sessionmanager.lib.php 71 KB

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  1. <?php //$id: $
  2. /* For licensing terms, see /license.txt */
  3. /**
  4. * This is the session library for Chamilo.
  5. * All main sessions functions should be placed here.
  6. * @package chamilo.library
  7. */
  8. /**
  9. * Code
  10. */
  11. /* LIBRARIES */
  12. /**
  13. * This class provides methods for sessions management.
  14. * Include/require it in your code to use its features.
  15. *
  16. * @package chamilo.library
  17. */
  18. class SessionManager {
  19. private function __construct() {
  20. }
  21. /**
  22. * Fetches a session from the database
  23. * @param int Session ID
  24. * @return array Session details (id, id_coach, name, nbr_courses, nbr_users, nbr_classes, date_start, date_end, nb_days_access_before_beginning,nb_days_access_after_end, session_admin_id)
  25. */
  26. public static function fetch($id) {
  27. $t = Database::get_main_table(TABLE_MAIN_SESSION);
  28. if ($id != strval(intval($id))) { return array(); }
  29. $s = "SELECT * FROM $t WHERE id = $id";
  30. $r = Database::query($s);
  31. if (Database::num_rows($r) != 1) { return array(); }
  32. return Database::fetch_array($r,'ASSOC');
  33. }
  34. /**
  35. * Create a session
  36. * @author Carlos Vargas from existing code
  37. * @param string name
  38. * @param integer Start year (yyyy)
  39. * @param integer Start month (mm)
  40. * @param integer Start day (dd)
  41. * @param integer End year (yyyy)
  42. * @param integer End month (mm)
  43. * @param integer End day (dd)
  44. * @param integer Number of days that the coach can access the session before the start date
  45. * @param integer Number of days that the coach can access the session after the end date
  46. * @param integer If 1, means there are no date limits
  47. * @param mixed If integer, this is the session coach id, if string, the coach ID will be looked for from the user table
  48. * @param integer ID of the session category in which this session is registered
  49. * @param integer Visibility after end date (0 = read-only, 1 = invisible, 2 = accessible)
  50. * @param string Start limit = true if the start date has to be considered
  51. * @param string End limit = true if the end date has to be considered
  52. * @todo use an array to replace all this parameters or use the model.lib.php ...
  53. * @return mixed Session ID on success, error message otherwise
  54. **/
  55. public static function create_session($sname,$syear_start,$smonth_start,$sday_start,$syear_end,$smonth_end,$sday_end,$snb_days_acess_before,$snb_days_acess_after, $nolimit,$coach_username, $id_session_category,$id_visibility, $start_limit = true, $end_limit = true, $fix_name = false) {
  56. $name = Database::escape_string(trim($sname));
  57. $year_start = intval($syear_start);
  58. $month_start = intval($smonth_start);
  59. $day_start = intval($sday_start);
  60. $year_end = intval($syear_end);
  61. $month_end = intval($smonth_end);
  62. $day_end = intval($sday_end);
  63. $nb_days_acess_before = intval($snb_days_acess_before);
  64. $nb_days_acess_after = intval($snb_days_acess_after);
  65. $id_session_category = intval($id_session_category);
  66. $id_visibility = intval($id_visibility);
  67. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  68. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  69. if(is_int($coach_username)) {
  70. $id_coach = $coach_username;
  71. } else {
  72. $sql = 'SELECT user_id FROM '.$tbl_user.' WHERE username="'.Database::escape_string($coach_username).'"';
  73. $rs = Database::query($sql);
  74. $id_coach = Database::result($rs,0,'user_id');
  75. }
  76. if (empty($nolimit)) {
  77. $date_start ="$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
  78. $date_end ="$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
  79. } else {
  80. $id_visibility = 1; // by default session visibility is read only
  81. $date_start ="0000-00-00";
  82. $date_end ="0000-00-00";
  83. }
  84. if (empty($end_limit)) {
  85. $date_end ="0000-00-00";
  86. $id_visibility = 1; // by default session visibility is read only
  87. }
  88. if (empty($start_limit)) {
  89. $date_start ="0000-00-00";
  90. }
  91. if (empty($name)) {
  92. $msg=get_lang('SessionNameIsRequired');
  93. return $msg;
  94. } elseif (empty($coach_username)) {
  95. $msg=get_lang('CoachIsRequired');
  96. return $msg;
  97. } elseif (!empty($start_limit) && empty($nolimit) && (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start))) {
  98. $msg=get_lang('InvalidStartDate');
  99. return $msg;
  100. } elseif (!empty($end_limit) && empty($nolimit) && (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end))) {
  101. $msg=get_lang('InvalidEndDate');
  102. return $msg;
  103. } elseif(!empty($start_limit) && !empty($end_limit) && empty($nolimit) && $date_start >= $date_end) {
  104. $msg=get_lang('StartDateShouldBeBeforeEndDate');
  105. return $msg;
  106. } else {
  107. $ready_to_create = false;
  108. if ($fix_name) {
  109. $name = self::generate_nice_next_session_name($name);
  110. if ($name) {
  111. $ready_to_create = true;
  112. } else {
  113. $msg=get_lang('SessionNameAlreadyExists');
  114. return $msg;
  115. }
  116. } else {
  117. $rs = Database::query("SELECT 1 FROM $tbl_session WHERE name='".$name."'");
  118. if (Database::num_rows($rs)) {
  119. $msg=get_lang('SessionNameAlreadyExists');
  120. return $msg;
  121. }
  122. $ready_to_create = true;
  123. }
  124. if ($ready_to_create) {
  125. $sql_insert = "INSERT INTO $tbl_session(name,date_start,date_end,id_coach,session_admin_id, nb_days_access_before_beginning, nb_days_access_after_end, session_category_id,visibility)
  126. VALUES('".$name."','$date_start','$date_end','$id_coach',".api_get_user_id().",".$nb_days_acess_before.", ".$nb_days_acess_after.", ".$id_session_category.", ".$id_visibility.")";
  127. Database::query($sql_insert);
  128. $session_id = Database::insert_id();
  129. if (!empty($session_id)) {
  130. //Adding to the correct URL
  131. require_once api_get_path(LIBRARY_PATH).'urlmanager.lib.php';
  132. $tbl_user_rel_access_url= Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  133. $access_url_id = api_get_current_access_url_id();
  134. UrlManager::add_session_to_url($session_id,$access_url_id);
  135. // add event to system log
  136. $user_id = api_get_user_id();
  137. event_system(LOG_SESSION_CREATE, LOG_SESSION_ID, $session_id, api_get_utc_datetime(), $user_id);
  138. }
  139. return $session_id;
  140. }
  141. }
  142. }
  143. function session_name_exists($session_name) {
  144. $session_name = Database::escape_string($session_name);
  145. $result = Database::fetch_array(Database::query("SELECT COUNT(*) as count FROM ".Database::get_main_table(TABLE_MAIN_SESSION)." WHERE name = '$session_name' "));
  146. return $result['count'] > 0;
  147. }
  148. function get_count_admin() {
  149. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  150. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  151. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  152. $where = 'WHERE 1=1 ';
  153. $user_id = api_get_user_id();
  154. if (api_is_session_admin()==true) {
  155. $where.=" WHERE s.session_admin_id = $user_id ";
  156. }
  157. $query_rows = "SELECT count(*) as total_rows
  158. FROM $tbl_session s
  159. LEFT JOIN $tbl_session_category sc ON s.session_category_id = sc.id
  160. INNER JOIN $tbl_user u ON s.id_coach = u.user_id
  161. $where ";
  162. global $_configuration;
  163. if ($_configuration['multiple_access_urls']) {
  164. $table_access_url_rel_session= Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  165. $access_url_id = api_get_current_access_url_id();
  166. if ($access_url_id != -1) {
  167. $where.= " AND ar.access_url_id = $access_url_id ";
  168. $query_rows = "SELECT count(*) as total_rows
  169. FROM $tbl_session s
  170. LEFT JOIN $tbl_session_category sc ON s.session_category_id = sc.id
  171. INNER JOIN $tbl_user u ON s.id_coach = u.user_id
  172. INNER JOIN $table_access_url_rel_session ar ON ar.session_id = s.id
  173. $where ";
  174. }
  175. }
  176. $result_rows = Database::query($query_rows);
  177. $recorset = Database::fetch_array($result_rows);
  178. $num = $recorset['total_rows'];
  179. return $num;
  180. }
  181. /**
  182. * Gets the admin session list callback of the admin/session_list.php page
  183. * @param array order and limit keys
  184. */
  185. public function get_sessions_admin($options) {
  186. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  187. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  188. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  189. $where = 'WHERE 1=1 ';
  190. $user_id = api_get_user_id();
  191. if (api_is_session_admin()==true) {
  192. $where.=" AND s.session_admin_id = $user_id ";
  193. }
  194. $coach_name = " CONCAT (u.lastname , ' ', u.firstname) as coach_name ";
  195. if (api_is_western_name_order()) {
  196. $coach_name = " CONCAT (u.firstname, ' ', u.lastname) as coach_name ";
  197. }
  198. $today = api_get_utc_datetime();
  199. $today = api_strtotime($today, 'UTC');
  200. $today = date('Y-m-d', $today);
  201. $select = "SELECT * FROM (SELECT
  202. IF (
  203. (s.date_start <= '$today' AND '$today' < s.date_end) OR
  204. (s.date_start = '0000-00-00' AND s.date_end = '0000-00-00' ) OR
  205. (s.date_start <= '$today' AND '0000-00-00' = s.date_end) OR
  206. ('$today' < s.date_end AND '0000-00-00' = s.date_start)
  207. , 1, 0)
  208. as session_active,
  209. s.name, nbr_courses, nbr_users, s.date_start, s.date_end, $coach_name, sc.name as category_name, s.visibility, u.user_id, s.id";
