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, 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. // echo $query;
  234. $result = Database::query($query);
  235. $formatted_sessions = array();
  236. if (Database::num_rows($result)) {
  237. $sessions = Database::store_result($result);
  238. foreach ($sessions as $session) {
  239. $session['name'] = Display::url($session['name'], "resume_session.php?id_session=".$session['id']);
  240. $session['coach_name'] = Display::url($session['coach_name'], "user_information.php?user_id=".$session['user_id']);
  241. if ($session['date_start'] == '0000-00-00' && $session['date_end'] == '0000-00-00') {
  242. // $session['session_active'] = 1;
  243. }
  244. if ($session['session_active'] == 1) {
  245. $session['session_active'] = Display::return_icon('accept.png', get_lang('Active'), array(), ICON_SIZE_SMALL);
  246. } else {
  247. $session['session_active'] = Display::return_icon('error.png', get_lang('Inactive'), array(), ICON_SIZE_SMALL);
  248. }
  249. if ($session['date_start'] == '0000-00-00') {
  250. $session['date_start'] = '';
  251. }
  252. if ($session['date_end'] == '0000-00-00') {
  253. $session['date_end'] = '';
  254. }
  255. switch ($session['visibility']) {
  256. case SESSION_VISIBLE_READ_ONLY: //1
  257. $session['visibility'] = get_lang('ReadOnly');
  258. break;
  259. case SESSION_VISIBLE: //2
  260. $session['visibility'] = get_lang('Visible');
  261. break;
  262. case SESSION_INVISIBLE: //3
  263. $session['visibility'] = api_ucfirst(get_lang('Invisible'));
  264. break;
  265. }
  266. $formatted_sessions[] = $session;
  267. }
  268. }
  269. return $formatted_sessions;
  270. }
  271. /**
  272. * Creates a new course code based in given code
  273. *
  274. * @param string wanted code
  275. * <code>
  276. * $wanted_code = 'curse' if there are in the DB codes like curse1 curse2 the function will return: course3
  277. * if the course code doest not exist in the DB the same course code will be returned
  278. * </code>
  279. * @return string wanted unused code
  280. */
  281. function generate_nice_next_session_name($session_name) {
  282. $session_name_ok = !self::session_name_exists($session_name);
  283. if (!$session_name_ok) {
  284. $table = Database::get_main_table(TABLE_MAIN_SESSION);
  285. $session_name = Database::escape_string($session_name);
  286. $sql = "SELECT count(*) as count FROM $table WHERE name LIKE '$session_name%'";
  287. $result = Database::query($sql);
  288. if (Database::num_rows($result) > 0 ) {
  289. $row = Database::fetch_array($result);
  290. $count = $row['count'] + 1;
  291. $session_name = $session_name.'_'.$count;
  292. $result = self::session_name_exists($session_name);
  293. if (!$result) {
  294. return $session_name;
  295. }
  296. }
  297. return false;
  298. }
  299. return $session_name;
  300. }
  301. /**
  302. * Edit a session
  303. * @author Carlos Vargas from existing code
  304. * @param integer id
  305. * @param string name
  306. * @param integer year_start
  307. * @param integer month_start
  308. * @param integer day_start
  309. * @param integer year_end
  310. * @param integer month_end
  311. * @param integer day_end
  312. * @param integer nb_days_acess_before
  313. * @param integer nb_days_acess_after
  314. * @param integer nolimit
  315. * @param integer id_coach
  316. * @param integer id_session_category
  317. * @return $id;
  318. * The parameter id is a primary key
  319. **/
  320. public static function edit_session ($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) {
  321. global $_user;
  322. $name=trim(stripslashes($name));
  323. $year_start=intval($year_start);
  324. $month_start=intval($month_start);
  325. $day_start=intval($day_start);
  326. $year_end=intval($year_end);
  327. $month_end=intval($month_end);
  328. $day_end=intval($day_end);
  329. $id_coach= intval($id_coach);
  330. $nb_days_acess_before= intval($nb_days_acess_before);
  331. $nb_days_acess_after = intval($nb_days_acess_after);
  332. $id_session_category = intval($id_session_category);
  333. $id_visibility = intval($id_visibility);
  334. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  335. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  336. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  337. if (empty($nolimit)) {
  338. $date_start = "$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
  339. $date_end = "$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
  340. } else {
  341. $date_start = "0000-00-00";
  342. $date_end = "0000-00-00";
  343. $id_visibility = 1;//force read only
  344. }
  345. if (!empty($no_end_limit)) {
  346. $date_end = "0000-00-00";
  347. }
  348. if (empty($end_limit)) {
  349. $date_end ="0000-00-00";
  350. $id_visibility = 1;//force read only
  351. }
  352. if (empty($start_limit)) {
  353. $date_start ="0000-00-00";
  354. }
  355. if (empty($name)) {
  356. $msg=get_lang('SessionNameIsRequired');
  357. return $msg;
  358. } elseif (empty($id_coach)) {
  359. $msg=get_lang('CoachIsRequired');
  360. return $msg;
  361. } elseif (!empty($start_limit) && empty($nolimit) && (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start))) {
  362. $msg=get_lang('InvalidStartDate');
  363. return $msg;
  364. } elseif (!empty($end_limit) && empty($nolimit) && (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end))) {
  365. $msg=get_lang('InvalidEndDate');
  366. return $msg;
  367. } elseif (!empty($start_limit) && !empty($end_limit) && empty($nolimit) && $date_start >= $date_end) {
  368. $msg=get_lang('StartDateShouldBeBeforeEndDate');
  369. return $msg;
  370. } else {
  371. $rs = Database::query("SELECT id FROM $tbl_session WHERE name='".Database::escape_string($name)."'");
  372. $exists = false;
  373. while ($row = Database::fetch_array($rs)) {
  374. if($row['id']!=$id)
  375. $exists = true;
  376. }
  377. if ($exists) {
  378. $msg=get_lang('SessionNameAlreadyExists');
  379. return $msg;
  380. } else {
  381. $sql="UPDATE $tbl_session " .
  382. "SET name='".Database::escape_string($name)."',
  383. date_start='".$date_start."',
  384. date_end='".$date_end."',
  385. id_coach='".$id_coach."',
  386. nb_days_access_before_beginning = ".$nb_days_acess_before.",
  387. nb_days_access_after_end = ".$nb_days_acess_after.",
  388. session_category_id = ".$id_session_category." ,
  389. visibility= ".$id_visibility."
  390. WHERE id='$id'";
  391. Database::query($sql);
  392. return $id;
  393. }
  394. }
  395. }
  396. /**
  397. * Delete session
  398. * @author Carlos Vargas from existing code
  399. * @param array id_checked
  400. * @param boolean optional, true if the function is called by a webservice, false otherwise.
