }
  3562. /**
  3563. * Sets the JS lib setting in the database directly.
  3564. * This is the JavaScript library file this lp needs to load on startup
  3565. * @param string Proximity setting
  3566. * @return boolean True on update success. False otherwise.
  3567. */
  3568. public function set_jslib($lib = '') {
  3569. if ($this->debug > 0) {
  3570. error_log('New LP - In learnpath::set_jslib()', 0);
  3571. }
  3572. $lp = $this->get_id();
  3573. if ($lp != 0) {
  3574. $tbl_lp = Database :: get_course_table(TABLE_LP_MAIN);
  3575. $sql = "UPDATE $tbl_lp SET js_lib = '$lib' WHERE id = " . $lp;
  3576. $res = Database::query($sql);
  3577. return $res;
  3578. } else {
  3579. return false;
  3580. }
  3581. }
  3582. /**
  3583. * Sets the name of the LP maker (publisher) (and save)
  3584. * @param string Optional string giving the new content_maker of this learnpath
  3585. * @return boolean True
  3586. */
  3587. public function set_maker($name = '') {
  3588. if ($this->debug > 0) {
  3589. error_log('New LP - In learnpath::set_maker()', 0);
  3590. }
  3591. if (empty ($name))
  3592. return false;
  3593. $this->maker = $this->escape_string($name);
  3594. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  3595. $lp_id = $this->get_id();
  3596. $sql = "UPDATE $lp_table SET content_maker = '" . $this->maker . "' WHERE id = '$lp_id'";
  3597. if ($this->debug > 2) {
  3598. error_log('New LP - lp updated with new content_maker : ' . $this->maker, 0);
  3599. }
  3600. $res = Database::query($sql);
  3601. return true;
  3602. }
  3603. /**
  3604. * Sets the name of the current learnpath (and save)
  3605. * @param string Optional string giving the new name of this learnpath
  3606. * @return boolean True/False
  3607. */
  3608. public function set_name($name = '') {
  3609. if ($this->debug > 0) {
  3610. error_log('New LP - In learnpath::set_name()', 0);
  3611. }
  3612. if (empty ($name))
  3613. return false;
  3614. $this->name = $this->escape_string($name);
  3615. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  3616. $lp_id = $this->get_id();
  3617. $sql = "UPDATE $lp_table SET name = '" . $this->name . "' WHERE id = '$lp_id'";
  3618. if ($this->debug > 2) {
  3619. error_log('New LP - lp updated with new name : ' . $this->name, 0);
  3620. }
  3621. $res = Database::query($sql);
  3622. // If the lp is visible on the homepage, change his name there.
  3623. if (Database::affected_rows()) {
  3624. $table = Database :: get_course_table(TABLE_TOOL_LIST);
  3625. $sql = 'UPDATE ' . $table . ' SET
  3626. name = "' . $this->name . '"
  3627. WHERE link = "newscorm/lp_controller.php?action=view&lp_id=' . $lp_id . '"';
  3628. Database::query($sql);
  3629. }
  3630. return true;
  3631. }
  3632. /**
  3633. * Set index specified prefix terms for all items in this path
  3634. * @param string Comma-separated list of terms
  3635. * @param char Xapian term prefix
  3636. * @return boolean False on error, true otherwise
  3637. */
  3638. public function set_terms_by_prefix($terms_string, $prefix) {
  3639. if (api_get_setting('search_enabled') !== 'true')
  3640. return false;
  3641. if (!extension_loaded('xapian')) {
  3642. return false;
  3643. }
  3644. $terms_string = trim($terms_string);
  3645. $terms = explode(',', $terms_string);
  3646. array_walk($terms, 'trim_value');
  3647. $stored_terms = $this->get_common_index_terms_by_prefix($prefix);
  3648. // Don't do anything if no change, verify only at DB, not the search engine.
  3649. if ((count(array_diff($terms, $stored_terms)) == 0) && (count(array_diff($stored_terms, $terms)) == 0))
  3650. return false;
  3651. require_once 'xapian.php'; // TODO: Try catch every xapian use or make wrappers on API.
  3652. require_once api_get_path(LIBRARY_PATH).'search/DokeosIndexer.class.php';
  3653. require_once api_get_path(LIBRARY_PATH).'search/xapian/XapianQuery.php';
  3654. require_once api_get_path(LIBRARY_PATH).'search/IndexableChunk.class.php';
  3655. $items_table = Database :: get_course_table(TABLE_LP_ITEM);
  3656. // TODO: Make query secure agains XSS : use member attr instead of post var.
  3657. $lp_id = intval($_POST['lp_id']);
  3658. $sql = "SELECT * FROM $items_table WHERE lp_id = $lp_id";
  3659. $result = Database::query($sql);
  3660. $di = new DokeosIndexer();
  3661. while ($lp_item = Database :: fetch_array($result)) {
  3662. // Get search_did.
  3663. $tbl_se_ref = Database :: get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
  3664. $sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s AND ref_id_second_level=%d LIMIT 1';
  3665. $sql = sprintf($sql, $tbl_se_ref, $this->cc, TOOL_LEARNPATH, $lp_id, $lp_item['id']);
  3666. //echo $sql; echo '<br>';
  3667. $res = Database::query($sql);
  3668. if (Database::num_rows($res) > 0) {
  3669. $se_ref = Database :: fetch_array($res);
  3670. // Compare terms.
  3671. $doc = $di->get_document($se_ref['search_did']);
  3672. $xapian_terms = xapian_get_doc_terms($doc, $prefix);
  3673. $xterms = array ();
  3674. foreach ($xapian_terms as $xapian_term) {
  3675. $xterms[] = substr($xapian_term['name'], 1);
  3676. }
  3677. $dterms = $terms;
  3678. $missing_terms = array_diff($dterms, $xterms);
  3679. $deprecated_terms = array_diff($xterms, $dterms);
  3680. // Save it to search engine.
  3681. foreach ($missing_terms as $term) {
  3682. $doc->add_term($prefix . $term, 1);
  3683. }
  3684. foreach ($deprecated_terms as $term) {
  3685. $doc->remove_term($prefix . $term);
  3686. }
  3687. $di->getDb()->replace_document((int) $se_ref['search_did'], $doc);
  3688. $di->getDb()->flush();
  3689. } else {
  3690. //@todo What we should do here?
  3691. }
  3692. }
  3693. return true;
  3694. }
  3695. /**
  3696. * Sets the theme of the LP (local/remote) (and save)
  3697. * @param string Optional string giving the new theme of this learnpath
  3698. * @return bool Returns true if theme name is not empty
  3699. */
  3700. public function set_theme($name = '') {
  3701. if ($this->debug > 0) {
  3702. error_log('New LP - In learnpath::set_theme()', 0);
  3703. }
  3704. $this->theme = $this->escape_string($name);
  3705. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  3706. $lp_id = $this->get_id();
  3707. $sql = "UPDATE $lp_table SET theme = '" . $this->theme . "' WHERE id = '$lp_id'";
  3708. if ($this->debug > 2) {
  3709. error_log('New LP - lp updated with new theme : ' . $this->theme, 0);
  3710. }
  3711. //$res = Database::query($sql);
  3712. $res = Database::query($sql);
  3713. return true;
  3714. }
  3715. /**
  3716. * Sets the image of an LP (and save)
  3717. * @param string Optional string giving the new image of this learnpath
  3718. * @return bool Returns true if theme name is not empty
  3719. */
  3720. public function set_preview_image($name = '') {
  3721. if ($this->debug > 0) {
  3722. error_log('New LP - In learnpath::set_preview_image()', 0);
  3723. }
  3724. $this->preview_image = $this->escape_string($name);
  3725. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  3726. $lp_id = $this->get_id();
  3727. $sql = "UPDATE $lp_table SET preview_image = '" . $this->preview_image . "' WHERE id = '$lp_id'";
  3728. if ($this->debug > 2) {
  3729. error_log('New LP - lp updated with new preview image : ' . $this->preview_image, 0);
  3730. }
  3731. $res = Database::query($sql);
  3732. return true;
  3733. }
  3734. /**
  3735. * Sets the author of a LP (and save)
  3736. * @param string Optional string giving the new author of this learnpath
  3737. * @return bool Returns true if author's name is not empty
  3738. */
  3739. public function set_author($name = '') {
  3740. if ($this->debug > 0) {
  3741. error_log('New LP - In learnpath::set_author()', 0);
  3742. }
  3743. $this->author = $this->escape_string($name);
  3744. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  3745. $lp_id = $this->get_id();
  3746. $sql = "UPDATE $lp_table SET author = '" . $this->author . "' WHERE id = '$lp_id'";
  3747. if ($this->debug > 2) {
  3748. error_log('New LP - lp updated with new preview author : ' . $this->author, 0);
  3749. }
  3750. $res = Database::query($sql);
  3751. return true;
  3752. }
  3753. /**
  3754. * Sets the hide_toc_frame parameter of a LP (and save)
  3755. * @param int 1 if frame is hiddent 0 thenelse
  3756. * @return bool Returns true if author's name is not empty
  3757. */
  3758. public function set_hide_toc_frame($hide) {
  3759. if ($this->debug > 0) {
  3760. error_log('New LP - In learnpath::set_hide_toc_frame()', 0);
  3761. }
  3762. if (intval($hide) == $hide){
  3763. $this->hide_toc_frame = $hide;
  3764. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  3765. $lp_id = $this->get_id();
  3766. $sql = "UPDATE $lp_table SET hide_toc_frame = '" . $this->hide_toc_frame . "' WHERE id = '$lp_id'";
  3767. if ($this->debug > 2) {
  3768. error_log('New LP - lp updated with new preview hide_toc_frame : ' . $this->author, 0);
  3769. }
  3770. $res = Database::query($sql);
  3771. return true;
  3772. }
  3773. else {
  3774. return false;
  3775. }
  3776. }
  3777. /**
  3778. * Sets the prerequisite of a LP (and save)
  3779. * @param int integer giving the new prerequisite of this learnpath
  3780. * @return bool returns true if prerequisite is not empty
  3781. */
  3782. public function set_prerequisite($prerequisite) {
  3783. if ($this->debug > 0) {
  3784. error_log('New LP - In learnpath::set_prerequisite()', 0);
  3785. }
  3786. $this->prerequisite = intval($prerequisite);
  3787. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  3788. $lp_id = $this->get_id();
  3789. $sql = "UPDATE $lp_table SET prerequisite = '".$this->prerequisite."' WHERE id = '$lp_id'";
  3790. if ($this->debug > 2) {
  3791. error_log('New LP - lp updated with new preview requisite : ' . $this->requisite, 0);
  3792. }
  3793. $res = Database::query($sql);
  3794. return true;
  3795. }
  3796. /**
  3797. * Sets the location/proximity of the LP (local/remote) (and save)
  3798. * @param string Optional string giving the new location of this learnpath
  3799. * @return boolean True on success / False on error
  3800. */
  3801. public function set_proximity($name = '') {
  3802. if ($this->debug > 0) {
  3803. error_log('New LP - In learnpath::set_proximity()', 0);
  3804. }
  3805. if (empty ($name))
  3806. return false;
  3807. $this->proximity = $this->escape_string($name);
  3808. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  3809. $lp_id = $this->get_id();
  3810. $sql = "UPDATE $lp_table SET content_local = '" . $this->proximity . "' WHERE id = '$lp_id'";
  3811. if ($this->debug > 2) {
  3812. error_log('New LP - lp updated with new proximity : ' . $this->proximity, 0);
  3813. }
  3814. $res = Database::query($sql);
  3815. return true;
  3816. }
  3817. /**
  3818. * Sets the previous item ID to a given ID. Generally, this should be set to the previous 'current' item
  3819. * @param integer DB ID of the item
  3820. */
  3821. public function set_previous_item($id) {
  3822. if ($this->debug > 0) {
  3823. error_log('New LP - In learnpath::set_previous_item()', 0);
  3824. }
  3825. $this->last = $id;
  3826. }
  3827. /**
  3828. * Sets use_max_score
  3829. * @param string Optional string giving the new location of this learnpath
  3830. * @return boolean True on success / False on error
  3831. */
  3832. public function set_use_max_score($use_max_score = 1) {
  3833. if ($this->debug > 0) {
  3834. error_log('New LP - In learnpath::set_use_max_score()', 0);
  3835. }
  3836. $use_max_score = intval($use_max_score);
  3837. $this->use_max_score = $use_max_score;
  3838. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  3839. $lp_id = $this->get_id();
  3840. $sql = "UPDATE $lp_table SET use_max_score = '" . $this->use_max_score . "' WHERE id = '$lp_id'";
  3841. if ($this->debug > 2) {
  3842. error_log('New LP - lp updated with new use_max_score : ' . $this->use_max_score, 0);
  3843. }
  3844. $res = Database::query($sql);
  3845. return true;
  3846. }
  3847. /**
  3848. * Sets and saves the expired_on date
  3849. * @param string Optional string giving the new author of this learnpath
  3850. * @return bool Returns true if author's name is not empty
  3851. */
  3852. public function set_expired_on($expired_on) {
  3853. if ($this->debug > 0) {
  3854. error_log('New LP - In learnpath::set_expired_on()', 0);
  3855. }
  3856. if (!empty($expired_on)) {
  3857. $this->expired_on = $this->escape_string(api_get_utc_datetime($expired_on));
  3858. } else {
  3859. $this->expired_on = '';
  3860. }
  3861. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  3862. $lp_id = $this->get_id();
  3863. $sql = "UPDATE $lp_table SET expired_on = '" . $this->expired_on . "' WHERE id = '$lp_id'";
  3864. if ($this->debug > 2) {
  3865. error_log('New LP - lp updated with new expired_on : ' . $this->expired_on, 0);
  3866. }
  3867. $res = Database::query($sql);
  3868. return true;
  3869. }
  3870. /**
  3871. * Sets and saves the publicated_on date
  3872. * @param string Optional string giving the new author of this learnpath
  3873. * @return bool Returns true if author's name is not empty
  3874. */
  3875. public function set_publicated_on($publicated_on) {
  3876. if ($this->debug > 0) {
  3877. error_log('New LP - In learnpath::set_expired_on()', 0);
  3878. }
  3879. if (!empty($publicated_on)) {
  3880. $this->publicated_on = $this->escape_string(api_get_utc_datetime($publicated_on));
  3881. } else {
  3882. $this->publicated_on = '';
  3883. }
  3884. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  3885. $lp_id = $this->get_id();
  3886. $sql = "UPDATE $lp_table SET publicated_on = '" . $this->publicated_on . "' WHERE id = '$lp_id'";
  3887. if ($this->debug > 2) {
  3888. error_log('New LP - lp updated with new publicated_on : ' . $this->publicated_on, 0);
  3889. }
  3890. $res = Database::query($sql);
  3891. return true;
  3892. }
  3893. /**
  3894. * Sets and saves the expired_on date
  3895. * @param string Optional string giving the new author of this learnpath
  3896. * @return bool Returns true if author's name is not empty
  3897. */
  3898. public function set_modified_on() {
  3899. if ($this->debug > 0) {
  3900. error_log('New LP - In learnpath::set_expired_on()', 0);
  3901. }
  3902. $this->modified_on = api_get_utc_datetime();
  3903. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  3904. $lp_id = $this->get_id();
  3905. $sql = "UPDATE $lp_table SET modified_on = '" . $this->modified_on . "' WHERE id = '$lp_id'";
  3906. if ($this->debug > 2) {
  3907. error_log('New LP - lp updated with new expired_on : ' . $this->modified_on, 0);
  3908. }
  3909. $res = Database::query($sql);
  3910. return true;
  3911. }
  3912. /**
  3913. * Sets the object's error message
  3914. * @param string Error message. If empty, reinits the error string
  3915. * @return void
  3916. */
  3917. public function set_error_msg($error = '') {
  3918. if ($this->debug > 0) {
  3919. error_log('New LP - In learnpath::set_error_msg()', 0);
  3920. }
  3921. if (empty ($error)) {
  3922. $this->error = '';
  3923. } else {
  3924. $this->error .= $error;
  3925. }
  3926. }
  3927. /**
  3928. * Launches the current item if not 'sco' (starts timer and make sure there is a record ready in the DB)
  3929. * @param boolean Whether to allow a new attempt or not
  3930. * @return boolean True
  3931. */
  3932. public function start_current_item($allow_new_attempt = false) {
  3933. if ($this->debug > 0) {
  3934. error_log('New LP - In learnpath::start_current_item()', 0);
  3935. }
  3936. if ($this->current != 0 AND is_object($this->items[$this->current])) {
  3937. $type = $this->get_type();
  3938. $item_type = $this->items[$this->current]->get_type();
  3939. if (($type == 2 && $item_type != 'sco') OR ($type == 3 && $item_type != 'au') OR ($type == 1 && $item_type != TOOL_QUIZ && $item_type != TOOL_HOTPOTATOES)) {
  3940. $this->items[$this->current]->open($allow_new_attempt);
  3941. $this->autocomplete_parents($this->current);
  3942. $prereq_check = $this->prerequisites_match($this->current);
  3943. $this->items[$this->current]->save(false, $prereq_check);
  3944. //$this->update_queue[$this->last] = $this->items[$this->last]->get_status();
  3945. } else {
  3946. // If sco, then it is supposed to have been updated by some other call.
  3947. }
  3948. if ($item_type == 'sco') {
  3949. $this->items[$this->current]->restart();
  3950. }
  3951. }
  3952. if ($this->debug > 0) {
  3953. error_log('New LP - End of learnpath::start_current_item()', 0);
  3954. }
  3955. return true;
  3956. }
  3957. /**
  3958. * Stops the processing and counters for the old item (as held in $this->last)
  3959. * @return boolean True/False
  3960. */
  3961. public function stop_previous_item() {
  3962. if ($this->debug > 0) {
  3963. error_log('New LP - In learnpath::stop_previous_item()', 0);
  3964. }
  3965. if ($this->last != 0 && $this->last != $this->current && is_object($this->items[$this->last])) {
  3966. if ($this->debug > 2) {
  3967. error_log('New LP - In learnpath::stop_previous_item() - ' . $this->last . ' is object', 0);
  3968. }
  3969. switch ($this->get_type()) {
  3970. case '3' :
  3971. if ($this->items[$this->last]->get_type() != 'au') {
  3972. if ($this->debug > 2) {
  3973. error_log('New LP - In learnpath::stop_previous_item() - ' . $this->last . ' in lp_type 3 is <> au', 0);
  3974. }
  3975. $this->items[$this->last]->close();
  3976. //$this->autocomplete_parents($this->last);
  3977. //$this->update_queue[$this->last] = $this->items[$this->last]->get_status();
  3978. } else {
  3979. if ($this->debug > 2) {
  3980. error_log('New LP - In learnpath::stop_previous_item() - Item is an AU, saving is managed by AICC signals', 0);
  3981. }
  3982. }
  3983. case '2' :
  3984. if ($this->items[$this->last]->get_type() != 'sco') {
  3985. if ($this->debug > 2) {
  3986. error_log('New LP - In learnpath::stop_previous_item() - ' . $this->last . ' in lp_type 2 is <> sco', 0);
  3987. }
  3988. $this->items[$this->last]->close();
  3989. //$this->autocomplete_parents($this->last);
  3990. //$this->update_queue[$this->last] = $this->items[$this->last]->get_status();
  3991. } else {
  3992. if ($this->debug > 2) {
  3993. error_log('New LP - In learnpath::stop_previous_item() - Item is a SCO, saving is managed by SCO signals', 0);
  3994. }
  3995. }
  3996. break;
  3997. case '1' :
  3998. default :
  3999. if ($this->debug > 2) {
  4000. error_log('New LP - In learnpath::stop_previous_item() - ' . $this->last . ' in lp_type 1 is asset', 0);
  4001. }
  4002. $this->items[$this->last]->close();
  4003. break;
  4004. }
  4005. } else {
  4006. if ($this->debug > 2) {
  4007. error_log('New LP - In learnpath::stop_previous_item() - No previous element found, ignoring...', 0);
  4008. }
  4009. return false;
  4010. }
  4011. return true;
  4012. }
  4013. /**
  4014. * Updates the default view mode from fullscreen to embedded and inversely
  4015. * @return string The current default view mode ('fullscreen' or 'embedded')
  4016. */
  4017. public function update_default_view_mode() {
  4018. if ($this->debug > 0) {
  4019. error_log('New LP - In learnpath::update_default_view_mode()', 0);
  4020. }
  4021. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  4022. $sql = "SELECT * FROM $lp_table WHERE id = " . $this->get_id();
  4023. $res = Database::query($sql);
  4024. if (Database :: num_rows($res) > 0) {
  4025. $row = Database :: fetch_array($res);
  4026. $view_mode = $row['default_view_mod'];
  4027. if ($view_mode == 'fullscreen') {
  4028. $view_mode = 'embedded';
  4029. } elseif ($view_mode == 'embedded') {
  4030. $view_mode = 'embedframe';
  4031. } elseif ($view_mode == 'embedframe') {
  4032. $view_mode = 'fullscreen';
  4033. }
  4034. $sql = "UPDATE $lp_table SET default_view_mod = '$view_mode' WHERE id = " . $this->get_id();
  4035. $res = Database::query($sql);
  4036. $this->mode = $view_mode;
  4037. return $view_mode;
  4038. } else {
  4039. if ($this->debug > 2) {
  4040. error_log('New LP - Problem in update_default_view() - could not find LP ' . $this->get_id() . ' in DB', 0);
  4041. }
  4042. }
  4043. return -1;
  4044. }
  4045. /**
  4046. * Updates the default behaviour about auto-commiting SCORM updates
  4047. * @return boolean True if auto-commit has been set to 'on', false otherwise
  4048. */
  4049. public function update_default_scorm_commit() {
  4050. if ($this->debug > 0) {
  4051. error_log('New LP - In learnpath::update_default_scorm_commit()', 0);
  4052. }
  4053. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  4054. $sql = "SELECT * FROM $lp_table WHERE id = " . $this->get_id();
  4055. $res = Database::query($sql);
  4056. if (Database :: num_rows($res) > 0) {
  4057. $row = Database :: fetch_array($res);
  4058. $force = $row['force_commit'];
  4059. if ($force == 1) {
  4060. $force = 0;
  4061. $force_return = false;
  4062. } elseif ($force == 0) {
  4063. $force = 1;
  4064. $force_return = true;
  4065. }
  4066. $sql = "UPDATE $lp_table SET force_commit = $force WHERE id = " . $this->get_id();
  4067. $res = Database::query($sql);
  4068. $this->force_commit = $force_return;
  4069. return $force_return;
  4070. } else {
  4071. if ($this->debug > 2) {
  4072. error_log('New LP - Problem in update_default_scorm_commit() - could not find LP ' . $this->get_id() . ' in DB', 0);
  4073. }
  4074. }
  4075. return -1;
  4076. }
  4077. /**
  4078. * Updates the order of learning paths (goes through all of them by order and fills the gaps)
  4079. * @return bool True on success, false on failure
  4080. */
  4081. public function update_display_order() {
  4082. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  4083. $sql = "SELECT * FROM $lp_table ORDER BY display_order";
  4084. $res = Database::query($sql);
  4085. if ($res === false)
  4086. return false;
  4087. $lps = array ();
  4088. $lp_order = array ();
  4089. $num = Database :: num_rows($res);
  4090. // First check the order is correct, globally (might be wrong because
  4091. // of versions < 1.8.4).
  4092. if ($num > 0) {
  4093. $i = 1;
  4094. while ($row = Database :: fetch_array($res)) {
  4095. if ($row['display_order'] != $i) { // If we find a gap in the order, we need to fix it.
  4096. $need_fix = true;
  4097. $sql_u = "UPDATE $lp_table SET display_order = $i WHERE id = " . $row['id'];
  4098. $res_u = Database::query($sql_u);
  4099. }
  4100. $i++;
  4101. }
  4102. }
  4103. return true;
  4104. }
  4105. /**
  4106. * Updates the "prevent_reinit" value that enables control on reinitialising items on second view
  4107. * @return boolean True if prevent_reinit has been set to 'on', false otherwise (or 1 or 0 in this case)
  4108. */
  4109. public function update_reinit() {
  4110. if ($this->debug > 0) {
  4111. error_log('New LP - In learnpath::update_reinit()', 0);
  4112. }
  4113. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  4114. $sql = "SELECT * FROM $lp_table WHERE id = " . $this->get_id();
  4115. $res = Database::query($sql);
  4116. if (Database :: num_rows($res) > 0) {
  4117. $row = Database :: fetch_array($res);
  4118. $force = $row['prevent_reinit'];
  4119. if ($force == 1) {
  4120. $force = 0;
  4121. } elseif ($force == 0) {
  4122. $force = 1;
  4123. }
  4124. $sql = "UPDATE $lp_table SET prevent_reinit = $force WHERE id = " . $this->get_id();
  4125. $res = Database::query($sql);
  4126. $this->prevent_reinit = $force;
  4127. return $force;
  4128. } else {
  4129. if ($this->debug > 2) {
  4130. error_log('New LP - Problem in update_reinit() - could not find LP ' . $this->get_id() . ' in DB', 0);
  4131. }
  4132. }
  4133. return -1;
  4134. }
  4135. /**
  4136. * Determine the attempt_mode thanks to prevent_reinit and seriousgame_mode db flag
  4137. *
  4138. * @return string 'single', 'multi' or 'seriousgame'
  4139. * @author ndiechburg <noel@cblue.be>
  4140. **/
  4141. public function get_attempt_mode()
  4142. {
  4143. if (!isset($this->seriousgame_mode)) { //Set default value for seriousgame_mode
  4144. $this->seriousgame_mode=0;
  4145. }
  4146. if (!isset($this->prevent_reinit)) { // Set default value for prevent_reinit
  4147. $this->prevent_reinit =1;
  4148. }
  4149. if ($this->seriousgame_mode == 1 && $this->prevent_reinit == 1) {
  4150. return 'seriousgame';
  4151. }
  4152. if ($this->seriousgame_mode == 0 && $this->prevent_reinit == 1) {
  4153. return 'single';
  4154. }
  4155. if ($this->seriousgame_mode == 0 && $this->prevent_reinit == 0) {
  4156. return 'multiple';
  4157. }
  4158. return 'single';
  4159. }
  4160. /**
  4161. * Register the attempt mode into db thanks to flags prevent_reinit and seriousgame_mode flags
  4162. *
  4163. * @param string 'seriousgame', 'single' or 'multiple'
  4164. * @return boolean
  4165. * @author ndiechburg <noel@cblue.be>
  4166. **/
  4167. public function set_attempt_mode($mode)
  4168. {
  4169. switch ($mode) {
  4170. case 'seriousgame' :
  4171. $sg_mode = 1;
  4172. $prevent_reinit = 1;
  4173. break;
  4174. case 'single' :
  4175. $sg_mode = 0;
  4176. $prevent_reinit = 1;
  4177. break;
  4178. case 'multiple' :
  4179. $sg_mode = 0;
  4180. $prevent_reinit = 0;
  4181. break;
  4182. default :
  4183. $sg_mode = 0;
  4184. $prevent_reinit = 0;
  4185. break;
  4186. }
  4187. $this->prevent_reinit = $prevent_reinit;
  4188. $this->seriousgame_mode = $sg_mode;
  4189. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  4190. $sql = "UPDATE $lp_table SET prevent_reinit = $prevent_reinit , seriousgame_mode = $sg_mode WHERE id = " . $this->get_id();
  4191. $res = Database::query($sql);
  4192. if ($res) {
  4193. return true;
  4194. }
  4195. else {
  4196. return false;
  4197. }
  4198. }
  4199. /**
  4200. * switch between multiple attempt, single attempt or serious_game mode (only for scorm)
  4201. *
  4202. * @return boolean
  4203. * @author ndiechburg <noel@cblue.be>
  4204. **/
  4205. public function switch_attempt_mode()
  4206. {
  4207. if ($this->debug > 0) {
  4208. error_log('New LP - In learnpath::switch_attempt_mode()', 0);
  4209. }
  4210. $mode = $this->get_attempt_mode();
  4211. switch ($mode) {
  4212. case 'single' :
  4213. $next_mode = 'multiple';
  4214. break;
  4215. case 'multiple' :
  4216. $next_mode = 'seriousgame';
  4217. break;
  4218. case 'seriousgame' :
  4219. $next_mode = 'single';
  4220. break;
  4221. default :
  4222. $next_mode = 'single';
  4223. break;
  4224. }
  4225. $this->set_attempt_mode($next_mode);
  4226. }
  4227. /**
  4228. * Swithc the lp in ktm mode. This is a special scorm mode with unique attempt but possibility to do again a completed item.