  210. $query = "$select FROM $tbl_session s
  211. LEFT JOIN $tbl_session_category sc ON s.session_category_id = sc.id
  212. INNER JOIN $tbl_user u ON s.id_coach = u.user_id ".
  213. $where;
  214. global $_configuration;
  215. if ($_configuration['multiple_access_urls']) {
  216. $table_access_url_rel_session= Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  217. $access_url_id = api_get_current_access_url_id();
  218. if ($access_url_id != -1) {
  219. $where.= " AND ar.access_url_id = $access_url_id ";
  220. $query = "$select
  221. FROM $tbl_session s
  222. LEFT JOIN $tbl_session_category sc ON s.session_category_id = sc.id
  223. INNER JOIN $tbl_user u ON s.id_coach = u.user_id
  224. INNER JOIN $table_access_url_rel_session ar ON ar.session_id = s.id
  225. $where";
  226. }
  227. }
  228. $query .= ") AS session_table";
  229. if (!empty($options['where'])) {
  230. $query .= ' WHERE '.$options['where'];
  231. }
  232. $query .= " ORDER BY ".$options['order']." LIMIT ".$options['limit'];
  233. $result = Database::query($query);
  234. $formatted_sessions = array();
  235. if (Database::num_rows($result)) {
  236. $sessions = Database::store_result($result);
  237. foreach ($sessions as $session) {
  238. $session['name'] = Display::url($session['name'], "resume_session.php?id_session=".$session['id']);
  239. $session['coach_name'] = Display::url($session['coach_name'], "user_information.php?user_id=".$session['user_id']);
  240. if ($session['date_start'] == '0000-00-00' && $session['date_end'] == '0000-00-00') {
  241. // $session['session_active'] = 1;
  242. }
  243. if ($session['session_active'] == 1) {
  244. $session['session_active'] = Display::return_icon('accept.png', get_lang('Active'), array(), ICON_SIZE_SMALL);
  245. } else {
  246. $session['session_active'] = Display::return_icon('error.png', get_lang('Inactive'), array(), ICON_SIZE_SMALL);
  247. }
  248. if ($session['date_start'] == '0000-00-00') {
  249. $session['date_start'] = '';
  250. }
  251. if ($session['date_end'] == '0000-00-00') {
  252. $session['date_end'] = '';
  253. }
  254. switch ($session['visibility']) {
  255. case SESSION_VISIBLE_READ_ONLY: //1
  256. $session['visibility'] = get_lang('ReadOnly');
  257. break;
  258. case SESSION_VISIBLE: //2
  259. $session['visibility'] = get_lang('Visible');
  260. break;
  261. case SESSION_INVISIBLE: //3
  262. $session['visibility'] = api_ucfirst(get_lang('Invisible'));
  263. break;
  264. }
  265. $formatted_sessions[] = $session;
  266. }
  267. }
  268. return $formatted_sessions;
  269. }
  270. /**
  271. * Creates a new course code based in given code
  272. *
  273. * @param string wanted code
  274. * <code>
  275. * $wanted_code = 'curse' if there are in the DB codes like curse1 curse2 the function will return: course3
  276. * if the course code doest not exist in the DB the same course code will be returned
  277. * </code>
  278. * @return string wanted unused code
  279. */
  280. function generate_nice_next_session_name($session_name) {
  281. $session_name_ok = !self::session_name_exists($session_name);
  282. if (!$session_name_ok) {
  283. $table = Database::get_main_table(TABLE_MAIN_SESSION);
  284. $session_name = Database::escape_string($session_name);
  285. $sql = "SELECT count(*) as count FROM $table WHERE name LIKE '$session_name%'";
  286. $result = Database::query($sql);
  287. if (Database::num_rows($result) > 0 ) {
  288. $row = Database::fetch_array($result);
  289. $count = $row['count'] + 1;
  290. $session_name = $session_name.'_'.$count;
  291. $result = self::session_name_exists($session_name);
  292. if (!$result) {
  293. return $session_name;
  294. }
  295. }
  296. return false;
  297. }
  298. return $session_name;
  299. }
  300. /**
  301. * Edit a session
  302. * @author Carlos Vargas from existing code
  303. * @param integer id
  304. * @param string name
  305. * @param integer year_start
  306. * @param integer month_start
  307. * @param integer day_start
  308. * @param integer year_end
  309. * @param integer month_end
  310. * @param integer day_end
  311. * @param integer nb_days_acess_before
  312. * @param integer nb_days_acess_after
  313. * @param integer nolimit
  314. * @param integer id_coach
  315. * @param integer id_session_category
  316. * @return $id;
  317. * The parameter id is a primary key
  318. **/
  319. public static function edit_session ($id,$name,$year_start,$month_start,$day_start,$year_end,$month_end,$day_end,$nb_days_acess_before,$nb_days_acess_after,$nolimit,$id_coach, $id_session_category, $id_visibility, $start_limit = true, $end_limit = true) {
  320. global $_user;
  321. $name=trim(stripslashes($name));
  322. $year_start=intval($year_start);
  323. $month_start=intval($month_start);
  324. $day_start=intval($day_start);
  325. $year_end=intval($year_end);
  326. $month_end=intval($month_end);
  327. $day_end=intval($day_end);
  328. $id_coach= intval($id_coach);
  329. $nb_days_acess_before= intval($nb_days_acess_before);
  330. $nb_days_acess_after = intval($nb_days_acess_after);
  331. $id_session_category = intval($id_session_category);
  332. $id_visibility = intval($id_visibility);
  333. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  334. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  335. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  336. if (empty($nolimit)) {
  337. $date_start = "$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
  338. $date_end = "$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
  339. } else {
  340. $date_start = "0000-00-00";
  341. $date_end = "0000-00-00";
  342. $id_visibility = 1;//force read only
  343. }
  344. if (!empty($no_end_limit)) {
  345. $date_end = "0000-00-00";
  346. }
  347. if (empty($end_limit)) {
  348. $date_end ="0000-00-00";
  349. $id_visibility = 1;//force read only
  350. }
  351. if (empty($start_limit)) {
  352. $date_start ="0000-00-00";
  353. }
  354. if (empty($name)) {
  355. $msg=get_lang('SessionNameIsRequired');
  356. return $msg;
  357. } elseif (empty($id_coach)) {
  358. $msg=get_lang('CoachIsRequired');
  359. return $msg;
  360. } elseif (!empty($start_limit) && empty($nolimit) && (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start))) {
  361. $msg=get_lang('InvalidStartDate');
  362. return $msg;
  363. } elseif (!empty($end_limit) && empty($nolimit) && (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end))) {
  364. $msg=get_lang('InvalidEndDate');
  365. return $msg;
  366. } elseif (!empty($start_limit) && !empty($end_limit) && empty($nolimit) && $date_start >= $date_end) {
  367. $msg=get_lang('StartDateShouldBeBeforeEndDate');
  368. return $msg;
  369. } else {
  370. $rs = Database::query("SELECT id FROM $tbl_session WHERE name='".Database::escape_string($name)."'");
  371. $exists = false;
  372. while ($row = Database::fetch_array($rs)) {
  373. if($row['id']!=$id)
  374. $exists = true;
  375. }
  376. if ($exists) {
  377. $msg=get_lang('SessionNameAlreadyExists');
  378. return $msg;
  379. } else {
  380. $sql="UPDATE $tbl_session " .
  381. "SET name='".Database::escape_string($name)."',
  382. date_start='".$date_start."',
  383. date_end='".$date_end."',
  384. id_coach='".$id_coach."',
  385. nb_days_access_before_beginning = ".$nb_days_acess_before.",
  386. nb_days_access_after_end = ".$nb_days_acess_after.",
  387. session_category_id = ".$id_session_category." ,
  388. visibility= ".$id_visibility."
  389. WHERE id='$id'";
  390. Database::query($sql);
  391. return $id;
  392. }
  393. }
  394. }
  395. /**
  396. * Delete session
  397. * @author Carlos Vargas from existing code
  398. * @param array id_checked
  399. * @param boolean optional, true if the function is called by a webservice, false otherwise.
