user.php 20 KB

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  1. <?php
  2. /*
  3. ==============================================================================
  4. Dokeos - elearning and course management software
  5. Copyright (c) 2004-2008 Dokeos SPRL
  6. Copyright (c) 2003 Ghent University (UGent)
  7. Copyright (c) 2001 Universite catholique de Louvain (UCL)
  8. Copyright (c) various contributors
  9. For a full list of contributors, see "credits.txt".
  10. The full license can be read in "license.txt".
  11. This program is free software; you can redistribute it and/or
  12. modify it under the terms of the GNU General Public License
  13. as published by the Free Software Foundation; either version 2
  14. of the License, or (at your option) any later version.
  15. See the GNU General Public License for more details.
  16. Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
  17. Mail: info@dokeos.com
  18. ==============================================================================
  19. */
  20. /**
  21. ==============================================================================
  22. * This script displays a list of the users of the current course.
  23. * Course admins can change user perimssions, subscribe and unsubscribe users...
  24. *
  25. * EXPERIMENTAL: support for virtual courses
  26. * - show users registered in virtual and real courses;
  27. * - only show the users of a virtual course if the current user;
  28. * is registered in that virtual course.
  29. *
  30. * Exceptions: platform admin and the course admin will see all virtual courses.
  31. * This is a new feature, there may be bugs.
  32. *
  33. * @todo possibility to edit user-course rights and view statistics for users in virtual courses
  34. * @todo convert normal table display to display function (refactor virtual course display function)
  35. * @todo display table functions need support for align and valign (e.g. to center text in cells) (this is now possible)
  36. * @author Roan Embrechts, refactoring + virtual courses support
  37. * @package dokeos.user
  38. ==============================================================================
  39. */
  40. /*
  41. ==============================================================================
  42. INIT SECTION
  43. ==============================================================================
  44. */
  45. // name of the language file that needs to be included
  46. $language_file = array('registration','admin','userInfo');
  47. $use_anonymous = true;
  48. require_once ("../inc/global.inc.php");
  49. $this_section = SECTION_COURSES;
  50. // notice for unauthorized people.
  51. api_protect_course_script(true);
  52. /*
  53. -----------------------------------------------------------
  54. Libraries
  55. -----------------------------------------------------------
  56. */
  57. require_once (api_get_path(LIBRARY_PATH)."debug.lib.inc.php");
  58. require_once (api_get_path(LIBRARY_PATH)."events.lib.inc.php");
  59. require_once (api_get_path(LIBRARY_PATH)."export.lib.inc.php");
  60. require_once (api_get_path(LIBRARY_PATH)."course.lib.php");
  61. require_once (api_get_path(LIBRARY_PATH).'sortabletable.class.php');
  62. require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
  63. require_once (api_get_path(LIBRARY_PATH).'usermanager.lib.php');
  64. require_once (api_get_path(LIBRARY_PATH).'groupmanager.lib.php');
  65. //CHECK KEYS
  66. if( !isset ($_cid))
  67. {
  68. header("location: ".$_configuration['root_web']);
  69. }
  70. /*
  71. -----------------------------------------------------------
  72. Constants and variables
  73. -----------------------------------------------------------
  74. */
  75. $currentCourseID = $_course['sysCode'];
  76. /*--------------------------------------
  77. Unregistering a user section
  78. --------------------------------------
  79. */
  80. if(api_is_allowed_to_edit())
  81. {
  82. if(isset($_POST['action']))
  83. {
  84. switch($_POST['action'])