  401. * @return void Nothing, or false on error
  402. * The parameters is a array to delete sessions
  403. **/
  404. public static function delete_session ($id_checked,$from_ws = false) {
  405. $tbl_session= Database::get_main_table(TABLE_MAIN_SESSION);
  406. $tbl_session_rel_course= Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  407. $tbl_session_rel_course_rel_user= Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  408. $tbl_session_rel_user= Database::get_main_table(TABLE_MAIN_SESSION_USER);
  409. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  410. $tbl_url_session = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  411. global $_user;
  412. if(is_array($id_checked)) {
  413. $id_checked = Database::escape_string(implode(',',$id_checked));
  414. } else {
  415. $id_checked = intval($id_checked);
  416. }
  417. if (!api_is_platform_admin() && !$from_ws) {
  418. $sql = 'SELECT session_admin_id FROM '.Database :: get_main_table(TABLE_MAIN_SESSION).' WHERE id='.$id_checked;
  419. $rs = Database::query($sql);
  420. if (Database::result($rs,0,0)!=$_user['user_id']) {
  421. api_not_allowed(true);
  422. }
  423. }
  424. Database::query("DELETE FROM $tbl_session WHERE id IN($id_checked)");
  425. Database::query("DELETE FROM $tbl_session_rel_course WHERE id_session IN($id_checked)");
  426. Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session IN($id_checked)");
  427. Database::query("DELETE FROM $tbl_session_rel_user WHERE id_session IN($id_checked)");
  428. Database::query("DELETE FROM $tbl_url_session WHERE session_id IN($id_checked)");
  429. // delete extra session fields
  430. $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  431. $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
  432. // Delete extra fields from session where field variable is "SECCION"
  433. $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' ";
  434. $rs_field = Database::query($sql);
  435. $field_id = 0;
  436. if (Database::num_rows($rs_field) == 1) {
  437. $row_field = Database::fetch_row($rs_field);
  438. $field_id = $row_field[0];
  439. $sql_delete_sfv = "DELETE FROM $t_sfv WHERE session_id = '$id_checked' AND field_id = '$field_id'";
  440. $rs_delete_sfv = Database::query($sql_delete_sfv);
  441. }
  442. $sql = "SELECT * FROM $t_sfv WHERE field_id = '$field_id' ";
  443. $rs_field_id = Database::query($sql);
  444. if (Database::num_rows($rs_field_id) == 0) {
  445. $sql_delete_sf = "DELETE FROM $t_sf WHERE id = '$field_id'";
  446. $rs_delete_sf = Database::query($sql_delete_sf);
  447. }
  448. /*
  449. $sql = "SELECT distinct field_id FROM $t_sfv WHERE session_id = '$id_checked'";
  450. $res_field_ids = @Database::query($sql);
  451. if (Database::num_rows($res_field_ids) > 0) {
  452. while($row_field_id = Database::fetch_row($res_field_ids)){
  453. $field_ids[] = $row_field_id[0];
  454. }
  455. }
  456. //delete from table_session_field_value from a given session id
  457. $sql_session_field_value = "DELETE FROM $t_sfv WHERE session_id = '$id_checked'";
  458. @Database::query($sql_session_field_value);
  459. $sql = "SELECT distinct field_id FROM $t_sfv";
  460. $res_field_all_ids = @Database::query($sql);
  461. if (Database::num_rows($res_field_all_ids) > 0) {
  462. while($row_field_all_id = Database::fetch_row($res_field_all_ids)){
  463. $field_all_ids[] = $row_field_all_id[0];
  464. }
  465. }
  466. if (count($field_ids) > 0 && count($field_all_ids) > 0) {
  467. foreach($field_ids as $field_id) {
  468. // check if field id is used into table field value
  469. if (in_array($field_id,$field_all_ids)) {
  470. continue;
  471. } else {
  472. $sql_session_field = "DELETE FROM $t_sf WHERE id = '$field_id'";
  473. Database::query($sql_session_field);
  474. }
  475. }
  476. }
  477. */
  478. // Add event to system log
  479. $user_id = api_get_user_id();
  480. event_system(LOG_SESSION_DELETE, LOG_SESSION_ID, $id_checked, api_get_utc_datetime(), $user_id);
  481. }
  482. /**
  483. * Subscribes users to the given session and optionally (default) unsubscribes previous users
  484. * @author Carlos Vargas from existing code
  485. * @param integer Session ID
  486. * @param array List of user IDs
  487. * @param bool Whether to unsubscribe existing users (true, default) or not (false)
  488. * @return void Nothing, or false on error
  489. **/
  490. public static function suscribe_users_to_session($id_session, $user_list, $session_visibility = SESSION_VISIBLE_READ_ONLY, $empty_users=true, $send_email=false) {
  491. if ($id_session!= strval(intval($id_session))) return false;
  492. foreach($user_list as $intUser){
  493. if ($intUser!= strval(intval($intUser))) return false;
  494. }
  495. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  496. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  497. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  498. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  499. $session_info = api_get_session_info($id_session);
  500. $session_name = $session_info['name'];
  501. //from function parameter
  502. if (empty($session_visibility)) {
  503. $session_visibility = $session_info['visibility']; //loaded from DB
  504. //default status loaded if empty
  505. if (empty($session_visibility))
  506. $session_visibility = SESSION_VISIBLE_READ_ONLY; // by default readonly 1
  507. } else {
  508. if (!in_array($session_visibility, array(SESSION_VISIBLE_READ_ONLY, SESSION_VISIBLE, SESSION_INVISIBLE))) {
  509. $session_visibility = SESSION_VISIBLE_READ_ONLY;
  510. }
  511. }
  512. $sql = "SELECT id_user FROM $tbl_session_rel_course_rel_user WHERE id_session = '$id_session' ";
  513. $result = Database::query($sql);
  514. $existingUsers = array();
  515. while($row = Database::fetch_array($result)) {
  516. $existingUsers[] = $row['id_user'];
  517. }
  518. $sql = "SELECT course_code FROM $tbl_session_rel_course WHERE id_session = '$id_session'";
  519. $result = Database::query($sql);
  520. $course_list = array();
  521. while($row = Database::fetch_array($result)) {
  522. $course_list[]=$row['course_code'];
  523. }
  524. if ($send_email) {
  525. //global $_configuration;
  526. //sending emails only
  527. if (is_array($user_list) && count($user_list)>0) {
  528. foreach($user_list as $enreg_user) {
  529. if (!in_array($enreg_user,$existingUsers )) {
  530. //send email
  531. $emailbody = '';
  532. $emailheaders = '';
  533. $user_info = UserManager::get_user_info_by_id($enreg_user);
  534. $firstname = $user_info['firstname'];
  535. $lastname = $user_info['lastname'];
  536. $email = $user_info['email'];
  537. $emailto = '"'.$firstname.' '.$lastname.'" <'.$email.'>';
  538. $emailsubject = '['.get_setting('siteName').'] '.get_lang('YourReg').' '.get_setting('siteName');
  539. $emailheaders = 'From: '.get_setting('administratorName').' '.get_setting('administratorSurname').' <'.get_setting('emailAdministrator').">\n";
  540. $emailheaders .= 'Reply-To: '.get_setting('emailAdministrator');
  541. $emailbody = get_lang('Dear')." ".stripslashes(api_get_person_name($firstname, $lastname)).",\n\n".sprintf(get_lang('YouAreRegisterToSessionX'), $session_name) ." \n\n" .get_lang('Address') ." ". get_setting('siteName') ." ". get_lang('Is') ." : ". api_get_path(WEB_PATH) ."\n\n". get_lang('Problem'). "\n\n". get_lang('Formula').",\n\n".get_setting('administratorName')." ".get_setting('administratorSurname')."\n". get_lang('Manager'). " ".get_setting('siteName')."\nT. ".get_setting('administratorTelephone')."\n" .get_lang('Email') ." : ".get_setting('emailAdministrator');
  542. @api_send_mail($emailto, $emailsubject, $emailbody, $emailheaders);
  543. }
  544. }
  545. }
  546. }
  547. foreach ($course_list as $enreg_course) {