  4229. *
  4230. * @return boolean true if seriousgame_mode has been set to 1, false otherwise
  4231. * @author ndiechburg <noel@cblue.be>
  4232. **/
  4233. public function set_seriousgame_mode()
  4234. {
  4235. if ($this->debug > 0) {
  4236. error_log('New LP - In learnpath::set_seriousgame_mode()', 0);
  4237. }
  4238. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  4239. $sql = "SELECT * FROM $lp_table WHERE id = " . $this->get_id();
  4240. $res = Database::query($sql);
  4241. if (Database :: num_rows($res) > 0) {
  4242. $row = Database :: fetch_array($res);
  4243. $force = $row['seriousgame_mode'];
  4244. if ($force == 1) {
  4245. $force = 0;
  4246. } elseif ($force == 0) {
  4247. $force = 1;
  4248. }
  4249. $sql = "UPDATE $lp_table SET seriousgame_mode = $force WHERE id = " . $this->get_id();
  4250. $res = Database::query($sql);
  4251. $this->seriousgame_mode = $force;
  4252. return $force;
  4253. } else {
  4254. if ($this->debug > 2) {
  4255. error_log('New LP - Problem in set_seriousgame_mode() - could not find LP ' . $this->get_id() . ' in DB', 0);
  4256. }
  4257. }
  4258. return -1;
  4259. }
  4260. /**
  4261. * Updates the "scorm_debug" value that shows or hide the debug window
  4262. * @return boolean True if scorm_debug has been set to 'on', false otherwise (or 1 or 0 in this case)
  4263. */
  4264. public function update_scorm_debug() {
  4265. if ($this->debug > 0) {
  4266. error_log('New LP - In learnpath::update_scorm_debug()', 0);
  4267. }
  4268. $lp_table = Database :: get_course_table(TABLE_LP_MAIN);
  4269. $sql = "SELECT * FROM $lp_table WHERE id = " . $this->get_id();
  4270. $res = Database::query($sql);
  4271. if (Database :: num_rows($res) > 0) {
  4272. $row = Database :: fetch_array($res);
  4273. $force = $row['debug'];
  4274. if ($force == 1) {
  4275. $force = 0;
  4276. } elseif ($force == 0) {
  4277. $force = 1;
  4278. }
  4279. $sql = "UPDATE $lp_table SET debug = $force WHERE id = " . $this->get_id();
  4280. $res = Database::query($sql);
  4281. $this->scorm_debug = $force;
  4282. return $force;
  4283. } else {
  4284. if ($this->debug > 2) {
  4285. error_log('New LP - Problem in update_scorm_debug() - could not find LP ' . $this->get_id() . ' in DB', 0);
  4286. }
  4287. }
  4288. return -1;
  4289. }
  4290. /**
  4291. * Function that makes a call to the function sort_tree_array and create_tree_array
  4292. * @author Kevin Van Den Haute
  4293. * @param array
  4294. */
  4295. public function tree_array($array) {
  4296. if ($this->debug > 1) {
  4297. error_log('New LP - In learnpath::tree_array()', 0);
  4298. }
  4299. $array = $this->sort_tree_array($array);
  4300. $this->create_tree_array($array);
  4301. }
  4302. /**
  4303. * Creates an array with the elements of the learning path tree in it
  4304. *
  4305. * @author Kevin Van Den Haute
  4306. * @param array $array
  4307. * @param int $parent
  4308. * @param int $depth
  4309. * @param array $tmp
  4310. */
  4311. public function create_tree_array($array, $parent = 0, $depth = -1, $tmp = array ()) {
  4312. if ($this->debug > 1) {
  4313. error_log('New LP - In learnpath::create_tree_array())', 0);
  4314. }
  4315. if (is_array($array)) {
  4316. for ($i = 0; $i < count($array); $i++) {
  4317. if ($array[$i]['parent_item_id'] == $parent) {
  4318. if (!in_array($array[$i]['parent_item_id'], $tmp)) {
  4319. $tmp[] = $array[$i]['parent_item_id'];
  4320. $depth++;
  4321. }
  4322. $preq = (empty($array[$i]['prerequisite']) ? '' : $array[$i]['prerequisite']);
  4323. $audio = isset($array[$i]['audio']) ? $array[$i]['audio'] : null;
  4324. $this->arrMenu[] = array (
  4325. 'id' => $array[$i]['id'],
  4326. 'item_type' => $array[$i]['item_type'],
  4327. 'title' => $array[$i]['title'],
  4328. 'path' => $array[$i]['path'],
  4329. 'description' => $array[$i]['description'],
  4330. 'parent_item_id' => $array[$i]['parent_item_id'],
  4331. 'previous_item_id' => $array[$i]['previous_item_id'],
  4332. 'next_item_id' => $array[$i]['next_item_id'],
  4333. 'min_score' => $array[$i]['min_score'],
  4334. 'max_score' => $array[$i]['max_score'],
  4335. 'mastery_score' => $array[$i]['mastery_score'],
  4336. 'display_order' => $array[$i]['display_order'],
  4337. 'prerequisite' => $preq,
  4338. 'depth' => $depth,
  4339. 'audio' => $audio
  4340. );
  4341. $this->create_tree_array($array, $array[$i]['id'], $depth, $tmp);
  4342. }
  4343. }
  4344. }
  4345. }
  4346. /**
  4347. * Sorts a multi dimensional array by parent id and display order
  4348. * @author Kevin Van Den Haute
  4349. *
  4350. * @param array $array (array with al the learning path items in it)
  4351. *
  4352. * @return array
  4353. */
  4354. public function sort_tree_array($array) {
  4355. foreach ($array as $key => $row) {
  4356. $parent[$key] = $row['parent_item_id'];
  4357. $position[$key] = $row['display_order'];
  4358. }
  4359. if (count($array) > 0)
  4360. array_multisort($parent, SORT_ASC, $position, SORT_ASC, $array);
  4361. return $array;
  4362. }
  4363. /**
  4364. * Function that creates a table structure with a learning path his modules, chapters and documents.
  4365. * Also the actions for the modules, chapters and documents are in this table.
  4366. * @author Kevin Van Den Haute
  4367. * @param int $lp_id
  4368. * @return string
  4369. */
  4370. public function overview() {
  4371. $is_allowed_to_edit = api_is_allowed_to_edit(null,true);
  4372. if ($this->debug > 0) {
  4373. error_log('New LP - In learnpath::overview()', 0);
  4374. }
  4375. global $charset, $_course;
  4376. $_SESSION['gradebook'] = isset($_GET['gradebook']) ? Security :: remove_XSS($_GET['gradebook']) : null;
  4377. $return = '';
  4378. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  4379. $sql = "SELECT * FROM " . $tbl_lp_item . "
  4380. WHERE lp_id = " . $this->lp_id;
  4381. $result = Database::query($sql);
  4382. $arrLP = array ();
  4383. while ($row = Database :: fetch_array($result)) {
  4384. $row['title'] = Security :: remove_XSS($row['title']);
  4385. $row['description'] = Security :: remove_XSS($row['description']);
  4386. $arrLP[] = array (
  4387. 'id' => $row['id'],
  4388. 'item_type' => $row['item_type'],
  4389. 'title' => $row['title'],
  4390. 'path' => $row['path'],
  4391. 'description' => $row['description'],
  4392. 'parent_item_id' => $row['parent_item_id'],
  4393. 'previous_item_id' => $row['previous_item_id'],
  4394. 'next_item_id' => $row['next_item_id'],
  4395. 'max_score' => $row['max_score'],
  4396. 'min_score' => $row['min_score'],
  4397. 'mastery_score' => $row['mastery_score'],
  4398. 'prerequisite' => $row['prerequisite'],
  4399. 'display_order' => $row['display_order'],
  4400. 'audio' => $row['audio']
  4401. );
  4402. }
  4403. $this->tree_array($arrLP);
  4404. $arrLP = $this->arrMenu;
  4405. unset ($this->arrMenu);
  4406. $update_audio = isset($_GET['updateaudio']) ? $_GET['updateaudio'] : null;
  4407. if ($is_allowed_to_edit) {
  4408. $token = Security::get_token();
  4409. $gradebook = isset($_GET['gradebook']) ? Security :: remove_XSS($_GET['gradebook']) : null;
  4410. $return .= '<div class="actions">';
  4411. $return .= '<a href="' . api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;gradebook=' . $gradebook . '&amp;action=build&amp;lp_id=' . $this->lp_id . '" title="' . get_lang('Build') . '">' . Display :: return_icon('build_learnpath.png', get_lang('Build'),'','32').'</a>';
  4412. if ($update_audio == 'true') {
  4413. $return .='<a href="lp_controller.php?cidReq='.Security::remove_XSS($_GET['cidReq']) .'&amp;gradebook='.$gradebook.'&amp;action=admin_view&amp;lp_id=' . $_SESSION['oLP']->lp_id . '" title="'.get_lang('BasicOverview').'">'.Display::return_icon('move_learnpath.png', get_lang('BasicOverview'),'','32').'</a>';
  4414. } else {
  4415. $return .= Display :: return_icon('move_learnpath_na.png', get_lang('BasicOverview'),'',32);
  4416. }
  4417. $return .= '<a href="lp_controller.php?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&action=view&lp_id=' . $this->lp_id . '">' . Display :: return_icon('view_left_right.png', get_lang('Display'),'','32').'</a>';
  4418. $return .= ' '.Display :: return_icon('i.gif');
  4419. $return .= '<a href="' . api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;gradebook=' . $gradebook . '&amp;action=add_item&amp;type=step&amp;lp_id=' . $_SESSION['oLP']->lp_id . '" title="' . get_lang('NewStep') . '">
  4420. '. Display :: return_icon('new_learnigpath_object.png', get_lang('NewStep'),'','32').'</a>';
  4421. $return .= '<a href="' . api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;gradebook=' . $gradebook . '&amp;action=add_item&amp;type=chapter&amp;lp_id=' . $_SESSION['oLP']->lp_id . '" title="' . get_lang('NewChapter') . '">
  4422. '. Display :: return_icon('add_learnpath_section.png', get_lang('NewChapter'),'','32').'</a>';
  4423. if ($update_audio == 'true') {
  4424. $return .= Display::url(Display :: return_icon('upload_audio_na.png', get_lang('UpdateAllAudioFragments'),'','32'),'#');
  4425. } else {
  4426. $return .= '<a href="' . api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;action=' . Security :: remove_XSS($_GET['action']) . '&amp;lp_id=' . $_SESSION['oLP']->lp_id . '&amp;updateaudio=true">' . Display :: return_icon('upload_audio.png', get_lang('UpdateAllAudioFragments'),'','32').'</a>';
  4427. }
  4428. $return .= '<a href="lp_controller.php?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;action=edit&amp;lp_id=' . $_SESSION['oLP']->lp_id . '">' . Display :: return_icon('settings.png', get_lang('CourseSettings'),'','32').'</a>';
  4429. $return .= '</div>';
  4430. }
  4431. // we need to start a form when we want to update all the mp3 files
  4432. if ($update_audio == 'true' AND count($arrLP) <> 0) {
  4433. $return .= '<form action="' . api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;updateaudio=' . Security :: remove_XSS($_GET['updateaudio']) .'&amp;action=' . Security :: remove_XSS($_GET['action']) . '&amp;lp_id=' . $_SESSION['oLP']->lp_id . '" method="post" enctype="multipart/form-data" name="updatemp3" id="updatemp3">';
  4434. //$return .= Display::return_message(get_lang('LeaveEmptyToKeepCurrentFile'), 'warning');
  4435. }
  4436. $return .= '<div id="message"></div>';
  4437. $return_audio .= '<table class="data_table">';
  4438. $return_audio .= '<tr>';
  4439. $return_audio .= '<th width="60%">' . get_lang('Title') . '</th>';
  4440. $return_audio .= '<th>' . get_lang('Audio') . '</th>';
  4441. //$return_audio .= '<th>' . get_lang('Actions') . '</th>';
  4442. $return_audio .= '</tr>';
  4443. $elements = array();
  4444. for ($i = 0; $i < count($arrLP); $i++) {
  4445. $title = $arrLP[$i]['title'];
  4446. if (($i % 2) == 0) {
  4447. $oddclass = 'row_odd';
  4448. } else {
  4449. $oddclass = 'row_even';
  4450. }
  4451. $return_audio .= '<tr id ="lp_item_'.$arrLP[$i]['id'] .'" class="' . $oddclass . '">';
  4452. // "lp_item_'.$i.' is important for the drag and drop otherwise the LP will not work
  4453. $icon_name = str_replace(' ', '', $arrLP[$i]['item_type']);
  4454. /*
  4455. if (file_exists('../img/lp_' . $icon_name . '.png')) {
  4456. $return .= '<td style="padding-left:' . $arrLP[$i]['depth'] * 10 . 'px;"><img align="left" src="../img/lp_' . $icon_name . '.png" style="margin-right:3px;" />' . $title . '</td>';
  4457. } else {
  4458. if (file_exists('../img/lp_' . $icon_name . '.gif')) {
  4459. $return .= '<td style="padding-left:' . $arrLP[$i]['depth'] * 10 . 'px;"><img align="left" src="../img/lp_' . $icon_name . '.gif" style="margin-right:3px;" />' . $title . '</td>';
  4460. } else {
  4461. //$return .= '<td style="padding-left:' . $arrLP[$i]['depth'] * 10 . 'px;">' . Display::display_icon('folder_document.gif','',array('style'=>'margin-right:3px;')) . $title . '</td>';
  4462. $return .= '<td style="padding-left:' . $arrLP[$i]['depth'] * 10 . 'px;"><img align="left" src="../img/folder_document.gif" style="margin-right:3px;" />' . $title . '</td>';
  4463. }
  4464. }*/
  4465. $icon = '';
  4466. if (file_exists('../img/lp_' . $icon_name . '.png')) {
  4467. $icon = '<img align="left" src="../img/lp_' . $icon_name . '.png" style="margin-right:3px;" />';
  4468. } else {
  4469. if (file_exists('../img/lp_' . $icon_name . '.gif')) {
  4470. $icon = '<img align="left" src="../img/lp_' . $icon_name . '.gif" style="margin-right:3px;" />';
  4471. } else {
  4472. $icon = '<img align="left" src="../img/folder_document.gif" style="margin-right:3px;" />';
  4473. }
  4474. }
  4475. // The audio column.
  4476. $return_audio .= '<td align="center">';
  4477. $audio = '';
  4478. if (!$update_audio OR $update_audio <> 'true') {
  4479. if (!empty ($arrLP[$i]['audio'])) {
  4480. $audio .= '<span id="container'.$i.'"><a href="http://www.macromedia.com/go/getflashplayer">Get the Flash Player</a> to see this player.</span>';
  4481. $audio .= '<script type="text/javascript" src="../inc/lib/mediaplayer/swfobject.js"></script>';
  4482. $audio .= '<script type="text/javascript">
  4483. var s1 = new SWFObject("../inc/lib/mediaplayer/player.swf","ply","250","20","9","#FFFFFF");
  4484. s1.addParam("allowscriptaccess","always");
  4485. s1.addParam("flashvars","file=../../courses/' . $_course['path'] . '/document/audio/' . $arrLP[$i]['audio'] . '");
  4486. s1.write("container' . $i . '");
  4487. </script>';
  4488. } else {
  4489. $audio .= '';
  4490. }
  4491. } else {
  4492. if ($arrLP[$i]['item_type'] != 'dokeos_chapter' && $arrLP[$i]['item_type'] != 'dokeos_module' && $arrLP[$i]['item_type'] != 'dir') {
  4493. $audio .= '<input type="file" name="mp3file' . $arrLP[$i]['id'] . '" id="mp3file" />';
  4494. if (!empty ($arrLP[$i]['audio'])) {
  4495. $audio .= '<br />'.Security::remove_XSS($arrLP[$i]['audio']).'<br /><input type="checkbox" name="removemp3' . $arrLP[$i]['id'] . '" id="checkbox' . $arrLP[$i]['id'] . '" />' . get_lang('RemoveAudio');
  4496. }
  4497. }
  4498. }
  4499. $return_audio .= Display::span($title.$icon).Display::tag('td', $audio, array('style'=>'text-align:right'));
  4500. $return_audio .= '</td>';
  4501. $move_icon = '';
  4502. $edit_icon = '';
  4503. $delete_icon = '';
  4504. if ($is_allowed_to_edit) {
  4505. if (!$update_audio OR $update_audio <> 'true') {
  4506. $move_icon .= '<a class="moved" href="#">';
  4507. $move_icon .= Display::return_icon('move.png', get_lang('Move'), array(), 24);
  4508. $move_icon .= '</a>';
  4509. }
  4510. if ($arrLP[$i]['item_type'] != 'dokeos_chapter' && $arrLP[$i]['item_type'] != 'dokeos_module') {
  4511. $edit_icon .= '<a href="' . api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;action=edit_item&amp;view=build&amp;id=' . $arrLP[$i]['id'] . '&amp;lp_id=' . $this->lp_id . '&amp;path_item=' . $arrLP[$i]['path'] . '">';
  4512. $edit_icon .= '<img style="margin:1px;" alt="" src="../img/edit.png" title="' . get_lang('_edit_learnpath_module') . '" />';
  4513. $edit_icon .= '</a>';
  4514. } else {
  4515. $edit_icon .= '<a href="' . api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;action=edit_item&amp;id=' . $arrLP[$i]['id'] . '&amp;lp_id=' . $this->lp_id . '&amp;path_item=' . $arrLP[$i]['path'] . '">';
  4516. $edit_icon .= '<img style="margin:1px;" alt="" src="../img/edit.png" title="' . get_lang('_edit_learnpath_module') . '" />';
  4517. $edit_icon .= '</a>';
  4518. }
  4519. $delete_icon .= '<a href="' . api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;action=delete_item&amp;id=' . $arrLP[$i]['id'] . '&amp;lp_id=' . $this->lp_id . '" onClick="return confirmation(\'' . addslashes($title) . '\');">';
  4520. $delete_icon .= '<img style="margin:1px;" alt="" src="../img/delete.png" title="' . get_lang('_delete_learnpath_module') . '" />';
  4521. $delete_icon .= '</a>';
  4522. }
  4523. if ($update_audio != 'true') {
  4524. $row = $move_icon.Display::span($title.$icon).Display::span($audio.$edit_icon.$delete_icon, array('class'=>'button_actions'));
  4525. } else {
  4526. $row = Display::span($title.$icon).Display::span($audio, array('class'=>'button_actions'));
  4527. }
  4528. $parent_id = $arrLP[$i]['parent_item_id'];
  4529. $default_data[$arrLP[$i]['id']] = $row;
  4530. $default_content[$arrLP[$i]['id']] = $arrLP[$i];
  4531. if (empty($parent_id)) {
  4532. $elements[$arrLP[$i]['id']]['data'] = $row;
  4533. $elements[$arrLP[$i]['id']]['type'] = $arrLP[$i]['item_type'];
  4534. } else {
  4535. $parent_arrays = array();
  4536. if ($arrLP[$i]['depth'] > 1) {
  4537. //Getting list of parents
  4538. for($j = 0; $j < $arrLP[$i]['depth']; $j++) {
  4539. foreach($arrLP as $item) {
  4540. if ($item['id'] == $parent_id) {
  4541. if ($item['parent_item_id'] == 0) {
  4542. $parent_id = $item['id'];
  4543. //$parent_arrays[] = $parent_id;
  4544. break;
  4545. } else {
  4546. $parent_id = $item['parent_item_id'];
  4547. if (empty($parent_arrays)) {
  4548. $parent_arrays[] = intval($item['id']);
  4549. }
  4550. $parent_arrays[] = $parent_id;
  4551. break;
  4552. }
  4553. }
  4554. }
  4555. }
  4556. }
  4557. if (!empty($parent_arrays)) {
  4558. $parent_arrays = array_reverse($parent_arrays);
  4559. $value_to_insert = array();
  4560. $val = '$elements';
  4561. $x = 0;
  4562. foreach($parent_arrays as $item) {
  4563. if ($x != count($parent_arrays) -1) {
  4564. $val .= '["'.$item.'"]["children"]';
  4565. } else {
  4566. $val .= '["'.$item.'"]["children"]';
  4567. }
  4568. $x++;
  4569. }
  4570. $val .= "";
  4571. $generated_array = null;
  4572. $code_str = $val."[".$arrLP[$i]['id']."][\"load_data\"] = '".$arrLP[$i]['id']."' ; ";
  4573. eval($code_str);
  4574. } else {
  4575. $elements[$parent_id]['children'][$arrLP[$i]['id']]['data'] = $row;
  4576. $elements[$parent_id]['children'][$arrLP[$i]['id']]['type'] = $arrLP[$i]['item_type'];
  4577. }
  4578. }
  4579. }
  4580. //@todo move this somewhere else
  4581. function print_recursive($elements, $default_data, $default_content) {
  4582. $return = '';
  4583. foreach($elements as $key => $item) {
  4584. if (isset($item['load_data']) || empty($item['data'])) {
  4585. $item['data'] = $default_data[$item['load_data']];
  4586. $item['type'] = $default_content[$item['load_data']]['item_type'];
  4587. }
  4588. $sub_list = '';
  4589. if (isset($item['type']) && $item['type'] == 'dokeos_chapter') {
  4590. $sub_list = Display::tag('li', '', array('class'=>'sub_item empty')); // empty value
  4591. }
  4592. if (empty($item['children'])) {
  4593. $sub_list = Display::tag('ul', $sub_list, array('id'=>'UL_'.$key, 'class'=>'record container'));
  4594. $return .= Display::tag('li', Display::div($item['data'], array('class'=>'item_data')).$sub_list, array('id'=>$key, 'class'=>'record container'));
  4595. } else {
  4596. //sections
  4597. if (isset($item['children'])) {
  4598. $data = print_recursive($item['children'], $default_data, $default_content);
  4599. }
  4600. /*foreach($item['children'] as $my_key => $sub_item) {
  4601. $sub_list .= Display::tag('li', $sub_item['data'], array('id'=>$my_key,'class'=>'record item'));
  4602. }*/
  4603. $sub_list = Display::tag('ul', $sub_list.$data, array('id'=>'UL_'.$key, 'class'=>'record container'));
  4604. $return .= Display::tag('li', Display::div($item['data'], array('class'=>'item_data')).$sub_list, array('id'=>$key, 'class'=>'record container'));
  4605. }
  4606. }
  4607. return $return;
  4608. }
  4609. if ($update_audio != 'true') {
  4610. $return .= '<div style="width:90%;"><ul id="lp_item_list">';
  4611. $return .= print_recursive($elements, $default_data, $default_content);
  4612. $return .='</ul></div>';
  4613. $return .= Display::div(Display::url(get_lang('Save'), '#', array('id'=>'listSubmit', 'class'=>'a_button orange medium')), array('style'=>'float:left; margin-top:15px;width:100%'));
  4614. } else {
  4615. $return .= $return_audio.'</table>';
  4616. }
  4617. /*
  4618. if (count($arrLP) == 0) {
  4619. $return .= '<tr>';
  4620. $return .= '<td colspan="4">' . get_lang('NoItemsInLp') . '</td>';
  4621. $return .= '</tr>';
  4622. }*/
  4623. // We need to close the form when we are updating the mp3 files.
  4624. if ($update_audio == 'true') {
  4625. $return .= '<div style="margin:40px 0; float:right;"><button class="save" type="submit" name="save_audio" id="save_audio">' . get_lang('SaveAudioAndOrganization') . '</button></div>'; // TODO: What kind of language variable is this?
  4626. }
  4627. // We need to close the form when we are updating the mp3 files.
  4628. if ($update_audio == 'true' && count($arrLP) != 0) {
  4629. $return .= '</form>';
  4630. }
  4631. return $return;
  4632. }
  4633. /**
  4634. * This function builds the action menu
  4635. * @return void
  4636. */
  4637. public function build_action_menu() {
  4638. $gradebook = isset($_GET['gradebook']) ? Security :: remove_XSS($_GET['gradebook']) : null;
  4639. echo '<div class="actions">';
  4640. echo Display :: return_icon('build_learnpath_na.png', get_lang('Build'),'','32');
  4641. echo '<a href="' . api_get_self().'?'.api_get_cidreq().'&amp;gradebook=' . $gradebook . '&amp;action=admin_view&amp;lp_id=' . $_SESSION['oLP']->lp_id . '" title="' . get_lang('BasicOverview') . '">' . Display :: return_icon('move_learnpath.png', get_lang('BasicOverview'),'','32').'</a>';
  4642. echo '<a href="lp_controller.php?'.api_get_cidreq().'&amp;gradebook=' . $gradebook . '&action=view&lp_id=' . $_SESSION['oLP']->lp_id . '">' . Display :: return_icon('view_left_right.png', get_lang('Display'),'','32').'</a> ';
  4643. Display :: display_icon('i.gif');
  4644. echo '<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;gradebook=' . $gradebook . '&amp;action=add_item&amp;type=step&amp;lp_id=' . $_SESSION['oLP']->lp_id . '" title="' . get_lang('NewStep') . '">' . Display :: return_icon('new_learnigpath_object.png', get_lang('NewStep'),'','32').'</a>';
  4645. echo '<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;gradebook=' . $gradebook . '&amp;action=add_item&amp;type=chapter&amp;lp_id=' . $_SESSION['oLP']->lp_id . '" title="' . get_lang('NewChapter') . '">' . Display :: return_icon('add_learnpath_section.png', get_lang('NewChapter'),'','32').'</a>';
  4646. echo '<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;action=admin_view&amp;lp_id=' . $_SESSION['oLP']->lp_id . '&amp;updateaudio=true">' . Display :: return_icon('upload_audio.png', get_lang('UpdateAllAudioFragments'),'','32').'</a>';
  4647. echo '<a href="lp_controller.php?'.api_get_cidreq().'&amp;action=edit&amp;lp_id=' . $_SESSION['oLP']->lp_id . '">' . Display :: return_icon('settings.png', get_lang('CourseSettings'),'','32').'</a>';
  4648. echo '</div>';
  4649. }
  4650. /**
  4651. * This functions builds the LP tree based on data from the database.
  4652. * @return string
  4653. * @uses dtree.js :: necessary javascript for building this tree
  4654. */
  4655. public function build_tree() {
  4656. $return = "<script type=\"text/javascript\">\n";
  4657. $return .= "\tm = new dTree('m');\n\n";
  4658. $return .= "\tm.config.folderLinks = true;\n";
  4659. $return .= "\tm.config.useCookies = true;\n";
  4660. $return .= "\tm.config.useIcons = true;\n";
  4661. $return .= "\tm.config.useLines = true;\n";
  4662. $return .= "\tm.config.useSelection = true;\n";
  4663. $return .= "\tm.config.useStatustext = false;\n\n";
  4664. $menu = 0;
  4665. $parent = '';
  4666. $return .= "\tm.add(" . $menu . ", -1, '" . addslashes(Security::remove_XSS(($this->name))) . "');\n";
  4667. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  4668. $sql = " SELECT id, title, description, item_type, path, parent_item_id, previous_item_id, next_item_id, max_score, min_score, mastery_score, display_order
  4669. FROM $tbl_lp_item
  4670. WHERE lp_id = " . Database :: escape_string($this->lp_id);
  4671. $result = Database::query($sql);
  4672. $arrLP = array ();
  4673. while ($row = Database :: fetch_array($result)) {
  4674. $row['title'] = Security :: remove_XSS($row['title']);
  4675. $row['description'] = Security :: remove_XSS($row['description']);
  4676. $arrLP[] = array (
  4677. 'id' => $row['id'],
  4678. 'item_type' => $row['item_type'],
  4679. 'title' => $row['title'],
  4680. 'path' => $row['path'],
  4681. 'description' => $row['description'],
  4682. 'parent_item_id' => $row['parent_item_id'],
  4683. 'previous_item_id' => $row['previous_item_id'],
  4684. 'next_item_id' => $row['next_item_id'],
  4685. 'max_score' => $row['max_score'],
  4686. 'min_score' => $row['min_score'],
  4687. 'mastery_score' => $row['mastery_score'],
  4688. 'display_order' => $row['display_order']
  4689. );
  4690. }
  4691. $this->tree_array($arrLP);
  4692. $arrLP = $this->arrMenu;
  4693. unset ($this->arrMenu);
  4694. $title = '';
  4695. for ($i = 0; $i < count($arrLP); $i++) {
  4696. $title = addslashes($arrLP[$i]['title']);
  4697. $menu_page = api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;action=view_item&amp;id=' . $arrLP[$i]['id'] . '&amp;lp_id=' . $_SESSION['oLP']->lp_id;
  4698. $icon_name = str_replace(' ', '', $arrLP[$i]['item_type']);
  4699. if (file_exists('../img/lp_' . $icon_name . '.png')) {
  4700. $return .= "\tm.add(" . $arrLP[$i]['id'] . ", " . $arrLP[$i]['parent_item_id'] . ", '" . $title . "', '" . $menu_page . "', '', '', '../img/lp_" . $icon_name . ".png', '../img/lp_" . $icon_name . ".png');\n";
  4701. } else
  4702. if (file_exists('../img/lp_' . $icon_name . '.gif')) {
  4703. $return .= "\tm.add(" . $arrLP[$i]['id'] . ", " . $arrLP[$i]['parent_item_id'] . ", '" . $title . "', '" . $menu_page . "', '', '', '../img/lp_" . $icon_name . ".gif', '../img/lp_" . $icon_name . ".gif');\n";
  4704. } else {
  4705. $return .= "\tm.add(" . $arrLP[$i]['id'] . ", " . $arrLP[$i]['parent_item_id'] . ", '" . $title . "', '" . $menu_page . "', '', '', '../img/folder_document.gif', '../img/folder_document.gif');\n";
  4706. }
  4707. if ($menu < $arrLP[$i]['id'])
  4708. $menu = $arrLP[$i]['id'];
  4709. }
  4710. $return .= "\n\tdocument.write(m);\n";
  4711. $return .= "\t if(!m.selectedNode) m.s(1);";
  4712. $return .= "</script>\n";
  4713. return $return;
  4714. }
  4715. public function generate_lp_folder($course, $dir) {
  4716. $filepath = '';
  4717. //Creating learning_path folder
  4718. $dir = '/learning_path';
  4719. $filepath = api_get_path(SYS_COURSE_PATH) . $course['path'] . '/document';
  4720. $folder = null;
  4721. if (!is_dir($filepath.'/'.$dir)) {
  4722. $folder = create_unexisting_directory($course, api_get_user_id(), api_get_session_id(), 0, 0, $filepath, $dir , get_lang('LearningPaths'));
  4723. } else {
  4724. $folder = true;
  4725. }
  4726. $dir = '/learning_path/';
  4727. //Creating LP folder
  4728. if ($folder) {
  4729. //Limits title size
  4730. $title = api_substr(replace_dangerous_char($this->name), 0 , 80);
  4731. $dir = $dir.$title;
  4732. $filepath = api_get_path(SYS_COURSE_PATH) . $course['path'] . '/document';
  4733. if (!is_dir($filepath.'/'.$dir)) {
  4734. $folder = create_unexisting_directory($course, api_get_user_id(), api_get_session_id(), 0, 0, $filepath, $dir , $this->name);
  4735. } else {
  4736. $folder = true;
  4737. }
  4738. $dir = $dir.'/';
  4739. if ($folder) {
  4740. $filepath = api_get_path(SYS_COURSE_PATH) . $course['path'] . '/document'.$dir;
  4741. }
  4742. }
  4743. $array = array('dir' => $dir, 'filepath' => $filepath);
  4744. return $array;
  4745. }
  4746. /**
  4747. * Create a new document //still needs some finetuning
  4748. * @param array $_course
  4749. * @return string
  4750. */
  4751. public function create_document($_course) {
  4752. global $charset;
  4753. $dir = isset ($_GET['dir']) ? $_GET['dir'] : $_POST['dir']; // Please, do not modify this dirname formatting.
  4754. if (strstr($dir, '..'))
  4755. $dir = '/';
  4756. if ($dir[0] == '.')