  85. {
  86. case 'unsubscribe' :
  87. // Make sure we don't unsubscribe current user from the course
  88. if(is_array($_POST['user'])){
  89. $user_ids = array_diff($_POST['user'],array($_user['user_id']));
  90. if(count($user_ids) > 0)
  91. {
  92. CourseManager::unsubscribe_user($user_ids, $_SESSION['_course']['sysCode']);
  93. $message = get_lang('UsersUnsubscribed');
  94. }
  95. }
  96. break;
  97. }
  98. }
  99. }
  100. if(api_is_allowed_to_edit())
  101. {
  102. if( isset ($_GET['action']))
  103. {
  104. switch ($_GET['action'])
  105. {
  106. case 'export' :
  107. $table_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
  108. $session_id=0;
  109. $table_users = Database :: get_main_table(TABLE_MAIN_USER);
  110. $data=array();
  111. $a_users=array();
  112. // users subscribed to the course through a session
  113. if(api_get_setting('use_session_mode')=='true')
  114. {
  115. $session_id = intval($_SESSION['id_session']);
  116. $table_session_course_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  117. $sql_query = "SELECT DISTINCT user.user_id, user.lastname, user.firstname, user.email, user.official_code
  118. FROM $table_session_course_user as session_course_user, $table_users as user
  119. WHERE `course_code` = '$currentCourseID' AND session_course_user.id_user = user.user_id ";
  120. if($session_id!=0)
  121. {
  122. $sql_query .= ' AND id_session = '.$session_id;
  123. }
  124. $sql_query.=' ORDER BY user.lastname';
  125. $rs = api_sql_query($sql_query, __FILE__, __LINE__);
  126. while($user = Database:: fetch_array($rs,'ASSOC'))
  127. {
  128. $data[]=$user;
  129. //$user_infos = Database :: get_user_info_from_id($user['user_id']);
  130. $a_users[$user['user_id']] = $user;
  131. }
  132. }
  133. if($session_id == 0)
  134. {
  135. // users directly subscribed to the course
  136. $table_course_user = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
  137. $sql_query = "SELECT DISTINCT user.user_id, user.lastname, user.firstname, user.email, user.official_code
  138. FROM $table_course_user as course_user, $table_users as user WHERE `course_code` = '$currentCourseID' AND course_user.user_id = user.user_id ORDER BY user.lastname";
  139. $rs = api_sql_query($sql_query, __FILE__, __LINE__);
  140. while($user = Database::fetch_array($rs,'ASSOC'))
  141. {
  142. $data[]=$user;
  143. $a_users[$user['user_id']] = $user;
  144. }
  145. }
  146. switch ($_GET['type'])
  147. {
  148. case 'csv' :
  149. Export::export_table_csv($a_users);
  150. case 'xls' :
  151. Export::export_table_xls($a_users);
  152. }
  153. }
  154. }
  155. } // end if allowed to edit
  156. if(api_is_allowed_to_edit())
  157. {
  158. // Unregister user from course
  159. if($_GET['unregister'])
  160. {
  161. if(isset($_GET['user_id']) && is_numeric($_GET['user_id']) && $_GET['user_id'] != $_user['user_id'])
  162. {
  163. CourseManager::unsubscribe_user($_GET['user_id'],$_SESSION['_course']['sysCode']);
  164. $message = get_lang('UserUnsubscribed');
  165. }
  166. }
  167. } // end if allowed to edit
  168. /*
  169. ==============================================================================
  170. FUNCTIONS
  171. ==============================================================================
  172. */
  173. function display_user_search_form()
  174. {
  175. echo '<form method="get" action="user.php">';
  176. echo get_lang("SearchForUser") . "&nbsp;&nbsp;";
  177. echo '<input type="text" name="keyword" value="'.$_GET['keyword'].'"/>';
  178. echo '<input type="submit" value="'.get_lang('SearchButton').'"/>';
  179. echo '</form>';
  180. }
  181. /**
  182. * This function displays a list if users for each virtual course linked to the current
  183. * real course.
  184. *
  185. * defines globals
  186. *
  187. * @version 1.0
  188. * @author Roan Embrechts
  189. * @todo users from virtual courses always show "-" for the group related output. Edit and statistics columns are disabled * for these users, for now.