  548. // for each course in the session
  549. $nbr_users=0;
  550. $enreg_course = Database::escape_string($enreg_course);
  551. // delete existing users
  552. if ($empty_users) {
  553. foreach ($existingUsers as $existing_user) {
  554. if (!in_array($existing_user, $user_list)) {
  555. $sql = "DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session='$id_session' AND course_code='$enreg_course' AND id_user='$existing_user' ";
  556. Database::query($sql);
  557. if (Database::affected_rows()) {
  558. $nbr_users--;
  559. }
  560. }
  561. }
  562. }
  563. //Replace with this new function
  564. //
  565. // insert new users into session_rel_course_rel_user and ignore if they already exist
  566. foreach ($user_list as $enreg_user) {
  567. if(!in_array($enreg_user, $existingUsers)) {
  568. $enreg_user = Database::escape_string($enreg_user);
  569. $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','$session_visibility')";
  570. Database::query($insert_sql);
  571. if(Database::affected_rows()) {
  572. $nbr_users++;
  573. }
  574. }
  575. }
  576. // count users in this session-course relation
  577. $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";
  578. $rs = Database::query($sql);
  579. list($nbr_users) = Database::fetch_array($rs);
  580. // update the session-course relation to add the users total
  581. $update_sql = "UPDATE $tbl_session_rel_course SET nbr_users=$nbr_users WHERE id_session='$id_session' AND course_code='$enreg_course'";
  582. Database::query($update_sql);
  583. }
  584. // Delete users from the session
  585. if ($empty_users===true) {
  586. Database::query("DELETE FROM $tbl_session_rel_user WHERE id_session = $id_session AND relation_type<>".SESSION_RELATION_TYPE_RRHH."");
  587. }
  588. // Insert missing users into session
  589. $nbr_users = 0;
  590. foreach ($user_list as $enreg_user) {
  591. $enreg_user = Database::escape_string($enreg_user);
  592. $nbr_users++;
  593. $insert_sql = "INSERT IGNORE INTO $tbl_session_rel_user (id_session, id_user) VALUES ('$id_session','$enreg_user')";
  594. Database::query($insert_sql);
  595. }
  596. // update number of users in the session
  597. $nbr_users = count($user_list);
  598. if ($empty_users) {
  599. // update number of users in the session
  600. $update_sql = "UPDATE $tbl_session SET nbr_users= $nbr_users WHERE id='$id_session' ";
  601. Database::query($update_sql);
  602. } else {
  603. $update_sql = "UPDATE $tbl_session SET nbr_users= nbr_users + $nbr_users WHERE id='$id_session' ";
  604. Database::query($update_sql);
  605. }
  606. }
  607. function subscribe_users_to_session_course($user_list, $session_id, $course_code, $session_visibility = SESSION_VISIBLE_READ_ONLY ) {
  608. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  609. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  610. if (empty($user_list) || empty($session_id) || empty($course_code)) {
  611. return false;
  612. }
  613. $session_id = intval($session_id);
  614. $course_code = Database::escape_string($course_code);
  615. $session_visibility = intval($session_visibility);
  616. $nbr_users = 0;
  617. foreach ($user_list as $enreg_user) {
  618. //if (!in_array($enreg_user, $existingUsers)) {
  619. $enreg_user = intval($enreg_user);
  620. $insert_sql = "INSERT IGNORE INTO $tbl_session_rel_course_rel_user(id_session,course_code,id_user,visibility)
  621. VALUES ('$session_id','$course_code','$enreg_user','$session_visibility')";
  622. Database::query($insert_sql);
  623. if (Database::affected_rows()) {
  624. $nbr_users++;
  625. }
  626. //}
  627. }
  628. // count users in this session-course relation
  629. $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";
  630. $rs = Database::query($sql);
  631. list($nbr_users) = Database::fetch_array($rs);
  632. // update the session-course relation to add the users total
  633. $update_sql = "UPDATE $tbl_session_rel_course SET nbr_users=$nbr_users WHERE id_session='$id_session' AND course_code='$enreg_course'";
  634. Database::query($update_sql);
  635. }
  636. /**
  637. * Unsubscribe user from session
  638. *
  639. * @param int Session id
  640. * @param int User id
  641. * @return bool True in case of success, false in case of error
  642. */
  643. public static function unsubscribe_user_from_session($session_id, $user_id) {
  644. $session_id = (int)$session_id;
  645. $user_id = (int)$user_id;
  646. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  647. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  648. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  649. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  650. $delete_sql = "DELETE FROM $tbl_session_rel_user WHERE id_session = '$session_id' AND id_user ='$user_id' AND relation_type<>".SESSION_RELATION_TYPE_RRHH."";
  651. Database::query($delete_sql);
  652. $return = Database::affected_rows();
  653. // Update number of users
  654. $update_sql = "UPDATE $tbl_session SET nbr_users= nbr_users - $return WHERE id='$session_id' ";
  655. Database::query($update_sql);
  656. // Get the list of courses related to this session
  657. $course_list = SessionManager::get_course_list_by_session_id($session_id);
  658. if(!empty($course_list)) {
  659. foreach($course_list as $course) {
  660. $course_code = $course['code'];
  661. // Delete user from course
  662. 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'");
  663. if(Database::affected_rows()) {
  664. // Update number of users in this relation
  665. Database::query("UPDATE $tbl_session_rel_course SET nbr_users=nbr_users - 1 WHERE id_session='$session_id' AND course_code='$course_code'");
  666. }
  667. }
  668. }
  669. return true;
  670. }
  671. /** Subscribes courses to the given session and optionally (default) unsubscribes previous users
  672. * @author Carlos Vargas from existing code
  673. * @param int Session ID
  674. * @param array List of courses IDs
  675. * @param bool Whether to unsubscribe existing users (true, default) or not (false)
  676. * @return void Nothing, or false on error
  677. **/
  678. public static function add_courses_to_session ($id_session, $course_list, $empty_courses=true) {
  679. // security checks
  680. if ($id_session!= strval(intval($id_session))) { return false; }
  681. //foreach($course_list as $intCourse){
  682. // if ($intCourse!= strval(intval($intCourse))) { return false; }
  683. //}
  684. // initialisation
  685. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  686. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  687. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  688. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  689. $tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
  690. // get general coach ID
  691. $id_coach = Database::query("SELECT id_coach FROM $tbl_session WHERE id=$id_session");
  692. $id_coach = Database::fetch_array($id_coach);
  693. $id_coach = $id_coach[0];
  694. // get list of courses subscribed to this session
  695. $rs = Database::query("SELECT course_code FROM $tbl_session_rel_course WHERE id_session=$id_session");
  696. $existingCourses = Database::store_result($rs);
  697. $nbr_courses=count($existingCourses);
  698. // get list of users subscribed to this session
  699. $sql="SELECT id_user
  700. FROM $tbl_session_rel_user
  701. WHERE id_session = $id_session AND relation_type<>".SESSION_RELATION_TYPE_RRHH."";
  702. $result=Database::query($sql);
  703. $user_list=Database::store_result($result);
  704. // remove existing courses from the session
  705. if ($empty_courses===true) {
  706. foreach ($existingCourses as $existingCourse) {
  707. if (!in_array($existingCourse['course_code'], $course_list)){