  4757. $dir = substr($dir, 1);
  4758. if ($dir[0] != '/')
  4759. $dir = '/' . $dir;
  4760. if ($dir[strlen($dir) - 1] != '/')
  4761. $dir .= '/';
  4762. $filepath = api_get_path(SYS_COURSE_PATH) . $_course['path'] . '/document' . $dir;
  4763. if (empty($_POST['dir']) && empty($_GET['dir'])) {
  4764. $result = $this->generate_lp_folder($_course, $dir);
  4765. $dir = $result['dir'];
  4766. $filepath = $result['filepath'];
  4767. }
  4768. if (!is_dir($filepath)) {
  4769. $filepath = api_get_path(SYS_COURSE_PATH) . $_course['path'] . '/document/';
  4770. $dir = '/';
  4771. }
  4772. // stripslashes() before calling replace_dangerous_char() because $_POST['title']
  4773. // is already escaped twice when it gets here.
  4774. $title = replace_dangerous_char(stripslashes($_POST['title']));
  4775. $title = disable_dangerous_file($title);
  4776. $filename = $title;
  4777. $content = $_POST['content_lp'];
  4778. $tmp_filename = $filename;
  4779. $i = 0;
  4780. while (file_exists($filepath . $tmp_filename . '.html'))
  4781. $tmp_filename = $filename . '_' . ++ $i;
  4782. $filename = $tmp_filename . '.html';
  4783. $content = stripslashes($content);
  4784. $content = str_replace(api_get_path(WEB_COURSE_PATH), api_get_path(REL_PATH).'courses/', $content);
  4785. // Change the path of mp3 to absolute.
  4786. // The first regexp deals with ../../../ urls.
  4787. $content = preg_replace("|(flashvars=\"file=)(\.+/)+|", "$1" . api_get_path(REL_COURSE_PATH) . $_course['path'] . '/document/', $content);
  4788. // The second regexp deals with audio/ urls.
  4789. $content = preg_replace("|(flashvars=\"file=)([^/]+)/|", "$1" . api_get_path(REL_COURSE_PATH) . $_course['path'] . '/document/$2/', $content);
  4790. // For flv player: To prevent edition problem with firefox, we have to use a strange tip (don't blame me please).
  4791. $content = str_replace('</body>', '<style type="text/css">body{}</style></body>', $content);
  4792. if (!file_exists($filepath . $filename)) {
  4793. if ($fp = @ fopen($filepath . $filename, 'w')) {
  4794. fputs($fp, $content);
  4795. fclose($fp);
  4796. $file_size = filesize($filepath . $filename);
  4797. $save_file_path = $dir.$filename;
  4798. $document_id = add_document($_course, $save_file_path, 'file', $file_size, $tmp_filename);
  4799. if ($document_id) {
  4800. api_item_property_update($_course, TOOL_DOCUMENT, $document_id, 'DocumentAdded', api_get_user_id(), null, null, null, null, api_get_session_id());
  4801. $new_comment = (isset($_POST['comment'])) ? trim($_POST['comment']) : '';
  4802. $new_title = (isset($_POST['title'])) ? trim($_POST['title']) : '';
  4803. if ($new_comment || $new_title) {
  4804. $tbl_doc = Database :: get_course_table(TABLE_DOCUMENT);
  4805. $ct = '';
  4806. if ($new_comment)
  4807. $ct .= ", comment='" . Database::escape_string($new_comment). "'";
  4808. if ($new_title)
  4809. $ct .= ", title='" . Database :: escape_string(htmlspecialchars($new_title, ENT_QUOTES, $charset))."' ";
  4810. $sql_update = "UPDATE " . $tbl_doc ." SET " . substr($ct, 1)." WHERE id = " . $document_id;
  4811. Database::query($sql_update);
  4812. }
  4813. }
  4814. return $document_id;
  4815. }
  4816. }
  4817. }
  4818. /**
  4819. * Edit a document based on $_POST and $_GET parameters 'dir' and 'path'
  4820. * @param array $_course array
  4821. * @return void
  4822. */
  4823. public function edit_document($_course) {
  4824. global $_configuration;
  4825. $dir = isset ($_GET['dir']) ? $_GET['dir'] : $_POST['dir']; // Please, do not modify this dirname formatting.
  4826. if (strstr($dir, '..'))
  4827. $dir = '/';
  4828. if ($dir[0] == '.')
  4829. $dir = substr($dir, 1);
  4830. if ($dir[0] != '/')
  4831. $dir = '/' . $dir;
  4832. if ($dir[strlen($dir) - 1] != '/')
  4833. $dir .= '/';
  4834. $filepath = api_get_path(SYS_COURSE_PATH) . $_course['path'] . '/document' . $dir;
  4835. if (!is_dir($filepath)) {
  4836. $filepath = api_get_path(SYS_COURSE_PATH) . $_course['path'] . '/document/';
  4837. $dir = '/';
  4838. }
  4839. $table_doc = Database :: get_course_table(TABLE_DOCUMENT);
  4840. if (isset($_POST['path']) && !empty($_POST['path'])) {
  4841. $document_id = intval($_POST['path']);
  4842. $sql = "SELECT path FROM " . $table_doc . " WHERE id = " . $document_id;
  4843. $res = Database::query($sql);
  4844. $row = Database :: fetch_array($res);
  4845. $content = stripslashes($_POST['content_lp']);
  4846. $file = $filepath . $row['path'];
  4847. if ($fp = @ fopen($file, 'w')) {
  4848. $content = text_filter($content);
  4849. $content = str_replace(api_get_path(WEB_COURSE_PATH), $_configuration['url_append'] . '/courses/', $content);
  4850. // Change the path of mp3 to absolute.
  4851. // The first regexp deals with ../../../ urls.
  4852. $content = preg_replace("|(flashvars=\"file=)(\.+/)+|", "$1" . api_get_path(REL_COURSE_PATH) . $_course['path'] . '/document/', $content);
  4853. // The second regexp deals with audio/ urls.
  4854. $content = preg_replace("|(flashvars=\"file=)([^/]+)/|", "$1" . api_get_path(REL_COURSE_PATH) . $_course['path'] . '/document/$2/', $content);
  4855. fputs($fp, $content);
  4856. fclose($fp);
  4857. $sql_update = "UPDATE " . $table_doc ." SET title='".Database::escape_string($_POST['title'])."' WHERE id = " . $document_id;
  4858. Database::query($sql_update);
  4859. }
  4860. }
  4861. }
  4862. /**
  4863. * Displays the selected item, with a panel for manipulating the item
  4864. * @param int $item_id
  4865. * @param string $msg
  4866. * @return string
  4867. */
  4868. public function display_item($item_id, $iframe = true, $msg = '') {
  4869. global $_course; // It will disappear.
  4870. $return = '';
  4871. if (is_numeric($item_id)) {
  4872. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  4873. $tbl_doc = Database :: get_course_table(TABLE_DOCUMENT);
  4874. $sql = "SELECT lp.* FROM " . $tbl_lp_item . " as lp
  4875. WHERE lp.id = " . Database :: escape_string($item_id);
  4876. $result = Database::query($sql);
  4877. while ($row = Database :: fetch_array($result)) {
  4878. $_SESSION['parent_item_id'] = ($row['item_type'] == 'dokeos_chapter' || $row['item_type'] == 'dokeos_module' || $row['item_type'] == 'dir') ? $item_id : 0;
  4879. // Prevents wrong parent selection for document, see Bug#1251.
  4880. if ($row['item_type'] != 'dokeos_chapter' || $row['item_type'] != 'dokeos_module') {
  4881. $_SESSION['parent_item_id'] = $row['parent_item_id'];
  4882. }
  4883. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4884. $return .= '<div style="padding:10px;">';
  4885. if ($msg != '')
  4886. $return .= $msg;
  4887. $return .= '<p class="lp_title">' . $row['title'] . '</p>';
  4888. //$return .= '<p class="lp_text">' . ((trim($row['description']) == '') ? 'no description' : stripslashes($row['description'])) . '</p>';
  4889. //$return .= '<hr />';
  4890. switch ($row['item_type']) {
  4891. case TOOL_QUIZ:
  4892. if (!empty($row['path'])) {
  4893. require_once api_get_path(SYS_CODE_PATH).'exercice/exercise.class.php';
  4894. $exercise = new Exercise();
  4895. $exercise->read($row['path']);
  4896. // $exercise_url = api_get_path(WEB_CODE_PATH).'exercice/admin.php?exerciseId='.$exercise->id.'&'.api_get_cidReq().'&id_session='.api_get_session_id();
  4897. $return .=$exercise->description.'<br />';
  4898. //$return .=Display::url($exercise_url, $exercise_url).'<br />';*/
  4899. }
  4900. break;
  4901. case TOOL_DOCUMENT:
  4902. $tbl_doc = Database :: get_course_table(TABLE_DOCUMENT);
  4903. $sql_doc = "SELECT path FROM " . $tbl_doc . " WHERE id = " . Database :: escape_string($row['path']);
  4904. $result = Database::query($sql_doc);
  4905. $path_file = Database :: result($result, 0, 0);
  4906. $path_parts = pathinfo($path_file);
  4907. // TODO: Correct the following naive comparisons, also, htm extension is missing.
  4908. if (in_array($path_parts['extension'], array (
  4909. 'html',
  4910. 'txt',
  4911. 'png',
  4912. 'jpg',
  4913. 'JPG',
  4914. 'jpeg',
  4915. 'JPEG',
  4916. 'gif',
  4917. 'swf'
  4918. ))) {
  4919. $return .= $this->display_document($row['path'], true, true);
  4920. }
  4921. break;
  4922. }
  4923. $return .= '</div>';
  4924. }
  4925. }
  4926. return $return;
  4927. }
  4928. /**
  4929. * Shows the needed forms for editing a specific item
  4930. * @param int $item_id
  4931. * @return string
  4932. */
  4933. public function display_edit_item($item_id) {
  4934. global $_course; // It will disappear.
  4935. $course_id = api_get_course_int_id();
  4936. $return = '';
  4937. if (is_numeric($item_id)) {
  4938. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  4939. $sql = "SELECT * FROM $tbl_lp_item WHERE id = " . Database :: escape_string($item_id);
  4940. $res = Database::query($sql);
  4941. $row = Database::fetch_array($res);
  4942. switch ($row['item_type']) {
  4943. case 'dokeos_chapter' :
  4944. case 'dir' :
  4945. case 'asset' :
  4946. case 'sco' :
  4947. if (isset ($_GET['view']) && $_GET['view'] == 'build') {
  4948. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4949. $return .= $this->display_item_form($row['item_type'], get_lang('EditCurrentChapter') . ' :', 'edit', $item_id, $row);
  4950. } else {
  4951. $return .= $this->display_item_small_form($row['item_type'], get_lang('EditCurrentChapter') . ' :', $row);
  4952. }
  4953. break;
  4954. case TOOL_DOCUMENT :
  4955. $tbl_doc = Database :: get_course_table(TABLE_DOCUMENT);
  4956. $sql_step = " SELECT lp.*, doc.path as dir
  4957. FROM " . $tbl_lp_item . " as lp
  4958. LEFT JOIN " . $tbl_doc . " as doc ON doc.id = lp.path
  4959. WHERE lp.c_id = $course_id AND
  4960. doc.c_id = $course_id AND
  4961. lp.id = " . Database :: escape_string($item_id);
  4962. $res_step = Database::query($sql_step);
  4963. $row_step = Database :: fetch_array($res_step);
  4964. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4965. $return .= $this->display_document_form('edit', $item_id, $row_step);
  4966. break;
  4967. case TOOL_LINK :
  4968. $link_id = (string) $row['path'];
  4969. if (ctype_digit($link_id)) {
  4970. $tbl_link = Database :: get_course_table(TABLE_LINK);
  4971. $sql_select = 'SELECT url FROM ' . $tbl_link . ' WHERE id = ' . Database :: escape_string($link_id);
  4972. $res_link = Database::query($sql_select);
  4973. $row_link = Database :: fetch_array($res_link);
  4974. if (is_array($row_link)) {
  4975. $row['url'] = $row_link['url'];
  4976. }
  4977. }
  4978. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4979. $return .= $this->display_link_form('edit', $item_id, $row);
  4980. break;
  4981. case 'dokeos_module' :
  4982. if (isset ($_GET['view']) && $_GET['view'] == 'build') {
  4983. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4984. $return .= $this->display_item_form($row['item_type'], get_lang('EditCurrentModule') . ' :', 'edit', $item_id, $row);
  4985. } else {
  4986. $return .= $this->display_item_small_form($row['item_type'], get_lang('EditCurrentModule') . ' :', $row);
  4987. }
  4988. break;
  4989. case TOOL_QUIZ :
  4990. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4991. $return .= $this->display_quiz_form('edit', $item_id, $row);
  4992. break;
  4993. case TOOL_HOTPOTATOES :
  4994. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4995. $return .= $this->display_hotpotatoes_form('edit', $item_id, $row);
  4996. break;
  4997. case TOOL_STUDENTPUBLICATION :
  4998. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4999. $return .= $this->display_student_publication_form('edit', $item_id, $row);
  5000. break;
  5001. case TOOL_FORUM :
  5002. $return .= $this->display_manipulate($item_id, $row['item_type']);
  5003. $return .= $this->display_forum_form('edit', $item_id, $row);
  5004. break;
  5005. case TOOL_THREAD :
  5006. $return .= $this->display_manipulate($item_id, $row['item_type']);
  5007. $return .= $this->display_thread_form('edit', $item_id, $row);
  5008. break;
  5009. }
  5010. }
  5011. return $return;
  5012. }
  5013. /**
  5014. * Function that displays a list with al the resources that could be added to the learning path
  5015. * @return string
  5016. */
  5017. public function display_resources() {
  5018. global $_course; // TODO: Don't use globals.
  5019. /*$return .= '<div class="sectiontitle">' . get_lang('CreateNewStep') . '</div>';
  5020. $return .= '<div class="sectioncomment"><a href="' . api_get_self() . '?cidReq=' . $_GET['cidReq'] . '&amp;action=add_item&amp;type=' . TOOL_DOCUMENT . '&amp;lp_id=' . $_SESSION['oLP']->lp_id . '">' . '<img title="Nuevo documento" src="../img/new_doc.gif" alt="Nuevo documento"/> ' . get_lang('NewDocument') . '</a></div>';
  5021. $return .= '<div class="sectiontitle">' . get_lang('UseAnExistingResource') . '</div>';*/
  5022. //Get all the docs
  5023. $documents = $this->get_documents();
  5024. //Get all the exercises
  5025. $exercises = $this->get_exercises();
  5026. // Get all the links
  5027. $links = $this->get_links();
  5028. //Get al the student publications
  5029. $works = $this->get_student_publications();
  5030. //Get al the forums
  5031. $forums = $this->get_forums();
  5032. $headers = array( Display::return_icon('folder_document.png', get_lang('Documents'), array(), 64),
  5033. Display::return_icon('quiz.png', get_lang('Quiz'), array(), 64),
  5034. Display::return_icon('links.png', get_lang('Links'), array(), 64),
  5035. Display::return_icon('works.png', get_lang('Works'), array(), 64),
  5036. Display::return_icon('forum.png', get_lang('Forums'), array(), 64),
  5037. );
  5038. echo Display::tabs($headers, array($documents, $exercises, $links, $works, $forums), 'resource_tab');
  5039. return true;
  5040. }
  5041. /**
  5042. * Returns the extension of a document
  5043. * @param string filename
  5044. * @return string Extension (part after the last dot)
  5045. */
  5046. public function get_extension($filename) {
  5047. $explode = explode('.', $filename);
  5048. return $explode[count($explode) - 1];
  5049. }
  5050. /**
  5051. * Displays a document by id
  5052. *
  5053. * @param unknown_type $id
  5054. * @return unknown
  5055. */
  5056. public function display_document($id, $show_title = false, $iframe = true, $edit_link = false) {
  5057. global $_course; // It is temporary.
  5058. $return = '';
  5059. $tbl_doc = Database :: get_course_table(TABLE_DOCUMENT);
  5060. $sql_doc = "SELECT * FROM " . $tbl_doc . "
  5061. WHERE id = " . $id;
  5062. $res_doc = Database::query($sql_doc);
  5063. $row_doc = Database :: fetch_array($res_doc);
  5064. //if ($show_title)
  5065. //$return .= '<p class="lp_title">' . $row_doc['title'] . ($edit_link ? ' [ <a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=add_item&amp;type=' . TOOL_DOCUMENT . '&amp;file=' . $_GET['file'] . '&amp;edit=true&amp;lp_id=' . $_GET['lp_id'] . '">Edit this document</a> ]' : '') . '</p>';
  5066. // TODO: Add a path filter.
  5067. if ($iframe) {
  5068. $return .= '<iframe id="learnpath_preview_frame" frameborder="0" height="400" width="100%" scrolling="auto" src="' . api_get_path(WEB_COURSE_PATH) . $_course['path'] . '/document' . str_replace('%2F', '/', urlencode($row_doc['path'])) . '?' . api_get_cidreq() . '"></iframe>';
  5069. } else {
  5070. $return .= file_get_contents(api_get_path(SYS_COURSE_PATH) . $_course['path'] . '/document' . $row_doc['path']);
  5071. }
  5072. return $return;
  5073. }
  5074. /**
  5075. * Return HTML form to add/edit a quiz
  5076. * @param string Action (add/edit)
  5077. * @param integer Item ID if already exists
  5078. * @param mixed Extra information (quiz ID if integer)
  5079. * @return string HTML form
  5080. */
  5081. public function display_quiz_form($action = 'add', $id = 0, $extra_info = '') {
  5082. global $charset;
  5083. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  5084. $tbl_quiz = Database :: get_course_table(TABLE_QUIZ_TEST);
  5085. if ($id != 0 && is_array($extra_info)) {
  5086. $item_title = $extra_info['title'];
  5087. $item_description = $extra_info['description'];
  5088. } elseif (is_numeric($extra_info)) {
  5089. $sql_quiz = "SELECT title, description FROM " . $tbl_quiz . " WHERE id = " . $extra_info;
  5090. $result = Database::query($sql_quiz);
  5091. $row = Database :: fetch_array($result);
  5092. $item_title = $row['title'];
  5093. $item_description = $row['description'];
  5094. } else {
  5095. $item_title = '';
  5096. $item_description = '';
  5097. }
  5098. $item_title = Security::remove_XSS($item_title);
  5099. $item_description = Security::remove_XSS($item_description);
  5100. $return = ' <div class="row">
  5101. <div class="form_header">';
  5102. if ($id != 0 && is_array($extra_info))
  5103. $parent = $extra_info['parent_item_id'];
  5104. else
  5105. $parent = 0;
  5106. $sql = "SELECT * FROM " . $tbl_lp_item . " WHERE lp_id = " . $this->lp_id;
  5107. $result = Database::query($sql);
  5108. $arrLP = array ();
  5109. while ($row = Database :: fetch_array($result)) {
  5110. $arrLP[] = array (
  5111. 'id' => $row['id'],
  5112. 'item_type' => $row['item_type'],
  5113. 'title' => $row['title'],
  5114. 'path' => $row['path'],
  5115. 'description' => $row['description'],
  5116. 'parent_item_id' => $row['parent_item_id'],
  5117. 'previous_item_id' => $row['previous_item_id'],
  5118. 'next_item_id' => $row['next_item_id'],
  5119. 'display_order' => $row['display_order'],
  5120. 'max_score' => $row['max_score'],
  5121. 'min_score' => $row['min_score'],
  5122. 'mastery_score' => $row['mastery_score'],
  5123. 'prerequisite' => $row['prerequisite'],
  5124. 'max_time_allowed' => $row['max_time_allowed']
  5125. );
  5126. }
  5127. $this->tree_array($arrLP);
  5128. $arrLP = $this->arrMenu;
  5129. unset ($this->arrMenu);
  5130. if ($action == 'add')
  5131. $return .= get_lang('CreateTheExercise') . '&nbsp;:';
  5132. elseif ($action == 'move') $return .= get_lang('MoveTheCurrentExercise') . '&nbsp;:';
  5133. else
  5134. $return .= get_lang('EditCurrentExecice') . '&nbsp;:';
  5135. if (isset ($_GET['edit']) && $_GET['edit'] == 'true') {
  5136. $return .= Display :: return_warning_message('<p class="lp_title">' . get_lang('Warning') . ' !</p>' . get_lang('WarningEditingDocument'));
  5137. }
  5138. $return .= ' </div>
  5139. </div>';
  5140. $return .= '<div class="sectioncomment">';
  5141. $return .= '<form method="POST">';
  5142. $return .= '<table class="lp_form">';
  5143. if ($action != 'move') {
  5144. $return .= '<tr>';
  5145. $return .= '<td class="label"><label for="idTitle">' . get_lang('Title') . '</label></td>';
  5146. $return .= '<td class="input"><input id="idTitle" name="title" size="44" type="text" class="learnpath_item_form" value="' . $item_title . '" /></td>';
  5147. $return .= '</tr>';
  5148. }
  5149. $return .= '<tr>';
  5150. $return .= '<td class="label"><label for="idParent">' . get_lang('Parent') . '</label></td>';
  5151. $return .= '<td class="input">';
  5152. $return .= '<select id="idParent" style="width:100%;" name="parent" onChange="javascript: load_cbo(this.value);" class="learnpath_item_form" size="1">';
  5153. $return .= '<option class="top" value="0">' . $this->name . '</option>';
  5154. $arrHide = array (
  5155. $id
  5156. );
  5157. //$parent_item_id = $_SESSION['parent_item_id'];
  5158. for ($i = 0; $i < count($arrLP); $i++) {
  5159. if ($action != 'add') {
  5160. if (($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide)) {
  5161. $return .= '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . $arrLP[$i]['title'] . '</option>';
  5162. } else {
  5163. $arrHide[] = $arrLP[$i]['id'];
  5164. }
  5165. } else {
  5166. if ($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir')
  5167. $return .= '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . $arrLP[$i]['title'] . '</option>';
  5168. }
  5169. }
  5170. if (is_array($arrLP)) {
  5171. reset($arrLP);
  5172. }
  5173. $return .= '</select>';
  5174. $return .= '</td>';
  5175. $return .= '</tr>';
  5176. $return .= '<tr>';
  5177. $return .= '<td class="label"><label for="previous">' . get_lang('Position') . '</label></td>';
  5178. $return .= '<td class="input">';
  5179. $return .= '<select class="learnpath_item_form" style="width:100%;" id="previous" name="previous" size="1">';
  5180. $return .= '<option class="top" value="0">' . get_lang('FirstPosition') . '</option>';
  5181. for ($i = 0; $i < count($arrLP); $i++) {
  5182. if ($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id) {
  5183. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5184. $selected = 'selected="selected" ';
  5185. elseif ($action == 'add') $selected = 'selected="selected" ';
  5186. else
  5187. $selected = '';
  5188. $return .= '<option ' . $selected . 'value="' . $arrLP[$i]['id'] . '">' . get_lang('After') . ' "' . $arrLP[$i]['title'] . '"</option>';
  5189. }
  5190. }
  5191. $return .= '</select>';
  5192. $return .= '</td>';
  5193. $return .= '</tr>';
  5194. if ($action != 'move') {
  5195. $id_prerequisite = 0;
  5196. if (is_array($arrLP)) {
  5197. foreach ($arrLP as $key => $value) {
  5198. if ($value['id'] == $id) {
  5199. $id_prerequisite = $value['prerequisite'];
  5200. break;
  5201. }
  5202. }
  5203. }
  5204. $arrHide = array ();
  5205. for ($i = 0; $i < count($arrLP); $i++) {
  5206. if ($arrLP[$i]['id'] != $id && $arrLP[$i]['item_type'] != 'dokeos_chapter') {
  5207. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5208. $s_selected_position = $arrLP[$i]['id'];
  5209. elseif ($action == 'add') $s_selected_position = 0;
  5210. $arrHide[$arrLP[$i]['id']]['value'] = $arrLP[$i]['title'];
  5211. }
  5212. }
  5213. /*// Commented the prerequisites, only visible in edit (exercise).
  5214. $return .= '<tr>';
  5215. $return .= '<td class="label"><label for="idPrerequisites">'.get_lang('Prerequisites').'</label></td>';
  5216. $return .= '<td class="input"><select name="prerequisites" id="prerequisites" class="learnpath_item_form"><option value="0">'.get_lang('NoPrerequisites').'</option>';
  5217. foreach($arrHide as $key => $value){
  5218. if($key==$s_selected_position && $action == 'add'){
  5219. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  5220. }
  5221. elseif($key==$id_prerequisite && $action == 'edit'){
  5222. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  5223. }
  5224. else{
  5225. $return .= '<option value="'.$key.'">'.$value['value'].'</option>';
  5226. }
  5227. }
  5228. $return .= "</select></td>";
  5229. */
  5230. $return .= '</tr>';
  5231. /*$return .= '<tr>';
  5232. $return .= '<td class="label"><label for="maxTimeAllowed">' . get_lang('MaxTimeAllowed') . '</label></td>';
  5233. $return .= '<td class="input"><input name="maxTimeAllowed" style="width:98%;" id="maxTimeAllowed" value="' . $extra_info['max_time_allowed'] . '" /></td>';
  5234. // Remove temporarily the test description.