  400. * @return void Nothing, or false on error
  401. * The parameters is a array to delete sessions
  402. **/
  403. public static function delete_session ($id_checked,$from_ws = false) {
  404. $tbl_session= Database::get_main_table(TABLE_MAIN_SESSION);
  405. $tbl_session_rel_course= Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  406. $tbl_session_rel_course_rel_user= Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  407. $tbl_session_rel_user= Database::get_main_table(TABLE_MAIN_SESSION_USER);
  408. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  409. $tbl_url_session = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  410. global $_user;
  411. if(is_array($id_checked)) {
  412. $id_checked = Database::escape_string(implode(',',$id_checked));
  413. } else {
  414. $id_checked = intval($id_checked);
  415. }
  416. if (!api_is_platform_admin() && !$from_ws) {
  417. $sql = 'SELECT session_admin_id FROM '.Database :: get_main_table(TABLE_MAIN_SESSION).' WHERE id='.$id_checked;
  418. $rs = Database::query($sql);
  419. if (Database::result($rs,0,0)!=$_user['user_id']) {
  420. api_not_allowed(true);
  421. }
  422. }
  423. Database::query("DELETE FROM $tbl_session WHERE id IN($id_checked)");
  424. Database::query("DELETE FROM $tbl_session_rel_course WHERE id_session IN($id_checked)");
  425. Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session IN($id_checked)");
  426. Database::query("DELETE FROM $tbl_session_rel_user WHERE id_session IN($id_checked)");
  427. Database::query("DELETE FROM $tbl_url_session WHERE session_id IN($id_checked)");
  428. // delete extra session fields
  429. $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  430. $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
  431. // Delete extra fields from session where field variable is "SECCION"
  432. $sql = "SELECT t_sfv.field_id FROM $t_sfv t_sfv, $t_sf t_sf WHERE t_sfv.session_id = '$id_checked' AND t_sf.field_variable = 'SECCION' ";
  433. $rs_field = Database::query($sql);
  434. $field_id = 0;
  435. if (Database::num_rows($rs_field) == 1) {
  436. $row_field = Database::fetch_row($rs_field);
  437. $field_id = $row_field[0];
  438. $sql_delete_sfv = "DELETE FROM $t_sfv WHERE session_id = '$id_checked' AND field_id = '$field_id'";
  439. $rs_delete_sfv = Database::query($sql_delete_sfv);
  440. }
  441. $sql = "SELECT * FROM $t_sfv WHERE field_id = '$field_id' ";
  442. $rs_field_id = Database::query($sql);
  443. if (Database::num_rows($rs_field_id) == 0) {
  444. $sql_delete_sf = "DELETE FROM $t_sf WHERE id = '$field_id'";
  445. $rs_delete_sf = Database::query($sql_delete_sf);
  446. }
  447. /*
  448. $sql = "SELECT distinct field_id FROM $t_sfv WHERE session_id = '$id_checked'";
  449. $res_field_ids = @Database::query($sql);
  450. if (Database::num_rows($res_field_ids) > 0) {
  451. while($row_field_id = Database::fetch_row($res_field_ids)){
  452. $field_ids[] = $row_field_id[0];
  453. }
  454. }
  455. //delete from table_session_field_value from a given session id
  456. $sql_session_field_value = "DELETE FROM $t_sfv WHERE session_id = '$id_checked'";
  457. @Database::query($sql_session_field_value);
  458. $sql = "SELECT distinct field_id FROM $t_sfv";
  459. $res_field_all_ids = @Database::query($sql);
  460. if (Database::num_rows($res_field_all_ids) > 0) {
  461. while($row_field_all_id = Database::fetch_row($res_field_all_ids)){
  462. $field_all_ids[] = $row_field_all_id[0];
  463. }
  464. }
  465. if (count($field_ids) > 0 && count($field_all_ids) > 0) {
  466. foreach($field_ids as $field_id) {
  467. // check if field id is used into table field value
  468. if (in_array($field_id,$field_all_ids)) {
  469. continue;
  470. } else {
  471. $sql_session_field = "DELETE FROM $t_sf WHERE id = '$field_id'";
  472. Database::query($sql_session_field);
  473. }
  474. }
  475. }
  476. */
  477. // Add event to system log
  478. $user_id = api_get_user_id();
  479. event_system(LOG_SESSION_DELETE, LOG_SESSION_ID, $id_checked, api_get_utc_datetime(), $user_id);
  480. }
  481. /**
  482. * Subscribes users to the given session and optionally (default) unsubscribes previous users
  483. * @author Carlos Vargas from existing code
  484. * @param integer Session ID
  485. * @param array List of user IDs
  486. * @param bool Whether to unsubscribe existing users (true, default) or not (false)
  487. * @return void Nothing, or false on error
  488. **/
  489. public static function suscribe_users_to_session($id_session, $user_list, $session_visibility = SESSION_VISIBLE_READ_ONLY, $empty_users=true, $send_email=false) {
  490. if ($id_session!= strval(intval($id_session))) return false;
  491. foreach($user_list as $intUser){
  492. if ($intUser!= strval(intval($intUser))) return false;
  493. }
  494. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  495. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  496. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  497. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  498. $session_info = api_get_session_info($id_session);
  499. $session_name = $session_info['name'];
  500. //from function parameter
  501. if (empty($session_visibility)) {
  502. $session_visibility = $session_info['visibility']; //loaded from DB
  503. //default status loaded if empty
  504. if (empty($session_visibility))
  505. $session_visibility = SESSION_VISIBLE_READ_ONLY; // by default readonly 1
  506. } else {
  507. if (!in_array($session_visibility, array(SESSION_VISIBLE_READ_ONLY, SESSION_VISIBLE, SESSION_INVISIBLE))) {
  508. $session_visibility = SESSION_VISIBLE_READ_ONLY;
  509. }
  510. }
  511. $sql = "SELECT id_user FROM $tbl_session_rel_course_rel_user WHERE id_session = '$id_session' ";
  512. $result = Database::query($sql);
  513. $existingUsers = array();
  514. while($row = Database::fetch_array($result)) {
  515. $existingUsers[] = $row['id_user'];
  516. }
  517. $sql = "SELECT course_code FROM $tbl_session_rel_course WHERE id_session = '$id_session'";
  518. $result = Database::query($sql);
  519. $course_list = array();
  520. while($row = Database::fetch_array($result)) {
  521. $course_list[]=$row['course_code'];
  522. }
  523. if ($send_email) {
  524. //global $_configuration;
  525. //sending emails only
  526. if (is_array($user_list) && count($user_list)>0) {
  527. foreach($user_list as $enreg_user) {
  528. if (!in_array($enreg_user,$existingUsers )) {
  529. //send email
  530. $emailbody = '';
  531. $emailheaders = '';
  532. $user_info = UserManager::get_user_info_by_id($enreg_user);
  533. $firstname = $user_info['firstname'];
  534. $lastname = $user_info['lastname'];
  535. $email = $user_info['email'];
  536. $emailto = '"'.$firstname.' '.$lastname.'" <'.$email.'>';
  537. $emailsubject = '['.get_setting('siteName').'] '.get_lang('YourReg').' '.get_setting('siteName');
  538. $emailheaders = 'From: '.get_setting('administratorName').' '.get_setting('administratorSurname').' <'.get_setting('emailAdministrator').">\n";
  539. $emailheaders .= 'Reply-To: '.get_setting('emailAdministrator');
  540. $emailbody = get_lang('Dear')." ".stripslashes(api_get_person_name($firstname, $lastname)).",\n\n".sprintf(get_lang('YouAreRegisterToSessionX'), $session_name) ." \n\n" .get_lang('Address') ." ". get_setting('siteName') ." ". get_lang('Is') ." : ". api_get_path(WEB_PATH) ."\n\n". get_lang('Problem'). "\n\n". get_lang('Formula').",\n\n".get_setting('administratorName')." ".get_setting('administratorSurname')."\n". get_lang('Manager'). " ".get_setting('siteName')."\nT. ".get_setting('administratorTelephone')."\n" .get_lang('Email') ." : ".get_setting('emailAdministrator');
  541. @api_send_mail($emailto, $emailsubject, $emailbody, $emailheaders);
  542. }
  543. }
  544. }
  545. }
  546. foreach ($course_list as $enreg_course) {
  547. // for each course in the session
  548. $nbr_users=0;
  549. $enreg_course = Database::escape_string($enreg_course);
  550. // delete existing users
  551. if ($empty_users) {
  552. foreach ($existingUsers as $existing_user) {
  553. if (!in_array($existing_user, $user_list)) {
  554. $sql = "DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session='$id_session' AND course_code='$enreg_course' AND id_user='$existing_user' ";
  555. Database::query($sql);
  556. if (Database::affected_rows()) {
  557. $nbr_users--;
  558. }
  559. }
  560. }
  561. }
  562. //Replace with this new function
  563. //
  564. // insert new users into session_rel_course_rel_user and ignore if they already exist
  565. foreach ($user_list as $enreg_user) {
  566. if(!in_array($enreg_user, $existingUsers)) {
  567. $enreg_user = Database::escape_string($enreg_user);
  568. $insert_sql = "INSERT IGNORE INTO $tbl_session_rel_course_rel_user(id_session,course_code,id_user,visibility) VALUES('$id_session','$enreg_course','$enreg_user','$session_visibility')";
  569. Database::query($insert_sql);
  570. if(Database::affected_rows()) {
  571. $nbr_users++;
  572. }
  573. }
  574. }
  575. // count users in this session-course relation
  576. $sql = "SELECT COUNT(id_user) as nbUsers FROM $tbl_session_rel_course_rel_user WHERE id_session='$id_session' AND course_code='$enreg_course' AND status<>2";
  577. $rs = Database::query($sql);
  578. list($nbr_users) = Database::fetch_array($rs);
  579. // update the session-course relation to add the users total
  580. $update_sql = "UPDATE $tbl_session_rel_course SET nbr_users=$nbr_users WHERE id_session='$id_session' AND course_code='$enreg_course'";
  581. Database::query($update_sql);
  582. }
  583. // Delete users from the session
  584. if ($empty_users===true) {