  708. Database::query("DELETE FROM $tbl_session_rel_course WHERE course_code='".$existingCourse['course_code']."' AND id_session=$id_session");
  709. Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE course_code='".$existingCourse['course_code']."' AND id_session=$id_session");
  710. }
  711. }
  712. $nbr_courses=0;
  713. }
  714. // Pass through the courses list we want to add to the session
  715. foreach ($course_list as $enreg_course) {
  716. $enreg_course = Database::escape_string($enreg_course);
  717. $exists = false;
  718. // check if the course we want to add is already subscribed
  719. foreach ($existingCourses as $existingCourse) {
  720. if ($enreg_course == $existingCourse['course_code']) {
  721. $exists=true;
  722. }
  723. }
  724. if (!$exists) {
  725. //if the course isn't subscribed yet
  726. $sql_insert_rel_course= "INSERT INTO $tbl_session_rel_course (id_session,course_code) VALUES ('$id_session','$enreg_course')";
  727. Database::query($sql_insert_rel_course);
  728. //We add the current course in the existing courses array, to avoid adding another time the current course
  729. $existingCourses[]=array('course_code'=>$enreg_course);
  730. $nbr_courses++;
  731. // subscribe all the users from the session to this course inside the session
  732. $nbr_users=0;
  733. foreach ($user_list as $enreg_user) {
  734. $enreg_user_id = Database::escape_string($enreg_user['id_user']);
  735. $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')";
  736. Database::query($sql_insert);
  737. if (Database::affected_rows()) {
  738. $nbr_users++;
  739. }
  740. }
  741. Database::query("UPDATE $tbl_session_rel_course SET nbr_users=$nbr_users WHERE id_session='$id_session' AND course_code='$enreg_course'");
  742. }
  743. }
  744. Database::query("UPDATE $tbl_session SET nbr_courses=$nbr_courses WHERE id='$id_session'");
  745. }
  746. /**
  747. * Unsubscribe course from a session
  748. *
  749. * @param int Session id
  750. * @param int Course id
  751. * @return bool True in case of success, false otherwise
  752. */
  753. public static function unsubscribe_course_from_session($session_id, $course_id) {
  754. $session_id = (int)$session_id;
  755. $course_id = (int)$course_id;
  756. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  757. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  758. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  759. // Get course code
  760. $course_code = CourseManager::get_course_code_from_course_id($course_id);
  761. if($course_code == 0) {
  762. return false;
  763. }
  764. // Unsubscribe course
  765. Database::query("DELETE FROM $tbl_session_rel_course WHERE course_code='$course_code' AND id_session='$session_id'");
  766. $nb_affected = Database::affected_rows();
  767. Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE course_code='$course_code' AND id_session='$session_id'");
  768. if($nb_affected > 0) {
  769. // Update number of courses in the session
  770. Database::query("UPDATE $tbl_session SET nbr_courses= nbr_courses + $nb_affected WHERE id='$session_id' ");
  771. return true;
  772. } else {
  773. return false;
  774. }
  775. }
  776. /**
  777. * Creates a new extra field for a given session
  778. * @param string Field's internal variable name
  779. * @param int Field's type
  780. * @param string Field's language var name
  781. * @return int new extra field id
  782. */
  783. public static function create_session_extra_field ($fieldvarname, $fieldtype, $fieldtitle) {
  784. // database table definition
  785. $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  786. $fieldvarname = Database::escape_string($fieldvarname);
  787. $fieldtitle = Database::escape_string($fieldtitle);
  788. $fieldtype = (int)$fieldtype;
  789. $time = time();
  790. $sql_field = "SELECT id FROM $t_sf WHERE field_variable = '$fieldvarname'";
  791. $res_field = Database::query($sql_field);
  792. $r_field = Database::fetch_row($res_field);
  793. if (Database::num_rows($res_field)>0) {
  794. $field_id = $r_field[0];
  795. } else {
  796. // save new fieldlabel into course_field table
  797. $sql = "SELECT MAX(field_order) FROM $t_sf";
  798. $res = Database::query($sql);
  799. $order = 0;
  800. if (Database::num_rows($res)>0) {
  801. $row = Database::fetch_row($res);
  802. $order = $row[0]+1;
  803. }
  804. $sql = "INSERT INTO $t_sf
  805. SET field_type = '$fieldtype',
  806. field_variable = '$fieldvarname',
  807. field_display_text = '$fieldtitle',
  808. field_order = '$order',
  809. tms = FROM_UNIXTIME($time)";
  810. $result = Database::query($sql);
  811. $field_id=Database::insert_id();
  812. }
  813. return $field_id;
  814. }
  815. /**
  816. * Update an extra field value for a given session
  817. * @param integer Course ID
  818. * @param string Field variable name
  819. * @param string Field value
  820. * @return boolean true if field updated, false otherwise
  821. */
  822. public static function update_session_extra_field_value ($session_id,$fname,$fvalue='') {
  823. $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  824. $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
  825. $fname = Database::escape_string($fname);
  826. $session_id = (int)$session_id;
  827. $fvalues = '';
  828. if(is_array($fvalue))
  829. {
  830. foreach($fvalue as $val)
  831. {
  832. $fvalues .= Database::escape_string($val).';';
  833. }
  834. if(!empty($fvalues))
  835. {
  836. $fvalues = substr($fvalues,0,-1);
  837. }
  838. }
  839. else
  840. {
  841. $fvalues = Database::escape_string($fvalue);
  842. }
  843. $sqlsf = "SELECT * FROM $t_sf WHERE field_variable='$fname'";
  844. $ressf = Database::query($sqlsf);
  845. if(Database::num_rows($ressf)==1)
  846. { //ok, the field exists
  847. // Check if enumerated field, if the option is available
  848. $rowsf = Database::fetch_array($ressf);
  849. $tms = time();
  850. $sqlsfv = "SELECT * FROM $t_sfv WHERE session_id = '$session_id' AND field_id = '".$rowsf['id']."' ORDER BY id";
  851. $ressfv = Database::query($sqlsfv);
  852. $n = Database::num_rows($ressfv);
  853. if ($n>1) {
  854. //problem, we already have to values for this field and user combination - keep last one
  855. while($rowsfv = Database::fetch_array($ressfv))
  856. {
  857. if($n > 1)
  858. {
  859. $sqld = "DELETE FROM $t_sfv WHERE id = ".$rowsfv['id'];
  860. $resd = Database::query($sqld);
  861. $n--;
  862. }
  863. $rowsfv = Database::fetch_array($ressfv);
  864. if($rowsfv['field_value'] != $fvalues)
  865. {
  866. $sqlu = "UPDATE $t_sfv SET field_value = '$fvalues', tms = FROM_UNIXTIME($tms) WHERE id = ".$rowsfv['id'];
  867. $resu = Database::query($sqlu);
  868. return($resu?true:false);
  869. }
  870. return true;
  871. }
  872. } else if ($n==1) {
  873. //we need to update the current record
  874. $rowsfv = Database::fetch_array($ressfv);
  875. if($rowsfv['field_value'] != $fvalues)
  876. {
  877. $sqlu = "UPDATE $t_sfv SET field_value = '$fvalues', tms = FROM_UNIXTIME($tms) WHERE id = ".$rowsfv['id'];
  878. //error_log('UM::update_extra_field_value: '.$sqlu);
  879. $resu = Database::query($sqlu);
  880. return($resu?true:false);
  881. }
  882. return true;
  883. } else {
  884. $sqli = "INSERT INTO $t_sfv (session_id,field_id,field_value,tms) " .
  885. "VALUES ('$session_id',".$rowsf['id'].",'$fvalues',FROM_UNIXTIME($tms))";
  886. //error_log('UM::update_extra_field_value: '.$sqli);
  887. $resi = Database::query($sqli);
  888. return($resi?true:false);
  889. }
  890. } else {
  891. return false; //field not found
  892. }
  893. }
  894. /**
  895. * Checks the relationship between a session and a course.
  896. * @param int $session_id
  897. * @param int $course_id
  898. * @return bool Returns TRUE if the session and the course are related, FALSE otherwise.