  5235. //$return .= '<td class="label"><label for="idDescription">'.get_lang('Description').' :</label></td>';
  5236. //$return .= '<td class="input"><textarea id="idDescription" name="description" rows="4">' . $item_description . '</textarea></td>';
  5237. $return .= '</tr>'; */
  5238. }
  5239. $return .= '<tr>';
  5240. if ($action == 'add') {
  5241. $return .= '<td>&nbsp;</td><td><button class="save" name="submit_button" type="submit">' . get_lang('AddExercise') . '</button></td>';
  5242. } else {
  5243. $return .= '<td>&nbsp;</td><td><button class="save" name="submit_button" type="submit">' . get_lang('EditCurrentExecice') . '</button></td>';
  5244. }
  5245. $return .= '</tr>';
  5246. $return .= '</table>';
  5247. if ($action == 'move') {
  5248. $return .= '<input name="title" type="hidden" value="' . $item_title . '" />';
  5249. $return .= '<input name="description" type="hidden" value="' . $item_description . '" />';
  5250. }
  5251. if (is_numeric($extra_info)) {
  5252. $return .= '<input name="path" type="hidden" value="' . $extra_info . '" />';
  5253. }
  5254. elseif (is_array($extra_info)) {
  5255. $return .= '<input name="path" type="hidden" value="' . $extra_info['path'] . '" />';
  5256. }
  5257. $return .= '<input name="type" type="hidden" value="' . TOOL_QUIZ . '" />';
  5258. $return .= '<input name="post_time" type="hidden" value="' . time() . '" />';
  5259. $return .= '</form>';
  5260. $return .= '</div>';
  5261. return $return;
  5262. }
  5263. /**
  5264. * Addition of Hotpotatoes tests
  5265. * @param string Action
  5266. * @param integer Internal ID of the item
  5267. * @param mixed Extra information - can be an array with title and description indexes
  5268. * @return string HTML structure to display the hotpotatoes addition formular
  5269. */
  5270. public function display_hotpotatoes_form($action = 'add', $id = 0, $extra_info = '') {
  5271. global $charset;
  5272. $uploadPath = DIR_HOTPOTATOES; //defined in main_api
  5273. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  5274. if ($id != 0 && is_array($extra_info)) {
  5275. $item_title = stripslashes($extra_info['title']);
  5276. $item_description = stripslashes($extra_info['description']);
  5277. } elseif (is_numeric($extra_info)) {
  5278. $TBL_DOCUMENT = Database :: get_course_table(TABLE_DOCUMENT);
  5279. $sql_hot = "SELECT * FROM " . $TBL_DOCUMENT . "
  5280. WHERE path LIKE '" . $uploadPath . "/%/%htm%'
  5281. AND id = " . (int) $extra_info . " ORDER BY id ASC";
  5282. $res_hot = Database::query($sql_hot);
  5283. $row = Database::fetch_array($res_hot);
  5284. $item_title = $row['title'];
  5285. $item_description = $row['description'];
  5286. if (!empty ($row['comment'])) {
  5287. $item_title = $row['comment'];
  5288. }
  5289. } else {
  5290. $item_title = '';
  5291. $item_description = '';
  5292. }
  5293. if ($id != 0 && is_array($extra_info))
  5294. $parent = $extra_info['parent_item_id'];
  5295. else
  5296. $parent = 0;
  5297. $sql = "SELECT * FROM $tbl_lp_item WHERE lp_id = " . $this->lp_id;
  5298. $result = Database::query($sql);
  5299. $arrLP = array ();
  5300. while ($row = Database :: fetch_array($result)) {
  5301. $arrLP[] = array (
  5302. 'id' => $row['id'],
  5303. 'item_type' => $row['item_type'],
  5304. 'title' => $row['title'],
  5305. 'path' => $row['path'],
  5306. 'description' => $row['description'],
  5307. 'parent_item_id' => $row['parent_item_id'],
  5308. 'previous_item_id' => $row['previous_item_id'],
  5309. 'next_item_id' => $row['next_item_id'],
  5310. 'display_order' => $row['display_order'],
  5311. 'max_score' => $row['max_score'],
  5312. 'min_score' => $row['min_score'],
  5313. 'mastery_score' => $row['mastery_score'],
  5314. 'prerequisite' => $row['prerequisite'],
  5315. 'max_time_allowed' => $row['max_time_allowed']
  5316. );
  5317. }
  5318. /*
  5319. $this->tree_array($arrLP);
  5320. $arrLP = $this->arrMenu;
  5321. unset ($this->arrMenu);*/
  5322. if ($action == 'add')
  5323. $return .= '<div class="row"><div class="form_header">' . get_lang('CreateTheExercise') . '&nbsp;:</div></div>';
  5324. elseif ($action == 'move') $return .= '<p class="lp_title">' . get_lang('MoveTheCurrentExercise') . '&nbsp;:</p>';
  5325. else
  5326. //$return .= '<p class="form_header">' . get_lang('EditCurrentExecice') . '&nbsp;:</p>';
  5327. $return .= '<div class="row"><div class="form_header">' . get_lang('EditCurrentExecice') . '&nbsp;:</div></div>';
  5328. if (isset ($_GET['edit']) && $_GET['edit'] == 'true') {
  5329. $return .= Display :: return_warning_message('<p class="lp_title">' . get_lang('Warning') . ' !</p>' . get_lang('WarningEditingDocument'));
  5330. }
  5331. $return .= '<form method="POST">';
  5332. $return .= '<table cellpadding="0" cellspacing="0" class="lp_form">';
  5333. $return .= '<tr>';
  5334. $return .= '<td class="label"><label for="idParent">' . get_lang('Parent') . ' :</label></td>';
  5335. $return .= '<td class="input">';
  5336. $return .= "\t\t\t\t" . '<select id="idParent" name="parent" onChange="javascript: load_cbo(this.value);" size="1">';
  5337. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . $this->name . '</option>';
  5338. $arrHide = array (
  5339. $id
  5340. );
  5341. if (count($arrLP) > 0) {
  5342. for ($i = 0; $i < count($arrLP); $i++) {
  5343. if ($action != 'add') {
  5344. if (($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide)) {
  5345. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . $arrLP[$i]['title'] . '</option>';
  5346. } else {
  5347. $arrHide[] = $arrLP[$i]['id'];
  5348. }
  5349. } else {
  5350. if ($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir')
  5351. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . $arrLP[$i]['title'] . '</option>';
  5352. }
  5353. }
  5354. reset($arrLP);
  5355. }
  5356. $return .= "\t\t\t\t" . '</select>';
  5357. $return .= '</td>';
  5358. $return .= '</tr>';
  5359. $return .= '<tr>';
  5360. $return .= '<td class="label"><label for="previous">' . get_lang('Position') . ' :</label></td>';
  5361. $return .= '<td class="input">';
  5362. $return .= "\t\t\t\t" . '<select id="previous" name="previous" size="1">';
  5363. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . get_lang('FirstPosition') . '</option>';
  5364. for ($i = 0; $i < count($arrLP); $i++) {
  5365. if ($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id) {
  5366. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5367. $selected = 'selected="selected" ';
  5368. elseif ($action == 'add') $selected = 'selected="selected" ';
  5369. else
  5370. $selected = '';
  5371. $return .= "\t\t\t\t\t" . '<option ' . $selected . 'value="' . $arrLP[$i]['id'] . '">' . get_lang('After') . ' "' . $arrLP[$i]['title'] . '"</option>';
  5372. }
  5373. }
  5374. $return .= "\t\t\t\t" . '</select>';
  5375. $return .= '</td>';
  5376. $return .= '</tr>';
  5377. if ($action != 'move') {
  5378. $return .= '<tr>';
  5379. $return .= '<td class="label"><label for="idTitle">' . get_lang('Title') . ' :</label></td>';
  5380. $return .= '<td class="input"><input id="idTitle" name="title" type="text" value="' . $item_title . '" /></td>';
  5381. $return .= '</tr>';
  5382. $id_prerequisite = 0;
  5383. if (is_array($arrLP) && count($arrLP) > 0) {
  5384. foreach ($arrLP as $key => $value) {
  5385. if ($value['id'] == $id) {
  5386. $id_prerequisite = $value['prerequisite'];
  5387. break;
  5388. }
  5389. }
  5390. $arrHide = array ();
  5391. for ($i = 0; $i < count($arrLP); $i++) {
  5392. if ($arrLP[$i]['id'] != $id && $arrLP[$i]['item_type'] != 'dokeos_chapter') {
  5393. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5394. $s_selected_position = $arrLP[$i]['id'];
  5395. elseif ($action == 'add') $s_selected_position = 0;
  5396. $arrHide[$arrLP[$i]['id']]['value'] = $arrLP[$i]['title'];
  5397. }
  5398. }
  5399. }
  5400. //$return .= '<tr>';
  5401. //$return .= '<td class="label"><label for="idPrerequisites">'.get_lang('Prerequisites').' :</label></td>';
  5402. //$return .= '<td class="input"><select name="prerequisites" id="prerequisites"><option value="0">'.get_lang('NoPrerequisites').'</option>';
  5403. /*
  5404. foreach ($arrHide as $key => $value) {
  5405. if ($key == $s_selected_position && $action == 'add') {
  5406. $return .= '<option value="' . $key . '" selected="selected">' . $value['value'] . '</option>';
  5407. }
  5408. elseif ($key == $id_prerequisite && $action == 'edit') {
  5409. $return .= '<option value="' . $key . '" selected="selected">' . $value['value'] . '</option>';
  5410. } else {
  5411. $return .= '<option value="' . $key . '">' . $value['value'] . '</option>';
  5412. }
  5413. }
  5414. */
  5415. //$return .= "</select></td>";
  5416. //$return .= '</tr>';
  5417. //$return .= '<tr>';
  5418. //$return .= '</tr>';
  5419. }
  5420. $return .= '<tr>';
  5421. $return .= '<td>&nbsp; </td><td><button class="save" name="submit_button" action="edit" type="submit">' . get_lang('SaveHotpotatoes') . '</button></td>';
  5422. $return .= '</tr>';
  5423. $return .= '</table>';
  5424. if ($action == 'move') {
  5425. $return .= '<input name="title" type="hidden" value="' . $item_title . '" />';
  5426. $return .= '<input name="description" type="hidden" value="' . $item_description . '" />';
  5427. }
  5428. if (is_numeric($extra_info)) {
  5429. $return .= '<input name="path" type="hidden" value="' . $extra_info . '" />';
  5430. }
  5431. elseif (is_array($extra_info)) {
  5432. $return .= '<input name="path" type="hidden" value="' . $extra_info['path'] . '" />';
  5433. }
  5434. $return .= '<input name="type" type="hidden" value="' . TOOL_HOTPOTATOES . '" />';
  5435. $return .= '<input name="post_time" type="hidden" value="' . time() . '" />';
  5436. $return .= '</form>';
  5437. return $return;
  5438. }
  5439. /**
  5440. * Return the form to display the forum edit/add option
  5441. * @param string Action (add/edit)
  5442. * @param integer ID of the lp_item if already exists
  5443. * @param mixed Forum ID or title
  5444. * @return string HTML form
  5445. */
  5446. public function display_forum_form($action = 'add', $id = 0, $extra_info = '') {
  5447. global $charset;
  5448. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  5449. $tbl_forum = Database :: get_course_table(TABLE_FORUM);
  5450. if ($id != 0 && is_array($extra_info)) {
  5451. $item_title = stripslashes($extra_info['title']);
  5452. }
  5453. elseif (is_numeric($extra_info)) {
  5454. $sql_forum = "
  5455. SELECT
  5456. forum_title as title, forum_comment as comment
  5457. FROM " . $tbl_forum . "
  5458. WHERE forum_id = " . $extra_info;
  5459. $result = Database::query($sql_forum);
  5460. $row = Database :: fetch_array($result);
  5461. $item_title = $row['title'];
  5462. $item_description = $row['comment'];
  5463. } else {
  5464. $item_title = '';
  5465. $item_description = '';
  5466. }
  5467. $return = ' <div class="row">
  5468. <div class="form_header">';
  5469. if ($id != 0 && is_array($extra_info))
  5470. $parent = $extra_info['parent_item_id'];
  5471. else
  5472. $parent = 0;
  5473. $sql = "
  5474. SELECT *
  5475. FROM " . $tbl_lp_item . "
  5476. WHERE
  5477. lp_id = " . $this->lp_id;
  5478. $result = Database::query($sql);
  5479. $arrLP = array ();
  5480. while ($row = Database :: fetch_array($result)) {
  5481. $arrLP[] = array (
  5482. 'id' => $row['id'],
  5483. 'item_type' => $row['item_type'],
  5484. 'title' => $row['title'],
  5485. 'path' => $row['path'],
  5486. 'description' => $row['description'],
  5487. 'parent_item_id' => $row['parent_item_id'],
  5488. 'previous_item_id' => $row['previous_item_id'],
  5489. 'next_item_id' => $row['next_item_id'],
  5490. 'display_order' => $row['display_order'],
  5491. 'max_score' => $row['max_score'],
  5492. 'min_score' => $row['min_score'],
  5493. 'mastery_score' => $row['mastery_score'],
  5494. 'prerequisite' => $row['prerequisite']
  5495. );
  5496. }
  5497. $this->tree_array($arrLP);
  5498. $arrLP = $this->arrMenu;
  5499. unset ($this->arrMenu);
  5500. if ($action == 'add')
  5501. $return .= get_lang('CreateTheForum') . '&nbsp;:';
  5502. elseif ($action == 'move') $return .= get_lang('MoveTheCurrentForum') . '&nbsp;:';
  5503. else
  5504. $return .= get_lang('EditCurrentForum') . '&nbsp;:';
  5505. $return .= ' </div>
  5506. </div>';
  5507. $return .= '<div class="sectioncomment">';
  5508. $return .= '<form method="POST">';
  5509. $return .= '<table class="lp_form">';
  5510. if ($action != 'move') {
  5511. $return .= '<tr>';
  5512. $return .= '<td class="label"><label for="idTitle">' . get_lang('Title') . '</label></td>';
  5513. $return .= '<td class="input"><input id="idTitle" size="44" name="title" type="text" value="' . $item_title . '" class="learnpath_item_form" /></td>';
  5514. $return .= '</tr>';
  5515. }
  5516. $return .= '<tr>';
  5517. $return .= '<td class="label"><label for="idParent">' . get_lang('Parent') . '</label></td>';
  5518. $return .= '<td class="input">';
  5519. $return .= "\t\t\t\t" . '<select id="idParent" style="width:100%;" name="parent" onChange="javascript: load_cbo(this.value);" class="learnpath_item_form" size="1">';
  5520. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . $this->name . '</option>';
  5521. $arrHide = array (
  5522. $id
  5523. );
  5524. //$parent_item_id = $_SESSION['parent_item_id'];
  5525. for ($i = 0; $i < count($arrLP); $i++) {
  5526. if ($action != 'add') {
  5527. if (($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide)) {
  5528. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . $arrLP[$i]['title'] . '</option>';
  5529. } else {
  5530. $arrHide[] = $arrLP[$i]['id'];
  5531. }
  5532. } else {
  5533. if ($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir')
  5534. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . $arrLP[$i]['title'] . '</option>';
  5535. }
  5536. }
  5537. if (is_array($arrLP)) {
  5538. reset($arrLP);
  5539. }
  5540. $return .= "\t\t\t\t" . '</select>';
  5541. $return .= '</td>';
  5542. $return .= '</tr>';
  5543. $return .= '<tr>';
  5544. $return .= '<td class="label"><label for="previous">' . get_lang('Position') . '</label></td>';
  5545. $return .= '<td class="input">';
  5546. $return .= "\t\t\t\t" . '<select id="previous" name="previous" style="width:100%;" size="1" class="learnpath_item_form">';
  5547. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . get_lang('FirstPosition') . '</option>';
  5548. for ($i = 0; $i < count($arrLP); $i++) {
  5549. if ($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id) {
  5550. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5551. $selected = 'selected="selected" ';
  5552. elseif ($action == 'add') $selected = 'selected="selected" ';
  5553. else
  5554. $selected = '';
  5555. $return .= "\t\t\t\t\t" . '<option ' . $selected . 'value="' . $arrLP[$i]['id'] . '">' . get_lang('After') . ' "' . $arrLP[$i]['title'] . '"</option>';
  5556. }
  5557. }
  5558. $return .= "\t\t\t\t" . '</select>';
  5559. $return .= '</td>';
  5560. $return .= '</tr>';
  5561. if ($action != 'move') {
  5562. $return .= '<tr>';
  5563. $return .= '</tr>';
  5564. $id_prerequisite = 0;
  5565. if (is_array($arrLP)) {
  5566. foreach ($arrLP as $key => $value) {
  5567. if ($value['id'] == $id) {
  5568. $id_prerequisite = $value['prerequisite'];
  5569. break;
  5570. }
  5571. }
  5572. }
  5573. $arrHide = array ();
  5574. for ($i = 0; $i < count($arrLP); $i++) {
  5575. if ($arrLP[$i]['id'] != $id && $arrLP[$i]['item_type'] != 'dokeos_chapter') {
  5576. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5577. $s_selected_position = $arrLP[$i]['id'];
  5578. elseif ($action == 'add') $s_selected_position = 0;
  5579. $arrHide[$arrLP[$i]['id']]['value'] = $arrLP[$i]['title'];
  5580. }
  5581. }
  5582. $return .= '</tr>';
  5583. }
  5584. $return .= '<tr>';
  5585. if ($action == 'add') {
  5586. $return .= '<td>&nbsp;</td><td><button class="save" name="submit_button" type="submit"> ' . get_lang('AddForumToCourse') . ' </button></td>';
  5587. } else {
  5588. $return .= '<td>&nbsp;</td><td><button class="save" name="submit_button" type="submit"> ' . get_lang('EditCurrentForum') . ' </button></td>';
  5589. }
  5590. $return .= '</tr>';
  5591. $return .= '</table>';
  5592. if ($action == 'move') {
  5593. $return .= '<input name="title" type="hidden" value="' . $item_title . '" />';
  5594. $return .= '<input name="description" type="hidden" value="' . $item_description . '" />';
  5595. }
  5596. if (is_numeric($extra_info)) {
  5597. $return .= '<input name="path" type="hidden" value="' . $extra_info . '" />';
  5598. }
  5599. elseif (is_array($extra_info)) {
  5600. $return .= '<input name="path" type="hidden" value="' . $extra_info['path'] . '" />';
  5601. }
  5602. $return .= '<input name="type" type="hidden" value="' . TOOL_FORUM . '" />';
  5603. $return .= '<input name="post_time" type="hidden" value="' . time() . '" />';
  5604. $return .= '</form>';
  5605. $return .= '</div>';
  5606. return $return;
  5607. }
  5608. /**
  5609. * Return HTML form to add/edit forum threads
  5610. * @param string Action (add/edit)
  5611. * @param integer Item ID if already exists in learning path
  5612. * @param mixed Extra information (thread ID if integer)
  5613. * @return string HTML form
  5614. */
  5615. public function display_thread_form($action = 'add', $id = 0, $extra_info = '') {
  5616. global $charset;
  5617. echo '
  5618. <style>
  5619. div.row div.label {
  5620. width:110px;
  5621. }
  5622. div.row div.formw {
  5623. width: 82%;
  5624. }
  5625. </style>';
  5626. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  5627. $tbl_forum = Database :: get_course_table(TABLE_FORUM_THREAD);
  5628. if ($id != 0 && is_array($extra_info)) {
  5629. $item_title = stripslashes($extra_info['title']);
  5630. }
  5631. elseif (is_numeric($extra_info)) {
  5632. $sql_forum = "
  5633. SELECT
  5634. thread_title as title
  5635. FROM " . $tbl_forum . "
  5636. WHERE thread_id = " . $extra_info;
  5637. $result = Database::query($sql_forum);
  5638. $row = Database :: fetch_array($result);
  5639. $item_title = $row['title'];
  5640. $item_description = '';
  5641. } else {
  5642. $item_title = '';
  5643. $item_description = '';
  5644. }
  5645. $return = '<div style="margin:3px 12px;">';
  5646. if ($id != 0 && is_array($extra_info))
  5647. $parent = $extra_info['parent_item_id'];
  5648. else
  5649. $parent = 0;
  5650. $sql = "
  5651. SELECT *
  5652. FROM " . $tbl_lp_item . "
  5653. WHERE
  5654. lp_id = " . $this->lp_id;
  5655. $result = Database::query($sql);
  5656. $arrLP = array ();
  5657. while ($row = Database :: fetch_array($result)) {
  5658. $arrLP[] = array (
  5659. 'id' => $row['id'],
  5660. 'item_type' => $row['item_type'],
  5661. 'title' => $row['title'],
  5662. 'path' => $row['path'],
  5663. 'description' => $row['description'],
  5664. 'parent_item_id' => $row['parent_item_id'],
  5665. 'previous_item_id' => $row['previous_item_id'],
  5666. 'next_item_id' => $row['next_item_id'],
  5667. 'display_order' => $row['display_order'],
  5668. 'max_score' => $row['max_score'],
  5669. 'min_score' => $row['min_score'],
  5670. 'mastery_score' => $row['mastery_score'],
  5671. 'prerequisite' => $row['prerequisite']
  5672. );
  5673. }
  5674. $this->tree_array($arrLP);
  5675. $arrLP = $this->arrMenu;
  5676. unset ($this->arrMenu);
  5677. if ($action == 'add')
  5678. $return .= '<p class="lp_title">' . get_lang('CreateTheForum') . '&nbsp;:</p>';
  5679. elseif ($action == 'move') $return .= '<p class="lp_title">' . get_lang('MoveTheCurrentForum') . '&nbsp;:</p>';
  5680. else
  5681. $return .= '<p class="lp_title">' . get_lang('EditCurrentForum') . '&nbsp;:</p>';
  5682. $return .= '<form method="POST">';
  5683. $return .= '<table cellpadding="0" cellspacing="0" class="lp_form">';
  5684. $return .= '<tr>';
  5685. $return .= '<td class="label"><label for="idParent">' . get_lang('Parent') . '&nbsp;:</label></td>';
  5686. $return .= '<td class="input">';
  5687. $return .= "\t\t\t\t" . '<select id="idParent" name="parent" onChange="javascript: load_cbo(this.value);" size="1">';
  5688. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . $this->name . '</option>';
  5689. $arrHide = array (
  5690. $id
  5691. );
  5692. for ($i = 0; $i < count($arrLP); $i++) {
  5693. if ($action != 'add') {
  5694. if (($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide)) {
  5695. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . $arrLP[$i]['title'] . '</option>';
  5696. } else {
  5697. $arrHide[] = $arrLP[$i]['id'];
  5698. }
  5699. } else {
  5700. if ($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir')
  5701. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . $arrLP[$i]['title'] . '</option>';
  5702. }
  5703. }
  5704. if ($arrLP != null) {
  5705. reset($arrLP);
  5706. }
  5707. $return .= "\t\t\t\t" . '</select>';
  5708. $return .= '</td>';
  5709. $return .= '</tr>';
  5710. $return .= '<tr>';
  5711. $return .= '<td class="label"><label for="previous">' . get_lang('Position') . '&nbsp;:</label></td>';
  5712. $return .= '<td class="input">';
  5713. $return .= "\t\t\t\t" . '<select id="previous" name="previous" size="1">';
  5714. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . get_lang('FirstPosition') . '</option>';
  5715. for ($i = 0; $i < count($arrLP); $i++) {
  5716. if ($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id) {
  5717. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5718. $selected = 'selected="selected" ';
  5719. elseif ($action == 'add') $selected = 'selected="selected" ';
  5720. else
  5721. $selected = '';
  5722. $return .= "\t\t\t\t\t" . '<option ' . $selected . 'value="' . $arrLP[$i]['id'] . '">' . get_lang('After') . ' "' . $arrLP[$i]['title'] . '"</option>';
  5723. }
  5724. }
  5725. $return .= "\t\t\t\t" . '</select>';
  5726. $return .= '</td>';
  5727. $return .= '</tr>';
  5728. if ($action != 'move') {
  5729. $return .= '<tr>';
  5730. $return .= '<td class="label"><label for="idTitle">' . get_lang('Title') . '&nbsp;:</label></td>';
  5731. $return .= '<td class="input"><input id="idTitle" name="title" type="text" value="' . $item_title . '" /></td>';
  5732. $return .= '</tr>';
  5733. $return .= '<tr>';
  5734. $return .= '</tr>';
  5735. $id_prerequisite = 0;
  5736. if ($arrLP != null) {
  5737. foreach ($arrLP as $key => $value) {
  5738. if ($value['id'] == $id) {
  5739. $id_prerequisite = $value['prerequisite'];
  5740. break;
  5741. }
  5742. }
  5743. }
  5744. $arrHide = array();
  5745. for ($i = 0; $i < count($arrLP); $i++) {
  5746. if ($arrLP[$i]['id'] != $id && $arrLP[$i]['item_type'] != 'dokeos_chapter') {
  5747. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5748. $s_selected_position = $arrLP[$i]['id'];
  5749. elseif ($action == 'add') $s_selected_position = 0;
  5750. $arrHide[$arrLP[$i]['id']]['value'] = $arrLP[$i]['title'];
  5751. }
  5752. }
  5753. $return .= '<tr>';
  5754. $return .= '<td class="label"><label for="idPrerequisites">' . get_lang('Prerequisites') . '&nbsp;:</label></td>';
  5755. $return .= '<td class="input"><select name="prerequisites" id="prerequisites"><option value="0">' . get_lang('NoPrerequisites') . '</option>';
  5756. foreach ($arrHide as $key => $value) {
  5757. if ($key == $s_selected_position && $action == 'add') {
  5758. $return .= '<option value="' . $key . '" selected="selected">' . $value['value'] . '</option>';
  5759. }
  5760. elseif ($key == $id_prerequisite && $action == 'edit') {
  5761. $return .= '<option value="' . $key . '" selected="selected">' . $value['value'] . '</option>';
  5762. } else {
  5763. $return .= '<option value="' . $key . '">' . $value['value'] . '</option>';
  5764. }
  5765. }
  5766. $return .= "</select></td>";
  5767. $return .= '</tr>';
  5768. }
  5769. $return .= '<tr>';
  5770. $return .= '<td colspan="2">
  5771. <button class="save" name="submit_button" type="submit" value="'.get_lang('Ok').'" />'.get_lang('Ok').'</button></td>';
  5772. $return .= '</tr>';
  5773. $return .= '</table>';
  5774. if ($action == 'move') {
  5775. $return .= '<input name="title" type="hidden" value="' . $item_title . '" />';
  5776. $return .= '<input name="description" type="hidden" value="' . $item_description . '" />';
  5777. }
  5778. if (is_numeric($extra_info)) {
  5779. $return .= '<input name="path" type="hidden" value="' . $extra_info . '" />';
  5780. }
  5781. elseif (is_array($extra_info)) {
  5782. $return .= '<input name="path" type="hidden" value="' . $extra_info['path'] . '" />';
  5783. }
  5784. $return .= '<input name="type" type="hidden" value="' . TOOL_THREAD . '" />';
  5785. $return .= '<input name="post_time" type="hidden" value="' . time() . '" />';
  5786. $return .= '</form>';
  5787. $return .= '</div>';
  5788. return $return;
  5789. }
  5790. /**
  5791. * Return the HTML form to display an item (generally a section/module item)
  5792. * @param string Item type (module/dokeos_module)
  5793. * @param string Title (optional, only when creating)
  5794. * @param string Action ('add'/'edit')
  5795. * @param integer lp_item ID
  5796. * @param mixed Extra info
  5797. * @return string HTML form
  5798. */
  5799. public function display_item_form($item_type, $title = '', $action = 'add', $id = 0, $extra_info = 'new') {
  5800. global $_course;
  5801. global $charset;
  5802. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  5803. if ($id != 0 && is_array($extra_info)) {
  5804. $item_title = $extra_info['title'];
  5805. $item_description = $extra_info['description'];
  5806. $item_path = api_get_path(WEB_COURSE_PATH) . $_course['path'] . '/scorm/' . $this->path . '/' . stripslashes($extra_info['path']);
  5807. $item_path_fck = '/scorm/' . $this->path . '/' . stripslashes($extra_info['path']);
  5808. } else {
  5809. $item_title = '';
  5810. $item_description = '';
  5811. $item_path_fck = '';
  5812. }
  5813. $return = '<div class="row">
  5814. <div class="form_header">';
  5815. if ($id != 0 && is_array($extra_info))
  5816. $parent = $extra_info['parent_item_id'];
  5817. else
  5818. $parent = 0;
  5819. $id = intval($id);
  5820. $sql = "SELECT * FROM " . $tbl_lp_item . "
  5821. WHERE lp_id = " . $this->lp_id . " AND id != $id";
  5822. if ($item_type == 'module')
  5823. $sql .= " AND parent_item_id = 0";
  5824. $result = Database::query($sql);
  5825. $arrLP = array ();
  5826. while ($row = Database :: fetch_array($result)) {
  5827. $arrLP[] = array (
  5828. 'id' => $row['id'],
  5829. 'item_type' => $row['item_type'],
  5830. 'title' => $row['title'],
  5831. 'path' => $row['path'],
  5832. 'description' => $row['description'],
  5833. 'parent_item_id' => $row['parent_item_id'],
  5834. 'previous_item_id' => $row['previous_item_id'],
  5835. 'next_item_id' => $row['next_item_id'],
  5836. 'max_score' => $row['max_score'],
  5837. 'min_score' => $row['min_score'],
  5838. 'mastery_score' => $row['mastery_score'],
  5839. 'prerequisite' => $row['prerequisite'],
  5840. 'display_order' => $row['display_order']
  5841. );
  5842. }
  5843. $this->tree_array($arrLP);
  5844. $arrLP = $this->arrMenu;
  5845. unset ($this->arrMenu);
  5846. $return .= $title;
  5847. $return .= '</div>
  5848. </div>';
  5849. require_once api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php';
  5850. $form = new FormValidator('form', 'POST', api_get_self() . '?' . $_SERVER['QUERY_STRING']);
  5851. $defaults['title'] = api_html_entity_decode($item_title, ENT_QUOTES, $charset);
  5852. $defaults['description'] = $item_description;
  5853. $form->addElement('html', $return);
  5854. //$arrHide = array($id);
  5855. $arrHide[0]['value'] = Security :: remove_XSS($this->name);
  5856. $arrHide[0]['padding'] = 3;
  5857. $charset = api_get_system_encoding();
  5858. if ($item_type != 'module' && $item_type != 'dokeos_module') {
  5859. for ($i = 0; $i < count($arrLP); $i++) {
  5860. if ($action != 'add') {
  5861. if (($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide)) {
  5862. $arrHide[$arrLP[$i]['id']]['value'] = $arrLP[$i]['title'];
  5863. $arrHide[$arrLP[$i]['id']]['padding'] = 3 + $arrLP[$i]['depth'] * 10;
  5864. if ($parent == $arrLP[$i]['id']) {
  5865. $s_selected_parent = $arrHide[$arrLP[$i]['id']];
  5866. }
  5867. }
  5868. } else {
  5869. if ($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') {
  5870. $arrHide[$arrLP[$i]['id']]['value'] = $arrLP[$i]['title'];
  5871. $arrHide[$arrLP[$i]['id']]['padding'] = 3 + $arrLP[$i]['depth'] * 10;
  5872. if ($parent == $arrLP[$i]['id']) {
  5873. $s_selected_parent = $arrHide[$arrLP[$i]['id']];
  5874. }
  5875. }
  5876. }
  5877. }
  5878. if ($action != 'move') {
  5879. $form->addElement('text', 'title', get_lang('Title'), 'id="idTitle" class="learnpath_chapter_form" size="40%"');
  5880. $form->applyFilter('title', 'html_filter');
  5881. $form->addRule('title', '<div class="required">' . get_lang('ThisFieldIsRequired'), 'required');
  5882. //$form->addElement('textarea', 'description', get_lang('Description').' :', 'id="idDescription"');
  5883. } else {
  5884. $form->addElement('hidden', 'title');
  5885. }
  5886. $parent_select = & $form->addElement('select', 'parent', get_lang('Parent'), '', 'class="learnpath_chapter_form" style="width:37%;" id="idParent" onchange="javascript: load_cbo(this.value);"');
  5887. foreach ($arrHide as $key => $value) {
  5888. $parent_select->addOption($value['value'], $key, 'style="padding-left:' . $value['padding'] . 'px;"');
  5889. }
  5890. if (!empty($s_selected_parent)) {
  5891. $parent_select->setSelected($s_selected_parent);
  5892. }
  5893. }
  5894. if (is_array($arrLP)) {
  5895. reset($arrLP);
  5896. }
  5897. $arrHide = array ();
  5898. // POSITION
  5899. for ($i = 0; $i < count($arrLP); $i++) {
  5900. if ($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id) {
  5901. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5902. $s_selected_position = $arrLP[$i]['id'];
  5903. elseif ($action == 'add') $s_selected_position = $arrLP[$i]['id'];
  5904. $arrHide[$arrLP[$i]['id']]['value'] = get_lang('After') . ' "' . $arrLP[$i]['title'] . '"';
  5905. }
  5906. }
  5907. $position = & $form->addElement('select', 'previous', get_lang('Position'), '', 'id="previous" class="learnpath_chapter_form" style="width:37%;"');
  5908. $padding = isset($value['padding']) ? $value['padding'] : 0;
  5909. $position->addOption(get_lang('FirstPosition'), 0, 'style="padding-left:' . $padding . 'px;"');
  5910. foreach ($arrHide as $key => $value) {
  5911. $position->addOption($value['value'] . '"', $key, 'style="padding-left:' . $padding . 'px;"');
  5912. }
  5913. if (!empty ($s_selected_position)) {
  5914. $position->setSelected($s_selected_position);
  5915. }
  5916. if (is_array($arrLP)) {
  5917. reset($arrLP);
  5918. }
  5919. $form->addElement('style_submit_button', 'submit_button', get_lang('SaveSection'), 'class="save"');
  5920. if ($item_type == 'module' || $item_type == 'dokeos_module') {
  5921. $form->addElement('hidden', 'parent', '0');
  5922. }
  5923. $extension = null;
  5924. if (!empty($item_path)) {
  5925. $extension = pathinfo($item_path, PATHINFO_EXTENSION);
  5926. }
  5927. if (($item_type == 'asset' || $item_type == 'sco') && ($extension == 'html' || $extension == 'htm')) {
  5928. if ($item_type == 'sco') {
  5929. $form->addElement('html', '<script type="text/javascript">alert("' . get_lang('WarningWhenEditingScorm') . '")</script>');
  5930. }
  5931. $renderer = $form->defaultRenderer();
  5932. $renderer->setElementTemplate('<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{label}<br />{element}', 'content_lp');
  5933. $relative_prefix = '';
  5934. $editor_config = array( 'ToolbarSet' => 'LearningPathDocuments',
  5935. 'Width' => '100%',
  5936. 'Height' => '500',
  5937. 'FullPage' => true,
  5938. 'CreateDocumentDir' => $relative_prefix,
  5939. 'CreateDocumentWebDir' => api_get_path(WEB_COURSE_PATH) . api_get_course_path().'/scorm/',
  5940. 'BaseHref' => api_get_path(WEB_COURSE_PATH) . api_get_course_path().$item_path_fck
  5941. );
  5942. $form->addElement('html_editor', 'content_lp', '', null, $editor_config);
  5943. $defaults['content_lp'] = file_get_contents($item_path);
  5944. }
  5945. $form->addElement('hidden', 'type', 'dokeos_' . $item_type);
  5946. $form->addElement('hidden', 'post_time', time());
  5947. $form->setDefaults($defaults);
  5948. return $form->return_form();
  5949. }
  5950. /**
  5951. * Returns the form to update or create a document
  5952. * @param string Action (add/edit)
  5953. * @param integer ID of the lp_item (if already exists)
  5954. * @param mixed Integer if document ID, string if info ('new')
  5955. * @return string HTML form
  5956. */
  5957. public function display_document_form($action = 'add', $id = 0, $extra_info = 'new') {
  5958. global $charset;
  5959. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  5960. $tbl_doc = Database :: get_course_table(TABLE_DOCUMENT);
  5961. $path_parts = pathinfo($extra_info['dir']);
  5962. $no_display_edit_textarea = false;
  5963. //If action==edit document
  5964. //We don't display the document form if it's not an editable document (html or txt file)
  5965. if ($action == "edit") {
  5966. if (is_array($extra_info)) {
  5967. if ($path_parts['extension'] != "txt" && $path_parts['extension'] != "html") {
  5968. $no_display_edit_textarea = true;
  5969. }
  5970. }
  5971. }
  5972. $no_display_add = false;
  5973. // If action==add an existing document
  5974. // We don't display the document form if it's not an editable document (html or txt file).