  585. Database::query("DELETE FROM $tbl_session_rel_user WHERE id_session = $id_session AND relation_type<>".SESSION_RELATION_TYPE_RRHH."");
  586. }
  587. // Insert missing users into session
  588. $nbr_users = 0;
  589. foreach ($user_list as $enreg_user) {
  590. $enreg_user = Database::escape_string($enreg_user);
  591. $nbr_users++;
  592. $insert_sql = "INSERT IGNORE INTO $tbl_session_rel_user (id_session, id_user) VALUES ('$id_session','$enreg_user')";
  593. Database::query($insert_sql);
  594. }
  595. // update number of users in the session
  596. $nbr_users = count($user_list);
  597. if ($empty_users) {
  598. // update number of users in the session
  599. $update_sql = "UPDATE $tbl_session SET nbr_users= $nbr_users WHERE id='$id_session' ";
  600. Database::query($update_sql);
  601. } else {
  602. $update_sql = "UPDATE $tbl_session SET nbr_users= nbr_users + $nbr_users WHERE id='$id_session' ";
  603. Database::query($update_sql);
  604. }
  605. }
  606. function subscribe_users_to_session_course($user_list, $session_id, $course_code, $session_visibility = SESSION_VISIBLE_READ_ONLY ) {
  607. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  608. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  609. if (empty($user_list) || empty($session_id) || empty($course_code)) {
  610. return false;
  611. }
  612. $session_id = intval($session_id);
  613. $course_code = Database::escape_string($course_code);
  614. $session_visibility = intval($session_visibility);
  615. $nbr_users = 0;
  616. foreach ($user_list as $enreg_user) {
  617. //if (!in_array($enreg_user, $existingUsers)) {
  618. $enreg_user = intval($enreg_user);
  619. $insert_sql = "INSERT IGNORE INTO $tbl_session_rel_course_rel_user(id_session,course_code,id_user,visibility)
  620. VALUES ('$session_id','$course_code','$enreg_user','$session_visibility')";
  621. Database::query($insert_sql);
  622. if (Database::affected_rows()) {
  623. $nbr_users++;
  624. }
  625. //}
  626. }
  627. // count users in this session-course relation
  628. $sql = "SELECT COUNT(id_user) as nbUsers FROM $tbl_session_rel_course_rel_user WHERE id_session='$id_session' AND course_code='$enreg_course' AND status<>2";
  629. $rs = Database::query($sql);
  630. list($nbr_users) = Database::fetch_array($rs);
  631. // update the session-course relation to add the users total
  632. $update_sql = "UPDATE $tbl_session_rel_course SET nbr_users=$nbr_users WHERE id_session='$id_session' AND course_code='$enreg_course'";
  633. Database::query($update_sql);
  634. }
  635. /**
  636. * Unsubscribe user from session
  637. *
  638. * @param int Session id
  639. * @param int User id
  640. * @return bool True in case of success, false in case of error
  641. */
  642. public static function unsubscribe_user_from_session($session_id, $user_id) {
  643. $session_id = (int)$session_id;
  644. $user_id = (int)$user_id;
  645. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  646. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  647. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  648. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  649. $delete_sql = "DELETE FROM $tbl_session_rel_user WHERE id_session = '$session_id' AND id_user ='$user_id' AND relation_type<>".SESSION_RELATION_TYPE_RRHH."";
  650. Database::query($delete_sql);
  651. $return = Database::affected_rows();
  652. // Update number of users
  653. $update_sql = "UPDATE $tbl_session SET nbr_users= nbr_users - $return WHERE id='$session_id' ";
  654. Database::query($update_sql);
  655. // Get the list of courses related to this session
  656. $course_list = SessionManager::get_course_list_by_session_id($session_id);
  657. if(!empty($course_list)) {
  658. foreach($course_list as $course) {
  659. $course_code = $course['code'];
  660. // Delete user from course
  661. Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session='$session_id' AND course_code='$course_code' AND id_user='$user_id'");
  662. if(Database::affected_rows()) {
  663. // Update number of users in this relation
  664. Database::query("UPDATE $tbl_session_rel_course SET nbr_users=nbr_users - 1 WHERE id_session='$session_id' AND course_code='$course_code'");
  665. }
  666. }
  667. }
  668. return true;
  669. }
  670. /** Subscribes courses to the given session and optionally (default) unsubscribes previous users
  671. * @author Carlos Vargas from existing code
  672. * @param int Session ID
  673. * @param array List of courses IDs
  674. * @param bool Whether to unsubscribe existing users (true, default) or not (false)
  675. * @return void Nothing, or false on error
  676. **/
  677. public static function add_courses_to_session ($id_session, $course_list, $empty_courses=true) {
  678. // security checks
  679. if ($id_session!= strval(intval($id_session))) { return false; }
  680. //foreach($course_list as $intCourse){
  681. // if ($intCourse!= strval(intval($intCourse))) { return false; }
  682. //}
  683. // initialisation
  684. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  685. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  686. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  687. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  688. $tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
  689. // get general coach ID
  690. $id_coach = Database::query("SELECT id_coach FROM $tbl_session WHERE id=$id_session");
  691. $id_coach = Database::fetch_array($id_coach);
  692. $id_coach = $id_coach[0];
  693. // get list of courses subscribed to this session
  694. $rs = Database::query("SELECT course_code FROM $tbl_session_rel_course WHERE id_session=$id_session");
  695. $existingCourses = Database::store_result($rs);
  696. $nbr_courses=count($existingCourses);
  697. // get list of users subscribed to this session
  698. $sql="SELECT id_user
  699. FROM $tbl_session_rel_user
  700. WHERE id_session = $id_session AND relation_type<>".SESSION_RELATION_TYPE_RRHH."";
  701. $result=Database::query($sql);
  702. $user_list=Database::store_result($result);
  703. // remove existing courses from the session
  704. if ($empty_courses===true) {
  705. foreach ($existingCourses as $existingCourse) {
  706. if (!in_array($existingCourse['course_code'], $course_list)){
  707. Database::query("DELETE FROM $tbl_session_rel_course WHERE course_code='".$existingCourse['course_code']."' AND id_session=$id_session");
  708. Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE course_code='".$existingCourse['course_code']."' AND id_session=$id_session");
  709. }
  710. }
  711. $nbr_courses=0;
  712. }
  713. // Pass through the courses list we want to add to the session
  714. foreach ($course_list as $enreg_course) {
  715. $enreg_course = Database::escape_string($enreg_course);
  716. $exists = false;
  717. // check if the course we want to add is already subscribed
  718. foreach ($existingCourses as $existingCourse) {
  719. if ($enreg_course == $existingCourse['course_code']) {
  720. $exists=true;
  721. }
  722. }
  723. if (!$exists) {
  724. //if the course isn't subscribed yet
  725. $sql_insert_rel_course= "INSERT INTO $tbl_session_rel_course (id_session,course_code) VALUES ('$id_session','$enreg_course')";
  726. Database::query($sql_insert_rel_course);
  727. //We add the current course in the existing courses array, to avoid adding another time the current course
  728. $existingCourses[]=array('course_code'=>$enreg_course);
  729. $nbr_courses++;
  730. // subscribe all the users from the session to this course inside the session
  731. $nbr_users=0;
  732. foreach ($user_list as $enreg_user) {
  733. $enreg_user_id = Database::escape_string($enreg_user['id_user']);
  734. $sql_insert = "INSERT IGNORE INTO $tbl_session_rel_course_rel_user (id_session,course_code,id_user) VALUES ('$id_session','$enreg_course','$enreg_user_id')";
  735. Database::query($sql_insert);
  736. if (Database::affected_rows()) {
  737. $nbr_users++;
  738. }
  739. }
  740. Database::query("UPDATE $tbl_session_rel_course SET nbr_users=$nbr_users WHERE id_session='$id_session' AND course_code='$enreg_course'");
  741. }
  742. }
  743. Database::query("UPDATE $tbl_session SET nbr_courses=$nbr_courses WHERE id='$id_session'");
  744. }
  745. /**
  746. * Unsubscribe course from a session
  747. *
  748. * @param int Session id
  749. * @param int Course id
  750. * @return bool True in case of success, false otherwise
  751. */
  752. public static function unsubscribe_course_from_session($session_id, $course_id) {
  753. $session_id = (int)$session_id;
  754. $course_id = (int)$course_id;
  755. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  756. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  757. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  758. // Get course code
  759. $course_code = CourseManager::get_course_code_from_course_id($course_id);
  760. if($course_code == 0) {
  761. return false;
  762. }
  763. // Unsubscribe course
  764. Database::query("DELETE FROM $tbl_session_rel_course WHERE course_code='$course_code' AND id_session='$session_id'");
  765. $nb_affected = Database::affected_rows();
  766. Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE course_code='$course_code' AND id_session='$session_id'");
  767. if($nb_affected > 0) {
  768. // Update number of courses in the session
  769. Database::query("UPDATE $tbl_session SET nbr_courses= nbr_courses + $nb_affected WHERE id='$session_id' ");
  770. return true;
  771. } else {
  772. return false;
  773. }
  774. }
  775. /**
  776. * Creates a new extra field for a given session
  777. * @param string Field's internal variable name
  778. * @param int Field's type
  779. * @param string Field's language var name