  899. * */
  900. public static function relation_session_course_exist ($session_id, $course_id) {
  901. $tbl_session_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  902. $return_value = false;
  903. $sql= "SELECT course_code FROM $tbl_session_course WHERE id_session = ".Database::escape_string($session_id)." AND course_code = '".Database::escape_string($course_id)."'";
  904. $result = Database::query($sql);
  905. $num = Database::num_rows($result);
  906. if ($num>0) {
  907. $return_value = true;
  908. }
  909. return $return_value;
  910. }
  911. /**
  912. * Get the session information by name
  913. * @param string session name
  914. * @return mixed false if the session does not exist, array if the session exist
  915. * */
  916. public static function get_session_by_name ($session_name) {
  917. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  918. $sql = 'SELECT id, id_coach, date_start, date_end FROM '.$tbl_session.' WHERE name="'.Database::escape_string($session_name).'"';
  919. $result = Database::query($sql);
  920. $num = Database::num_rows($result);
  921. if ($num>0){
  922. return Database::fetch_array($result);
  923. } else {
  924. return false;
  925. }
  926. }
  927. /**
  928. * Create a session category
  929. * @author Jhon Hinojosa <jhon.hinojosa@dokeos.com>, from existing code
  930. * @param string name
  931. * @param integer year_start
  932. * @param integer month_start
  933. * @param integer day_start
  934. * @param integer year_end
  935. * @param integer month_end
  936. * @param integer day_end
  937. * @return $id_session;
  938. **/
  939. public static function create_category_session($sname,$syear_start,$smonth_start,$sday_start,$syear_end,$smonth_end, $sday_end){
  940. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  941. $name= trim($sname);
  942. $year_start= intval($syear_start);
  943. $month_start=intval($smonth_start);
  944. $day_start=intval($sday_start);
  945. $year_end=intval($syear_end);
  946. $month_end=intval($smonth_end);
  947. $day_end=intval($sday_end);
  948. $date_start = "$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
  949. $date_end = "$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
  950. if (empty($name)) {
  951. $msg=get_lang('SessionCategoryNameIsRequired');
  952. return $msg;
  953. } elseif (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start)) {
  954. $msg=get_lang('InvalidStartDate');
  955. return $msg;
  956. } elseif (!$month_end && !$day_end && !$year_end) {
  957. $date_end = "null";
  958. } elseif (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end)) {
  959. $msg=get_lang('InvalidEndDate');
  960. return $msg;
  961. } elseif($date_start >= $date_end) {
  962. $msg=get_lang('StartDateShouldBeBeforeEndDate');
  963. return $msg;
  964. }
  965. $access_url_id = api_get_current_access_url_id();
  966. $sql = "INSERT INTO $tbl_session_category (name, date_start, date_end, access_url_id)
  967. VALUES('".Database::escape_string($name)."','$date_start','$date_end', '$access_url_id')";
  968. Database::query($sql);
  969. $id_session = Database::insert_id();
  970. // Add event to system log
  971. $user_id = api_get_user_id();
  972. event_system(LOG_SESSION_CATEGORY_CREATE, LOG_SESSION_CATEGORY_ID, $id_session, api_get_utc_datetime(), $user_id);
  973. return $id_session;
  974. }
  975. /**
  976. * Edit a sessions categories
  977. * @author Jhon Hinojosa <jhon.hinojosa@dokeos.com>,from existing code
  978. * @param integer id
  979. * @param string name
  980. * @param integer year_start
  981. * @param integer month_start
  982. * @param integer day_start
  983. * @param integer year_end
  984. * @param integer month_end
  985. * @param integer day_end
  986. * @return $id;
  987. * The parameter id is a primary key
  988. **/
  989. public static function edit_category_session($id, $sname,$syear_start,$smonth_start,$sday_start,$syear_end,$smonth_end, $sday_end){
  990. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  991. $name= trim($sname);
  992. $year_start= intval($syear_start);
  993. $month_start=intval($smonth_start);
  994. $day_start=intval($sday_start);
  995. $year_end=intval($syear_end);
  996. $month_end=intval($smonth_end);
  997. $day_end=intval($sday_end);
  998. $id=intval($id);
  999. $date_start = "$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
  1000. $date_end = "$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
  1001. if (empty($name)) {
  1002. $msg=get_lang('SessionCategoryNameIsRequired');
  1003. return $msg;
  1004. } elseif (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start)) {
  1005. $msg=get_lang('InvalidStartDate');
  1006. return $msg;
  1007. } elseif (!$month_end && !$day_end && !$year_end) {
  1008. $date_end = null;
  1009. } elseif (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end)) {
  1010. $msg=get_lang('InvalidEndDate');
  1011. return $msg;
  1012. } elseif($date_start >= $date_end) {
  1013. $msg=get_lang('StartDateShouldBeBeforeEndDate');
  1014. return $msg;
  1015. }
  1016. if ( $date_end <> null ) {
  1017. $sql = "UPDATE $tbl_session_category SET name = '".Database::escape_string($name)."', date_start = '$date_start' ".
  1018. ", date_end = '$date_end' WHERE id= '".$id."' ";
  1019. } else {
  1020. $sql = "UPDATE $tbl_session_category SET name = '".Database::escape_string($name)."', date_start = '$date_start' ".
  1021. ", date_end = NULL WHERE id= '".$id."' ";
  1022. }
  1023. $result = Database::query($sql);
  1024. return ($result? true:false);
  1025. }
  1026. /**
  1027. * Delete sessions categories
  1028. * @author Jhon Hinojosa <jhon.hinojosa@dokeos.com>, from existing code
  1029. * @param array id_checked
  1030. * @param bool include delete session
  1031. * @param bool optional, true if the function is called by a webservice, false otherwise.
  1032. * @return void Nothing, or false on error
  1033. * The parameters is a array to delete sessions
  1034. **/
  1035. public static function delete_session_category($id_checked, $delete_session = false,$from_ws = false){
  1036. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  1037. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  1038. if (is_array($id_checked)) {
  1039. $id_checked = Database::escape_string(implode(',',$id_checked));
  1040. } else {
  1041. $id_checked = intval($id_checked);
  1042. }
  1043. //Setting session_category_id to 0
  1044. $sql = "UPDATE $tbl_session SET session_category_id = 0 WHERE session_category_id IN (".$id_checked.")";
  1045. $result = Database::query($sql);
  1046. $sql = "SELECT id FROM $tbl_session WHERE session_category_id IN (".$id_checked.")";
  1047. $result = @Database::query($sql);
  1048. while ($rows = Database::fetch_array($result)) {
  1049. $session_id = $rows['id'];
  1050. if ($delete_session) {
  1051. if ($from_ws) {
  1052. SessionManager::delete_session($session_id,true);
  1053. } else {
  1054. SessionManager::delete_session($session_id);
  1055. }
  1056. }
  1057. }
  1058. $sql = "DELETE FROM $tbl_session_category WHERE id IN (".$id_checked.")";
  1059. $rs = @Database::query($sql);
  1060. $result = Database::affected_rows();
  1061. // Add event to system log
  1062. $user_id = api_get_user_id();
  1063. event_system(LOG_SESSION_CATEGORY_DELETE, LOG_SESSION_CATEGORY_ID, $id_checked, api_get_utc_datetime(), $user_id);
  1064. // delete extra session fields where field variable is "PERIODO"
  1065. $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  1066. $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
  1067. $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' ";
  1068. $rs_field = Database::query($sql);
  1069. $field_id = 0;
  1070. if (Database::num_rows($rs_field) > 0) {
  1071. $row_field = Database::fetch_row($rs_field);
  1072. $field_id = $row_field[0];
  1073. $sql_delete_sfv = "DELETE FROM $t_sfv WHERE session_id = '$id_checked' AND field_id = '$field_id'";
  1074. $rs_delete_sfv = Database::query($sql_delete_sfv);
  1075. }
  1076. $sql = "SELECT * FROM $t_sfv WHERE field_id = '$field_id' ";
  1077. $rs_field_id = Database::query($sql);
  1078. if (Database::num_rows($rs_field_id) == 0) {
  1079. $sql_delete_sf = "DELETE FROM $t_sf WHERE id = '$field_id'";
  1080. $rs_delete_sf = Database::query($sql_delete_sf);
  1081. }
  1082. return true;
  1083. }
  1084. /**
  1085. * Get a list of sessions of which the given conditions match with an = 'cond'
  1086. * @param array $conditions a list of condition (exemple : array('status =' =>STUDENT) or array('s.name LIKE' => "%$needle%")
  1087. * @param array $order_by a list of fields on which sort
  1088. * @return array An array with all sessions of the platform.