  190. */
  191. function show_users_in_virtual_courses()
  192. {
  193. global $_course, $_user, $origin;
  194. $real_course_code = $_course['sysCode'];
  195. $real_course_info = Database::get_course_info($real_course_code);
  196. $user_subscribed_virtual_course_list = CourseManager::get_list_of_virtual_courses_for_specific_user_and_real_course($_user['user_id'], $real_course_code);
  197. $number_of_virtual_courses = count($user_subscribed_virtual_course_list);
  198. $row = 0;
  199. $column_header[$row ++] = "ID";
  200. $column_header[$row ++] = get_lang("FullUserName");
  201. $column_header[$row ++] = get_lang("Role");
  202. $column_header[$row ++] = get_lang("Group");
  203. if( api_is_allowed_to_edit())
  204. {
  205. $column_header[$row ++] = get_lang("Tutor");
  206. }
  207. if( api_is_allowed_to_edit())
  208. {
  209. $column_header[$row ++] = get_lang("CourseManager");
  210. }
  211. //$column_header[$row++] = get_lang("Edit");
  212. //$column_header[$row++] = get_lang("Unreg");
  213. //$column_header[$row++] = get_lang("Tracking");
  214. if( !is_array($user_subscribed_virtual_course_list))
  215. return;
  216. foreach ($user_subscribed_virtual_course_list as $virtual_course)
  217. {
  218. $virtual_course_code = $virtual_course["code"];
  219. $virtual_course_user_list = CourseManager::get_user_list_from_course_code($virtual_course_code);
  220. $message = get_lang("RegisteredInVirtualCourse")." ".$virtual_course["title"]."&nbsp;&nbsp;(".$virtual_course["code"].")";
  221. echo "<br/>";
  222. echo "<h4>".$message."</h4>";
  223. $properties["width"] = "100%";
  224. $properties["cellspacing"] = "1";
  225. Display::display_complex_table_header($properties, $column_header);
  226. foreach ($virtual_course_user_list as $this_user)
  227. {
  228. $user_id = $this_user["user_id"];
  229. $loginname = $this_user["username"];
  230. $lastname = $this_user["lastname"];
  231. $firstname = $this_user["firstname"];
  232. $status = $this_user["status"];
  233. $role = $this_user["role"];
  234. if( $status == "1")
  235. $status = get_lang("CourseManager");
  236. else
  237. $status = " - ";
  238. //if(xxx['tutor'] == '0') $tutor = " - ";
  239. //else $tutor = get_lang("Tutor");
  240. $full_name = $lastname.", ".$firstname;
  241. if( $lastname == "" || $firstname == '')
  242. {
  243. $full_name = $loginname;
  244. }
  245. $user_info_hyperlink = "<a href=\"userInfo.php?".api_get_cidreq()."&origin=".$origin."&uInfo=".$user_id."&virtual_course=".$virtual_course["code"]."\">".$full_name."</a>";
  246. $row = 0;
  247. $table_row[$row ++] = $user_id;
  248. $table_row[$row ++] = $user_info_hyperlink; //Full name
  249. $table_row[$row ++] = $role; //Description
  250. $table_row[$row ++] = " - "; //Group, for the moment groups don't work for students in virtual courses
  251. if( api_is_allowed_to_edit())
  252. {
  253. $table_row[$row ++] = " - "; //Tutor column
  254. $table_row[$row ++] = $status; //Course Manager column
  255. }
  256. Display::display_table_row(null, $table_row, true);
  257. }
  258. Display::display_table_footer();
  259. }
  260. }
  261. if(!$is_allowed_in_course)
  262. {
  263. api_not_allowed(true);
  264. }
  265. /*
  266. -----------------------------------------------------------
  267. Header
  268. -----------------------------------------------------------
  269. */
  270. if( $origin != 'learnpath')
  271. {
  272. if (isset($_GET['keyword']))
  273. {
  274. $interbreadcrumb[] = array ("url" => "user.php", "name" => get_lang("Users"));
  275. $tool_name = get_lang('SearchResults');
  276. }
  277. else
  278. {
  279. $tool_name = get_lang('Users');
  280. }
  281. Display::display_header($tool_name, "User");
  282. }
  283. else
  284. {
  285. ?> <link rel="stylesheet" type="text/css" href="<?php echo api_get_path(WEB_CODE_PATH); ?>css/default.css" /> <?php
  286. }
  287. if( isset($message))
  288. {
  289. Display::display_normal_message($message);
  290. }
  291. /*
  292. ==============================================================================
  293. MAIN CODE
  294. ==============================================================================
  295. */
  296. //statistics
  297. event_access_tool(TOOL_USER);
  298. /*
  299. --------------------------------------
  300. Setting the permissions for this page
  301. --------------------------------------
  302. */
  303. $is_allowed_to_track = ($is_courseAdmin || $is_courseTutor) && $_configuration['tracking_enabled'];
  304. /*
  305. /*
  306. -----------------------------------------------------------
  307. Introduction section
  308. (editable by course admins)
  309. -----------------------------------------------------------
  310. */
  311. Display::display_introduction_section(TOOL_USER, $is_allowed);
  312. if( api_is_allowed_to_edit())
  313. {
  314. echo "<div align=\"right\">";
  315. echo '<a href="user.php?'.api_get_cidreq().'&action=export&amp;type=csv">'.Display::return_icon('excel.gif', get_lang('ExportAsCSV')).'&nbsp;'.get_lang('ExportAsCSV').'</a> | ';
  316. echo '<a href="subscribe_user.php?'.api_get_cidreq().'">'.Display::return_icon('add_user_big.gif',get_lang("SubscribeUserToCourse")).'&nbsp;'.get_lang("SubscribeUserToCourse").'</a> | ';
  317. echo "<a href=\"subscribe_user.php?".api_get_cidreq()."&type=teacher\">".Display::return_icon('add_user_big.gif', get_lang("SubscribeUserToCourseAsTeacher"))."&nbsp;".get_lang("SubscribeUserToCourseAsTeacher")."</a> | ";
  318. echo "<a href=\"../group/group.php?".api_get_cidreq()."\">".Display::return_icon('edit_group.gif', get_lang("GroupUserManagement"))."&nbsp;".get_lang("GroupUserManagement")."</a>";
  319. if(api_get_setting('use_session_mode')=='false')
  320. {
  321. echo ' | <a href="class.php?'.api_get_cidreq().'">'.get_lang('Classes').'</a>';
  322. }
  323. echo "</div>";
  324. }
  325. /*
  326. --------------------------------------
  327. DISPLAY USERS LIST
  328. --------------------------------------
  329. Also shows a "next page" button if there are
  330. more than 50 users.