  780. * @return int new extra field id
  781. */
  782. public static function create_session_extra_field ($fieldvarname, $fieldtype, $fieldtitle) {
  783. // database table definition
  784. $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  785. $fieldvarname = Database::escape_string($fieldvarname);
  786. $fieldtitle = Database::escape_string($fieldtitle);
  787. $fieldtype = (int)$fieldtype;
  788. $time = time();
  789. $sql_field = "SELECT id FROM $t_sf WHERE field_variable = '$fieldvarname'";
  790. $res_field = Database::query($sql_field);
  791. $r_field = Database::fetch_row($res_field);
  792. if (Database::num_rows($res_field)>0) {
  793. $field_id = $r_field[0];
  794. } else {
  795. // save new fieldlabel into course_field table
  796. $sql = "SELECT MAX(field_order) FROM $t_sf";
  797. $res = Database::query($sql);
  798. $order = 0;
  799. if (Database::num_rows($res)>0) {
  800. $row = Database::fetch_row($res);
  801. $order = $row[0]+1;
  802. }
  803. $sql = "INSERT INTO $t_sf
  804. SET field_type = '$fieldtype',
  805. field_variable = '$fieldvarname',
  806. field_display_text = '$fieldtitle',
  807. field_order = '$order',
  808. tms = FROM_UNIXTIME($time)";
  809. $result = Database::query($sql);
  810. $field_id=Database::insert_id();
  811. }
  812. return $field_id;
  813. }
  814. /**
  815. * Update an extra field value for a given session
  816. * @param integer Course ID
  817. * @param string Field variable name
  818. * @param string Field value
  819. * @return boolean true if field updated, false otherwise
  820. */
  821. public static function update_session_extra_field_value ($session_id,$fname,$fvalue='') {
  822. $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  823. $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
  824. $fname = Database::escape_string($fname);
  825. $session_id = (int)$session_id;
  826. $fvalues = '';
  827. if(is_array($fvalue))
  828. {
  829. foreach($fvalue as $val)
  830. {
  831. $fvalues .= Database::escape_string($val).';';
  832. }
  833. if(!empty($fvalues))
  834. {
  835. $fvalues = substr($fvalues,0,-1);
  836. }
  837. }
  838. else
  839. {
  840. $fvalues = Database::escape_string($fvalue);
  841. }
  842. $sqlsf = "SELECT * FROM $t_sf WHERE field_variable='$fname'";
  843. $ressf = Database::query($sqlsf);
  844. if(Database::num_rows($ressf)==1)
  845. { //ok, the field exists
  846. // Check if enumerated field, if the option is available
  847. $rowsf = Database::fetch_array($ressf);
  848. $tms = time();
  849. $sqlsfv = "SELECT * FROM $t_sfv WHERE session_id = '$session_id' AND field_id = '".$rowsf['id']."' ORDER BY id";
  850. $ressfv = Database::query($sqlsfv);
  851. $n = Database::num_rows($ressfv);
  852. if ($n>1) {
  853. //problem, we already have to values for this field and user combination - keep last one
  854. while($rowsfv = Database::fetch_array($ressfv))
  855. {
  856. if($n > 1)
  857. {
  858. $sqld = "DELETE FROM $t_sfv WHERE id = ".$rowsfv['id'];
  859. $resd = Database::query($sqld);
  860. $n--;
  861. }
  862. $rowsfv = Database::fetch_array($ressfv);
  863. if($rowsfv['field_value'] != $fvalues)
  864. {
  865. $sqlu = "UPDATE $t_sfv SET field_value = '$fvalues', tms = FROM_UNIXTIME($tms) WHERE id = ".$rowsfv['id'];
  866. $resu = Database::query($sqlu);
  867. return($resu?true:false);
  868. }
  869. return true;
  870. }
  871. } else if ($n==1) {
  872. //we need to update the current record
  873. $rowsfv = Database::fetch_array($ressfv);
  874. if($rowsfv['field_value'] != $fvalues)
  875. {
  876. $sqlu = "UPDATE $t_sfv SET field_value = '$fvalues', tms = FROM_UNIXTIME($tms) WHERE id = ".$rowsfv['id'];
  877. //error_log('UM::update_extra_field_value: '.$sqlu);
  878. $resu = Database::query($sqlu);
  879. return($resu?true:false);
  880. }
  881. return true;
  882. } else {
  883. $sqli = "INSERT INTO $t_sfv (session_id,field_id,field_value,tms) " .
  884. "VALUES ('$session_id',".$rowsf['id'].",'$fvalues',FROM_UNIXTIME($tms))";
  885. //error_log('UM::update_extra_field_value: '.$sqli);
  886. $resi = Database::query($sqli);
  887. return($resi?true:false);
  888. }
  889. } else {
  890. return false; //field not found
  891. }
  892. }
  893. /**
  894. * Checks the relationship between a session and a course.
  895. * @param int $session_id
  896. * @param int $course_id
  897. * @return bool Returns TRUE if the session and the course are related, FALSE otherwise.
  898. * */
  899. public static function relation_session_course_exist ($session_id, $course_id) {
  900. $tbl_session_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  901. $return_value = false;
  902. $sql= "SELECT course_code FROM $tbl_session_course WHERE id_session = ".Database::escape_string($session_id)." AND course_code = '".Database::escape_string($course_id)."'";
  903. $result = Database::query($sql);
  904. $num = Database::num_rows($result);
  905. if ($num>0) {
  906. $return_value = true;
  907. }
  908. return $return_value;
  909. }
  910. /**
  911. * Get the session information by name
  912. * @param string session name
  913. * @return mixed false if the session does not exist, array if the session exist
  914. * */
  915. public static function get_session_by_name ($session_name) {
  916. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  917. $sql = 'SELECT id, id_coach, date_start, date_end FROM '.$tbl_session.' WHERE name="'.Database::escape_string($session_name).'"';
  918. $result = Database::query($sql);
  919. $num = Database::num_rows($result);
  920. if ($num>0){
  921. return Database::fetch_array($result);
  922. } else {
  923. return false;
  924. }
  925. }
  926. /**
  927. * Create a session category
  928. * @author Jhon Hinojosa <jhon.hinojosa@dokeos.com>, from existing code
  929. * @param string name
  930. * @param integer year_start
  931. * @param integer month_start
  932. * @param integer day_start
  933. * @param integer year_end
  934. * @param integer month_end
  935. * @param integer day_end
  936. * @return $id_session;
  937. **/
  938. public static function create_category_session($sname,$syear_start,$smonth_start,$sday_start,$syear_end,$smonth_end, $sday_end){
  939. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  940. $name= trim($sname);
  941. $year_start= intval($syear_start);
  942. $month_start=intval($smonth_start);
  943. $day_start=intval($sday_start);
  944. $year_end=intval($syear_end);
  945. $month_end=intval($smonth_end);
  946. $day_end=intval($sday_end);
  947. $date_start = "$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
  948. $date_end = "$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
  949. if (empty($name)) {
  950. $msg=get_lang('SessionCategoryNameIsRequired');
  951. return $msg;
  952. } elseif (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start)) {
  953. $msg=get_lang('InvalidStartDate');
  954. return $msg;
  955. } elseif (!$month_end && !$day_end && !$year_end) {
  956. $date_end = "null";
  957. } elseif (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end)) {
  958. $msg=get_lang('InvalidEndDate');
  959. return $msg;
  960. } elseif($date_start >= $date_end) {
  961. $msg=get_lang('StartDateShouldBeBeforeEndDate');
  962. return $msg;
  963. }
  964. $access_url_id = api_get_current_access_url_id();
  965. $sql = "INSERT INTO $tbl_session_category (name, date_start, date_end, access_url_id)
  966. VALUES('".Database::escape_string($name)."','$date_start','$date_end', '$access_url_id')";
  967. Database::query($sql);
  968. $id_session = Database::insert_id();
  969. // Add event to system log
  970. $user_id = api_get_user_id();
  971. event_system(LOG_SESSION_CATEGORY_CREATE, LOG_SESSION_CATEGORY_ID, $id_session, api_get_utc_datetime(), $user_id);
  972. return $id_session;
  973. }
  974. /**
  975. * Edit a sessions categories
  976. * @author Jhon Hinojosa <jhon.hinojosa@dokeos.com>,from existing code
  977. * @param integer id
  978. * @param string name
  979. * @param integer year_start
  980. * @param integer month_start
  981. * @param integer day_start
  982. * @param integer year_end
  983. * @param integer month_end
  984. * @param integer day_end
  985. * @return $id;
  986. * The parameter id is a primary key
  987. **/
  988. public static function edit_category_session($id, $sname,$syear_start,$smonth_start,$sday_start,$syear_end,$smonth_end, $sday_end){
  989. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  990. $name= trim($sname);
  991. $year_start= intval($syear_start);
  992. $month_start=intval($smonth_start);
  993. $day_start=intval($sday_start);
  994. $year_end=intval($syear_end);
  995. $month_end=intval($smonth_end);
  996. $day_end=intval($sday_end);
  997. $id=intval($id);
  998. $date_start = "$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
  999. $date_end = "$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
  1000. if (empty($name)) {
  1001. $msg=get_lang('SessionCategoryNameIsRequired');
  1002. return $msg;
  1003. } elseif (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start)) {
  1004. $msg=get_lang('InvalidStartDate');
  1005. return $msg;
  1006. } elseif (!$month_end && !$day_end && !$year_end) {
  1007. $date_end = null;
  1008. } elseif (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end)) {
  1009. $msg=get_lang('InvalidEndDate');
  1010. return $msg;
  1011. } elseif($date_start >= $date_end) {
  1012. $msg=get_lang('StartDateShouldBeBeforeEndDate');
  1013. return $msg;
  1014. }
  1015. if ( $date_end <> null ) {
  1016. $sql = "UPDATE $tbl_session_category SET name = '".Database::escape_string($name)."', date_start = '$date_start' ".
