yannick_lp_controller.php 17 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514
  1. <?php //$id: $
  2. /**
  3. * Controller script. Prepares the common background variables to give to the scripts corresponding to
  4. * the requested action
  5. * @package dokeos.learnpath
  6. * @author Yannick Warnier <ywarnier@beeznest.org>
  7. * @author Kevin Van Den Haute <kevin@develop-it.be>
  8. */
  9. /**
  10. * Initialisations
  11. */
  12. $debug = 0;
  13. if($debug>0) error_log('New LP -+- Entered lp_controller.php -+-',0);
  14. // name of the language file that needs to be included
  15. $language_file[] = "scormdocument";
  16. $language_file[] = "scorm";
  17. $language_file[] = "learnpath";
  18. //include class definitions before session_start() to ensure availability when touching
  19. //session vars containing learning paths
  20. require_once('learnpath.class.php');
  21. if($debug>0) error_log('New LP - Included learnpath',0);
  22. require_once('learnpathItem.class.php');
  23. if($debug>0) error_log('New LP - Included learnpathItem',0);
  24. require_once('scorm.class.php');
  25. if($debug>0) error_log('New LP - Included scorm',0);
  26. require_once('scormItem.class.php');
  27. if($debug>0) error_log('New LP - Included scormItem',0);
  28. require_once('aicc.class.php');
  29. if($debug>0) error_log('New LP - Included aicc',0);
  30. require_once('aiccItem.class.php');
  31. if($debug>0) error_log('New LP - Included aiccItem',0);
  32. require_once('temp.lib.php');
  33. if($debug>0) error_log('New LP - Included temp',0);
  34. require_once('back_compat.inc.php');
  35. if($debug>0) error_log('New LP - Included back_compat',0);
  36. api_protect_course_script();
  37. //TODO @TODO define tool, action and task to give as parameters to:
  38. //$is_allowed_to_edit = api_is_allowed_to_edit();
  39. if ($is_allowed_in_course == false){
  40. Display::display_header('');
  41. api_not_allowed();
  42. Display::display_footer();
  43. }
  44. require_once(api_get_path(LIBRARY_PATH) . "/fckeditor.lib.php");
  45. $lpfound = false;
  46. $myrefresh = 0;
  47. $myrefresh_id = 0;
  48. if(!empty($_SESSION['refresh']) && $_SESSION['refresh']==1){
  49. //check if we should do a refresh of the oLP object (for example after editing the LP)
  50. //if refresh is set, we regenerate the oLP object from the database (kind of flush)
  51. api_session_unregister('refresh');
  52. $myrefresh = 1;
  53. if($debug>0) error_log('New LP - Refresh asked',0);
  54. }
  55. if($debug>0) error_log('New LP - Passed refresh check',0);
  56. if(!empty($_REQUEST['dialog_box'])){
  57. $dialog_box = learnpath::escape_string(urldecode($_REQUEST['dialog_box']));
  58. }
  59. $lp_controller_touched = 1;
  60. if(isset($_SESSION['lpobject']))
  61. {
  62. if($debug>0) error_log('New LP - SESSION[lpobject] is defined',0);
  63. $oLP = unserialize($_SESSION['lpobject']);
  64. if(is_object($oLP)){
  65. if($debug>0) error_log('New LP - oLP is object',0);
  66. if($myrefresh == 1 OR $oLP->cc != api_get_course_id()){
  67. if($debug>0) error_log('New LP - Course has changed, discard lp object',0);
  68. if($myrefresh == 1){$myrefresh_id = $oLP->get_id();}
  69. $oLP = null;
  70. api_session_unregister('oLP');
  71. api_session_unregister('lpobject');
  72. }else{
  73. $_SESSION['oLP'] = $oLP;
  74. $lp_found = true;
  75. }
  76. }
  77. }
  78. if($debug>0) error_log('New LP - Passed data remains check',0);
  79. if($lp_found == false
  80. || ($_SESSION['oLP']->get_id() != $_REQUEST['lp_id'])
  81. )
  82. {
  83. if($debug>0) error_log('New LP - oLP is not object, has changed or refresh been asked, getting new',0);
  84. //regenerate a new lp object? Not always as some pages don't need the object (like upload?)