  5975. if ($action == "add") {
  5976. if (is_numeric($extra_info)) {
  5977. $sql_doc = "SELECT path FROM " . $tbl_doc . "WHERE id = " . Database :: escape_string($extra_info);
  5978. $result = Database::query($sql_doc);
  5979. $path_file = Database :: result($result, 0, 0);
  5980. $path_parts = pathinfo($path_file);
  5981. if ($path_parts['extension'] != "txt" && $path_parts['extension'] != "html") {
  5982. $no_display_add = true;
  5983. }
  5984. }
  5985. }
  5986. if ($id != 0 && is_array($extra_info)) {
  5987. $item_title = stripslashes($extra_info['title']);
  5988. $item_description = stripslashes($extra_info['description']);
  5989. $item_terms = stripslashes($extra_info['terms']);
  5990. if (empty ($item_title)) {
  5991. $path_parts = pathinfo($extra_info['path']);
  5992. $item_title = stripslashes($path_parts['filename']);
  5993. }
  5994. } elseif (is_numeric($extra_info)) {
  5995. $sql_doc = "SELECT path, title FROM " . $tbl_doc . "
  5996. WHERE id = " . Database :: escape_string($extra_info);
  5997. $result = Database::query($sql_doc);
  5998. $row = Database::fetch_array($result);
  5999. $explode = explode('.', $row['title']);
  6000. if (count($explode) > 1) {
  6001. for ($i = 0; $i < count($explode) - 1; $i++)
  6002. $item_title .= $explode[$i];
  6003. } else {
  6004. $item_title = $row['title'];
  6005. }
  6006. $item_title = str_replace('_', ' ', $item_title);
  6007. if (empty ($item_title)) {
  6008. $path_parts = pathinfo($row['path']);
  6009. $item_title = stripslashes($path_parts['filename']);
  6010. }
  6011. } else {
  6012. $item_title = '';
  6013. $item_description = '';
  6014. }
  6015. $return = '<div class="row">
  6016. <div class="form_header">';
  6017. if ($id != 0 && is_array($extra_info))
  6018. $parent = $extra_info['parent_item_id'];
  6019. else
  6020. $parent = 0;
  6021. $sql = "SELECT * FROM " . $tbl_lp_item . "
  6022. WHERE lp_id = " . $this->lp_id;
  6023. $result = Database::query($sql);
  6024. $arrLP = array ();
  6025. while ($row = Database :: fetch_array($result)) {
  6026. $arrLP[] = array (
  6027. 'id' => $row['id'],
  6028. 'item_type' => $row['item_type'],
  6029. 'title' => $row['title'],
  6030. 'path' => $row['path'],
  6031. 'description' => $row['description'],
  6032. 'parent_item_id' => $row['parent_item_id'],
  6033. 'previous_item_id' => $row['previous_item_id'],
  6034. 'next_item_id' => $row['next_item_id'],
  6035. 'display_order' => $row['display_order'],
  6036. 'max_score' => $row['max_score'],
  6037. 'min_score' => $row['min_score'],
  6038. 'mastery_score' => $row['mastery_score'],
  6039. 'prerequisite' => $row['prerequisite']
  6040. );
  6041. }
  6042. $this->tree_array($arrLP);
  6043. $arrLP = $this->arrMenu;
  6044. unset ($this->arrMenu);
  6045. if ($action == 'add') {
  6046. $return .= get_lang('CreateTheDocument');
  6047. } elseif ($action == 'move') {
  6048. $return .= get_lang('MoveTheCurrentDocument');
  6049. } else {
  6050. $return .= get_lang('EditTheCurrentDocument');
  6051. }
  6052. $return .= '</div>
  6053. </div>';
  6054. if (isset ($_GET['edit']) && $_GET['edit'] == 'true') {
  6055. $return .= Display :: return_warning_message('<strong>' . get_lang('Warning') . ' !</strong><br />' . get_lang('WarningEditingDocument'), false);
  6056. }
  6057. require_once api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php';
  6058. $form = new FormValidator('form', 'POST', api_get_self() . '?' . $_SERVER['QUERY_STRING'], '', 'enctype="multipart/form-data"');
  6059. $defaults['title'] = Security :: remove_XSS($item_title);
  6060. if (empty($item_title)) {
  6061. $defaults['title'] = Security::remove_XSS($item_title);
  6062. }
  6063. $defaults['description'] = $item_description;
  6064. $form->addElement('html', $return);
  6065. if ($action != 'move') {
  6066. $form->addElement('text', 'title', get_lang('Title'), 'id="idTitle" class="learnpath_item_form" size=44%');
  6067. $form->applyFilter('title', 'html_filter');
  6068. }
  6069. //$arrHide = array($id);
  6070. $arrHide[0]['value'] = $this->name;
  6071. $arrHide[0]['padding'] = 3;
  6072. for ($i = 0; $i < count($arrLP); $i++) {
  6073. if ($action != 'add') {
  6074. if (($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide)) {
  6075. $arrHide[$arrLP[$i]['id']]['value'] = $arrLP[$i]['title'];
  6076. $arrHide[$arrLP[$i]['id']]['padding'] = 3 + $arrLP[$i]['depth'] * 10;
  6077. if ($parent == $arrLP[$i]['id']) {
  6078. $s_selected_parent = $arrHide[$arrLP[$i]['id']];
  6079. }
  6080. }
  6081. } else {
  6082. if ($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') {
  6083. $arrHide[$arrLP[$i]['id']]['value'] = $arrLP[$i]['title'];
  6084. $arrHide[$arrLP[$i]['id']]['padding'] = 3 + $arrLP[$i]['depth'] * 10;
  6085. if ($parent == $arrLP[$i]['id']) {
  6086. $s_selected_parent = $arrHide[$arrLP[$i]['id']];
  6087. }
  6088. }
  6089. }
  6090. }
  6091. $parent_select = & $form->addElement('select', 'parent', get_lang('Parent'), '', 'class="learnpath_item_form" id="idParent" style="width:40%;" onchange="javascript: load_cbo(this.value);"');
  6092. $my_count=0;
  6093. foreach ($arrHide as $key => $value) {
  6094. if ($my_count!=0) {
  6095. // The LP name is also the first section and is not in the same charset like the other sections.
  6096. $value['value'] = Security :: remove_XSS($value['value']);
  6097. $parent_select->addOption($value['value'], $key, 'style="padding-left:' . $value['padding'] . 'px;"');
  6098. } else {
  6099. $value['value'] = Security :: remove_XSS($value['value']);
  6100. $parent_select->addOption($value['value'], $key, 'style="padding-left:' . $value['padding'] . 'px;"');
  6101. }
  6102. $my_count++;
  6103. }
  6104. if (!empty($id)) {
  6105. $parent_select->setSelected($parent);
  6106. } else {
  6107. $parent_item_id = $_SESSION['parent_item_id'];
  6108. $parent_select->setSelected($parent_item_id);
  6109. }
  6110. if (is_array($arrLP)) {
  6111. reset($arrLP);
  6112. }
  6113. $arrHide = array ();
  6114. //POSITION
  6115. for ($i = 0; $i < count($arrLP); $i++) {
  6116. if ($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id) {
  6117. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  6118. $s_selected_position = $arrLP[$i]['id'];
  6119. elseif ($action == 'add') $s_selected_position = $arrLP[$i]['id'];
  6120. $arrHide[$arrLP[$i]['id']]['value'] = get_lang('After') . ' "' . $arrLP[$i]['title'] . '"';
  6121. }
  6122. }
  6123. $position = & $form->addElement('select', 'previous', get_lang('Position'), '', 'id="previous" class="learnpath_item_form" style="width:40%;"');
  6124. $position->addOption(get_lang('FirstPosition'), 0);
  6125. foreach ($arrHide as $key => $value) {
  6126. $padding = isset($value['padding']) ? $value['padding']: 0;
  6127. $position->addOption($value['value'], $key, 'style="padding-left:' . $padding . 'px;"');
  6128. }
  6129. $position->setSelected($s_selected_position);
  6130. if (is_array($arrLP)) {
  6131. reset($arrLP);
  6132. }
  6133. if ($action != 'move') {
  6134. $id_prerequisite = 0;
  6135. if (is_array($arrLP)) {
  6136. foreach ($arrLP as $key => $value) {
  6137. if ($value['id'] == $id) {
  6138. $id_prerequisite = $value['prerequisite'];
  6139. break;
  6140. }
  6141. }
  6142. }
  6143. $arrHide = array ();
  6144. for ($i = 0; $i < count($arrLP); $i++) {
  6145. if ($arrLP[$i]['id'] != $id && $arrLP[$i]['item_type'] != 'dokeos_chapter') {
  6146. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  6147. $s_selected_position = $arrLP[$i]['id'];
  6148. elseif ($action == 'add') $s_selected_position = $arrLP[$i]['id'];
  6149. $arrHide[$arrLP[$i]['id']]['value'] = $arrLP[$i]['title'];
  6150. }
  6151. }
  6152. if (!$no_display_add) {
  6153. if (($extra_info == 'new' || $extra_info['item_type'] == TOOL_DOCUMENT || $_GET['edit'] == 'true')) {
  6154. if (isset ($_POST['content']))
  6155. $content = stripslashes($_POST['content']);
  6156. elseif (is_array($extra_info)) {
  6157. //If it's an html document or a text file
  6158. if (!$no_display_edit_textarea) {
  6159. $content = $this->display_document($extra_info['path'], false, false);
  6160. }
  6161. } elseif (is_numeric($extra_info))
  6162. $content = $this->display_document($extra_info, false, false);
  6163. else
  6164. $content = '';
  6165. if (!$no_display_edit_textarea) {
  6166. // We need to calculate here some specific settings for the online editor.
  6167. // The calculated settings work for documents in the Documents tool
  6168. // (on the root or in subfolders).
  6169. // For documents in native scorm packages it is unclear whether the
  6170. // online editor should be activated or not.
  6171. // A new document, it is in the root of the repository.
  6172. $relative_path = '';
  6173. $relative_prefix = '';
  6174. if (is_array($extra_info) && $extra_info != 'new') {
  6175. // The document already exists. Whe have to determine its relative path towards the repository root.
  6176. $relative_path = explode('/', $extra_info['dir']);
  6177. $cnt = count($relative_path) - 2;
  6178. if ($cnt < 0) {
  6179. $cnt = 0;
  6180. }
  6181. $relative_prefix = str_repeat('../', $cnt);
  6182. $relative_path = array_slice($relative_path, 1, $cnt);
  6183. $relative_path = implode('/', $relative_path);
  6184. if (strlen($relative_path) > 0) {
  6185. $relative_path = $relative_path . '/';
  6186. }
  6187. } else {
  6188. global $_course;
  6189. $result = $this->generate_lp_folder($_course, '');
  6190. $relative_path = api_substr($result['dir'], 1, strlen($result['dir']));
  6191. $relative_prefix = '../../';
  6192. }
  6193. $editor_config = array( 'ToolbarSet' => 'LearningPathDocuments',
  6194. 'Width' => '100%',
  6195. 'Height' => '500',
  6196. 'FullPage' => true,
  6197. 'CreateDocumentDir' => $relative_prefix,
  6198. 'CreateDocumentWebDir' => api_get_path(WEB_COURSE_PATH) . api_get_course_path().'/document/',
  6199. 'BaseHref' => api_get_path(WEB_COURSE_PATH) . api_get_course_path().'/document/'.$relative_path
  6200. );
  6201. if ($_GET['action'] == 'add_item') {
  6202. $class = 'add';
  6203. $text = get_lang('LPCreateDocument');
  6204. } else
  6205. if ($_GET['action'] == 'edit_item') {
  6206. $class = 'save';
  6207. $text = get_lang('SaveDocument');
  6208. }
  6209. $form->addElement('style_submit_button', 'submit_button', $text, 'class="' . $class . '"');
  6210. $renderer = $form->defaultRenderer();
  6211. $renderer->setElementTemplate('<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{label}<br />{element}', 'content_lp');
  6212. $form->addElement('html', '<div style="margin:3px 12px">');
  6213. $form->addElement('html_editor', 'content_lp', '', null, $editor_config);
  6214. $form->addElement('html', '</div>');
  6215. $defaults['content_lp'] = $content;
  6216. }
  6217. } elseif (is_numeric($extra_info)) {
  6218. $form->addElement('style_submit_button', 'submit_button', get_lang('SaveDocument'), 'class="save"');
  6219. $return = $this->display_document($extra_info, true, true, true);
  6220. $form->addElement('html', $return);
  6221. }
  6222. }
  6223. }
  6224. if ($action == 'move') {
  6225. $form->addElement('hidden', 'title', $item_title);
  6226. $form->addElement('hidden', 'description', $item_description);
  6227. }
  6228. if (is_numeric($extra_info)) {
  6229. $form->addElement('style_submit_button', 'submit_button', get_lang('SaveDocument'), 'value="submit_button", class="save"');
  6230. $form->addElement('hidden', 'path', $extra_info);
  6231. }
  6232. elseif (is_array($extra_info)) {
  6233. $form->addElement('style_submit_button', 'submit_button', get_lang('SaveDocument'), 'class="save"');
  6234. $form->addElement('hidden', 'path', $extra_info['path']);
  6235. }
  6236. $form->addElement('hidden', 'type', TOOL_DOCUMENT);
  6237. $form->addElement('hidden', 'post_time', time());
  6238. $form->setDefaults($defaults);
  6239. return $form->return_form();
  6240. }
  6241. /**
  6242. * Return HTML form to add/edit a link item
  6243. * @param string Action (add/edit)
  6244. * @param integer Item ID if exists
  6245. * @param mixed Extra info
  6246. * @return string HTML form
  6247. */
  6248. public function display_link_form($action = 'add', $id = 0, $extra_info = '') {
  6249. global $charset;
  6250. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  6251. $tbl_link = Database :: get_course_table(TABLE_LINK);
  6252. if ($id != 0 && is_array($extra_info)) {
  6253. $item_title = stripslashes($extra_info['title']);
  6254. $item_description = stripslashes($extra_info['description']);
  6255. $item_url = stripslashes($extra_info['url']);
  6256. } elseif (is_numeric($extra_info)) {
  6257. $sql_link = "SELECT title, description, url FROM " . $tbl_link . " WHERE id = " . $extra_info;
  6258. $result = Database::query($sql_link);
  6259. $row = Database :: fetch_array($result);
  6260. $item_title = $row['title'];
  6261. $item_description = $row['description'];
  6262. $item_url = $row['url'];
  6263. } else {
  6264. $item_title = '';
  6265. $item_description = '';
  6266. $item_url = '';
  6267. }
  6268. $return = ' <div class="row">
  6269. <div class="form_header">';
  6270. if ($id != 0 && is_array($extra_info))
  6271. $parent = $extra_info['parent_item_id'];
  6272. else
  6273. $parent = 0;
  6274. $sql = "SELECT * FROM " . $tbl_lp_item . " WHERE lp_id = " . $this->lp_id;
  6275. $result = Database::query($sql);
  6276. $arrLP = array ();
  6277. while ($row = Database :: fetch_array($result)) {
  6278. $arrLP[] = array (
  6279. 'id' => $row['id'],
  6280. 'item_type' => $row['item_type'],
  6281. 'title' => $row['title'],
  6282. 'path' => $row['path'],
  6283. 'description' => $row['description'],
  6284. 'parent_item_id' => $row['parent_item_id'],
  6285. 'previous_item_id' => $row['previous_item_id'],
  6286. 'next_item_id' => $row['next_item_id'],
  6287. 'display_order' => $row['display_order'],
  6288. 'max_score' => $row['max_score'],
  6289. 'min_score' => $row['min_score'],
  6290. 'mastery_score' => $row['mastery_score'],
  6291. 'prerequisite' => $row['prerequisite']
  6292. );
  6293. }
  6294. $this->tree_array($arrLP);
  6295. $arrLP = $this->arrMenu;
  6296. unset ($this->arrMenu);
  6297. if ($action == 'add')
  6298. $return .= get_lang('CreateTheLink') . '&nbsp;:';
  6299. elseif ($action == 'move') $return .= get_lang('MoveCurrentLink') . '&nbsp;:';
  6300. else
  6301. $return .= get_lang('EditCurrentLink') . '&nbsp;:';
  6302. $return .= ' </div>
  6303. </div>';
  6304. $return .= '<div class="sectioncomment">';
  6305. $return .= '<form method="POST">';
  6306. $return .= '<table>';
  6307. if ($action != 'move') {
  6308. $return .= '<tr>';
  6309. $return .= '<td class="label"><label for="idTitle">' . get_lang('Title') . '</label></td>';
  6310. $return .= '<td class="input"><input id="idTitle" name="title" size="44" type="text" value="' . $item_title . '" class="learnpath_item_form"/></td>';
  6311. $return .= '</tr>';
  6312. }
  6313. $return .= '<tr>';
  6314. $return .= '<td class="label"><label for="idParent">' . get_lang('Parent') . '</label></td>';
  6315. $return .= '<td class="input">';
  6316. $return .= '<select id="idParent" style="width:100%;" name="parent" onChange="javascript: load_cbo(this.value);" class="learnpath_item_form" size="1">';
  6317. $return .= '<option class="top" value="0">' . $this->name . '</option>';
  6318. $arrHide = array (
  6319. $id
  6320. );
  6321. $parent_item_id = $_SESSION['parent_item_id'];
  6322. for ($i = 0; $i < count($arrLP); $i++) {
  6323. if ($action != 'add') {
  6324. if (($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide)) {
  6325. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . $arrLP[$i]['title'] . '</option>';
  6326. } else {
  6327. $arrHide[] = $arrLP[$i]['id'];
  6328. }
  6329. } else {
  6330. if ($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir')
  6331. $return .= "\t\t\t\t\t" . '<option ' . (($parent_item_id == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . $arrLP[$i]['title'] . '</option>';
  6332. }
  6333. }
  6334. if (is_array($arrLP)) {
  6335. reset($arrLP);
  6336. }
  6337. $return .= "\t\t\t\t" . '</select>';
  6338. $return .= '</td>';
  6339. $return .= '</tr>';
  6340. $return .= '<tr>';
  6341. $return .= '<td class="label"><label for="previous">' . get_lang('Position') . '</label></td>';
  6342. $return .= '<td class="input">';
  6343. $return .= "\t\t\t\t" . '<select id="previous" name="previous" style="width:100%;" size="1" class="learnpath_item_form">';
  6344. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . get_lang('FirstPosition') . '</option>';
  6345. for ($i = 0; $i < count($arrLP); $i++) {
  6346. if ($arrLP[$i]['parent_item_id'] == $parent_item_id && $arrLP[$i]['id'] != $id) {
  6347. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  6348. $selected = 'selected="selected" ';
  6349. elseif ($action == 'add')
  6350. $selected = 'selected="selected" ';
  6351. else
  6352. $selected = '';
  6353. $return .= '<option ' . $selected . 'value="' . $arrLP[$i]['id'] . '">' . get_lang('After') . ' "' . $arrLP[$i]['title'] . '"</option>';
  6354. }
  6355. }
  6356. $return .= '</select>';
  6357. $return .= '</td>';
  6358. $return .= '</tr>';
  6359. if ($action != 'move') {
  6360. $return .= '<tr>';
  6361. $return .= '<td class="label"><label for="idURL">' . get_lang('Url') . '</label></td>';
  6362. $return .= '<td class="input"><input' . (is_numeric($extra_info) ? ' disabled="disabled"' : '') . ' id="idURL" name="url" style="width:99%;" type="text" value="' . $item_url . '" class="learnpath_item_form" /></td>';
  6363. $return .= '</tr>';
  6364. $id_prerequisite = 0;
  6365. if (is_array($arrLP)) {
  6366. foreach ($arrLP as $key => $value) {
  6367. if ($value['id'] == $id) {
  6368. $id_prerequisite = $value['prerequisite'];
  6369. break;
  6370. }
  6371. }
  6372. }
  6373. $arrHide = array ();
  6374. for ($i = 0; $i < count($arrLP); $i++) {
  6375. if ($arrLP[$i]['id'] != $id && $arrLP[$i]['item_type'] != 'dokeos_chapter') {
  6376. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  6377. $s_selected_position = $arrLP[$i]['id'];
  6378. elseif ($action == 'add') $s_selected_position = 0;
  6379. $arrHide[$arrLP[$i]['id']]['value'] = $arrLP[$i]['title'];
  6380. }
  6381. }
  6382. /*// Commented the prerequisites, only visible in edit (link).
  6383. $return .= '<tr>';
  6384. $return .= '<td class="label"><label for="idPrerequisites">'.get_lang('Prerequisites').'</label></td>';
  6385. $return .= '<td class="input"><select name="prerequisites" id="prerequisites" class="learnpath_item_form"><option value="0">'.get_lang('NoPrerequisites').'</option>';
  6386. foreach($arrHide as $key => $value) {
  6387. if ($key == $s_selected_position && $action == 'add') {
  6388. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  6389. }
  6390. elseif ($key == $id_prerequisite && $action == 'edit') {
  6391. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  6392. }
  6393. else {
  6394. $return .= '<option value="'.$key.'">'.$value['value'].'</option>';
  6395. }
  6396. }
  6397. $return .= "</select></td>";
  6398. */
  6399. $return .= '</tr>';
  6400. }
  6401. $return .= '<tr>';
  6402. if ($action == 'add') {
  6403. $return .= '<td>&nbsp;</td><td><button class="save" name="submit_button" type="submit">' . get_lang('AddLinkToCourse') . '</button></td>';
  6404. } else {
  6405. $return .= '<td>&nbsp;</td><td><button class="save" name="submit_button" type="submit">' . get_lang('EditCurrentLink') . '</button></td>';
  6406. }
  6407. $return .= '</tr>';
  6408. $return .= '</table>';
  6409. if ($action == 'move') {
  6410. $return .= '<input name="title" type="hidden" value="' . $item_title . '" />';
  6411. $return .= '<input name="description" type="hidden" value="' . $item_description . '" />';
  6412. }
  6413. if (is_numeric($extra_info)) {
  6414. $return .= '<input name="path" type="hidden" value="' . $extra_info . '" />';
  6415. }
  6416. elseif (is_array($extra_info)) {
  6417. $return .= '<input name="path" type="hidden" value="' . $extra_info['path'] . '" />';
  6418. }
  6419. $return .= '<input name="type" type="hidden" value="' . TOOL_LINK . '" />';
  6420. $return .= '<input name="post_time" type="hidden" value="' . time() . '" />';
  6421. $return .= '</form>';
  6422. $return .= '</div>';
  6423. return $return;
  6424. }
  6425. /**
  6426. * Return HTML form to add/edit a student publication (work)
  6427. * @param string Action (add/edit)
  6428. * @param integer Item ID if already exists
  6429. * @param mixed Extra info (work ID if integer)
  6430. * @return string HTML form
  6431. */
  6432. public function display_student_publication_form($action = 'add', $id = 0, $extra_info = '') {
  6433. global $charset;
  6434. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  6435. $tbl_publication = Database :: get_course_table(TABLE_STUDENT_PUBLICATION);
  6436. if ($id != 0 && is_array($extra_info)) {
  6437. $item_title = stripslashes($extra_info['title']);
  6438. $item_description = stripslashes($extra_info['description']);
  6439. }
  6440. elseif (is_numeric($extra_info)) {
  6441. $sql_publication = "
  6442. SELECT
  6443. title,
  6444. description
  6445. FROM " . $tbl_publication . "
  6446. WHERE id = " . $extra_info;
  6447. $result = Database::query($sql_publication);
  6448. $row = Database :: fetch_array($result);
  6449. $item_title = $row['title'];
  6450. } else {
  6451. $item_title = get_lang('Student_publication');
  6452. }
  6453. $return = ' <div class="row">
  6454. <div class="form_header">';
  6455. if ($id != 0 && is_array($extra_info))
  6456. $parent = $extra_info['parent_item_id'];
  6457. else
  6458. $parent = 0;
  6459. $sql = "
  6460. SELECT *
  6461. FROM " . $tbl_lp_item . "
  6462. WHERE
  6463. lp_id = " . $this->lp_id;
  6464. $result = Database::query($sql);
  6465. $arrLP = array ();
  6466. while ($row = Database :: fetch_array($result)) {
  6467. $arrLP[] = array (
  6468. 'id' => $row['id'],
  6469. 'item_type' => $row['item_type'],
  6470. 'title' => $row['title'],
  6471. 'path' => $row['path'],
  6472. 'description' => $row['description'],
  6473. 'parent_item_id' => $row['parent_item_id'],
  6474. 'previous_item_id' => $row['previous_item_id'],
  6475. 'next_item_id' => $row['next_item_id'],
  6476. 'display_order' => $row['display_order'],
  6477. 'max_score' => $row['max_score'],
  6478. 'min_score' => $row['min_score'],
  6479. 'mastery_score' => $row['mastery_score'],
  6480. 'prerequisite' => $row['prerequisite']
  6481. );
  6482. }
  6483. $this->tree_array($arrLP);
  6484. $arrLP = $this->arrMenu;
  6485. unset ($this->arrMenu);
  6486. if ($action == 'add')
  6487. $return .= get_lang('Student_publication') . '&nbsp;:' . "\n";
  6488. elseif ($action == 'move') $return .= get_lang('MoveCurrentStudentPublication') . '&nbsp;:' . "\n";
  6489. else
  6490. $return .= get_lang('EditCurrentStudentPublication') . '&nbsp;:' . "\n";
  6491. $return .= ' </div>
  6492. </div>';
  6493. $return .= '<div class="sectioncomment">';
  6494. $return .= '<form method="POST">';
  6495. $return .= '<table class="lp_form">';
  6496. if ($action != 'move') {
  6497. $return .= '<tr>';
  6498. $return .= '<td class="label"><label for="idTitle">' . get_lang('Title') . '</label></td>';
  6499. $return .= '<td class="input"><input id="idTitle" name="title" size="44" type="text" value="' . $item_title . '" class="learnpath_item_form" /></td>';
  6500. $return .= '</tr>';
  6501. }
  6502. $return .= '<tr>';
  6503. $return .= '<td class="label"><label for="idParent">' . get_lang('Parent') . '</label></td>';
  6504. $return .= '<td class="input">';
  6505. $return .= "\t\t\t\t" . '<select id="idParent" name="parent" style="width:100%;" onChange="javascript: load_cbo(this.value);" class="learnpath_item_form" size="1">';
  6506. //$parent_item_id = $_SESSION['parent_item_id'];
  6507. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . $this->name . '</option>';
  6508. $arrHide = array (
  6509. $id
  6510. );
  6511. for ($i = 0; $i < count($arrLP); $i++) {
  6512. if ($action != 'add') {
  6513. if (($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide)) {
  6514. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . $arrLP[$i]['title'] . '</option>';
  6515. } else {
  6516. $arrHide[] = $arrLP[$i]['id'];
  6517. }
  6518. } else {
  6519. if ($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir')
  6520. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . $arrLP[$i]['title'] . '</option>';
  6521. }
  6522. }
  6523. if (is_array($arrLP)) {
  6524. reset($arrLP);
  6525. }
  6526. $return .= "\t\t\t\t" . '</select>';
  6527. $return .= '</td>';
  6528. $return .= '</tr>';
  6529. $return .= '<tr>';
  6530. $return .= '<td class="label"><label for="previous">' . get_lang('Position') . '</label></td>';
  6531. $return .= '<td class="input">';
  6532. $return .= "\t\t\t\t" . '<select id="previous" name="previous" style="width:100%;" size="1" class="learnpath_item_form">';
  6533. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . get_lang('FirstPosition') . '</option>';
  6534. for ($i = 0; $i < count($arrLP); $i++) {
  6535. if ($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id) {
  6536. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  6537. $selected = 'selected="selected" ';
  6538. elseif ($action == 'add') $selected = 'selected="selected" ';
  6539. else
  6540. $selected = '';
  6541. $return .= "\t\t\t\t\t" . '<option ' . $selected . 'value="' . $arrLP[$i]['id'] . '">' . get_lang('After') . ' "' . $arrLP[$i]['title'] . '"</option>';
  6542. }
  6543. }
  6544. $return .= "\t\t\t\t" . '</select>';
  6545. $return .= '</td>';
  6546. $return .= '</tr>';
  6547. if ($action != 'move') {
  6548. $id_prerequisite = 0;
  6549. if (is_array($arrLP)) {
  6550. foreach ($arrLP as $key => $value) {
  6551. if ($value['id'] == $id) {
  6552. $id_prerequisite = $value['prerequisite'];
  6553. break;
  6554. }
  6555. }
  6556. }
  6557. $arrHide = array ();
  6558. for ($i = 0; $i < count($arrLP); $i++) {
  6559. if ($arrLP[$i]['id'] != $id && $arrLP[$i]['item_type'] != 'dokeos_chapter') {
  6560. if ($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  6561. $s_selected_position = $arrLP[$i]['id'];
  6562. elseif ($action == 'add') $s_selected_position = 0;
  6563. $arrHide[$arrLP[$i]['id']]['value'] = $arrLP[$i]['title'];
  6564. }
  6565. }
  6566. // Commented the prerequisites, only visible in edit (work).