  1017. ", date_end = '$date_end' WHERE id= '".$id."' ";
  1018. } else {
  1019. $sql = "UPDATE $tbl_session_category SET name = '".Database::escape_string($name)."', date_start = '$date_start' ".
  1020. ", date_end = NULL WHERE id= '".$id."' ";
  1021. }
  1022. $result = Database::query($sql);
  1023. return ($result? true:false);
  1024. }
  1025. /**
  1026. * Delete sessions categories
  1027. * @author Jhon Hinojosa <jhon.hinojosa@dokeos.com>, from existing code
  1028. * @param array id_checked
  1029. * @param bool include delete session
  1030. * @param bool optional, true if the function is called by a webservice, false otherwise.
  1031. * @return void Nothing, or false on error
  1032. * The parameters is a array to delete sessions
  1033. **/
  1034. public static function delete_session_category($id_checked, $delete_session = false,$from_ws = false){
  1035. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  1036. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  1037. if (is_array($id_checked)) {
  1038. $id_checked = Database::escape_string(implode(',',$id_checked));
  1039. } else {
  1040. $id_checked = intval($id_checked);
  1041. }
  1042. //Setting session_category_id to 0
  1043. $sql = "UPDATE $tbl_session SET session_category_id = 0 WHERE session_category_id IN (".$id_checked.")";
  1044. $result = Database::query($sql);
  1045. $sql = "SELECT id FROM $tbl_session WHERE session_category_id IN (".$id_checked.")";
  1046. $result = @Database::query($sql);
  1047. while ($rows = Database::fetch_array($result)) {
  1048. $session_id = $rows['id'];
  1049. if ($delete_session) {
  1050. if ($from_ws) {
  1051. SessionManager::delete_session($session_id,true);
  1052. } else {
  1053. SessionManager::delete_session($session_id);
  1054. }
  1055. }
  1056. }
  1057. $sql = "DELETE FROM $tbl_session_category WHERE id IN (".$id_checked.")";
  1058. $rs = @Database::query($sql);
  1059. $result = Database::affected_rows();
  1060. // Add event to system log
  1061. $user_id = api_get_user_id();
  1062. event_system(LOG_SESSION_CATEGORY_DELETE, LOG_SESSION_CATEGORY_ID, $id_checked, api_get_utc_datetime(), $user_id);
  1063. // delete extra session fields where field variable is "PERIODO"
  1064. $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  1065. $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
  1066. $sql = "SELECT t_sfv.field_id FROM $t_sfv t_sfv, $t_sf t_sf WHERE t_sfv.session_id = '$id_checked' AND t_sf.field_variable = 'PERIODO' ";
  1067. $rs_field = Database::query($sql);
  1068. $field_id = 0;
  1069. if (Database::num_rows($rs_field) > 0) {
  1070. $row_field = Database::fetch_row($rs_field);
  1071. $field_id = $row_field[0];
  1072. $sql_delete_sfv = "DELETE FROM $t_sfv WHERE session_id = '$id_checked' AND field_id = '$field_id'";
  1073. $rs_delete_sfv = Database::query($sql_delete_sfv);
  1074. }
  1075. $sql = "SELECT * FROM $t_sfv WHERE field_id = '$field_id' ";
  1076. $rs_field_id = Database::query($sql);
  1077. if (Database::num_rows($rs_field_id) == 0) {
  1078. $sql_delete_sf = "DELETE FROM $t_sf WHERE id = '$field_id'";
  1079. $rs_delete_sf = Database::query($sql_delete_sf);
  1080. }
  1081. return true;
  1082. }
  1083. /**
  1084. * Get a list of sessions of which the given conditions match with an = 'cond'
  1085. * @param array $conditions a list of condition (exemple : array('status =' =>STUDENT) or array('s.name LIKE' => "%$needle%")
  1086. * @param array $order_by a list of fields on which sort
  1087. * @return array An array with all sessions of the platform.
  1088. * @todo optional course code parameter, optional sorting parameters...
  1089. */
  1090. public static function get_sessions_list($conditions = array(), $order_by = array()) {
  1091. $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
  1092. $session_category_table = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  1093. $user_table = Database::get_main_table(TABLE_MAIN_USER);
  1094. $table_access_url_rel_session = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  1095. $access_url_id = api_get_current_access_url_id();
  1096. $return_array = array();
  1097. $sql_query = " SELECT s.id, s.name, s.nbr_courses, s.date_start, s.date_end, u.firstname, u.lastname, sc.name as category_name, s.promotion_id
  1098. FROM $session_table s
  1099. INNER JOIN $user_table u ON s.id_coach = u.user_id
  1100. INNER JOIN $table_access_url_rel_session ar ON ar.session_id = s.id
  1101. LEFT JOIN $session_category_table sc ON s.session_category_id = sc.id
  1102. WHERE ar.access_url_id = $access_url_id ";
  1103. if (count($conditions)>0) {
  1104. $sql_query .= ' AND ';
  1105. foreach ($conditions as $field=>$value) {
  1106. $field = Database::escape_string($field);
  1107. $value = Database::escape_string($value);
  1108. $sql_query .= $field." '".$value."'";
  1109. }
  1110. }
  1111. if (count($order_by)>0) {
  1112. $sql_query .= ' ORDER BY '.Database::escape_string(implode(',',$order_by));
  1113. }
  1114. //echo $sql_query;
  1115. $sql_result = Database::query($sql_query);
  1116. if (Database::num_rows($sql_result)>0) {
  1117. while ($result = Database::fetch_array($sql_result)) {
  1118. $return_array[$result['id']] = $result;
  1119. }
  1120. }
  1121. return $return_array;
  1122. }
  1123. /**
  1124. * Get the session category information by id
  1125. * @param string session category ID
  1126. * @return mixed false if the session category does not exist, array if the session category exists
  1127. */
  1128. public static function get_session_category ($id) {
  1129. $id = intval($id);
  1130. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  1131. $sql = "SELECT id, name, date_start, date_end FROM $tbl_session_category WHERE id= $id";
  1132. $result = Database::query($sql);
  1133. $num = Database::num_rows($result);
  1134. if ($num>0){
  1135. return Database::fetch_array($result);
  1136. } else {
  1137. return false;
  1138. }
  1139. }
  1140. /**
  1141. * Get all session categories (filter by access_url_id)
  1142. * @return mixed false if the session category does not exist, array if the session category exists
  1143. */
  1144. public static function get_all_session_category() {
  1145. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  1146. $id = api_get_current_access_url_id();
  1147. $sql = 'SELECT * FROM '.$tbl_session_category.' WHERE access_url_id ="'.$id.'" ORDER BY name ASC';
  1148. $result = Database::query($sql);
  1149. if (Database::num_rows($result) > 0 ){
  1150. $data = Database::store_result($result,'ASSOC');
  1151. return $data;
  1152. } else {
  1153. return false;
  1154. }
  1155. }
  1156. /**
  1157. * Assign a coach to course in session with status = 2
  1158. * @param int - user id
  1159. * @param int - session id
  1160. * @param string - course code
  1161. * @param bool - optional, if is true the user don't be a coach now, otherwise it'll assign a coach
  1162. * @return bool true if there are affected rows, otherwise false
  1163. */
  1164. public static function set_coach_to_course_session($user_id, $session_id = 0, $course_code = '',$nocoach = false) {
  1165. // Definition of variables
  1166. $user_id = intval($user_id);
  1167. if (!empty($session_id)) {
  1168. $session_id = intval($session_id);
  1169. } else {
  1170. $session_id = api_get_session_id();
  1171. }
  1172. if (!empty($course_code)) {
  1173. $course_code = Database::escape_string($course_code);
  1174. } else {
  1175. $course_code = api_get_course_id();
  1176. }
  1177. // definitios of tables
  1178. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  1179. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  1180. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  1181. // check if user is a teacher
  1182. $sql= "SELECT * FROM $tbl_user WHERE status='1' AND user_id = '$user_id'";
  1183. $rs_check_user = Database::query($sql);
  1184. if (Database::num_rows($rs_check_user) > 0) {
  1185. if ($nocoach) {
  1186. // check if user_id exits int session_rel_user
  1187. $sql = "SELECT id_user FROM $tbl_session_rel_user WHERE id_session = '$session_id' AND id_user = '$user_id'";
  1188. $res = Database::query($sql);
  1189. if (Database::num_rows($res) > 0) {