  85. if(!empty($_REQUEST['lp_id']) || !empty($myrefresh_id)){
  86. if($debug>0) error_log('New LP - lp_id is defined',0);
  87. //select the lp in the database and check which type it is (scorm/dokeos/aicc) to generate the
  88. //right object
  89. $lp_table = Database::get_course_table('lp');
  90. if(!empty($_REQUEST['lp_id'])){
  91. $lp_id = escape_txt($_REQUEST['lp_id']);
  92. }else{
  93. $lp_id = $myrefresh_id;
  94. }
  95. $sel = "SELECT * FROM $lp_table WHERE id = $lp_id";
  96. if($debug>0) error_log('New LP - querying '.$sel,0);
  97. $res = api_sql_query($sel);
  98. if(Database::num_rows($res))
  99. {
  100. $row = Database::fetch_array($res);
  101. $type = $row['lp_type'];
  102. if($debug>0) error_log('New LP - found row - type '.$type. ' - Calling constructor with '.api_get_course_id().' - '.$lp_id.' - '.api_get_user_id(),0);
  103. switch($type){
  104. case 1:
  105. $oLP = new learnpath(api_get_course_id(),$lp_id,api_get_user_id());
  106. if($oLP !== false){ $lp_found = true; }else{eror_log($oLP->error,0);}
  107. break;
  108. case 2:
  109. $oLP = new scorm(api_get_course_id(),$lp_id,api_get_user_id());
  110. if($oLP !== false){ $lp_found = true; }else{eror_log($oLP->error,0);}
  111. break;
  112. default:
  113. $oLP = new learnpath(api_get_course_id(),$lp_id,api_get_user_id());
  114. if($oLP !== false){ $lp_found = true; }else{eror_log($oLP->error,0);}
  115. break;
  116. }
  117. }
  118. }else{
  119. if($debug>0) error_log('New LP - Request[lp_id] and refresh_id were empty',0);
  120. }
  121. if($lp_found)
  122. {
  123. $_SESSION['oLP'] = $oLP;
  124. }
  125. }
  126. if($debug>0) error_log('New LP - Passed oLP creation check',0);
  127. /**
  128. * Actions switching
  129. */
  130. $_SESSION['oLP']->update_queue = array(); //reinitialises array used by javascript to update items in the TOC
  131. $_SESSION['oLP']->message = ''; //should use ->clear_message() method but doesn't work
  132. switch($_REQUEST['action'])
  133. {
  134. case 'admin_view':
  135. if($debug>0) error_log('New LP - admin_view action triggered',0);
  136. $_SESSION['refresh'] = 1;
  137. require('lp_admin_view.php');
  138. break;
  139. case 'upload':
  140. if($debug>0) error_log('New LP - upload action triggered',0);
  141. $cwdir = getcwd();
  142. require('lp_upload.php');
  143. //reinit current working directory as many functions in upload change it
  144. chdir($cwdir);
  145. require('lp_list.php');
  146. break;
  147. case 'export':
  148. if($debug>0) error_log('New LP - export action triggered',0);
  149. if(!$lp_found){ error_log('New LP - No learnpath given for export',0); require('lp_list.php'); }
  150. else{
  151. if($_SESSION['oLP']->get_type()==2){
  152. $_SESSION['oLP']->export_zip();
  153. }
  154. //require('lp_list.php');
  155. }
  156. break;
  157. case 'delete':
  158. if($debug>0) error_log('New LP - delete action triggered',0);
  159. if(!$lp_found){ error_log('New LP - No learnpath given for delete',0); require('lp_list.php'); }
  160. else{
  161. $_SESSION['refresh'] = 1;
  162. $_SESSION['oLP']->delete(null,null,'remove');
  163. api_session_unregister('oLP');
  164. //require('lp_delete.php');
  165. require('lp_list.php');
  166. }
  167. break;
  168. case 'toggle_visible': //change lp visibility
  169. if($debug>0) error_log('New LP - publish action triggered',0);
  170. if(!$lp_found){ error_log('New LP - No learnpath given for publish',0); require('lp_list.php'); }
  171. else{
  172. learnpath::toggle_visibility($_REQUEST['lp_id'],$_REQUEST['new_status']);
  173. require('lp_list.php');
  174. }
  175. break;
  176. case 'edit':
  177. if($debug>0) error_log('New LP - edit action triggered',0);
  178. if(!$lp_found){ error_log('New LP - No learnpath given for edit',0); require('lp_list.php'); }
  179. else{
  180. $_SESSION['refresh'] = 1;