  1089. * @todo optional course code parameter, optional sorting parameters...
  1090. */
  1091. public static function get_sessions_list($conditions = array(), $order_by = array()) {
  1092. $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
  1093. $session_category_table = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  1094. $user_table = Database::get_main_table(TABLE_MAIN_USER);
  1095. $table_access_url_rel_session = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  1096. $access_url_id = api_get_current_access_url_id();
  1097. $return_array = array();
  1098. $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
  1099. FROM $session_table s
  1100. INNER JOIN $user_table u ON s.id_coach = u.user_id
  1101. INNER JOIN $table_access_url_rel_session ar ON ar.session_id = s.id
  1102. LEFT JOIN $session_category_table sc ON s.session_category_id = sc.id
  1103. WHERE ar.access_url_id = $access_url_id ";
  1104. if (count($conditions)>0) {
  1105. $sql_query .= ' AND ';
  1106. foreach ($conditions as $field=>$value) {
  1107. $field = Database::escape_string($field);
  1108. $value = Database::escape_string($value);
  1109. $sql_query .= $field." '".$value."'";
  1110. }
  1111. }
  1112. if (count($order_by)>0) {
  1113. $sql_query .= ' ORDER BY '.Database::escape_string(implode(',',$order_by));
  1114. }
  1115. //echo $sql_query;
  1116. $sql_result = Database::query($sql_query);
  1117. if (Database::num_rows($sql_result)>0) {
  1118. while ($result = Database::fetch_array($sql_result)) {
  1119. $return_array[$result['id']] = $result;
  1120. }
  1121. }
  1122. return $return_array;
  1123. }
  1124. /**
  1125. * Get the session category information by id
  1126. * @param string session category ID
  1127. * @return mixed false if the session category does not exist, array if the session category exists
  1128. */
  1129. public static function get_session_category ($id) {
  1130. $id = intval($id);
  1131. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  1132. $sql = "SELECT id, name, date_start, date_end FROM $tbl_session_category WHERE id= $id";
  1133. $result = Database::query($sql);
  1134. $num = Database::num_rows($result);
  1135. if ($num>0){
  1136. return Database::fetch_array($result);
  1137. } else {
  1138. return false;
  1139. }
  1140. }
  1141. /**
  1142. * Get all session categories (filter by access_url_id)
  1143. * @return mixed false if the session category does not exist, array if the session category exists
  1144. */
  1145. public static function get_all_session_category() {
  1146. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  1147. $id = api_get_current_access_url_id();
  1148. $sql = 'SELECT * FROM '.$tbl_session_category.' WHERE access_url_id ="'.$id.'" ORDER BY name ASC';
  1149. $result = Database::query($sql);
  1150. if (Database::num_rows($result) > 0 ){
  1151. $data = Database::store_result($result,'ASSOC');
  1152. return $data;
  1153. } else {
  1154. return false;
  1155. }
  1156. }
  1157. /**
  1158. * Assign a coach to course in session with status = 2
  1159. * @param int - user id
  1160. * @param int - session id
  1161. * @param string - course code
  1162. * @param bool - optional, if is true the user don't be a coach now, otherwise it'll assign a coach
  1163. * @return bool true if there are affected rows, otherwise false
  1164. */
  1165. public static function set_coach_to_course_session($user_id, $session_id = 0, $course_code = '',$nocoach = false) {
  1166. // Definition of variables
  1167. $user_id = intval($user_id);
  1168. if (!empty($session_id)) {
  1169. $session_id = intval($session_id);
  1170. } else {
  1171. $session_id = api_get_session_id();
  1172. }
  1173. if (!empty($course_code)) {
  1174. $course_code = Database::escape_string($course_code);
  1175. } else {
  1176. $course_code = api_get_course_id();
  1177. }
  1178. // definitios of tables
  1179. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  1180. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  1181. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  1182. // check if user is a teacher
  1183. $sql= "SELECT * FROM $tbl_user WHERE status='1' AND user_id = '$user_id'";
  1184. $rs_check_user = Database::query($sql);
  1185. if (Database::num_rows($rs_check_user) > 0) {
  1186. if ($nocoach) {
  1187. // check if user_id exits int session_rel_user
  1188. $sql = "SELECT id_user FROM $tbl_session_rel_user WHERE id_session = '$session_id' AND id_user = '$user_id'";
  1189. $res = Database::query($sql);
  1190. if (Database::num_rows($res) > 0) {
  1191. // The user don't be a coach now
  1192. $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' ";
  1193. $rs_update = Database::query($sql);
  1194. if (Database::affected_rows() > 0) return true;
  1195. else return false;
  1196. } else {
  1197. // The user don't be a coach now
  1198. $sql = "DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session = '$session_id' AND course_code = '$course_code' AND id_user = '$user_id' ";
  1199. $rs_delete = Database::query($sql);
  1200. if (Database::affected_rows() > 0) return true;
  1201. else return false;
  1202. }
  1203. } else {
  1204. // Assign user like a coach to course
  1205. // First check if the user is registered in the course
  1206. $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'";
  1207. $rs_check = Database::query($sql);
  1208. //Then update or insert
  1209. if (Database::num_rows($rs_check) > 0) {
  1210. $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' ";
  1211. $rs_update = Database::query($sql);
  1212. if (Database::affected_rows() > 0) return true;
  1213. else return false;
  1214. } else {
  1215. $sql = " INSERT INTO $tbl_session_rel_course_rel_user(id_session, course_code, id_user, status) VALUES('$session_id', '$course_code', '$user_id', 2)";
  1216. $rs_insert = Database::query($sql);
  1217. if (Database::affected_rows() > 0) return true;
  1218. else return false;
  1219. }
  1220. }
  1221. } else {
  1222. return false;
  1223. }
  1224. }
  1225. /**
  1226. * Subscribes sessions to human resource manager (Dashboard feature)
  1227. * @param int Human Resource Manager id
  1228. * @param array Sessions id
  1229. * @param int Relation type
  1230. **/
  1231. public static function suscribe_sessions_to_hr_manager($hr_manager_id,$sessions_list) {
  1232. global $_configuration;
  1233. // Database Table Definitions
  1234. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  1235. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  1236. $tbl_session_rel_course_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  1237. $tbl_session_rel_access_url = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  1238. $hr_manager_id = intval($hr_manager_id);
  1239. $affected_rows = 0;
  1240. //Deleting assigned sessions to hrm_id
  1241. if ($_configuration['multiple_access_urls']) {
  1242. $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()."";
  1243. } else {
  1244. $sql = "SELECT id_session FROM $tbl_session_rel_user s WHERE id_user = $hr_manager_id AND relation_type=".SESSION_RELATION_TYPE_RRHH."";
  1245. }
  1246. $result = Database::query($sql);
  1247. if (Database::num_rows($result) > 0) {
  1248. while ($row = Database::fetch_array($result)) {
  1249. $sql = "DELETE FROM $tbl_session_rel_user WHERE id_session = {$row['id_session']} AND id_user = $hr_manager_id AND relation_type=".SESSION_RELATION_TYPE_RRHH." ";
  1250. Database::query($sql);
  1251. }
  1252. }
  1253. /*
  1254. //Deleting assigned courses in sessions to hrm_id
  1255. $sql = "SELECT * FROM $tbl_session_rel_course_user WHERE id_user = $hr_manager_id ";
  1256. $result = Database::query($sql);
  1257. if (Database::num_rows($result) > 0) {
  1258. $sql = "DELETE FROM $tbl_session_rel_course_user WHERE id_user = $hr_manager_id ";
  1259. Database::query($sql);
  1260. }
  1261. */
  1262. // inserting new sessions list