  1190. // The user don't be a coach now
  1191. $sql = "UPDATE $tbl_session_rel_course_rel_user SET status = 0 WHERE id_session = '$session_id' AND course_code = '$course_code' AND id_user = '$user_id' ";
  1192. $rs_update = Database::query($sql);
  1193. if (Database::affected_rows() > 0) return true;
  1194. else return false;
  1195. } else {
  1196. // The user don't be a coach now
  1197. $sql = "DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session = '$session_id' AND course_code = '$course_code' AND id_user = '$user_id' ";
  1198. $rs_delete = Database::query($sql);
  1199. if (Database::affected_rows() > 0) return true;
  1200. else return false;
  1201. }
  1202. } else {
  1203. // Assign user like a coach to course
  1204. // First check if the user is registered in the course
  1205. $sql = "SELECT id_user FROM $tbl_session_rel_course_rel_user WHERE id_session = '$session_id' AND course_code = '$course_code' AND id_user = '$user_id'";
  1206. $rs_check = Database::query($sql);
  1207. //Then update or insert
  1208. if (Database::num_rows($rs_check) > 0) {
  1209. $sql = "UPDATE $tbl_session_rel_course_rel_user SET status = 2 WHERE id_session = '$session_id' AND course_code = '$course_code' AND id_user = '$user_id' ";
  1210. $rs_update = Database::query($sql);
  1211. if (Database::affected_rows() > 0) return true;
  1212. else return false;
  1213. } else {
  1214. $sql = " INSERT INTO $tbl_session_rel_course_rel_user(id_session, course_code, id_user, status) VALUES('$session_id', '$course_code', '$user_id', 2)";
  1215. $rs_insert = Database::query($sql);
  1216. if (Database::affected_rows() > 0) return true;
  1217. else return false;
  1218. }
  1219. }
  1220. } else {
  1221. return false;
  1222. }
  1223. }
  1224. /**
  1225. * Subscribes sessions to human resource manager (Dashboard feature)
  1226. * @param int Human Resource Manager id
  1227. * @param array Sessions id
  1228. * @param int Relation type
  1229. **/
  1230. public static function suscribe_sessions_to_hr_manager($hr_manager_id,$sessions_list) {
  1231. global $_configuration;
  1232. // Database Table Definitions
  1233. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  1234. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  1235. $tbl_session_rel_course_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  1236. $tbl_session_rel_access_url = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  1237. $hr_manager_id = intval($hr_manager_id);
  1238. $affected_rows = 0;
  1239. //Deleting assigned sessions to hrm_id
  1240. if ($_configuration['multiple_access_urls']) {
  1241. $sql = "SELECT id_session FROM $tbl_session_rel_user s INNER JOIN $tbl_session_rel_access_url a ON (a.session_id = s.id_session) WHERE id_user = $hr_manager_id AND relation_type=".SESSION_RELATION_TYPE_RRHH." AND access_url_id = ".api_get_current_access_url_id()."";
  1242. } else {
  1243. $sql = "SELECT id_session FROM $tbl_session_rel_user s WHERE id_user = $hr_manager_id AND relation_type=".SESSION_RELATION_TYPE_RRHH."";
  1244. }
  1245. $result = Database::query($sql);
  1246. if (Database::num_rows($result) > 0) {
  1247. while ($row = Database::fetch_array($result)) {
  1248. $sql = "DELETE FROM $tbl_session_rel_user WHERE id_session = {$row['id_session']} AND id_user = $hr_manager_id AND relation_type=".SESSION_RELATION_TYPE_RRHH." ";
  1249. Database::query($sql);
  1250. }
  1251. }
  1252. /*
  1253. //Deleting assigned courses in sessions to hrm_id
  1254. $sql = "SELECT * FROM $tbl_session_rel_course_user WHERE id_user = $hr_manager_id ";
  1255. $result = Database::query($sql);
  1256. if (Database::num_rows($result) > 0) {
  1257. $sql = "DELETE FROM $tbl_session_rel_course_user WHERE id_user = $hr_manager_id ";
  1258. Database::query($sql);
  1259. }
  1260. */
  1261. // inserting new sessions list
  1262. if (is_array($sessions_list)) {
  1263. foreach ($sessions_list as $session_id) {
  1264. $session_id = intval($session_id);
  1265. $insert_sql = "INSERT IGNORE INTO $tbl_session_rel_user(id_session, id_user, relation_type) VALUES($session_id, $hr_manager_id, '".SESSION_RELATION_TYPE_RRHH."')";
  1266. Database::query($insert_sql);
  1267. $affected_rows = Database::affected_rows();
  1268. }
  1269. }
  1270. return $affected_rows;
  1271. }
  1272. /**
  1273. * Get sessions followed by human resources manager
  1274. * @param int Human resources manager or Session admin id
  1275. * @return array sessions
  1276. */
  1277. public static function get_sessions_followed_by_drh($hr_manager_id) {
  1278. global $_configuration;
  1279. // Database Table Definitions
  1280. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  1281. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  1282. $tbl_session_rel_access_url = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  1283. $hr_manager_id = intval($hr_manager_id);
  1284. $assigned_sessions_to_hrm = array();
  1285. if ($_configuration['multiple_access_urls']) {
  1286. $sql = "SELECT * FROM $tbl_session s INNER JOIN $tbl_session_rel_user sru ON (sru.id_session = s.id) LEFT JOIN $tbl_session_rel_access_url a ON (s.id = a.session_id)
  1287. WHERE sru.id_user = '$hr_manager_id' AND sru.relation_type = '".SESSION_RELATION_TYPE_RRHH."' AND access_url_id = ".api_get_current_access_url_id()."";
  1288. } else {
  1289. $sql = "SELECT * FROM $tbl_session s
  1290. INNER JOIN $tbl_session_rel_user sru ON sru.id_session = s.id AND sru.id_user = '$hr_manager_id' AND sru.relation_type = '".SESSION_RELATION_TYPE_RRHH."' ";
  1291. }
  1292. $rs_assigned_sessions = Database::query($sql);
  1293. if (Database::num_rows($rs_assigned_sessions) > 0) {
  1294. while ($row_assigned_sessions = Database::fetch_array($rs_assigned_sessions)) {
  1295. $assigned_sessions_to_hrm[$row_assigned_sessions['id']] = $row_assigned_sessions;
  1296. }
  1297. }
  1298. return $assigned_sessions_to_hrm;
  1299. }
  1300. /**
  1301. * Gets the list of courses by session filtered by access_url
  1302. * @param int session id
  1303. * @return array list of courses
  1304. */
  1305. public static function get_course_list_by_session_id ($session_id) {
  1306. $tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
  1307. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  1308. // select the courses
  1309. $sql = "SELECT * FROM $tbl_course c INNER JOIN $tbl_session_rel_course src ON c.code = src.course_code
  1310. WHERE src.id_session = '$session_id' ORDER BY title;";
  1311. $result = Database::query($sql);
  1312. $num_rows = Database::num_rows($result);
  1313. $courses = array();
  1314. if ($num_rows > 0) {
  1315. while ($row = Database::fetch_array($result,'ASSOC')) {
  1316. $courses[$row['id']] = $row;
  1317. }
  1318. }
  1319. return $courses;
  1320. }
  1321. /**
  1322. * Get the session id based on the original id and field name in the extra fields. Returns 0 if session was not found
  1323. *
  1324. * @param string Original session id
  1325. * @param string Original field name
  1326. * @return int Session id
  1327. */
  1328. public static function get_session_id_from_original_id($original_session_id_value, $original_session_id_name) {
  1329. $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
  1330. $table_field = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  1331. $sql_session = "SELECT session_id FROM $table_field sf INNER JOIN $t_sfv sfv ON sfv.field_id=sf.id WHERE field_variable='$original_session_id_name' AND field_value='$original_session_id_value'";
  1332. $res_session = Database::query($sql_session);
  1333. $row = Database::fetch_object($res_session);
  1334. if ($row) {
  1335. return $row->session_id;
  1336. } else {
  1337. return 0;
  1338. }
  1339. }
  1340. /**
  1341. * Get users by session
  1342. * @param int sesssion id
  1343. * @param int filter by status
  1344. * @return array a list with an user list
  1345. */
  1346. public static function get_users_by_session($id, $with_status = false) {
  1347. if (empty($id)) {
  1348. return array();
  1349. }
  1350. $id = intval($id);
  1351. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  1352. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  1353. $sql = 'SELECT '.$tbl_user.'.user_id, lastname, firstname, username