  331. There's a bug in here somewhere - some users count as more than one if they are in more than one group
  332. --> code for > 50 users should take this into account
  333. (Roan, Feb 2004)
  334. */
  335. if( CourseManager::has_virtual_courses_from_code($course_id, $user_id))
  336. {
  337. $real_course_code = $_course['sysCode'];
  338. $real_course_info = Database::get_course_info($real_course_code);
  339. $message = get_lang("RegisteredInRealCourse")." ".$real_course_info["title"]."&nbsp;&nbsp;(".$real_course_info["official_code"].")";
  340. echo "<h4>".$message."</h4>";
  341. }
  342. /*
  343. ==============================================================================
  344. DISPLAY LIST OF USERS
  345. ==============================================================================
  346. */
  347. /**
  348. * * Get the users to display on the current page.
  349. */
  350. function get_number_of_users()
  351. {
  352. $counter=0;
  353. if(!empty($_SESSION["id_session"])){
  354. $a_course_users = CourseManager :: get_user_list_from_course_code($_SESSION['_course']['id'], true, $_SESSION['id_session']);
  355. }
  356. else{
  357. $a_course_users = CourseManager :: get_user_list_from_course_code($_SESSION['_course']['id'], true);
  358. }
  359. foreach($a_course_users as $user_id=>$o_course_user){
  360. if( (isset ($_GET['keyword']) && search_keyword($o_course_user['firstname'],$o_course_user['lastname'],$o_course_user['username'],$o_course_user['official_code'],$_GET['keyword'])) || !isset($_GET['keyword']) || empty($_GET['keyword'])){
  361. $counter++;
  362. }
  363. }
  364. return $counter;
  365. }
  366. function search_keyword($firstname,$lastname,$username,$official_code,$keyword){
  367. if(strripos($firstname,$keyword)!==false || strripos($lastname,$keyword)!==false || strripos($username,$keyword)!==false || strripos($official_code,$keyword)!==false){
  368. return true;
  369. }
  370. else{
  371. return false;
  372. }
  373. }
  374. function sort_users($a,$b){
  375. $a = trim(strtolower($a[$_SESSION['users_column']]));
  376. $b = trim(strtolower($b[$_SESSION['users_column']]));
  377. if($_SESSION['users_direction'] == 'DESC')
  378. return strcmp($b, $a);
  379. else
  380. return strcmp($a, $b);
  381. }
  382. /**
  383. * Get the users to display on the current page.