  6567. /*
  6568. $return .= '<tr>';
  6569. $return .= '<td class="label"><label for="idPrerequisites">'.get_lang('Prerequisites').'</label></td>';
  6570. $return .= '<td class="input"><select name="prerequisites" id="prerequisites" class="learnpath_item_form"><option value="0">'.get_lang('NoPrerequisites').'</option>';
  6571. foreach($arrHide as $key => $value) {
  6572. if ($key == $s_selected_position && $action == 'add') {
  6573. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  6574. }
  6575. elseif ($key == $id_prerequisite && $action == 'edit') {
  6576. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  6577. }
  6578. else {
  6579. $return .= '<option value="'.$key.'">'.$value['value'].'</option>';
  6580. }
  6581. }
  6582. $return .= "</select></td>";
  6583. */
  6584. $return .= '</tr>';
  6585. }
  6586. $return .= '<tr>';
  6587. if ($action == 'add') {
  6588. $return .= '<td>&nbsp</td><td><button class="save" name="submit_button" type="submit">' . get_lang('AddAssignmentToCourse') . '</button></td>';
  6589. } else {
  6590. $return .= '<td>&nbsp</td><td><button class="save" name="submit_button" type="submit">' . get_lang('EditCurrentStudentPublication') . '</button></td>';
  6591. }
  6592. $return .= '</tr>';
  6593. $return .= '</table>';
  6594. if ($action == 'move') {
  6595. $return .= '<input name="title" type="hidden" value="' . $item_title . '" />';
  6596. $return .= '<input name="description" type="hidden" value="' . $item_description . '" />';
  6597. }
  6598. if (is_numeric($extra_info)) {
  6599. $return .= '<input name="path" type="hidden" value="' . $extra_info . '" />';
  6600. } elseif (is_array($extra_info)) {
  6601. $return .= '<input name="path" type="hidden" value="' . $extra_info['path'] . '" />';
  6602. }
  6603. $return .= '<input name="type" type="hidden" value="' . TOOL_STUDENTPUBLICATION . '" />';
  6604. $return .= '<input name="post_time" type="hidden" value="' . time() . '" />';
  6605. $return .= '</form>';
  6606. $return .= '</div>';
  6607. return $return;
  6608. }
  6609. /**
  6610. * Displays the menu for manipulating a step
  6611. * @return string html
  6612. */
  6613. public function display_manipulate($item_id, $item_type = TOOL_DOCUMENT) {
  6614. global $charset, $_course;
  6615. $return = '<div class="actions">';
  6616. switch ($item_type) {
  6617. case 'dokeos_chapter' :
  6618. case 'chapter' :
  6619. // Commented the message cause should not show it.
  6620. //$lang = get_lang('TitleManipulateChapter');
  6621. break;
  6622. case 'dokeos_module' :
  6623. case 'module' :
  6624. // Commented the message cause should not show it.
  6625. //$lang = get_lang('TitleManipulateModule');
  6626. break;
  6627. case TOOL_DOCUMENT :
  6628. // Commented the message cause should not show it.
  6629. //$lang = get_lang('TitleManipulateDocument');
  6630. break;
  6631. case TOOL_LINK :
  6632. case 'link' :
  6633. // Commented the message cause should not show it.
  6634. //$lang = get_lang('TitleManipulateLink');
  6635. break;
  6636. case TOOL_QUIZ :
  6637. // Commented the message cause should not show it.
  6638. //$lang = get_lang('TitleManipulateQuiz');
  6639. break;
  6640. case TOOL_STUDENTPUBLICATION :
  6641. // Commented the message cause should not show it.
  6642. //$lang = get_lang('TitleManipulateStudentPublication');
  6643. break;
  6644. }
  6645. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  6646. $item_id = intval($item_id);
  6647. $sql = "SELECT * FROM " . $tbl_lp_item . " as lp WHERE lp.id = " . $item_id;
  6648. $result = Database::query($sql);
  6649. $row = Database::fetch_assoc($result);
  6650. $s_title = $row['title'];
  6651. // We display an audio player if needed.
  6652. if (!empty ($row['audio'])) {
  6653. $return .= '<div class="lp_mediaplayer" id="container"><a href="http://www.macromedia.com/go/getflashplayer">Get the Flash Player</a> to see this player.</div>';
  6654. $return .= '<script type="text/javascript" src="../inc/lib/mediaplayer/swfobject.js"></script>';
  6655. $return .= '<script type="text/javascript">
  6656. var s1 = new SWFObject("../inc/lib/mediaplayer/player.swf","ply","250","20","9","#FFFFFF");
  6657. s1.addParam("allowscriptaccess","always");
  6658. s1.addParam("flashvars","file=../../courses/' . $_course['path'] . '/document/audio/' . $row['audio'] . '&autostart=true");
  6659. s1.write("container");
  6660. </script>';
  6661. }
  6662. // Commented ":" for message in step.
  6663. //$return .= $lang.': ';
  6664. $url = api_get_self() . '?cidReq='.Security::remove_XSS($_GET['cidReq']).'&view=build&id='.$item_id .'&lp_id='.$this->lp_id;
  6665. $return .= Display::url(Display::return_icon('edit.png', get_lang('Edit'), array(), 22), $url.'&action=edit_item&path_item=' . $row['path']);
  6666. $return .= Display::url(Display::return_icon('move.png', get_lang('Move'), array(), 22), $url.'&action=move_item');
  6667. // Commented for now as prerequisites cannot be added to chapters.
  6668. if ($item_type != 'dokeos_chapter' && $item_type != 'chapter') {
  6669. $return .= Display::url(Display::return_icon('accept.png', get_lang('Prerequisites'), array(), 22), $url.'&action=edit_item_prereq');
  6670. }
  6671. $return .= Display::url(Display::return_icon('delete.png', get_lang('Delete'), array(), 22), $url.'&action=delete_item');
  6672. /*
  6673. // Get the audiorecorder. Use of ob_* functions since there are echos in the file.
  6674. ob_start();
  6675. $audio_recorder_studentview = 'false';
  6676. $audio_recorder_item_id = $item_id;
  6677. if (api_get_setting('service_visio', 'active') == 'true') {
  6678. require_once 'audiorecorder.inc.php';
  6679. }
  6680. $return .= ob_get_contents();
  6681. ob_end_clean();
  6682. // End of audiorecorder include
  6683. */
  6684. $return .= '</div>';
  6685. return $return;
  6686. }
  6687. /**
  6688. * Creates the javascript needed for filling up the checkboxes without page reload
  6689. *
  6690. * @return string
  6691. */
  6692. public function get_js_dropdown_array() {
  6693. $return = 'var child_name = new Array();' . "\n";
  6694. $return .= 'var child_value = new Array();' . "\n\n";
  6695. $return .= 'child_name[0] = new Array();' . "\n";
  6696. $return .= 'child_value[0] = new Array();' . "\n\n";
  6697. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  6698. $sql_zero = "
  6699. SELECT * FROM " . $tbl_lp_item . "
  6700. WHERE lp_id = " . $this->lp_id . " AND parent_item_id = 0
  6701. ORDER BY display_order ASC";
  6702. $res_zero = Database::query($sql_zero);
  6703. global $charset;
  6704. $i = 0;
  6705. while ($row_zero = Database :: fetch_array($res_zero)) {
  6706. $js_var = json_encode(get_lang('After').' '.$row_zero['title']);
  6707. $return .= 'child_name[0][' . $i . '] = '.$js_var.' ;' . "\n";
  6708. $return .= 'child_value[0][' . $i++ . '] = "' . $row_zero['id'] . '";' . "\n";
  6709. }
  6710. $return .= "\n";
  6711. $sql = "SELECT * FROM " . $tbl_lp_item . " WHERE lp_id = " . $this->lp_id;
  6712. $res = Database::query($sql);
  6713. while ($row = Database :: fetch_array($res)) {
  6714. $sql_parent = "
  6715. SELECT * FROM " . $tbl_lp_item . "
  6716. WHERE parent_item_id = " . $row['id'] . "
  6717. ORDER BY display_order ASC";
  6718. $res_parent = Database::query($sql_parent);
  6719. $i = 0;
  6720. $return .= 'child_name[' . $row['id'] . '] = new Array();' . "\n";
  6721. $return .= 'child_value[' . $row['id'] . '] = new Array();' . "\n\n";
  6722. while ($row_parent = Database :: fetch_array($res_parent)) {
  6723. $js_var = json_encode(get_lang('After').' '.$row_parent['title']);
  6724. $return .= 'child_name[' . $row['id'] . '][' . $i . '] = '.$js_var.' ;' . "\n";
  6725. $return .= 'child_value[' . $row['id'] . '][' . $i++ . '] = "' . $row_parent['id'] . '";' . "\n";
  6726. }
  6727. $return .= "\n";
  6728. }
  6729. return $return;
  6730. }
  6731. /**
  6732. * Display the form to allow moving an item
  6733. * @param integer Item ID
  6734. * @return string HTML form
  6735. */
  6736. public function display_move_item($item_id) {
  6737. global $_course; //will disappear
  6738. global $charset;
  6739. $return = '';
  6740. if (is_numeric($item_id)) {
  6741. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  6742. $sql = "SELECT *
  6743. FROM " . $tbl_lp_item . "
  6744. WHERE id = " . $item_id;
  6745. $res = Database::query($sql);
  6746. $row = Database :: fetch_array($res);
  6747. switch ($row['item_type']) {
  6748. case 'dokeos_chapter' :
  6749. case 'dir' :
  6750. case 'asset' :
  6751. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6752. $return .= $this->display_item_form($row['item_type'], get_lang('MoveCurrentChapter'), 'move', $item_id, $row);
  6753. break;
  6754. case 'dokeos_module' :
  6755. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6756. $return .= $this->display_item_form($row['item_type'], 'Move th current module:', 'move', $item_id, $row);
  6757. break;
  6758. case TOOL_DOCUMENT :
  6759. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6760. $return .= $this->display_document_form('move', $item_id, $row);
  6761. break;
  6762. case TOOL_LINK :
  6763. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6764. $return .= $this->display_link_form('move', $item_id, $row);
  6765. break;
  6766. case TOOL_HOTPOTATOES :
  6767. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6768. $return .= $this->display_link_form('move', $item_id, $row);
  6769. break;
  6770. case TOOL_QUIZ :
  6771. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6772. $return .= $this->display_quiz_form('move', $item_id, $row);
  6773. break;
  6774. case TOOL_STUDENTPUBLICATION :
  6775. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6776. $return .= $this->display_student_publication_form('move', $item_id, $row);
  6777. break;
  6778. case TOOL_FORUM :
  6779. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6780. $return .= $this->display_forum_form('move', $item_id, $row);
  6781. break;
  6782. case TOOL_THREAD :
  6783. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6784. $return .= $this->display_forum_form('move', $item_id, $row);
  6785. break;
  6786. }
  6787. }
  6788. return $return;
  6789. }
  6790. /**
  6791. * Displays a basic form on the overview page for changing the item title and the item description.
  6792. * @param string $item_type
  6793. * @param string $title
  6794. * @param array $data
  6795. * @return string
  6796. */
  6797. public function display_item_small_form($item_type, $title = '', $data) {
  6798. global $charset;
  6799. $return = '<div class="lp_small_form">';
  6800. $return .= '<p class="lp_title">' . $title . '</p>';
  6801. $return .= '<form method="post">';
  6802. $return .= '<table cellpadding="0" cellspacing="0" class="lp_form">';
  6803. $return .= '<tr>';
  6804. $return .= '<td class="label"><label for="idTitle">Title&nbsp;:</label></td>';
  6805. $return .= '<td class="input"><input class="small_form" id="idTitle" name="title" type="text" value="' . api_html_entity_decode($data['title'], ENT_QUOTES) . '" /></td>';
  6806. $return .= '</tr>';
  6807. // It said these lines of code - see SVN#11724 and SVN#10770
  6808. //$return .= '<tr>';
  6809. //$return .= '<td class="label"><label for="idDescription">Description&nbsp;:</label></td>';
  6810. //$return .= '<td class="input"><textarea class="small_form" id="idDescription" name="description" rows="4">' . $data['description'] . '</textarea></td>';
  6811. //$return .= '</tr>';
  6812. $return .= '<tr>';
  6813. $return .= '<td colspan="2"><button class="save" name="submit_button" type="submit">' . get_lang('Save') . '</button></td>';
  6814. $return .= '</tr>';
  6815. $return .= '</table>';
  6816. $return .= '<input name="parent" type="hidden" value="' . $data['parent_item_id'] . '"/>';
  6817. $return .= '<input name="previous" type="hidden" value="' . $data['previous_item_id'] . '"/>';
  6818. $return .= '</form>';
  6819. $return .= '</div>';
  6820. return $return;
  6821. }
  6822. /**
  6823. * Return HTML form to allow prerequisites selection
  6824. * @param integer Item ID
  6825. * @return string HTML form
  6826. */
  6827. public function display_item_prerequisites_form($item_id) {
  6828. global $charset;
  6829. $tbl_lp_item = Database :: get_course_table(TABLE_LP_ITEM);
  6830. $item_id = intval($item_id);
  6831. /* Current prerequisite */
  6832. $sql = "SELECT * FROM $tbl_lp_item WHERE id = " . $item_id;
  6833. $result = Database::query($sql);
  6834. $row = Database::fetch_array($result);
  6835. $preq_id = $row['prerequisite'];
  6836. //$preq_mastery = $row['mastery_score'];
  6837. //$preq_max = $row['max_score'];
  6838. $return = $this->display_manipulate($item_id, TOOL_DOCUMENT);
  6839. $return = ' <div class="row">
  6840. <div class="form_header">';
  6841. $return .= get_lang('AddEditPrerequisites');
  6842. $return .= '</div></div>';
  6843. $return .= '<div class="sectioncomment">';
  6844. $return .= '<form method="POST">';
  6845. $return .= '<table class="data_table" style="width:650px">';
  6846. $return .= '<tr>';
  6847. $return .= '<th height="24">' . get_lang('Prerequisites') . '</th>';
  6848. $return .= '<th width="70" height="24">' . get_lang('Minimum') . '</th>';
  6849. $return .= '<th width="70" height="24">' . get_lang('Maximum') . '</th>';
  6850. $return .= '</tr>';
  6851. // Adding the none option to the prerequisites see http://www.chamilo.org/es/node/146
  6852. $return .= '<tr >';
  6853. $return .= '<td colspan="3" class="radio">';
  6854. $return .= '<input checked="checked" id="idNone" name="prerequisites" style="margin-left:0px; margin-right:10px;" type="radio" />';
  6855. $return .= '<label for="idNone">' . get_lang('None') . '</label>';
  6856. $return .= '</tr>';
  6857. $sql = "SELECT * FROM " . $tbl_lp_item . " WHERE lp_id = " . $this->lp_id;
  6858. $result = Database::query($sql);
  6859. $arrLP = array ();
  6860. while ($row = Database :: fetch_array($result)) {
  6861. $arrLP[] = array (
  6862. 'id' => $row['id'],
  6863. 'item_type' => $row['item_type'],
  6864. 'title' => $row['title'],
  6865. 'ref' => $row['ref'],
  6866. 'description' => $row['description'],
  6867. 'parent_item_id' => $row['parent_item_id'],
  6868. 'previous_item_id' => $row['previous_item_id'],
  6869. 'next_item_id' => $row['next_item_id'],
  6870. 'max_score' => $row['max_score'],
  6871. 'min_score' => $row['min_score'],
  6872. 'mastery_score' => $row['mastery_score'],
  6873. 'prerequisite' => $row['prerequisite'],
  6874. 'next_item_id' => $row['next_item_id'],
  6875. 'display_order' => $row['display_order']
  6876. );
  6877. if ($row['ref'] == $preq_id) {
  6878. $preq_mastery = $row['mastery_score'];
  6879. $preq_max = $row['max_score'];
  6880. }
  6881. }
  6882. $this->tree_array($arrLP);
  6883. $arrLP = $this->arrMenu;
  6884. unset ($this->arrMenu);
  6885. for ($i = 0; $i < count($arrLP); $i++) {
  6886. if ($arrLP[$i]['id'] == $item_id)
  6887. break;
  6888. $return .= '<tr>';
  6889. $return .= '<td class="radio"' . (($arrLP[$i]['item_type'] != TOOL_QUIZ && $arrLP[$i]['item_type'] != TOOL_HOTPOTATOES) ? ' colspan="3"' : '') . '>';
  6890. $return .= '<input' . (($arrLP[$i]['id'] == $preq_id) ? ' checked="checked" ' : '') . (($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter') ? ' disabled="disabled" ' : ' ') . 'id="id' . $arrLP[$i]['id'] . '" name="prerequisites" style="margin-left:' . $arrLP[$i]['depth'] * 10 . 'px; margin-right:10px;" type="radio" value="' . $arrLP[$i]['id'] . '" />';
  6891. $icon_name = str_replace(' ', '', $arrLP[$i]['item_type']);
  6892. if (file_exists('../img/lp_' . $icon_name . '.png')) {
  6893. $return .= '<img alt="" src="../img/lp_' . $icon_name . '.png" style="margin-right:5px;" title="" />';
  6894. } else
  6895. if (file_exists('../img/lp_' . $icon_name . '.gif')) {
  6896. $return .= '<img alt="" src="../img/lp_' . $icon_name . '.gif" style="margin-right:5px;" title="" />';
  6897. } else {
  6898. $return .= Display::return_icon('folder_document.gif','',array('style'=>'margin-right:5px;'));
  6899. }
  6900. $return .= '<label for="id' . $arrLP[$i]['id'] . '">' . $arrLP[$i]['title'] . '</label>';
  6901. $return .= '</td>';
  6902. //$return .= '<td class="radio"' . (($arrLP[$i]['item_type'] != TOOL_HOTPOTATOES) ? ' colspan="3"' : '') . ' />';
  6903. if ($arrLP[$i]['item_type'] == TOOL_QUIZ) {
  6904. $return .= '<td class="exercise" style="border:1px solid #ccc;">';
  6905. $return .= '<center><input size="4" maxlength="3" name="min_' . $arrLP[$i]['id'] . '" type="text" value="' . (($arrLP[$i]['id'] == $preq_id) ? $preq_mastery : 0) . '" /></center>';
  6906. $return .= '</td>';
  6907. $return .= '<td class="exercise" style="border:1px solid #ccc;">';
  6908. $return .= '<center><input size="4" maxlength="3" name="max_' . $arrLP[$i]['id'] . '" type="text" value="' . $arrLP[$i]['max_score'] . '" disabled="true" /></center>';
  6909. $return .= '</td>';
  6910. }
  6911. if ($arrLP[$i]['item_type'] == TOOL_HOTPOTATOES) {
  6912. $return .= '<td class="exercise" style="border:1px solid #ccc;">';
  6913. $return .= '<center><input size="4" maxlength="3" name="min_' . $arrLP[$i]['id'] . '" type="text" value="' . (($arrLP[$i]['id'] == $preq_id) ? $preq_mastery : 0) . '" /></center>';
  6914. $return .= '</td>';
  6915. $return .= '<td class="exercise" style="border:1px solid #ccc;">';
  6916. $return .= '<center><input size="4" maxlength="3" name="max_' . $arrLP[$i]['id'] . '" type="text" value="' . $arrLP[$i]['max_score'] . '" disabled="true" /></center>';
  6917. $return .= '</td>';
  6918. }
  6919. $return .= '</tr>';
  6920. }
  6921. $return .= '<tr>';
  6922. $return .= '</tr>';
  6923. $return .= '</table>';
  6924. $return .= '<div style="padding-top:3px;">';
  6925. $return .= '<button class="save" name="submit_button" type="submit">' . get_lang('ModifyPrerequisites') . ' </button></td>';
  6926. $return .= '</div>';
  6927. $return .= '</form>';
  6928. $return .= '</div>';
  6929. return $return;
  6930. }
  6931. /**
  6932. * Return HTML list to allow prerequisites selection for lp
  6933. * @param integer Item ID
  6934. * @return string HTML form
  6935. */
  6936. public function display_lp_prerequisites_list() {
  6937. global $charset;
  6938. $lp_id = $this->lp_id;
  6939. $tbl_lp = Database :: get_course_table(TABLE_LP_MAIN);
  6940. // get current prerequisite
  6941. $sql = "SELECT * FROM $tbl_lp WHERE id = $lp_id ";
  6942. $result = Database::query($sql);
  6943. $row = Database :: fetch_array($result);
  6944. $preq_id = $row['prerequisite'];
  6945. $session_id = api_get_session_id();
  6946. $session_condition = api_get_session_condition($session_id, false);
  6947. $sql = "SELECT * FROM $tbl_lp $session_condition ORDER BY display_order ";
  6948. $rs = Database::query($sql);
  6949. $return = '';
  6950. $return .= '<select name="prerequisites" >';
  6951. $return .= '<option value="0">'.get_lang('None').'</option>';
  6952. if (Database::num_rows($rs) > 0) {
  6953. while ($row = Database::fetch_array($rs)) {
  6954. if ($row['id'] == $lp_id) {
  6955. continue;
  6956. }
  6957. $return .= '<option value="'.$row['id'].'" '.(($row['id']==$preq_id)?' selected ' : '').'>'.$row['name'].'</option>';
  6958. }
  6959. }
  6960. $return .= '</select>';
  6961. return $return;
  6962. }
  6963. /**
  6964. * Creates a list with all the documents in it
  6965. * @return string
  6966. */
  6967. public function get_documents() {
  6968. $course_info = api_get_course_info();
  6969. require_once api_get_path(LIBRARY_PATH).'document.lib.php';
  6970. $document_tree = DocumentManager::get_document_preview($course_info, $this->lp_id);
  6971. return $document_tree;
  6972. }
  6973. /**
  6974. * Creates a list with all the exercises (quiz) in it
  6975. * @return string
  6976. */
  6977. public function get_exercises() {
  6978. // New for hotpotatoes.
  6979. $uploadPath = DIR_HOTPOTATOES; //defined in main_api
  6980. $tbl_doc = Database :: get_course_table(TABLE_DOCUMENT);
  6981. $tbl_quiz = Database :: get_course_table(TABLE_QUIZ_TEST);
  6982. $session_id = api_get_session_id();
  6983. $condition_session = api_get_session_condition($session_id);
  6984. $sql_quiz = "SELECT * FROM $tbl_quiz WHERE active<>'-1' $condition_session ORDER BY title ASC";
  6985. $sql_hot = "SELECT * FROM $tbl_doc WHERE path LIKE '" . $uploadPath . "/%/%htm%' $condition_session ORDER BY id ASC";
  6986. $res_quiz = Database::query($sql_quiz);
  6987. $res_hot = Database::query($sql_hot);
  6988. //$return .= '<div class="lp_resource_header"' . " onclick=\"javascript: if(document.getElementById('resExercise').style.display == 'block') {document.getElementById('resExercise').style.display = 'none';} else {document.getElementById('resExercise').style.display = 'block';}\"" . ' ><img align="left" alt="" src="../img/lp_' . TOOL_QUIZ . '.gif" style="margin-right:5px;" title="" />' . get_lang('Quiz') . '</div>';
  6989. $return = '<div class="lp_resource">';
  6990. $return .= '<div class="lp_resource_element">';
  6991. $return .= '<img alt="" src="../img/new_test_small.gif" style="margin-right:5px;" title="" />';
  6992. $return .= '<a href="' . api_get_path(REL_CODE_PATH) . 'exercice/exercise_admin.php?lp_id=' . $this->lp_id . '">' . get_lang('NewExercise') . '</a>';
  6993. $return .= '</div>';
  6994. while ($row_hot = Database :: fetch_array($res_hot)) {
  6995. $return .= '<div class="lp_resource_element">';
  6996. // Display quizhotpotatoes.
  6997. $return .= '<img alt="hp" src="../img/hotpotatoes_s.png" style="margin-right:5px;" title="" width="18px" height="18px" />';
  6998. $return .= '<a href="' . api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;action=add_item&amp;type=' . TOOL_HOTPOTATOES . '&amp;file=' . $row_hot['id'] . '&amp;lp_id=' . $this->lp_id . '">' . ((!empty ($row_hot['comment'])) ? $row_hot['comment'] : Security :: remove_XSS($row_hot['title'])) . '</a>';
  6999. //$return .= $row_quiz['title'];
  7000. $return .= '</div>';
  7001. }
  7002. while ($row_quiz = Database :: fetch_array($res_quiz)) {
  7003. $return .= '<div class="lp_resource_element">';
  7004. $return .= '<img alt="" src="../img/quizz_small.gif" style="margin-right:5px;" title="" />';
  7005. $return .= '<a href="' . api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;action=add_item&amp;type=' . TOOL_QUIZ . '&amp;file=' . $row_quiz['id'] . '&amp;lp_id=' . $this->lp_id . '">' . Security :: remove_XSS($row_quiz['title']) . '</a>';
  7006. //$return .= $row_quiz['title'];
  7007. $return .= '</div>';
  7008. }
  7009. /*if (Database :: num_rows($res_quiz) == 0) {
  7010. $return .= '<div class="lp_resource_element">' . get_lang('NoExercisesAvailable') . '</div>';
  7011. }*/
  7012. $return .= '</div>';
  7013. return $return;
  7014. }
  7015. /**
  7016. * Creates a list with all the links in it
  7017. * @return string
  7018. */
  7019. public function get_links() {
  7020. $tbl_link = Database :: get_course_table(TABLE_LINK);
  7021. $session_id = api_get_session_id();
  7022. $condition_session = api_get_session_condition($session_id,false);
  7023. $sql_link = "SELECT * FROM $tbl_link $condition_session ORDER BY title ASC";
  7024. $res_link = Database::query($sql_link);
  7025. //$return .= '<div class="lp_resource_header"' . " onclick=\"javascript: if(document.getElementById('resLink').style.display == 'block') {document.getElementById('resLink').style.display = 'none';} else {document.getElementById('resLink').style.display = 'block';}\"" . '><img alt="" src="../img/lp_' . TOOL_LINK . '.gif" style="margin-right:5px;" title="" />' . get_lang('Links') . '</div>';
  7026. $return = '<div class="lp_resource">';
  7027. $return .= '<div class="lp_resource_element">';
  7028. $return .= '<img alt="" src="../img/linksnew.gif" style="margin-right:5px;width:16px" title="" />';
  7029. $return .= '<a href="' . api_get_path(REL_CODE_PATH) . 'link/link.php?' . api_get_cidreq() . '&action=addlink&amp;lp_id=' . $this->lp_id . '" title="' . get_lang('LinkAdd') . '">' . get_lang('LinkAdd') . '</a>';
  7030. $return .= '</div>';
  7031. while ($row_link = Database :: fetch_array($res_link)) {
  7032. $return .= '<div class="lp_resource_element">';
  7033. $return .= '<img alt="" src="../img/lp_link.gif" style="margin-right:5px;" title="" />';
  7034. $return .= '<a href="' . api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;action=add_item&amp;type=' . TOOL_LINK . '&amp;file=' . $row_link['id'] . '&amp;lp_id=' . $this->lp_id . '">' . $row_link['title'] . '</a>';
  7035. $return .= '</div>';
  7036. }
  7037. /*if (Database :: num_rows($res_link) == 0)
  7038. $return .= '<div class="lp_resource_element">' . get_lang('NoLinksAvailable') . '</div>';
  7039. */
  7040. $return .= '</div>';
  7041. return $return;
  7042. }
  7043. /**
  7044. * Creates a list with all the student publications in it
  7045. * @return unknown
  7046. */
  7047. public function get_student_publications() {
  7048. $tbl_student = Database :: get_course_table(TABLE_STUDENT_PUBLICATION);
  7049. $session_id = api_get_session_id();
  7050. $condition_session = api_get_session_condition($session_id, false);
  7051. $sql_student = "SELECT * FROM $tbl_student $condition_session ORDER BY title ASC";
  7052. $res_student = Database::query($sql_student);
  7053. //$return .= '<div class="lp_resource_header"' . " onclick=\"javascript: if(document.getElementById('resStudent').style.display == 'block') {document.getElementById('resStudent').style.display = 'none';} else {document.getElementById('resStudent').style.display = 'block';}\"" . '><img alt="" src="../img/lp_' . TOOL_STUDENTPUBLICATION . '.gif" style="margin-right:5px;" title="" />' . get_lang('Student_publication') . '</div>';
  7054. $return = '<div class="lp_resource" >';
  7055. $return .= '<div class="lp_resource_element">';
  7056. $return .= '<img align="left" alt="" src="../img/works_small.gif" style="margin-right:5px;" title="" />';
  7057. $return .= '<a href="' . api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;action=add_item&amp;type=' . TOOL_STUDENTPUBLICATION . '&amp;lp_id=' . $this->lp_id . '">' . get_lang('AddAssignmentPage') . '</a>';
  7058. $return .= '</div>';
  7059. $return .= '</div>';
  7060. return $return;
  7061. }
  7062. /**
  7063. * Creates a list with all the forums in it
  7064. * @return string
  7065. */
  7066. public function get_forums() {
  7067. require_once '../forum/forumfunction.inc.php';
  7068. require_once '../forum/forumconfig.inc.php';
  7069. global $table_forums, $table_threads, $table_posts, $table_item_property, $table_users;
  7070. $table_forums = Database :: get_course_table(TABLE_FORUM);
  7071. $table_threads = Database :: get_course_table(TABLE_FORUM_THREAD);
  7072. $table_posts = Database :: get_course_table(TABLE_FORUM_POST);
  7073. $table_item_property = Database :: get_course_table(TABLE_ITEM_PROPERTY);
  7074. $table_users = Database :: get_main_table(TABLE_MAIN_USER);
  7075. $a_forums = get_forums();
  7076. //$return .= '<div class="lp_resource_header"' . " onclick=\"javascript: if(document.getElementById('forums').style.display == 'block') {document.getElementById('forums').style.display = 'none';} else {document.getElementById('forums').style.display = 'block';}\"" . '><img alt="" src="../img/lp_forum.gif" style="margin-right:5px;" title="" />' . get_lang('Forums') . '</div>';
  7077. $return = '<div class="lp_resource">';
  7078. $return .= '<div class="lp_resource_element">';
  7079. $return .= '<img alt="" src="../img/forum_new_small.gif" style="margin-right:5px;" title="" />';
  7080. $return .= '<a href="' . api_get_path(REL_CODE_PATH) . 'forum/index.php?' . api_get_cidreq() . '&action=add&amp;content=forum&amp;origin=learnpath&amp;lp_id=' . $this->lp_id . '" title="' . get_lang('CreateANewForum') . '">' . get_lang('CreateANewForum') . '</a>';
  7081. $return .= '</div>';
  7082. foreach ($a_forums as $forum) {
  7083. $return .= '<div class="lp_resource_element_no_link">';
  7084. $return .= '<script type="text/javascript">
  7085. function toggle_forum(forum_id){
  7086. if(document.getElementById("forum_"+forum_id+"_content").style.display == "none"){
  7087. document.getElementById("forum_"+forum_id+"_content").style.display = "block";
  7088. document.getElementById("forum_"+forum_id+"_opener").src = "' . api_get_path(WEB_IMG_PATH) . 'remove.gif";
  7089. }
  7090. else {
  7091. document.getElementById("forum_"+forum_id+"_content").style.display = "none";
  7092. document.getElementById("forum_"+forum_id+"_opener").src = "' . api_get_path(WEB_IMG_PATH) . 'add.gif";
  7093. }
  7094. }
  7095. </script>';
  7096. if (!empty($forum['forum_id'])) {
  7097. $return .= '<img alt="" src="../img/lp_forum.gif" style="margin-right:5px;" title="" />';
  7098. $return .= '<a style="cursor:hand" onclick="javascript: toggle_forum(' . $forum['forum_id'] . ')" style="vertical-align:middle"><img src="' . api_get_path(WEB_IMG_PATH) . 'add.gif" id="forum_' . $forum['forum_id'] . '_opener" align="absbottom" /></a>
  7099. <a href="' . api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;action=add_item&amp;type=' . TOOL_FORUM . '&amp;forum_id=' . $forum['forum_id'] . '&amp;lp_id=' . $this->lp_id . '" style="vertical-align:middle">' . Security :: remove_XSS($forum['forum_title']) . '</a><ul style="display:none" id="forum_' . $forum['forum_id'] . '_content">';
  7100. }
  7101. $a_threads = get_threads($forum['forum_id']);
  7102. if (is_array($a_threads)) {
  7103. foreach ($a_threads as $thread) {
  7104. $return .= '<li><a href="' . api_get_self() . '?cidReq=' . Security :: remove_XSS($_GET['cidReq']) . '&amp;action=add_item&amp;type=' . TOOL_THREAD . '&amp;thread_id=' . $thread['thread_id'] . '&amp;lp_id=' . $this->lp_id . '">' . Security :: remove_XSS($thread['thread_title']) . '</a></li>';
  7105. }
  7106. }
  7107. $return .= '</ul></div>';
  7108. }
  7109. return $return;
  7110. }
  7111. /**
  7112. * // TODO: The output encoding should be equal to the system encoding.