  181. require('lp_edit.php');
  182. //require('lp_admin_view.php');
  183. }
  184. break;
  185. case 'update_lp':
  186. if($debug>0) error_log('New LP - update_lp action triggered',0);
  187. if(!$lp_found){ error_log('New LP - No learnpath given for edit',0); require('lp_list.php'); }
  188. else{
  189. $_SESSION['refresh'] = 1;
  190. $_SESSION['oLP']->set_name($_REQUEST['lp_name']);
  191. $_SESSION['oLP']->set_encoding($_REQUEST['lp_encoding']);
  192. $_SESSION['oLP']->set_maker($_REQUEST['lp_maker']);
  193. $_SESSION['oLP']->set_proximity($_REQUEST['lp_proximity']);
  194. require('lp_list.php');
  195. }
  196. break;
  197. case 'add_lp':
  198. if($debug>0) error_log('New LP - add_lp action triggered',0);
  199. //call learnpath creation abstract method with course_id, learnpath_name, learnpath_description, type_of_lp, origin_of_creation, file_name
  200. if(!empty($_REQUEST['learnpath_name'])){
  201. $_SESSION['refresh'] = 1;
  202. $new_lp_id = learnpath::add_lp(api_get_course_id(),$_REQUEST['learnpath_name'],$_REQUEST['learnpath_description'],'dokeos','manual','');
  203. //TODO maybe create a first module directly to avoid bugging the user with useless queries
  204. $_SESSION['oLP'] = new learnpath(api_get_course_id(),$new_lp_id,api_get_user_id());
  205. $_SESSION['oLP']->add_item(0,-1,'dokeos_chapter',$_REQUEST['path'],'Default');
  206. }
  207. require('lp_list.php');
  208. break;
  209. case 'add_item':
  210. if($debug>0) error_log('New LP - add item action triggered',0);
  211. if(!$lp_found){ error_log('New LP - No learnpath given for add item',0); require('lp_list.php'); }
  212. else{
  213. $_SESSION['refresh'] = 1;
  214. if(!empty($_REQUEST['submit_button']) && !empty($_REQUEST['title'])){
  215. $_SESSION['oLP']->add_item($_REQUEST['parent'],$_REQUEST['previous'],$_REQUEST['type'],$_REQUEST['path'],$_REQUEST['title']);
  216. }
  217. require('lp_admin_view.php');
  218. }
  219. break;
  220. case 'add_module':
  221. if($debug > 0)
  222. error_log('New LP - add item action triggered', 0);
  223. if(!$lp_found)
  224. {
  225. error_log('New LP - No learnpath given for add item', 0);
  226. require('lp_list.php');
  227. }
  228. else
  229. {
  230. //$_SESSION['refresh'] = 1;
  231. if(isset($_POST['cmdSubmit']))
  232. {
  233. $_SESSION['oLP']->add_item(0, -1, 'dokeos_module', '', $_POST['txtTitle']);
  234. }
  235. require('lp_view.php');
  236. }
  237. break;
  238. case 'add_document':
  239. if($debug > 0)
  240. error_log('New LP - add item action triggered', 0);
  241. if(!$lp_found)
  242. {
  243. error_log('New LP - No learnpath given for add item', 0);
  244. require('lp_list.php');
  245. }
  246. else
  247. {
  248. //$_SESSION['refresh'] = 1;
  249. if(isset($_POST['cmdSubmit']))
  250. {
  251. $_SESSION['oLP']->add_item(0, -1, 'dokeos_document', '', $_POST['txtTitle']);
  252. }
  253. require('lp_view.php');
  254. }
  255. break;
  256. case 'add_sub_item': //add an item inside a chapter
  257. if($debug>0) error_log('New LP - add sub item action triggered',0);
  258. if(!$lp_found){ error_log('New LP - No learnpath given for add sub item',0); require('lp_list.php'); }
  259. else{
  260. $_SESSION['refresh'] = 1;
  261. if(!empty($_REQUEST['parent_item_id'])){
  262. $_SESSION['from_learnpath']='yes';
  263. $_SESSION['origintoolurl'] = 'lp_controller.php?action=admin_view&lp_id='.$_REQUEST['lp_id'];
  264. require('resourcelinker.php');
  265. //$_SESSION['oLP']->add_sub_item($_REQUEST['parent_item_id'],$_REQUEST['previous'],$_REQUEST['type'],$_REQUEST['path'],$_REQUEST['title']);
  266. }else{
  267. require('lp_admin_view.php');
  268. }
  269. }
  270. break;
  271. case 'deleteitem':
  272. case 'delete_item':
  273. if($debug>0) error_log('New LP - delete item action triggered',0);