  1354. FROM '.$tbl_user.'
  1355. INNER JOIN '.$tbl_session_rel_user.'
  1356. ON '.$tbl_user.'.user_id = '.$tbl_session_rel_user.'.id_user
  1357. AND '.$tbl_session_rel_user.'.id_session = '.$id;
  1358. if ($with_status !== false) {
  1359. $with_status = intval($with_status);
  1360. $sql .= " WHERE relation_type = $with_status ";
  1361. }
  1362. $result = Database::query($sql);
  1363. while ($row = Database::fetch_array($result,'ASSOC')) {
  1364. $return_array[] = $row;
  1365. }
  1366. return $return_array;
  1367. }
  1368. public static function get_sessions_by_coach($user_id) {
  1369. $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
  1370. return Database::select('*', $session_table, array('where'=>array('id_coach = ?'=>$user_id)));
  1371. }
  1372. /*
  1373. public static function get_coaches_by_session($session_id, $course_code) {
  1374. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  1375. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  1376. $sql = "SELECT user.user_id
  1377. FROM $tbl_session_rel_course_rel_user session_rcru, $tbl_user user
  1378. WHERE session_rcru.id_user = user.user_id AND
  1379. session_rcru.id_session = '".intval($session_id)."' AND
  1380. session_rcru.course_code ='".Database::escape_string($course_code)."' AND
  1381. session_rcru.status = 2 ";
  1382. $result = Database::query($sql);
  1383. while ($row = Database::fetch_array($result,'ASSOC')) {
  1384. $return_array[] = $row;
  1385. }
  1386. return $return_array;
  1387. }*/
  1388. /**
  1389. * Gets user status within a session
  1390. * @param $user_id
  1391. * @param $course_code
  1392. * @param $session_id
  1393. * @return unknown_type
  1394. */
  1395. public function get_user_status_in_session($user_id, $course_code, $session_id) {
  1396. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  1397. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  1398. $sql = "SELECT session_rcru.status
  1399. FROM $tbl_session_rel_course_rel_user session_rcru, $tbl_user user
  1400. WHERE session_rcru.id_user = user.user_id AND
  1401. session_rcru.id_session = '".intval($session_id)."' AND
  1402. session_rcru.course_code ='".Database::escape_string($course_code)."' AND
  1403. user.user_id = ".intval($user_id);
  1404. $result = Database::query($sql);
  1405. $status = false;
  1406. if (Database::num_rows($result)) {
  1407. $status = Database::fetch_row($result);
  1408. $status = $status['0'];
  1409. }
  1410. return $status;
  1411. }
  1412. public static function get_session_by_user($coach_id, $user_id) {
  1413. }
  1414. function get_all_sessions_by_promotion($id) {
  1415. $t = Database::get_main_table(TABLE_MAIN_SESSION);
  1416. return Database::select('*', $t, array('where'=>array('promotion_id = ?'=>$id)));
  1417. }
  1418. function suscribe_sessions_to_promotion($promotion_id, $list) {
  1419. $t = Database::get_main_table(TABLE_MAIN_SESSION);
  1420. $params = array();
  1421. $params['promotion_id'] = 0;
  1422. Database::update($t, $params, array('promotion_id = ?'=>$promotion_id));
  1423. $params['promotion_id'] = $promotion_id;
  1424. if (!empty($list)) {
  1425. foreach ($list as $session_id) {
  1426. $session_id= intval($session_id);
  1427. Database::update($t, $params, array('id = ?'=>$session_id));
  1428. }
  1429. }
  1430. }
  1431. /**
  1432. * Updates a session status
  1433. * @param int session id
  1434. * @param int status
  1435. */
  1436. public function set_session_status($session_id, $status) {
  1437. $t = Database::get_main_table(TABLE_MAIN_SESSION);
  1438. $params['visibility'] = $status;
  1439. Database::update($t, $params, array('id = ?'=>$session_id));
  1440. }
  1441. /**
  1442. * Copies a session with the same data to a new session.
  1443. * The new copy is not assigned to the same promotion. @see suscribe_sessions_to_promotions() for that
  1444. * @param int Session ID
  1445. * @param bool Whether to copy the relationship with courses
  1446. * @param bool Whether to copy the relationship with users
  1447. * @param bool New courses will be created
  1448. * @return int The new session ID on success, 0 otherwise
  1449. * @todo make sure the extra session fields are copied too
  1450. */
  1451. /**
  1452. * @param $id
  1453. * @param $copy_courses
  1454. * @param $copy_users
  1455. * @param $create_new_courses
  1456. * @param $set_exercises_lp_invisible
  1457. * @return unknown_type
  1458. */
  1459. public function copy_session($id, $copy_courses = true, $copy_users = true, $create_new_courses = false, $set_exercises_lp_invisible = false) {
  1460. $id = intval($id);
  1461. $s = self::fetch($id);
  1462. $s['year_start'] = substr($s['date_start'],0,4);
  1463. $s['month_start'] = substr($s['date_start'],5,2);
  1464. $s['day_start'] = substr($s['date_start'],8,2);
  1465. $s['year_end'] = substr($s['date_end'],0,4);
  1466. $s['month_end'] = substr($s['date_end'],5,2);
  1467. $s['day_end'] = substr($s['date_end'],8,2);
  1468. $consider_start = true;
  1469. if ($s['year_start'].'-'.$s['month_start'].'-'.$s['day_start'] == '0000-00-00') {
  1470. $consider_start = false;
  1471. }
  1472. $consider_end = true;
  1473. if ($s['year_end'].'-'.$s['month_end'].'-'.$s['day_end'] == '0000-00-00') {
  1474. $consider_end = false;
  1475. }
  1476. $sid = self::create_session($s['name'].' '.get_lang('Copy'),
  1477. $s['year_start'], $s['month_start'], $s['day_start'],
  1478. $s['year_end'],$s['month_end'],$s['day_end'],
  1479. $s['nb_days_acess_before_beginning'],$s['nb_days_acess_after_end'],
  1480. false,(int)$s['id_coach'], $s['session_category_id'],
  1481. (int)$s['visibility'],$consider_start, $consider_end, true);
  1482. if (!is_numeric($sid) || empty($sid)) {
  1483. return false;
  1484. }
  1485. if ($copy_courses) {
  1486. // Register courses from the original session to the new session
  1487. $courses = self::get_course_list_by_session_id($id);
  1488. $short_courses = $new_short_courses = array();
  1489. if (is_array($courses) && count($courses)>0) {
  1490. foreach ($courses as $course) {
  1491. $short_courses[] = $course;
  1492. }
  1493. }
  1494. $courses = null;
  1495. //We will copy the current courses of the session to new courses
  1496. if (!empty($short_courses)) {
  1497. if ($create_new_courses) {
  1498. //Just in case
  1499. if (function_exists('ini_set')) {
  1500. ini_set('memory_limit','256M');
  1501. ini_set('max_execution_time',0);
  1502. }
  1503. $params = array();
  1504. $params['skip_lp_dates'] = true;
  1505. foreach ($short_courses as $course_data) {
  1506. $course_info = CourseManager::copy_course_simple($course_data['title'].' '.get_lang('Copy'), $course_data['course_code'], $id, $sid, $params);
  1507. if ($course_info) {
  1508. //By default new elements are invisible
  1509. if ($set_exercises_lp_invisible) {
  1510. require_once api_get_path(SYS_CODE_PATH).'newscorm/learnpathList.class.php';
  1511. $list = new LearnpathList('', $course_info['code'], $sid);
  1512. $flat_list = $list->get_flat_list();
  1513. if (!empty($flat_list)) {
  1514. foreach($flat_list as $lp_id => $data) {
  1515. api_item_property_update($course_info, TOOL_LEARNPATH, $lp_id, 'invisible', api_get_user_id(), 0 ,0, 0, 0, $sid);
  1516. api_item_property_update($course_info, TOOL_LEARNPATH, $lp_id, 'invisible', api_get_user_id(), 0 ,0, 0, 0);
  1517. }
  1518. }
  1519. $quiz_table = Database::get_course_table(TABLE_QUIZ_TEST);
  1520. $course_id = $course_info['real_id'];
  1521. //@todo check this query
  1522. $sql = "UPDATE $quiz_table SET active = 0 WHERE c_id = $course_id ";
  1523. $result=Database::query($sql);
  1524. }
  1525. $new_short_courses[] = $course_info['code'];
  1526. }
  1527. }
  1528. } else {
  1529. foreach($short_courses as $course_data) {
  1530. $new_short_courses[] = $course_data['code'];
  1531. }
  1532. }
  1533. $short_courses = $new_short_courses;
  1534. $res = self::add_courses_to_session($sid, $short_courses, true);
  1535. $short_courses = null;
  1536. }
  1537. }
  1538. if ($copy_users) {
  1539. // Register users from the original session to the new session
  1540. $users = self::get_users_by_session($id);
  1541. $short_users = array();
  1542. if (is_array($users) && count($users)>0) {
  1543. foreach ($users as $user) {
  1544. $short_users[] = $user['user_id'];
  1545. }
  1546. }
  1547. $users = null;
  1548. //Subscribing in read only mode
  1549. $res = self::suscribe_users_to_session($sid, $short_users, SESSION_VISIBLE_READ_ONLY, true, false);
  1550. $short_users = null;
  1551. }
  1552. return $sid;
  1553. }
  1554. function user_is_general_coach($user_id, $session_id) {
  1555. $session_id = intval($session_id);
  1556. $user_id = intval($user_id);
  1557. $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
  1558. $sql = "SELECT DISTINCT id
  1559. FROM $session_table
  1560. WHERE session.id_coach = '".$user_id."' AND id = '$session_id'";
  1561. $result = Database::query($sql);
  1562. if ($result && Database::num_rows($result)) {
  1563. return true;
  1564. }
  1565. return false;
  1566. }
  1567. }