  7113. *
  7114. * Exports the learning path as a SCORM package. This is the main function that
  7115. * gathers the content, transforms it, writes the imsmanifest.xml file, zips the
  7116. * whole thing and returns the zip.
  7117. *
  7118. * This method needs to be called in PHP5, as it will fail with non-adequate
  7119. * XML package (like the ones for PHP4), and it is *not* a static method, so
  7120. * you need to call it on a learnpath object.
  7121. * @TODO The method might be redefined later on in the scorm class itself to avoid
  7122. * creating a SCORM structure if there is one already. However, if the initial SCORM
  7123. * path has been modified, it should use the generic method here below.
  7124. * @TODO link this function with the export_lp() function in the same class
  7125. * @param string Optional name of zip file. If none, title of learnpath is
  7126. * domesticated and trailed with ".zip"
  7127. * @return string Returns the zip package string, or null if error
  7128. */
  7129. public function scorm_export() {
  7130. global $_course;
  7131. // Remove memory and time limits as much as possible as this might be a long process...
  7132. if (function_exists('ini_set')) {
  7133. $mem = ini_get('memory_limit');
  7134. if (substr($mem, -1, 1) == 'M') {
  7135. $mem_num = substr($mem, 0, -1);
  7136. if ($mem_num < 128) {
  7137. ini_set('memory_limit', '128M');
  7138. }
  7139. } else {
  7140. ini_set('memory_limit', '128M');
  7141. }
  7142. ini_set('max_execution_time', 600);
  7143. //} else {
  7144. //error_log('Scorm export: could not change memory and time limits', 0);
  7145. }
  7146. // Create the zip handler (this will remain available throughout the method).
  7147. $archive_path = api_get_path(SYS_ARCHIVE_PATH);
  7148. $sys_course_path = api_get_path(SYS_COURSE_PATH);
  7149. $temp_dir_short = uniqid();
  7150. $temp_zip_dir = $archive_path.'/'.$temp_dir_short;
  7151. $temp_zip_file = $temp_zip_dir.'/'.md5(time()).'.zip';
  7152. $zip_folder = new PclZip($temp_zip_file);
  7153. $current_course_path = api_get_path(SYS_COURSE_PATH).api_get_course_path();
  7154. $root_path = $main_path = api_get_path(SYS_PATH);
  7155. $files_cleanup = array();
  7156. // Place to temporarily stash the zipfiles.
  7157. // create the temp dir if it doesn't exist
  7158. // or do a cleanup befor creating the zipfile.
  7159. if (!is_dir($temp_zip_dir)) {
  7160. mkdir($temp_zip_dir, api_get_permissions_for_new_directories());
  7161. } else {
  7162. // Cleanup: Check the temp dir for old files and delete them.
  7163. $handle = opendir($temp_zip_dir);
  7164. while (false !== ($file = readdir($handle))) {
  7165. if ($file != '.' && $file != '..') {
  7166. unlink("$temp_zip_dir/$file");
  7167. }
  7168. }
  7169. closedir($handle);
  7170. }
  7171. $zip_files = $zip_files_abs = $zip_files_dist = array();
  7172. if (is_dir($current_course_path.'/scorm/'.$this->path) && is_file($current_course_path.'/scorm/'.$this->path.'/imsmanifest.xml')) {
  7173. // Remove the possible . at the end of the path.
  7174. $dest_path_to_lp = substr($this->path, -1) == '.' ? substr($this->path, 0, -1) : $this->path;
  7175. $dest_path_to_scorm_folder = str_replace('//','/',$temp_zip_dir.'/scorm/'.$dest_path_to_lp);
  7176. mkdir($dest_path_to_scorm_folder, api_get_permissions_for_new_directories(), true);
  7177. $zip_files_dist = copyr($current_course_path.'/scorm/'.$this->path, $dest_path_to_scorm_folder, array('imsmanifest'), $zip_files);
  7178. }
  7179. // Build a dummy imsmanifest structure. Do not add to the zip yet (we still need it).
  7180. // This structure is developed following regulations for SCORM 1.2 packaging in the SCORM 1.2 Content
  7181. // Aggregation Model official document, secion "2.3 Content Packaging".
  7182. $xmldoc = new DOMDocument('1.0'); // We are going to build a UTF-8 encoded manifest. Later we will recode it to the desired (and supported) encoding.
  7183. $root = $xmldoc->createElement('manifest');
  7184. $root->setAttribute('identifier', 'SingleCourseManifest');
  7185. $root->setAttribute('version', '1.1');
  7186. $root->setAttribute('xmlns', 'http://www.imsproject.org/xsd/imscp_rootv1p1p2');
  7187. $root->setAttribute('xmlns:adlcp', 'http://www.adlnet.org/xsd/adlcp_rootv1p2');
  7188. $root->setAttribute('xmlns:xsi', 'http://www.w3.org/2001/XMLSchema-instance');
  7189. $root->setAttribute('xsi:schemaLocation', 'http://www.imsproject.org/xsd/imscp_rootv1p1p2 imscp_rootv1p1p2.xsd http://www.imsglobal.org/xsd/imsmd_rootv1p2p1 imsmd_rootv1p2p1.xsd http://www.adlnet.org/xsd/adlcp_rootv1p2 adlcp_rootv1p2.xsd');
  7190. // Build mandatory sub-root container elements.
  7191. $metadata = $xmldoc->createElement('metadata');
  7192. $md_schema = $xmldoc->createElement('schema', 'ADL SCORM');
  7193. $metadata->appendChild($md_schema);
  7194. $md_schemaversion = $xmldoc->createElement('schemaversion', '1.2');
  7195. $metadata->appendChild($md_schemaversion);
  7196. $root->appendChild($metadata);
  7197. $organizations = $xmldoc->createElement('organizations');
  7198. $resources = $xmldoc->createElement('resources');
  7199. // Build the only organization we will use in building our learnpaths.
  7200. $organizations->setAttribute('default', 'chamilo_scorm_export');
  7201. $organization = $xmldoc->createElement('organization');
  7202. $organization->setAttribute('identifier', 'chamilo_scorm_export');
  7203. // To set the title of the SCORM entity (=organization), we take the name given
  7204. // in Chamilo and convert it to HTML entities using the Chamilo charset (not the
  7205. // learning path charset) as it is the encoding that defines how it is stored
  7206. // in the database. Then we convert it to HTML entities again as the "&" character
  7207. // alone is not authorized in XML (must be &amp;).
  7208. // The title is then decoded twice when extracting (see scorm::parse_manifest).
  7209. $org_title = $xmldoc->createElement('title', api_utf8_encode($this->get_name()));
  7210. $organization->appendChild($org_title);
  7211. // For each element, add it to the imsmanifest structure, then add it to the zip.
  7212. // Always call the learnpathItem->scorm_export() method to change it to the SCORM format.
  7213. $link_updates = array();
  7214. foreach ($this->items as $index => $item) {
  7215. if (!in_array($item->type, array(TOOL_QUIZ, TOOL_FORUM, TOOL_THREAD, TOOL_LINK, TOOL_STUDENTPUBLICATION))) {
  7216. // Get included documents from this item.
  7217. if ($item->type == 'sco')
  7218. $inc_docs = $item->get_resources_from_source(null, api_get_path(SYS_COURSE_PATH).api_get_course_path().'/'.'scorm/'.$this->path.'/'.$item->get_path());
  7219. else
  7220. $inc_docs = $item->get_resources_from_source();
  7221. // Give a child element <item> to the <organization> element.
  7222. $my_item_id = $item->get_id();
  7223. $my_item = $xmldoc->createElement('item');
  7224. $my_item->setAttribute('identifier', 'ITEM_'.$my_item_id);
  7225. $my_item->setAttribute('identifierref', 'RESOURCE_'.$my_item_id);
  7226. $my_item->setAttribute('isvisible', 'true');
  7227. // Give a child element <title> to the <item> element.
  7228. $my_title = $xmldoc->createElement('title', htmlspecialchars(api_utf8_encode($item->get_title()), ENT_QUOTES, 'UTF-8'));
  7229. $my_item->appendChild($my_title);
  7230. // Give a child element <adlcp:prerequisites> to the <item> element.
  7231. $my_prereqs = $xmldoc->createElement('adlcp:prerequisites', $this->get_scorm_prereq_string($my_item_id));
  7232. $my_prereqs->setAttribute('type', 'aicc_script');
  7233. $my_item->appendChild($my_prereqs);
  7234. // Give a child element <adlcp:maxtimeallowed> to the <item> element - not yet supported.
  7235. //$xmldoc->createElement('adlcp:maxtimeallowed','');
  7236. // Give a child element <adlcp:timelimitaction> to the <item> element - not yet supported.
  7237. //$xmldoc->createElement('adlcp:timelimitaction','');
  7238. // Give a child element <adlcp:datafromlms> to the <item> element - not yet supported.
  7239. //$xmldoc->createElement('adlcp:datafromlms','');
  7240. // Give a child element <adlcp:masteryscore> to the <item> element.
  7241. $my_masteryscore = $xmldoc->createElement('adlcp:masteryscore', $item->get_mastery_score());
  7242. $my_item->appendChild($my_masteryscore);
  7243. // Attach this item to the organization element or hits parent if there is one.
  7244. if (!empty($item->parent) && $item->parent != 0) {
  7245. $children = $organization->childNodes;
  7246. $possible_parent = &$this->get_scorm_xml_node($children, 'ITEM_'.$item->parent);
  7247. if (is_object($possible_parent)) {
  7248. $possible_parent->appendChild($my_item);
  7249. } else {
  7250. if ($this->debug > 0) { error_log('Parent ITEM_'.$item->parent.' of item ITEM_'.$my_item_id.' not found'); }
  7251. }
  7252. } else {
  7253. if ($this->debug > 0) { error_log('No parent'); }
  7254. $organization->appendChild($my_item);
  7255. }
  7256. // Get the path of the file(s) from the course directory root.
  7257. $my_file_path = $item->get_file_path('scorm/'.$this->path.'/');
  7258. //$my_xml_file_path = api_htmlentities(api_utf8_encode($my_file_path), ENT_QUOTES, 'UTF-8');
  7259. $my_xml_file_path = $my_file_path;
  7260. $my_sub_dir = dirname($my_file_path);
  7261. $my_sub_dir = str_replace('\\', '/', $my_sub_dir);
  7262. //$my_xml_sub_dir = api_htmlentities(api_utf8_encode($my_sub_dir), ENT_QUOTES, 'UTF-8');
  7263. $my_xml_sub_dir = $my_sub_dir;
  7264. // Give a <resource> child to the <resources> element
  7265. $my_resource = $xmldoc->createElement('resource');
  7266. $my_resource->setAttribute('identifier', 'RESOURCE_'.$item->get_id());
  7267. $my_resource->setAttribute('type', 'webcontent');
  7268. $my_resource->setAttribute('href', $my_xml_file_path);
  7269. // adlcp:scormtype can be either 'sco' or 'asset'.
  7270. if ($item->type == 'sco') {
  7271. $my_resource->setAttribute('adlcp:scormtype', 'sco');
  7272. } else {
  7273. $my_resource->setAttribute('adlcp:scormtype', 'asset');
  7274. }
  7275. // xml:base is the base directory to find the files declared in this resource.
  7276. $my_resource->setAttribute('xml:base', '');
  7277. // Give a <file> child to the <resource> element.
  7278. $my_file = $xmldoc->createElement('file');
  7279. $my_file->setAttribute('href', $my_xml_file_path);
  7280. $my_resource->appendChild($my_file);
  7281. // Dependency to other files - not yet supported.
  7282. $i = 1;
  7283. foreach ($inc_docs as $doc_info) {
  7284. if (count($doc_info) < 1 || empty($doc_info[0])) { continue; }
  7285. $my_dep = $xmldoc->createElement('resource');
  7286. $res_id = 'RESOURCE_'.$item->get_id().'_'.$i;
  7287. $my_dep->setAttribute('identifier', $res_id);
  7288. $my_dep->setAttribute('type', 'webcontent');
  7289. $my_dep->setAttribute('adlcp:scormtype', 'asset');
  7290. $my_dep_file = $xmldoc->createElement('file');
  7291. // Check type of URL.
  7292. //error_log(__LINE__.'Now dealing with '.$doc_info[0].' of type '.$doc_info[1].'-'.$doc_info[2], 0);
  7293. if ($doc_info[1] == 'remote') {
  7294. // Remote file. Save url as is.
  7295. $my_dep_file->setAttribute('href', $doc_info[0]);
  7296. $my_dep->setAttribute('xml:base', '');
  7297. } elseif ($doc_info[1] == 'local') {
  7298. switch ($doc_info[2]) {
  7299. case 'url': // Local URL - save path as url for now, don't zip file.
  7300. $abs_path = api_get_path(SYS_PATH).str_replace(api_get_path(WEB_PATH), '', $doc_info[0]);
  7301. $current_dir = dirname($abs_path);
  7302. $current_dir = str_replace('\\', '/', $current_dir);
  7303. $file_path = realpath($abs_path);
  7304. $file_path = str_replace('\\', '/', $file_path);
  7305. $my_dep_file->setAttribute('href', $file_path);
  7306. $my_dep->setAttribute('xml:base', '');
  7307. if (strstr($file_path, $main_path) !== false) {
  7308. // The calculated real path is really inside Chamilo's root path.
  7309. // Reduce file path to what's under the DocumentRoot.
  7310. $file_path = substr($file_path, strlen($root_path) - 1);
  7311. //echo $file_path;echo '<br /><br />';
  7312. //error_log(__LINE__.'Reduced url path: '.$file_path, 0);
  7313. $zip_files_abs[] = $file_path;
  7314. $link_updates[$my_file_path][] = array('orig' => $doc_info[0], 'dest' => $file_path);
  7315. $my_dep_file->setAttribute('href', $file_path);
  7316. $my_dep->setAttribute('xml:base', '');
  7317. }
  7318. elseif (empty($file_path)) {
  7319. /*$document_root = substr(api_get_path(SYS_PATH), 0, strpos(api_get_path(SYS_PATH), api_get_path(REL_PATH)));
  7320. if (strpos($document_root, -1) == '/') {
  7321. $document_root = substr(0, -1, $document_root);
  7322. }*/
  7323. $file_path = $_SERVER['DOCUMENT_ROOT'].$abs_path;
  7324. $file_path = str_replace('//', '/', $file_path);
  7325. if (file_exists($file_path)) {
  7326. $file_path = substr($file_path, strlen($current_dir)); // We get the relative path.
  7327. $zip_files[] = $my_sub_dir.'/'.$file_path;
  7328. $link_updates[$my_file_path][] = array('orig' => $doc_info[0], 'dest' => $file_path);
  7329. $my_dep_file->setAttribute('href', $file_path);
  7330. $my_dep->setAttribute('xml:base', '');
  7331. }
  7332. }
  7333. break;
  7334. case 'abs': // Absolute path from DocumentRoot. Save file and leave path as is in the zip.
  7335. $my_dep_file->setAttribute('href', $doc_info[0]);
  7336. $my_dep->setAttribute('xml:base', '');
  7337. //$current_dir = str_replace('\\', '/', dirname($current_course_path.'/'.$item->get_file_path())).'/';
  7338. // The next lines fix a bug when using the "subdir" mode of Chamilo, whereas
  7339. // an image path would be constructed as /var/www/subdir/subdir/img/foo.bar
  7340. $abs_img_path_without_subdir = $doc_info[0];
  7341. $relp = api_get_path(REL_PATH); // The url-append config param.
  7342. $pos = strpos($abs_img_path_without_subdir, $relp);
  7343. if ($pos === 0) {
  7344. $abs_img_path_without_subdir = '/'.substr($abs_img_path_without_subdir, strlen($relp));
  7345. }
  7346. //$file_path = realpath(api_get_path(SYS_PATH).$doc_info[0]);
  7347. $file_path = realpath(api_get_path(SYS_PATH).$abs_img_path_without_subdir);
  7348. $file_path = str_replace('\\', '/', $file_path);
  7349. $file_path = str_replace('//', '/', $file_path);
  7350. //error_log(__LINE__.'Abs path: '.$file_path, 0);
  7351. // Prepare the current directory path (until just under 'document') with a trailing slash.
  7352. $cur_path = substr($current_course_path, -1) == '/' ? $current_course_path : $current_course_path.'/';
  7353. // Check if the current document is in that path.
  7354. if (strstr($file_path, $cur_path) !== false) {
  7355. // The document is in that path, now get the relative path
  7356. // to the containing document.
  7357. $orig_file_path = dirname($cur_path.$my_file_path).'/';
  7358. $orig_file_path = str_replace('\\', '/', $orig_file_path);
  7359. $relative_path = '';
  7360. if (strstr($file_path, $cur_path) !== false) {
  7361. $relative_path = substr($file_path, strlen($orig_file_path));
  7362. $file_path = substr($file_path, strlen($cur_path));
  7363. } else {
  7364. // This case is still a problem as it's difficult to calculate a relative path easily
  7365. // might still generate wrong links.
  7366. //$file_path = substr($file_path,strlen($cur_path));
  7367. // Calculate the directory path to the current file (without trailing slash).
  7368. $my_relative_path = dirname($file_path);
  7369. $my_relative_path = str_replace('\\', '/', $my_relative_path);
  7370. $my_relative_file = basename($file_path);
  7371. // Calculate the directory path to the containing file (without trailing slash).
  7372. $my_orig_file_path = substr($orig_file_path, 0, -1);
  7373. $dotdot = '';
  7374. $subdir = '';
  7375. while (strstr($my_relative_path, $my_orig_file_path) === false && (strlen($my_orig_file_path) > 1) && (strlen($my_relative_path) > 1)) {
  7376. $my_relative_path2 = dirname($my_relative_path);
  7377. $my_relative_path2 = str_replace('\\', '/', $my_relative_path2);
  7378. $my_orig_file_path = dirname($my_orig_file_path);
  7379. $my_orig_file_path = str_replace('\\', '/', $my_orig_file_path);
  7380. $subdir = substr($my_relative_path, strlen($my_relative_path2) + 1).'/'.$subdir;
  7381. $dotdot += '../';
  7382. $my_relative_path = $my_relative_path2;
  7383. }
  7384. $relative_path = $dotdot.$subdir.$my_relative_file;
  7385. }
  7386. // Put the current document in the zip (this array is the array
  7387. // that will manage documents already in the course folder - relative).
  7388. $zip_files[] = $file_path;
  7389. // Update the links to the current document in the containing document (make them relative).
  7390. $link_updates[$my_file_path][] = array('orig' => $doc_info[0], 'dest' => $relative_path);
  7391. $my_dep_file->setAttribute('href', $file_path);
  7392. $my_dep->setAttribute('xml:base', '');
  7393. }
  7394. elseif (strstr($file_path,$main_path) !== false) {
  7395. // The calculated real path is really inside Chamilo's root path.
  7396. // Reduce file path to what's under the DocumentRoot.
  7397. $file_path = substr($file_path, strlen($root_path));
  7398. //echo $file_path;echo '<br /><br />';
  7399. //error_log('Reduced path: '.$file_path, 0);
  7400. $zip_files_abs[] = $file_path;
  7401. $link_updates[$my_file_path][] = array('orig' => $doc_info[0], 'dest' => $file_path);
  7402. $my_dep_file->setAttribute('href', 'document/'.$file_path);
  7403. $my_dep->setAttribute('xml:base', '');
  7404. }
  7405. elseif (empty($file_path)) {
  7406. /*$document_root = substr(api_get_path(SYS_PATH), 0, strpos(api_get_path(SYS_PATH), api_get_path(REL_PATH)));
  7407. if(strpos($document_root,-1) == '/') {
  7408. $document_root = substr(0, -1, $document_root);
  7409. }*/
  7410. $file_path = $_SERVER['DOCUMENT_ROOT'].$doc_info[0];
  7411. $file_path = str_replace('//', '/', $file_path);
  7412. if (file_exists($file_path)) {
  7413. $file_path = substr($file_path,strlen($current_dir)); // We get the relative path.
  7414. $zip_files[] = $my_sub_dir.'/'.$file_path;
  7415. $link_updates[$my_file_path][] = array('orig' => $doc_info[0], 'dest' => $file_path);
  7416. $my_dep_file->setAttribute('href','document/'.$file_path);
  7417. $my_dep->setAttribute('xml:base', '');
  7418. }
  7419. }
  7420. break;
  7421. case 'rel': // Path relative to the current document. Save xml:base as current document's directory and save file in zip as subdir.file_path
  7422. if (substr($doc_info[0], 0, 2) == '..') {
  7423. // Relative path going up.
  7424. $current_dir = dirname($current_course_path.'/'.$item->get_file_path()).'/';
  7425. $current_dir = str_replace('\\', '/', $current_dir);
  7426. $file_path = realpath($current_dir.$doc_info[0]);
  7427. $file_path = str_replace('\\', '/', $file_path);
  7428. //error_log($file_path.' <-> '.$main_path,0);
  7429. if (strstr($file_path, $main_path) !== false) {
  7430. // The calculated real path is really inside Chamilo's root path.
  7431. // Reduce file path to what's under the DocumentRoot.
  7432. $file_path = substr($file_path, strlen($root_path));
  7433. //error_log('Reduced path: '.$file_path, 0);
  7434. $zip_files_abs[] = $file_path;
  7435. $link_updates[$my_file_path][] = array('orig' => $doc_info[0], 'dest' => $file_path);
  7436. $my_dep_file->setAttribute('href', 'document/'.$file_path);
  7437. $my_dep->setAttribute('xml:base', '');
  7438. }
  7439. } else {
  7440. $zip_files[] = $my_sub_dir.'/'.$doc_info[0];
  7441. $my_dep_file->setAttribute('href', $doc_info[0]);
  7442. $my_dep->setAttribute('xml:base', $my_xml_sub_dir);
  7443. }
  7444. break;
  7445. default:
  7446. $my_dep_file->setAttribute('href', $doc_info[0]);
  7447. $my_dep->setAttribute('xml:base', '');
  7448. break;
  7449. }
  7450. }
  7451. $my_dep->appendChild($my_dep_file);
  7452. $resources->appendChild($my_dep);
  7453. $dependency = $xmldoc->createElement('dependency');
  7454. $dependency->setAttribute('identifierref', $res_id);
  7455. $my_resource->appendChild($dependency);
  7456. $i++;
  7457. }
  7458. //$my_dependency = $xmldoc->createElement('dependency');
  7459. //$my_dependency->setAttribute('identifierref', '');
  7460. $resources->appendChild($my_resource);
  7461. $zip_files[] = $my_file_path;
  7462. //error_log('File '.$my_file_path. ' added to $zip_files', 0);
  7463. } else {
  7464. // If the item is a quiz or a link or whatever non-exportable, we include a step indicating it.
  7465. if ($item->type == TOOL_LINK) {
  7466. $my_item = $xmldoc->createElement('item');
  7467. $my_item->setAttribute('identifier', 'ITEM_'.$item->get_id());
  7468. $my_item->setAttribute('identifierref', 'RESOURCE_'.$item->get_id());
  7469. $my_item->setAttribute('isvisible', 'true');
  7470. // Give a child element <title> to the <item> element.
  7471. $my_title = $xmldoc->createElement('title', htmlspecialchars(api_utf8_encode($item->get_title()), ENT_QUOTES, 'UTF-8'));
  7472. $my_item->appendChild($my_title);
  7473. // Give a child element <adlcp:prerequisites> to the <item> element.
  7474. $my_prereqs = $xmldoc->createElement('adlcp:prerequisites', $item->get_prereq_string());
  7475. $my_prereqs->setAttribute('type', 'aicc_script');
  7476. $my_item->appendChild($my_prereqs);
  7477. // Give a child element <adlcp:maxtimeallowed> to the <item> element - not yet supported.
  7478. //$xmldoc->createElement('adlcp:maxtimeallowed', '');
  7479. // Give a child element <adlcp:timelimitaction> to the <item> element - not yet supported.
  7480. //$xmldoc->createElement('adlcp:timelimitaction', '');
  7481. // Give a child element <adlcp:datafromlms> to the <item> element - not yet supported.
  7482. //$xmldoc->createElement('adlcp:datafromlms', '');
  7483. // Give a child element <adlcp:masteryscore> to the <item> element.
  7484. $my_masteryscore = $xmldoc->createElement('adlcp:masteryscore', $item->get_mastery_score());
  7485. $my_item->appendChild($my_masteryscore);
  7486. // Attach this item to the organization element or its parent if there is one.
  7487. if (!empty($item->parent) && $item->parent != 0) {
  7488. $children = $organization->childNodes;
  7489. for ($i = 0; $i < $children->length; $i++) {
  7490. $item_temp = $children->item($i);
  7491. if ($item_temp -> nodeName == 'item') {
  7492. if ($item_temp->getAttribute('identifier') == 'ITEM_'.$item->parent) {
  7493. $item_temp -> appendChild($my_item);
  7494. }
  7495. }
  7496. }
  7497. } else {
  7498. $organization->appendChild($my_item);
  7499. }
  7500. $my_file_path = 'link_'.$item->get_id().'.html';
  7501. $sql = 'SELECT url, title FROM '.Database :: get_course_table(TABLE_LINK).' WHERE id='.$item->path;
  7502. $rs = Database::query($sql);
  7503. if ($link = Database :: fetch_array($rs)) {
  7504. $url = $link['url'];
  7505. $title = stripslashes($link['title']);
  7506. $links_to_create[$my_file_path] = array('title' => $title, 'url' => $url);
  7507. //$my_xml_file_path = api_htmlentities(api_utf8_encode($my_file_path), ENT_QUOTES, 'UTF-8');
  7508. $my_xml_file_path = $my_file_path;
  7509. $my_sub_dir = dirname($my_file_path);
  7510. $my_sub_dir = str_replace('\\', '/', $my_sub_dir);
  7511. //$my_xml_sub_dir = api_htmlentities(api_utf8_encode($my_sub_dir), ENT_QUOTES, 'UTF-8');
  7512. $my_xml_sub_dir = $my_sub_dir;
  7513. // Give a <resource> child to the <resources> element.
  7514. $my_resource = $xmldoc->createElement('resource');
  7515. $my_resource->setAttribute('identifier', 'RESOURCE_'.$item->get_id());
  7516. $my_resource->setAttribute('type', 'webcontent');
  7517. $my_resource->setAttribute('href', $my_xml_file_path);
  7518. // adlcp:scormtype can be either 'sco' or 'asset'.
  7519. $my_resource->setAttribute('adlcp:scormtype', 'asset');
  7520. // xml:base is the base directory to find the files declared in this resource.
  7521. $my_resource->setAttribute('xml:base', '');
  7522. // give a <file> child to the <resource> element.
  7523. $my_file = $xmldoc->createElement('file');
  7524. $my_file->setAttribute('href', $my_xml_file_path);
  7525. $my_resource->appendChild($my_file);
  7526. $resources->appendChild($my_resource);
  7527. }
  7528. }
  7529. elseif ($item->type == TOOL_QUIZ) {
  7530. require_once api_get_path(SYS_CODE_PATH).'exercice/exercise.class.php';
  7531. $exe_id = $item->path; // Should be using ref when everything will be cleaned up in this regard.
  7532. $exe = new Exercise();
  7533. $exe->read($exe_id);
  7534. $my_item = $xmldoc->createElement('item');
  7535. $my_item->setAttribute('identifier', 'ITEM_'.$item->get_id());
  7536. $my_item->setAttribute('identifierref', 'RESOURCE_'.$item->get_id());
  7537. $my_item->setAttribute('isvisible', 'true');
  7538. // Give a child element <title> to the <item> element.