  1263. if (is_array($sessions_list)) {
  1264. foreach ($sessions_list as $session_id) {
  1265. $session_id = intval($session_id);
  1266. $insert_sql = "INSERT IGNORE INTO $tbl_session_rel_user(id_session, id_user, relation_type) VALUES($session_id, $hr_manager_id, '".SESSION_RELATION_TYPE_RRHH."')";
  1267. Database::query($insert_sql);
  1268. $affected_rows = Database::affected_rows();
  1269. }
  1270. }
  1271. return $affected_rows;
  1272. }
  1273. /**
  1274. * Get sessions followed by human resources manager
  1275. * @param int Human resources manager or Session admin id
  1276. * @return array sessions
  1277. */
  1278. public static function get_sessions_followed_by_drh($hr_manager_id) {
  1279. global $_configuration;
  1280. // Database Table Definitions
  1281. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  1282. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  1283. $tbl_session_rel_access_url = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  1284. $hr_manager_id = intval($hr_manager_id);
  1285. $assigned_sessions_to_hrm = array();
  1286. if ($_configuration['multiple_access_urls']) {
  1287. $sql = "SELECT * FROM $tbl_session s INNER JOIN $tbl_session_rel_user sru ON (sru.id_session = s.id) LEFT JOIN $tbl_session_rel_access_url a ON (s.id = a.session_id)
  1288. WHERE sru.id_user = '$hr_manager_id' AND sru.relation_type = '".SESSION_RELATION_TYPE_RRHH."' AND access_url_id = ".api_get_current_access_url_id()."";
  1289. } else {
  1290. $sql = "SELECT * FROM $tbl_session s
  1291. 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."' ";
  1292. }
  1293. $rs_assigned_sessions = Database::query($sql);
  1294. if (Database::num_rows($rs_assigned_sessions) > 0) {
  1295. while ($row_assigned_sessions = Database::fetch_array($rs_assigned_sessions)) {
  1296. $assigned_sessions_to_hrm[$row_assigned_sessions['id']] = $row_assigned_sessions;
  1297. }
  1298. }
  1299. return $assigned_sessions_to_hrm;
  1300. }
  1301. /**
  1302. * Gets the list of courses by session filtered by access_url
  1303. * @param int session id
  1304. * @return array list of courses
  1305. */
  1306. public static function get_course_list_by_session_id ($session_id) {
  1307. $tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
  1308. $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  1309. // select the courses
  1310. $sql = "SELECT * FROM $tbl_course c INNER JOIN $tbl_session_rel_course src ON c.code = src.course_code
  1311. WHERE src.id_session = '$session_id' ORDER BY title;";
  1312. $result = Database::query($sql);
  1313. $num_rows = Database::num_rows($result);
  1314. $courses = array();
  1315. if ($num_rows > 0) {
  1316. while ($row = Database::fetch_array($result,'ASSOC')) {
  1317. $courses[$row['id']] = $row;
  1318. }
  1319. }
  1320. return $courses;
  1321. }
  1322. /**
  1323. * Get the session id based on the original id and field name in the extra fields. Returns 0 if session was not found
  1324. *
  1325. * @param string Original session id
  1326. * @param string Original field name
  1327. * @return int Session id
  1328. */
  1329. public static function get_session_id_from_original_id($original_session_id_value, $original_session_id_name) {
  1330. $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
  1331. $table_field = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
  1332. $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'";
  1333. $res_session = Database::query($sql_session);
  1334. $row = Database::fetch_object($res_session);
  1335. if ($row) {
  1336. return $row->session_id;
  1337. } else {
  1338. return 0;
  1339. }
  1340. }
  1341. /**
  1342. * Get users by session
  1343. * @param int sesssion id
  1344. * @param int filter by status
  1345. * @return array a list with an user list
  1346. */
  1347. public static function get_users_by_session($id, $with_status = false) {
  1348. if (empty($id)) {
  1349. return array();
  1350. }
  1351. $id = intval($id);
  1352. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  1353. $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
  1354. $sql = 'SELECT '.$tbl_user.'.user_id, lastname, firstname, username
  1355. FROM '.$tbl_user.'
  1356. INNER JOIN '.$tbl_session_rel_user.'
  1357. ON '.$tbl_user.'.user_id = '.$tbl_session_rel_user.'.id_user
  1358. AND '.$tbl_session_rel_user.'.id_session = '.$id;
  1359. if ($with_status !== false) {
  1360. $with_status = intval($with_status);
  1361. $sql .= " WHERE relation_type = $with_status ";
  1362. }
  1363. $result = Database::query($sql);
  1364. while ($row = Database::fetch_array($result,'ASSOC')) {
  1365. $return_array[] = $row;
  1366. }
  1367. return $return_array;
  1368. }
  1369. public static function get_sessions_by_coach($user_id) {
  1370. $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
  1371. return Database::select('*', $session_table, array('where'=>array('id_coach = ?'=>$user_id)));
  1372. }
  1373. /*
  1374. public static function get_coaches_by_session($session_id, $course_code) {
  1375. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  1376. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  1377. $sql = "SELECT user.user_id
  1378. FROM $tbl_session_rel_course_rel_user session_rcru, $tbl_user user
  1379. WHERE session_rcru.id_user = user.user_id AND
  1380. session_rcru.id_session = '".intval($session_id)."' AND
  1381. session_rcru.course_code ='".Database::escape_string($course_code)."' AND
  1382. session_rcru.status = 2 ";
  1383. $result = Database::query($sql);
  1384. while ($row = Database::fetch_array($result,'ASSOC')) {
  1385. $return_array[] = $row;
  1386. }
  1387. return $return_array;
  1388. }*/
  1389. /**
  1390. * Gets user status within a session
  1391. * @param $user_id
  1392. * @param $course_code
  1393. * @param $session_id
  1394. * @return unknown_type
  1395. */
  1396. public function get_user_status_in_session($user_id, $course_code, $session_id) {
  1397. $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  1398. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  1399. $sql = "SELECT session_rcru.status
  1400. FROM $tbl_session_rel_course_rel_user session_rcru, $tbl_user user
  1401. WHERE session_rcru.id_user = user.user_id AND
  1402. session_rcru.id_session = '".intval($session_id)."' AND
  1403. session_rcru.course_code ='".Database::escape_string($course_code)."' AND
  1404. user.user_id = ".intval($user_id);
  1405. $result = Database::query($sql);
  1406. $status = false;
  1407. if (Database::num_rows($result)) {
  1408. $status = Database::fetch_row($result);
  1409. $status = $status['0'];
  1410. }
  1411. return $status;
  1412. }
  1413. public static function get_session_by_user($coach_id, $user_id) {
  1414. }
  1415. function get_all_sessions_by_promotion($id) {
  1416. $t = Database::get_main_table(TABLE_MAIN_SESSION);
  1417. return Database::select('*', $t, array('where'=>array('promotion_id = ?'=>$id)));
  1418. }
  1419. function suscribe_sessions_to_promotion($promotion_id, $list) {
  1420. $t = Database::get_main_table(TABLE_MAIN_SESSION);
  1421. $params = array();
  1422. $params['promotion_id'] = 0;
  1423. Database::update($t, $params, array('promotion_id = ?'=>$promotion_id));
  1424. $params['promotion_id'] = $promotion_id;
  1425. if (!empty($list)) {
  1426. foreach ($list as $session_id) {
  1427. $session_id= intval($session_id);
  1428. Database::update($t, $params, array('id = ?'=>$session_id));
  1429. }
  1430. }
  1431. }
  1432. /**
  1433. * Updates a session status
  1434. * @param int session id
  1435. * @param int status
  1436. */
  1437. public function set_session_status($session_id, $status) {
  1438. $t = Database::get_main_table(TABLE_MAIN_SESSION);
  1439. $params['visibility'] = $status;
  1440. Database::update($t, $params, array('id = ?'=>$session_id));
  1441. }
  1442. /**
  1443. * Copies a session with the same data to a new session.