  274. if(!$lp_found){ error_log('New LP - No learnpath given for delete item',0); require('lp_list.php'); }
  275. else{
  276. $_SESSION['refresh'] = 1;
  277. if(!empty($_REQUEST['id'])){
  278. $_SESSION['oLP']->delete_item($_REQUEST['id']);
  279. }
  280. require('lp_admin_view.php');
  281. }
  282. break;
  283. case 'edititem':
  284. case 'edit_item':
  285. if($debug>0) error_log('New LP - edit item action triggered',0);
  286. if(!$lp_found){ error_log('New LP - No learnpath given for edit item',0); require('lp_list.php'); }
  287. else{
  288. if(!empty($_REQUEST['id']) && !empty($_REQUEST['submit_item'])){
  289. $_SESSION['refresh'] = 1;
  290. $_SESSION['oLP']->edit_item($_REQUEST['id'], $_REQUEST['title']);
  291. }
  292. require('lp_admin_view.php');
  293. }
  294. break;
  295. case 'edititemprereq':
  296. case 'edit_item_prereq':
  297. if($debug>0) error_log('New LP - edit item prereq action triggered',0);
  298. if(!$lp_found){ error_log('New LP - No learnpath given for edit item prereq',0); require('lp_list.php'); }
  299. else{
  300. if(!empty($_REQUEST['id']) && !empty($_REQUEST['submit_item'])){
  301. $_SESSION['refresh'] = 1;
  302. $_SESSION['oLP']->edit_item_prereq($_REQUEST['id'],$_REQUEST['prereq']);
  303. }
  304. require('lp_admin_view.php');
  305. }
  306. break;
  307. case 'restart':
  308. if($debug>0) error_log('New LP - restart action triggered',0);
  309. if(!$lp_found){ error_log('New LP - No learnpath given for restart',0); require('lp_list.php'); }
  310. else{
  311. $_SESSION['oLP']->restart();
  312. require('lp_view.php');
  313. }
  314. break;
  315. case 'last':
  316. if($debug>0) error_log('New LP - last action triggered',0);
  317. if(!$lp_found){ error_log('New LP - No learnpath given for last',0); require('lp_list.php'); }
  318. else{
  319. $_SESSION['oLP']->last();
  320. require('lp_view.php');
  321. }
  322. break;
  323. case 'first':
  324. if($debug>0) error_log('New LP - first action triggered',0);
  325. if(!$lp_found){ error_log('New LP - No learnpath given for first',0); require('lp_list.php'); }
  326. else{
  327. $_SESSION['oLP']->first();
  328. require('lp_view.php');
  329. }
  330. break;
  331. case 'next':
  332. if($debug>0) error_log('New LP - next action triggered',0);
  333. if(!$lp_found){ error_log('New LP - No learnpath given for next',0); require('lp_list.php'); }
  334. else{
  335. $_SESSION['oLP']->next();
  336. require('lp_view.php');
  337. }
  338. break;
  339. case 'previous':
  340. if($debug>0) error_log('New LP - previous action triggered',0);
  341. if(!$lp_found){ error_log('New LP - No learnpath given for previous',0); require('lp_list.php'); }
  342. else{
  343. $_SESSION['oLP']->previous();
  344. require('lp_view.php');
  345. }
  346. break;
  347. case 'content':
  348. if($debug>0) error_log('New LP - content action triggered',0);
  349. if($debug>0) error_log('New LP - Item id is '.$_GET['item_id'],0);
  350. if(!$lp_found){ error_log('New LP - No learnpath given for content',0); require('lp_list.php'); }
  351. else{
  352. $_SESSION['oLP']->set_current_item($_GET['item_id']);
  353. $_SESSION['oLP']->start_current_item();
  354. require('lp_content.php');
  355. }
  356. break;
  357. case 'view':
  358. if($debug > 0)
  359. error_log('New LP - view action triggered', 0);
  360. if(!$lp_found)
  361. {
  362. error_log('New LP - No learnpath given for view', 0);
  363. require('lp_list.php');
  364. }
  365. else
  366. {
  367. if($debug > 0)
  368. error_log('New LP - trying to set current item to ' . $_REQUEST['item_id'], 0);
  369. $_SESSION['oLP']->set_current_item($_REQUEST['item_id']);
  370. require('lp_view.php');
  371. }
  372. break;
  373. case 'save':
  374. if($debug>0) error_log('New LP - save action triggered',0);
  375. if(!$lp_found){ error_log('New LP - No learnpath given for save',0); require('lp_list.php'); }