  7539. $my_title = $xmldoc->createElement('title', htmlspecialchars(api_utf8_encode($item->get_title()), ENT_QUOTES, 'UTF-8'));
  7540. $my_item->appendChild($my_title);
  7541. $my_max_score = $xmldoc->createElement('max_score', $item->get_max());
  7542. //$my_item->appendChild($my_max_score);
  7543. // Give a child element <adlcp:prerequisites> to the <item> element.
  7544. $my_prereqs = $xmldoc->createElement('adlcp:prerequisites', $item->get_prereq_string());
  7545. $my_prereqs->setAttribute('type','aicc_script');
  7546. $my_item->appendChild($my_prereqs);
  7547. // Give a child element <adlcp:masteryscore> to the <item> element.
  7548. $my_masteryscore = $xmldoc->createElement('adlcp:masteryscore', $item->get_mastery_score());
  7549. $my_item->appendChild($my_masteryscore);
  7550. // Attach this item to the organization element or hits parent if there is one.
  7551. if (!empty($item->parent) && $item->parent != 0) {
  7552. $children = $organization->childNodes;
  7553. for ($i = 0; $i < $children->length; $i++) {
  7554. $item_temp = $children->item($i);
  7555. if ($item_temp -> nodeName == 'item') {
  7556. if ($item_temp->getAttribute('identifier') == 'ITEM_'.$item->parent) {
  7557. $item_temp -> appendChild($my_item);
  7558. }
  7559. }
  7560. }
  7561. } else {
  7562. $organization->appendChild($my_item);
  7563. }
  7564. // Include export scripts.
  7565. require_once api_get_path(SYS_CODE_PATH).'exercice/export/scorm/scorm_export.php';
  7566. // Get the path of the file(s) from the course directory root
  7567. //$my_file_path = $item->get_file_path('scorm/'.$this->path.'/');
  7568. $my_file_path = 'quiz_'.$item->get_id().'.html';
  7569. // Write the contents of the exported exercise into a (big) html file
  7570. // to later pack it into the exported SCORM. The file will be removed afterwards.
  7571. $contents = export_exercise($exe_id,true);
  7572. $tmp_file_path = $archive_path.$temp_dir_short.'/'.$my_file_path;
  7573. $res = file_put_contents($tmp_file_path, $contents);
  7574. if ($res === false) { error_log('Could not write into file '.$tmp_file_path.' '.__FILE__.' '.__LINE__, 0); }
  7575. $files_cleanup[] = $tmp_file_path;
  7576. //error_log($tmp_path); die();
  7577. //$my_xml_file_path = api_htmlentities(api_utf8_encode($my_file_path), ENT_QUOTES, 'UTF-8');
  7578. $my_xml_file_path = $my_file_path;
  7579. $my_sub_dir = dirname($my_file_path);
  7580. $my_sub_dir = str_replace('\\', '/', $my_sub_dir);
  7581. //$my_xml_sub_dir = api_htmlentities(api_utf8_encode($my_sub_dir), ENT_QUOTES, 'UTF-8');
  7582. $my_xml_sub_dir = $my_sub_dir;
  7583. // Give a <resource> child to the <resources> element.
  7584. $my_resource = $xmldoc->createElement('resource');
  7585. $my_resource->setAttribute('identifier', 'RESOURCE_'.$item->get_id());
  7586. $my_resource->setAttribute('type', 'webcontent');
  7587. $my_resource->setAttribute('href', $my_xml_file_path);
  7588. // adlcp:scormtype can be either 'sco' or 'asset'.
  7589. $my_resource->setAttribute('adlcp:scormtype', 'sco');
  7590. // xml:base is the base directory to find the files declared in this resource.
  7591. $my_resource->setAttribute('xml:base', '');
  7592. // Give a <file> child to the <resource> element.
  7593. $my_file = $xmldoc->createElement('file');
  7594. $my_file->setAttribute('href', $my_xml_file_path);
  7595. $my_resource->appendChild($my_file);
  7596. // Get included docs.
  7597. $inc_docs = $item->get_resources_from_source(null,$tmp_file_path);
  7598. // Dependency to other files - not yet supported.
  7599. $i = 1;
  7600. foreach ($inc_docs as $doc_info) {
  7601. if (count($doc_info) < 1 || empty($doc_info[0])) { continue; }
  7602. $my_dep = $xmldoc->createElement('resource');
  7603. $res_id = 'RESOURCE_'.$item->get_id().'_'.$i;
  7604. $my_dep->setAttribute('identifier', $res_id);
  7605. $my_dep->setAttribute('type', 'webcontent');
  7606. $my_dep->setAttribute('adlcp:scormtype', 'asset');
  7607. $my_dep_file = $xmldoc->createElement('file');
  7608. // Check type of URL.
  7609. //error_log(__LINE__.'Now dealing with '.$doc_info[0].' of type '.$doc_info[1].'-'.$doc_info[2], 0);
  7610. if ($doc_info[1] == 'remote') {
  7611. // Remote file. Save url as is.
  7612. $my_dep_file->setAttribute('href', $doc_info[0]);
  7613. $my_dep->setAttribute('xml:base', '');
  7614. } elseif ($doc_info[1] == 'local') {
  7615. switch ($doc_info[2]) {
  7616. case 'url': // Local URL - save path as url for now, don't zip file.
  7617. // Save file but as local file (retrieve from URL).
  7618. $abs_path = api_get_path(SYS_PATH).str_replace(api_get_path(WEB_PATH), '', $doc_info[0]);
  7619. $current_dir = dirname($abs_path);
  7620. $current_dir = str_replace('\\', '/', $current_dir);
  7621. $file_path = realpath($abs_path);
  7622. $file_path = str_replace('\\', '/', $file_path);
  7623. $my_dep_file->setAttribute('href', 'document/'.$file_path);
  7624. $my_dep->setAttribute('xml:base', '');
  7625. if (strstr($file_path, $main_path) !== false) {
  7626. // The calculated real path is really inside the chamilo root path.
  7627. // Reduce file path to what's under the DocumentRoot.
  7628. $file_path = substr($file_path, strlen($root_path));
  7629. //echo $file_path;echo '<br /><br />';
  7630. //error_log('Reduced path: '.$file_path, 0);
  7631. $zip_files_abs[] = $file_path;
  7632. $link_updates[$my_file_path][] = array('orig' => $doc_info[0], 'dest' => 'document/'.$file_path);
  7633. $my_dep_file->setAttribute('href', 'document/'.$file_path);
  7634. $my_dep->setAttribute('xml:base', '');
  7635. }
  7636. elseif (empty($file_path)) {
  7637. /*$document_root = substr(api_get_path(SYS_PATH), 0, strpos(api_get_path(SYS_PATH),api_get_path(REL_PATH)));
  7638. if (strpos($document_root,-1) == '/') {
  7639. $document_root = substr(0, -1, $document_root);
  7640. }*/
  7641. $file_path = $_SERVER['DOCUMENT_ROOT'].$abs_path;
  7642. $file_path = str_replace('//', '/', $file_path);
  7643. if (file_exists($file_path)) {
  7644. $file_path = substr($file_path, strlen($current_dir)); // We get the relative path.
  7645. $zip_files[] = $my_sub_dir.'/'.$file_path;
  7646. $link_updates[$my_file_path][] = array('orig' => $doc_info[0], 'dest' => 'document/'.$file_path);
  7647. $my_dep_file->setAttribute('href', 'document/'.$file_path);
  7648. $my_dep->setAttribute('xml:base', '');
  7649. }
  7650. }
  7651. break;
  7652. case 'abs': // Absolute path from DocumentRoot. Save file and leave path as is in the zip.
  7653. $current_dir = dirname($current_course_path.'/'.$item->get_file_path()).'/';
  7654. $current_dir = str_replace('\\', '/', $current_dir);
  7655. $file_path = realpath($doc_info[0]);
  7656. $file_path = str_replace('\\', '/', $file_path);
  7657. $my_dep_file->setAttribute('href', $file_path);
  7658. $my_dep->setAttribute('xml:base', '');
  7659. if (strstr($file_path,$main_path) !== false) {
  7660. // The calculated real path is really inside the chamilo root path.
  7661. // Reduce file path to what's under the DocumentRoot.
  7662. $file_path = substr($file_path, strlen($root_path));
  7663. //echo $file_path;echo '<br /><br />';
  7664. //error_log('Reduced path: '.$file_path, 0);
  7665. $zip_files_abs[] = $file_path;
  7666. $link_updates[$my_file_path][] = array('orig' => $doc_info[0], 'dest' => $file_path);
  7667. $my_dep_file->setAttribute('href', 'document/'.$file_path);
  7668. $my_dep->setAttribute('xml:base', '');
  7669. }
  7670. elseif (empty($file_path)) {
  7671. /*$document_root = substr(api_get_path(SYS_PATH), 0, strpos(api_get_path(SYS_PATH), api_get_path(REL_PATH)));
  7672. if (strpos($document_root,-1) == '/') {
  7673. $document_root = substr(0, -1, $document_root);
  7674. }*/
  7675. $file_path = $_SERVER['DOCUMENT_ROOT'].$doc_info[0];
  7676. $file_path = str_replace('//', '/', $file_path);
  7677. if (file_exists($file_path)) {
  7678. $file_path = substr($file_path,strlen($current_dir)); // We get the relative path.
  7679. $zip_files[] = $my_sub_dir.'/'.$file_path;
  7680. $link_updates[$my_file_path][] = array('orig' => $doc_info[0], 'dest' => $file_path);
  7681. $my_dep_file->setAttribute('href', 'document/'.$file_path);
  7682. $my_dep->setAttribute('xml:base', '');
  7683. }
  7684. }
  7685. break;
  7686. case 'rel': // Path relative to the current document. Save xml:base as current document's directory and save file in zip as subdir.file_path
  7687. if (substr($doc_info[0], 0, 2) == '..') {
  7688. // Relative path going up.
  7689. $current_dir = dirname($current_course_path.'/'.$item->get_file_path()).'/';
  7690. $current_dir = str_replace('\\', '/', $current_dir);
  7691. $file_path = realpath($current_dir.$doc_info[0]);
  7692. $file_path = str_replace('\\', '/', $file_path);
  7693. //error_log($file_path.' <-> '.$main_path, 0);
  7694. if (strstr($file_path, $main_path) !== false) {
  7695. // The calculated real path is really inside Chamilo's root path.
  7696. // Reduce file path to what's under the DocumentRoot.
  7697. $file_path = substr($file_path, strlen($root_path));
  7698. $file_path_dest = $file_path;
  7699. // File path is courses/CHAMILO/document/....
  7700. $info_file_path = explode('/', $file_path);
  7701. if ($info_file_path[0] == 'courses') { // Add character "/" in file path.
  7702. $file_path_dest = 'document/'.$file_path;
  7703. }
  7704. //error_log('Reduced path: '.$file_path, 0);
  7705. $zip_files_abs[] = $file_path;
  7706. $link_updates[$my_file_path][] = array('orig' => $doc_info[0], 'dest' => $file_path_dest);
  7707. $my_dep_file->setAttribute('href', 'document/'.$file_path);
  7708. $my_dep->setAttribute('xml:base', '');
  7709. }
  7710. } else {
  7711. $zip_files[] = $my_sub_dir.'/'.$doc_info[0];
  7712. $my_dep_file->setAttribute('href', $doc_info[0]);
  7713. $my_dep->setAttribute('xml:base', $my_xml_sub_dir);
  7714. }
  7715. break;
  7716. default:
  7717. $my_dep_file->setAttribute('href', $doc_info[0]); // ../../courses/
  7718. $my_dep->setAttribute('xml:base', '');
  7719. break;
  7720. }
  7721. }
  7722. $my_dep->appendChild($my_dep_file);
  7723. $resources->appendChild($my_dep);
  7724. $dependency = $xmldoc->createElement('dependency');
  7725. $dependency->setAttribute('identifierref', $res_id);
  7726. $my_resource->appendChild($dependency);
  7727. $i++;
  7728. }
  7729. $resources->appendChild($my_resource);
  7730. $zip_files[] = $my_file_path;
  7731. } else {
  7732. // Get the path of the file(s) from the course directory root
  7733. $my_file_path = 'non_exportable.html';
  7734. //$my_xml_file_path = api_htmlentities(api_utf8_encode($my_file_path), ENT_COMPAT, 'UTF-8');
  7735. $my_xml_file_path = $my_file_path;
  7736. $my_sub_dir = dirname($my_file_path);
  7737. $my_sub_dir = str_replace('\\', '/', $my_sub_dir);
  7738. //$my_xml_sub_dir = api_htmlentities(api_utf8_encode($my_sub_dir), ENT_COMPAT, 'UTF-8');
  7739. $my_xml_sub_dir = $my_sub_dir;
  7740. // Give a <resource> child to the <resources> element.
  7741. $my_resource = $xmldoc->createElement('resource');
  7742. $my_resource->setAttribute('identifier', 'RESOURCE_'.$item->get_id());
  7743. $my_resource->setAttribute('type', 'webcontent');
  7744. $my_resource->setAttribute('href', 'document/'.$my_xml_file_path);
  7745. // adlcp:scormtype can be either 'sco' or 'asset'.
  7746. $my_resource->setAttribute('adlcp:scormtype', 'asset');
  7747. // xml:base is the base directory to find the files declared in this resource.
  7748. $my_resource->setAttribute('xml:base', '');
  7749. // Give a <file> child to the <resource> element.
  7750. $my_file = $xmldoc->createElement('file');
  7751. $my_file->setAttribute('href', 'document/'.$my_xml_file_path);
  7752. $my_resource->appendChild($my_file);
  7753. $resources->appendChild($my_resource);
  7754. }
  7755. }
  7756. }
  7757. $organizations->appendChild($organization);
  7758. $root->appendChild($organizations);
  7759. $root->appendChild($resources);
  7760. $xmldoc->appendChild($root);
  7761. // TODO: Add a readme file here, with a short description and a link to the Reload player
  7762. // then add the file to the zip, then destroy the file (this is done automatically).
  7763. // http://www.reload.ac.uk/scormplayer.html - once done, don't forget to close FS#138
  7764. //error_log(print_r($zip_files,true), 0);
  7765. foreach ($zip_files as $file_path) {
  7766. if (empty($file_path)) { continue; }
  7767. //error_log(__LINE__.'getting document from '.$sys_course_path.$_course['path'].'/'.$file_path.' removing '.$sys_course_path.$_course['path'].'/',0);
  7768. $dest_file = $archive_path.$temp_dir_short.'/'.$file_path;
  7769. $this->create_path($dest_file);
  7770. //error_log('copy '.api_get_path(SYS_COURSE_PATH).$_course['path'].'/'.$file_path.' to '.api_get_path(SYS_ARCHIVE_PATH).$temp_dir_short.'/'.$file_path,0);
  7771. //echo $main_path.$file_path.'<br />';
  7772. @copy($sys_course_path.$_course['path'].'/'.$file_path, $dest_file);
  7773. // Check if the file needs a link update.
  7774. if (in_array($file_path, array_keys($link_updates))) {
  7775. $string = file_get_contents($dest_file);
  7776. unlink($dest_file);
  7777. foreach ($link_updates[$file_path] as $old_new) {
  7778. //error_log('Replacing '.$old_new['orig'].' by '.$old_new['dest'].' in '.$file_path, 0);
  7779. // This is an ugly hack that allows .flv files to be found by the flv player that
  7780. // will be added in document/main/inc/lib/flv_player/flv_player.swf and that needs
  7781. // to find the flv to play in document/main/, so we replace main/ in the flv path by
  7782. // ../../.. to return from inc/lib/flv_player to the document/main path.
  7783. if (substr($old_new['dest'], -3) == 'flv' && substr($old_new['dest'], 0, 5) == 'main/') {
  7784. $old_new['dest'] = str_replace('main/', '../../../', $old_new['dest']);
  7785. }
  7786. elseif (substr($old_new['dest'], -3) == 'flv' && substr($old_new['dest'], 0, 6) == 'video/') {
  7787. $old_new['dest'] = str_replace('video/', '../../../../video/', $old_new['dest']);
  7788. }
  7789. $string = str_replace($old_new['orig'], $old_new['dest'], $string);
  7790. }
  7791. file_put_contents($dest_file, $string);
  7792. }
  7793. }
  7794. foreach ($zip_files_abs as $file_path) {
  7795. if (empty($file_path)) { continue; }
  7796. //error_log(__LINE__.'checking existence of '.$main_path.$file_path.'', 0);
  7797. if (!is_file($main_path.$file_path) || !is_readable($main_path.$file_path)) { continue; }
  7798. //error_log(__LINE__.'getting document from '.$main_path.$file_path.' removing '.api_get_path(SYS_COURSE_PATH).$_course['path'].'/', 0);
  7799. $dest_file = $archive_path.$temp_dir_short.'/document/'.$file_path;
  7800. $this->create_path($dest_file);
  7801. //error_log('Created path '.api_get_path(SYS_ARCHIVE_PATH).$temp_dir_short.'/document/'.$file_path, 0);
  7802. //error_log('copy '.api_get_path(SYS_COURSE_PATH).$_course['path'].'/'.$file_path.' to '.api_get_path(SYS_ARCHIVE_PATH).$temp_dir_short.'/'.$file_path, 0);
  7803. //echo $main_path.$file_path.' - '.$dest_file.'<br />';
  7804. copy($main_path.$file_path, $dest_file);
  7805. // Check if the file needs a link update.
  7806. if (in_array($file_path, array_keys($link_updates))) {
  7807. $string = file_get_contents($dest_file);
  7808. unlink($dest_file);
  7809. foreach ($link_updates[$file_path] as $old_new) {
  7810. //error_log('Replacing '.$old_new['orig'].' by '.$old_new['dest'].' in '.$file_path, 0);
  7811. // This is an ugly hack that allows .flv files to be found by the flv player that
  7812. // will be added in document/main/inc/lib/flv_player/flv_player.swf and that needs
  7813. // to find the flv to play in document/main/, so we replace main/ in the flv path by
  7814. // ../../.. to return from inc/lib/flv_player to the document/main path.
  7815. if (substr($old_new['dest'], -3) == 'flv' && substr($old_new['dest'], 0, 5) == 'main/') {
  7816. $old_new['dest'] = str_replace('main/', '../../../', $old_new['dest']);
  7817. }
  7818. $string = str_replace($old_new['orig'], $old_new['dest'], $string);
  7819. }
  7820. file_put_contents($dest_file, $string);
  7821. }
  7822. }
  7823. if (is_array($links_to_create)) {
  7824. foreach ($links_to_create as $file => $link) {
  7825. $file_content = '<!DOCTYPE html
  7826. PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  7827. "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  7828. <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="'.api_get_language_isocode().'" lang="'.api_get_language_isocode().'">
  7829. <head>
  7830. <title>'.$link['title'].'</title>
  7831. <meta http-equiv="Content-Type" content="text/html; charset='.api_get_system_encoding().'" />
  7832. </head>
  7833. <body dir="'.api_get_text_direction().'">
  7834. <div style="text-align:center"><a href="'.$link['url'].'">'.$link['title'].'</a></div>
  7835. </body>
  7836. </html>';
  7837. file_put_contents($archive_path.$temp_dir_short.'/'.$file, $file_content);
  7838. }
  7839. }
  7840. // Add non exportable message explanation.
  7841. $lang_not_exportable = get_lang('ThisItemIsNotExportable');
  7842. $file_content = '<!DOCTYPE html
  7843. PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  7844. "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  7845. <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="'.api_get_language_isocode().'" lang="'.api_get_language_isocode().'">
  7846. <head>
  7847. <title>'.$lang_not_exportable.'</title>
  7848. <meta http-equiv="Content-Type" content="text/html; charset='.api_get_system_encoding().'" />
  7849. </head>
  7850. <body dir="'.api_get_text_direction().'">
  7851. ';
  7852. $file_content .=
  7853. <<<EOD
  7854. <style>
  7855. .error-message {
  7856. font-family: arial, verdana, helvetica, sans-serif;
  7857. border-width: 1px;
  7858. border-style: solid;
  7859. left: 50%;
  7860. margin: 10px auto;
  7861. min-height: 30px;
  7862. padding: 5px;
  7863. right: 50%;
  7864. width: 500px;
  7865. background-color: #FFD1D1;
  7866. border-color: #FF0000;
  7867. color: #000;
  7868. }
  7869. </style>
  7870. <body>
  7871. <div class="error-message">
  7872. $lang_not_exportable
  7873. </div>
  7874. </body>
  7875. </html>
  7876. EOD;
  7877. if (!is_dir($archive_path.$temp_dir_short.'/document')) {
  7878. @mkdir($archive_path.$temp_dir_short.'/document', api_get_permissions_for_new_directories());
  7879. }
  7880. file_put_contents($archive_path.$temp_dir_short.'/document/non_exportable.html', $file_content);
  7881. // Add the extra files that go along with a SCORM package.
  7882. $main_code_path = api_get_path(SYS_CODE_PATH).'newscorm/packaging/';
  7883. $extra_files = scandir($main_code_path);
  7884. foreach ($extra_files as $extra_file) {
  7885. if (strpos($extra_file, '.') === 0)
  7886. continue;
  7887. else {
  7888. $dest_file = $archive_path . $temp_dir_short . '/' . $extra_file;
  7889. $this->create_path($dest_file);
  7890. copy($main_code_path.$extra_file, $dest_file);
  7891. }
  7892. }
  7893. // Finalize the imsmanifest structure, add to the zip, then return the zip.
  7894. $manifest = @$xmldoc->saveXML();
  7895. $manifest = api_utf8_decode_xml($manifest); // The manifest gets the system encoding now.
  7896. file_put_contents($archive_path.'/'.$temp_dir_short.'/imsmanifest.xml', $manifest);
  7897. $zip_folder->add($archive_path.'/'.$temp_dir_short, PCLZIP_OPT_REMOVE_PATH, $archive_path.'/'.$temp_dir_short.'/');
  7898. // Clean possible temporary files.
  7899. foreach ($files_cleanup as $file) {
  7900. $res = unlink($file);
  7901. if ($res === false) { error_log('Could not delete temp file '.$file.' '.__FILE__.' '.__LINE__, 0); }
  7902. }
  7903. // Send file to client.
  7904. //$name = 'scorm_export_'.$this->lp_id.'.zip';
  7905. require_once api_get_path(LIBRARY_PATH).'fileUpload.lib.php';
  7906. $name = replace_dangerous_char($this->get_name()).'.zip';
  7907. DocumentManager::file_send_for_download($temp_zip_file, true, $name);
  7908. }
  7909. public function scorm_export_to_pdf($lp_id) {
  7910. $lp_id = intval($lp_id);
  7911. $files_to_export = array();
  7912. $course_data = api_get_course_info($this->cc);
  7913. if (!empty($course_data)) {
  7914. $scorm_path = api_get_path(SYS_COURSE_PATH).$course_data['path'].'/scorm/'.$this->path;
  7915. require_once api_get_path(LIBRARY_PATH).'document.lib.php';
  7916. $list = $this->get_flat_ordered_items_list($lp_id);
  7917. foreach($list as $item_id) {
  7918. $item = $this->items[$item_id];
  7919. //Getting documents from a LP with chamilo documents
  7920. switch ($item->type) {
  7921. case 'document':
  7922. $file_data = DocumentManager::get_document_data_by_id($item->path, $this->cc);
  7923. $file_path = api_get_path(SYS_COURSE_PATH).$course_data['path'].'/document'.$file_data['path'];
  7924. if (file_exists($file_path)) {
  7925. $files_to_export[] = array('title'=>$item->get_title(),'path'=>$file_path);
  7926. }
  7927. break;
  7928. case 'sco':
  7929. $file_path = $scorm_path.'/'.$item->path;
  7930. if (file_exists($file_path)) {
  7931. $files_to_export[] = array('title'=>$item->get_title(),'path'=>$file_path);
  7932. }
  7933. break;
  7934. case 'dokeos_chapter':
  7935. case 'dir':
  7936. case 'chapter':
  7937. $files_to_export[] = array('title'=>$item->get_title(),'path'=>null);
  7938. break;
  7939. }
  7940. }
  7941. require_once api_get_path(LIBRARY_PATH).'pdf.lib.php';
  7942. $pdf = new PDF();
  7943. $result = $pdf->html_to_pdf($files_to_export, $this->name, $this->cc, true);
  7944. return $result;
  7945. }
  7946. return false;
  7947. }
  7948. /**
  7949. * Temp function to be moved in main_api or the best place around for this. Creates a file path
  7950. * if it doesn't exist
  7951. */
  7952. public function create_path($path) {
  7953. $path_bits = split('/', dirname($path));
  7954. // IS_WINDOWS_OS has been defined in main_api.lib.php
  7955. $path_built = IS_WINDOWS_OS ? '' : '/';
  7956. foreach ($path_bits as $bit) {
  7957. if (!empty ($bit)) {
  7958. $new_path = $path_built . $bit;
  7959. if (is_dir($new_path)) {
  7960. $path_built = $new_path . '/';
  7961. } else {
  7962. mkdir($new_path, api_get_permissions_for_new_directories());
  7963. $path_built = $new_path . '/';
  7964. }
  7965. }
  7966. }
  7967. }
  7968. /**
  7969. * Delete the image relative to this learning path. No parameter. Only works on instanciated object.
  7970. * @return boolean The results of the unlink function, or false if there was no image to start with
  7971. */
  7972. public function delete_lp_image() {
  7973. $img = $this->get_preview_image();
  7974. if ($img != '') {
  7975. $del_file = api_get_path(SYS_COURSE_PATH) . api_get_course_path() . '/upload/learning_path/images/' . $img;
  7976. $this->set_preview_image('');
  7977. return @ unlink($del_file);
  7978. } else {
  7979. return false;
  7980. }
  7981. }
  7982. /**
  7983. * Uploads an author image to the upload/learning_path/images directory
  7984. * @param array The image array, coming from the $_FILES superglobal
  7985. * @return boolean True on success, false on error
  7986. */
  7987. public function upload_image($image_array) {
  7988. $image_moved = false;
  7989. if (!empty ($image_array['name'])) {
  7990. $upload_ok = process_uploaded_file($image_array);
  7991. $has_attachment = true;
  7992. } else {
  7993. $image_moved = true;
  7994. }
  7995. if ($upload_ok) {
  7996. if ($has_attachment) {
  7997. $courseDir = api_get_course_path() . '/upload/learning_path/images';
  7998. $sys_course_path = api_get_path(SYS_COURSE_PATH);
  7999. $updir = $sys_course_path . $courseDir;
  8000. // Try to add an extension to the file if it hasn't one.
  8001. $new_file_name = add_ext_on_mime(stripslashes($image_array['name']), $image_array['type']);
  8002. if (!filter_extension($new_file_name)) {
  8003. //Display :: display_error_message(get_lang('UplUnableToSaveFileFilteredExtension'));
  8004. $image_moved = false;
  8005. } else {
  8006. $file_extension = explode('.', $image_array['name']);
  8007. $file_extension = strtolower($file_extension[sizeof($file_extension) - 1]);
  8008. $new_file_name = uniqid('') . '.' . $file_extension;
  8009. $new_path = $updir . '/' . $new_file_name;
  8010. // Resize the image.
  8011. $temp = new Image($image_array['tmp_name']);
  8012. $picture_infos = $temp->get_image_info();
  8013. if ($picture_infos['width'] > 104) {
  8014. $thumbwidth = 104;
  8015. } else {
  8016. $thumbwidth = $picture_infos['width'];
  8017. }
  8018. if ($picture_infos['height'] > 96) {
  8019. $new_height = 96;
  8020. } else {
  8021. $new_height = $picture_infos['height'];
  8022. }
  8023. $temp->resize($thumbwidth, $new_height, 0);
  8024. $result = $temp->send_image($new_path);
  8025. // Storing the image filename.
  8026. if ($result) {
  8027. $image_moved = true;
  8028. $this->set_preview_image($new_file_name);
  8029. return true;
  8030. }
  8031. }
  8032. }
  8033. }
  8034. return false;
  8035. }
  8036. public function set_autolunch($lp_id, $status) {
  8037. $lp_id = intval($lp_id);
  8038. $status = intval($status);
  8039. $lp_table = Database::get_course_table(TABLE_LP_MAIN);
  8040. //Setting everything to autolunch = 0
  8041. $attributes['autolunch'] = 0;
  8042. $where = array('session_id = ? '=> api_get_session_id());
  8043. Database::update($lp_table, $attributes,$where);
  8044. if ($status == 1) {
  8045. //Setting my lp_id to autolunch = 1
  8046. $attributes['autolunch'] = 1;
  8047. $where = array('id = ? AND session_id = ? '=> array($lp_id, api_get_session_id()));
  8048. Database::update($lp_table, $attributes, $where );
  8049. }
  8050. }
  8051. /**
  8052. * Gets previous_item_id for the next element of the lp_item table
  8053. * @author Isaac flores paz
  8054. * @return integer Previous item ID
  8055. */
  8056. function select_previous_item_id() {
  8057. if ($this->debug > 0) {
  8058. error_log('New LP - In learnpath::select_previous_item_id()', 0);
  8059. }
  8060. $table_lp_item = Database::get_course_table(TABLE_LP_ITEM);
  8061. // Get the max order of the items
  8062. $sql_max_order = "SELECT max(display_order) AS display_order FROM $table_lp_item WHERE lp_id = '" . $this->lp_id . "'";
  8063. $rs_max_order = Database::query($sql_max_order);
  8064. $row_max_order = Database::fetch_object($rs_max_order);
  8065. $max_order = $row_max_order->display_order;
  8066. // Get the previous item ID
  8067. $sql_max = "SELECT id as previous FROM $table_lp_item WHERE lp_id = '" . $this->lp_id . "' AND display_order = '".$max_order."' ";
  8068. $rs_max = Database::query($sql_max, __FILE__, __LINE__);
  8069. $row_max = Database::fetch_object($rs_max);
  8070. // Return the previous item ID
  8071. return $row_max->previous;
  8072. }
  8073. }
  8074. if (!function_exists('trim_value')) {
  8075. function trim_value(& $value) {
  8076. $value = trim($value);
  8077. }
  8078. }