  1444. * The new copy is not assigned to the same promotion. @see suscribe_sessions_to_promotions() for that
  1445. * @param int Session ID
  1446. * @param bool Whether to copy the relationship with courses
  1447. * @param bool Whether to copy the relationship with users
  1448. * @param bool New courses will be created
  1449. * @return int The new session ID on success, 0 otherwise
  1450. * @todo make sure the extra session fields are copied too
  1451. */
  1452. /**
  1453. * @param $id
  1454. * @param $copy_courses
  1455. * @param $copy_users
  1456. * @param $create_new_courses
  1457. * @param $set_exercises_lp_invisible
  1458. * @return unknown_type
  1459. */
  1460. public function copy_session($id, $copy_courses = true, $copy_users = true, $create_new_courses = false, $set_exercises_lp_invisible = false) {
  1461. $id = intval($id);
  1462. $s = self::fetch($id);
  1463. $s['year_start'] = substr($s['date_start'],0,4);
  1464. $s['month_start'] = substr($s['date_start'],5,2);
  1465. $s['day_start'] = substr($s['date_start'],8,2);
  1466. $s['year_end'] = substr($s['date_end'],0,4);
  1467. $s['month_end'] = substr($s['date_end'],5,2);
  1468. $s['day_end'] = substr($s['date_end'],8,2);
  1469. $consider_start = true;
  1470. if ($s['year_start'].'-'.$s['month_start'].'-'.$s['day_start'] == '0000-00-00') {
  1471. $consider_start = false;
  1472. }
  1473. $consider_end = true;
  1474. if ($s['year_end'].'-'.$s['month_end'].'-'.$s['day_end'] == '0000-00-00') {
  1475. $consider_end = false;
  1476. }
  1477. $sid = self::create_session($s['name'].' '.get_lang('Copy'),
  1478. $s['year_start'], $s['month_start'], $s['day_start'],
  1479. $s['year_end'],$s['month_end'],$s['day_end'],
  1480. $s['nb_days_acess_before_beginning'],$s['nb_days_acess_after_end'],
  1481. false,(int)$s['id_coach'], $s['session_category_id'],
  1482. (int)$s['visibility'],$consider_start, $consider_end, true);
  1483. if (!is_numeric($sid) || empty($sid)) {
  1484. return false;
  1485. }
  1486. if ($copy_courses) {
  1487. // Register courses from the original session to the new session
  1488. $courses = self::get_course_list_by_session_id($id);
  1489. $short_courses = $new_short_courses = array();
  1490. if (is_array($courses) && count($courses)>0) {
  1491. foreach ($courses as $course) {
  1492. $short_courses[] = $course;
  1493. }
  1494. }
  1495. $courses = null;
  1496. //We will copy the current courses of the session to new courses
  1497. if (!empty($short_courses)) {
  1498. if ($create_new_courses) {
  1499. //Just in case
  1500. if (function_exists('ini_set')) {
  1501. ini_set('memory_limit','256M');
  1502. ini_set('max_execution_time',0);
  1503. }
  1504. $params = array();
  1505. $params['skip_lp_dates'] = true;
  1506. foreach ($short_courses as $course_data) {
  1507. $course_info = CourseManager::copy_course_simple($course_data['title'].' '.get_lang('Copy'), $course_data['course_code'], $id, $sid, $params);
  1508. if ($course_info) {
  1509. //By default new elements are invisible
  1510. if ($set_exercises_lp_invisible) {
  1511. require_once api_get_path(SYS_CODE_PATH).'newscorm/learnpathList.class.php';
  1512. $list = new LearnpathList('', $course_info['code'], $sid);
  1513. $flat_list = $list->get_flat_list();
  1514. if (!empty($flat_list)) {
  1515. foreach($flat_list as $lp_id => $data) {
  1516. api_item_property_update($course_info, TOOL_LEARNPATH, $lp_id, 'invisible', api_get_user_id(), 0 ,0, 0, 0, $sid);
  1517. api_item_property_update($course_info, TOOL_LEARNPATH, $lp_id, 'invisible', api_get_user_id(), 0 ,0, 0, 0);
  1518. }
  1519. }
  1520. $quiz_table = Database::get_course_table(TABLE_QUIZ_TEST);
  1521. $course_id = $course_info['real_id'];
  1522. //@todo check this query
  1523. $sql = "UPDATE $quiz_table SET active = 0 WHERE c_id = $course_id ";
  1524. $result=Database::query($sql);
  1525. }
  1526. $new_short_courses[] = $course_info['code'];
  1527. }
  1528. }
  1529. } else {
  1530. foreach($short_courses as $course_data) {
  1531. $new_short_courses[] = $course_data['code'];
  1532. }
  1533. }
  1534. $short_courses = $new_short_courses;
  1535. $res = self::add_courses_to_session($sid, $short_courses, true);
  1536. $short_courses = null;
  1537. }
  1538. }
  1539. if ($copy_users) {
  1540. // Register users from the original session to the new session
  1541. $users = self::get_users_by_session($id);
  1542. $short_users = array();
  1543. if (is_array($users) && count($users)>0) {
  1544. foreach ($users as $user) {
  1545. $short_users[] = $user['user_id'];
  1546. }
  1547. }
  1548. $users = null;
  1549. //Subscribing in read only mode
  1550. $res = self::suscribe_users_to_session($sid, $short_users, SESSION_VISIBLE_READ_ONLY, true, false);
  1551. $short_users = null;
  1552. }
  1553. return $sid;
  1554. }
  1555. function user_is_general_coach($user_id, $session_id) {
  1556. $session_id = intval($session_id);
  1557. $user_id = intval($user_id);
  1558. $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
  1559. $sql = "SELECT DISTINCT id
  1560. FROM $session_table
  1561. WHERE session.id_coach = '".$user_id."' AND id = '$session_id'";
  1562. $result = Database::query($sql);
  1563. if ($result && Database::num_rows($result)) {
  1564. return true;
  1565. }
  1566. return false;
  1567. }
  1568. }