  376. else{
  377. $_SESSION['oLP']->save_item();
  378. require('lp_save.php');
  379. }
  380. break;
  381. case 'stats':
  382. if($debug>0) error_log('New LP - stats action triggered',0);
  383. if(!$lp_found){ error_log('New LP - No learnpath given for stats',0); require('lp_list.php'); }
  384. else{
  385. $_SESSION['oLP']->save_current();
  386. $_SESSION['oLP']->save_last();
  387. require('lp_stats.php');
  388. }
  389. break;
  390. case 'list':
  391. if($debug>0) error_log('New LP - list action triggered',0);
  392. if($lp_found){
  393. $_SESSION['refresh'] = 1;
  394. $_SESSION['oLP']->save_last();
  395. }
  396. require('lp_list.php');
  397. break;
  398. case 'mode':
  399. //switch between fullscreen and embedded mode
  400. if($debug>0) error_log('New LP - mode change triggered',0);
  401. $mode = $_REQUEST['mode'];
  402. if($mode == 'fullscreen'){
  403. $_SESSION['oLP']->mode = 'fullscreen';
  404. }else{
  405. $_SESSION['oLP']->mode = 'embedded';
  406. }
  407. require('lp_view.php');
  408. break;
  409. case 'switch_view_mode':
  410. if($debug>0) error_log('New LP - switch_view_mode action triggered',0);
  411. if(!$lp_found){ error_log('New LP - No learnpath given for switch',0); require('lp_list.php'); }
  412. $_SESSION['refresh'] = 1;
  413. $_SESSION['oLP']->update_default_view_mode();
  414. require('lp_list.php');
  415. break;
  416. case 'switch_force_commit':
  417. if($debug>0) error_log('New LP - switch_force_commit action triggered',0);
  418. if(!$lp_found){ error_log('New LP - No learnpath given for switch',0); require('lp_list.php'); }
  419. $_SESSION['refresh'] = 1;
  420. $_SESSION['oLP']->update_default_scorm_commit();
  421. require('lp_list.php');
  422. break;
  423. case 'switch_reinit':
  424. if($debug>0) error_log('New LP - switch_reinit action triggered',0);
  425. if(!$lp_found){ error_log('New LP - No learnpath given for switch',0); require('lp_list.php'); }
  426. $_SESSION['refresh'] = 1;
  427. $_SESSION['oLP']->update_reinit();
  428. require('lp_list.php');
  429. break;
  430. case 'switch_scorm_debug':
  431. if($debug>0) error_log('New LP - switch_scorm_debug action triggered',0);
  432. if(!$lp_found){ error_log('New LP - No learnpath given for switch',0); require('lp_list.php'); }
  433. $_SESSION['refresh'] = 1;
  434. $_SESSION['oLP']->update_scorm_debug();
  435. require('lp_list.php');
  436. break;
  437. case 'intro_cmdAdd':
  438. if($debug>0) error_log('New LP - intro_cmdAdd action triggered',0);
  439. //add introduction section page
  440. break;
  441. case 'moveitem':
  442. case 'move_item':
  443. if($debug > 0)
  444. error_log('New LP - move_item action triggered', 0);
  445. if(!$lp_found)
  446. {
  447. error_log('New LP - No learnpath given for move_item', 0);
  448. require('lp_list.php');
  449. }
  450. if(!empty($_REQUEST['direction']) && !empty($_REQUEST['id']))
  451. {
  452. $_SESSION['refresh'] = 1;
  453. $_SESSION['oLP']->move_item($_REQUEST['id'], $_REQUEST['direction']);
  454. }
  455. require('lp_admin_view.php');
  456. break;
  457. case 'js_api_refresh':
  458. if($debug>0) error_log('New LP - js_api_refresh action triggered',0);
  459. if(!$lp_found){ error_log('New LP - No learnpath given for js_api_refresh',0); require('lp_message.php'); }
  460. if(isset($_REQUEST['item_id'])){
  461. $htmlHeadXtra[] = $_SESSION['oLP']->get_js_info($_REQUEST['item_id']);
  462. }
  463. require('lp_message.php');
  464. break;
  465. default:
  466. if($debug>0) error_log('New LP - default action triggered',0);
  467. //$_SESSION['refresh'] = 1;
  468. require('lp_list.php');
  469. break;
  470. }
  471. if(!empty($_SESSION['oLP'])){
  472. $_SESSION['lpobject'] = serialize($_SESSION['oLP']);
  473. if($debug>0) error_log('New LP - lpobject is serialized in session',0);
  474. }
  475. ?>