  384. */
  385. function get_user_data($from, $number_of_items, $column, $direction)
  386. {
  387. $a_users=array();
  388. if(!empty($_SESSION["id_session"])){
  389. $a_course_users = CourseManager :: get_user_list_from_course_code($_SESSION['_course']['id'], true, $_SESSION['id_session']);
  390. }
  391. else
  392. {
  393. $a_course_users = CourseManager :: get_user_list_from_course_code($_SESSION['_course']['id'], true);
  394. }
  395. foreach($a_course_users as $user_id=>$o_course_user)
  396. {
  397. if( (isset ($_GET['keyword']) && search_keyword($o_course_user['firstname'],$o_course_user['lastname'],$o_course_user['username'],$o_course_user['official_code'],$_GET['keyword'])) || !isset($_GET['keyword']) || empty($_GET['keyword'])){
  398. $groups_name=GroupManager :: get_user_group_name($user_id);
  399. if(api_is_allowed_to_edit())
  400. {
  401. $temp=array();
  402. $temp[] = $user_id;
  403. $temp[] = $o_course_user['firstname'];
  404. $temp[] = $o_course_user['lastname'];
  405. $temp[] = $o_course_user['role'];
  406. $temp[] = implode(', ',$groups_name); //Group
  407. $temp[] = $o_course_user['official_code'];
  408. if(isset($o_course_user['tutor_id']) && $o_course_user['tutor_id']==1)
  409. $temp[] = get_lang('Tutor');
  410. else
  411. $temp[] = '-';
  412. if(isset($o_course_user['status']) && $o_course_user['status']==1)
  413. $temp[] = get_lang('CourseManager');
  414. else
  415. $temp[] = '-';
  416. $temp[] = $user_id;
  417. }
  418. else
  419. {
  420. $temp=array();
  421. $temp[] = $o_course_user['firstname'];
  422. $temp[] = $o_course_user['lastname'];
  423. $temp[] = $o_course_user['role'];
  424. $temp[] = implode(', ',$groups_name);//Group
  425. $temp[] = $o_course_user['official_code'];
  426. $temp[] = $user_id;
  427. }
  428. $a_users[$user_id] = $temp;
  429. }
  430. }
  431. usort($a_users, 'sort_users');
  432. return $a_users;
  433. }
  434. /**
  435. * Build the modify-column of the table
  436. * @param int $user_id The user id
  437. * @return string Some HTML-code
  438. */
  439. function modify_filter($user_id)
  440. {
  441. global $origin,$_user, $_course, $is_allowed_to_track,$charset;
  442. $result="<div style='text-align: center'>";
  443. // info
  444. if(!api_is_anonymous())
  445. {
  446. $result .= '<a href="userInfo.php?'.api_get_cidreq().'&origin='.$origin.'&amp;uInfo='.$user_id.'" title="'.get_lang('Info').'" ><img border="0" alt="'.get_lang('Info').'" src="../img/user_info.gif" /></a>&nbsp;';
  447. }
  448. if($is_allowed_to_track)
  449. {
  450. $result .= '<a href="../mySpace/myStudents.php?'.api_get_cidreq().'&student='.$user_id.'&amp;details=true&amp;course='.$_course['id'].'&amp;origin=user_course" title="'.get_lang('Tracking').'" ><img border="0" alt="'.get_lang('Tracking').'" src="../img/statistics.gif" /></a>&nbsp;';
  451. }
  452. if(api_is_allowed_to_edit())
  453. {
  454. // edit
  455. $result .= '<a href="userInfo.php?'.api_get_cidreq().'&origin='.$origin.'&amp;editMainUserInfo='.$user_id.'" title="'.get_lang('Edit').'" ><img border="0" alt="'.get_lang('Edit').'" src="../img/edit.gif" /></a>&nbsp;';
  456. // unregister
  457. if( $user_id != $_user['user_id'])
  458. {
  459. $result .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&unregister=yes&amp;user_id='.$user_id.'" title="'.get_lang('Unreg').' " onclick="javascript:if(!confirm(\''.addslashes(htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES,$charset)).'\')) return false;"><img border="0" alt="'.get_lang("Unreg").'" src="../img/delete.gif"/></a>';
  460. }
  461. else
  462. {
  463. $result .= '<img border="0" alt="'.get_lang("Unreg").'" src="../img/delete_na.gif"/>';
  464. }
  465. }
  466. $result.="</div>";
  467. return $result;
  468. }
  469. $default_column = api_is_allowed_to_edit() ? 2 : 1;
  470. $table = new SortableTable('users', 'get_number_of_users', 'get_user_data',$default_column);
  471. $parameters['keyword'] = $_GET['keyword'];
  472. $table->set_additional_parameters($parameters);
  473. $header_nr = 0;
  474. if( api_is_allowed_to_edit())
  475. {
  476. $table->set_header($header_nr++, '', false);
  477. }
  478. $table->set_header($header_nr++, get_lang('FirstName'));
  479. $table->set_header($header_nr++, get_lang('LastName'));
  480. $table->set_header($header_nr++, get_lang('Description'));
  481. $table->set_header($header_nr++, get_lang('GroupSingle'),false);
  482. $table->set_header($header_nr++, get_lang('OfficialCode'));
  483. if( api_is_allowed_to_edit())
  484. {
  485. $table->set_header($header_nr++, get_lang('Tutor'));
  486. $table->set_header($header_nr++, get_lang('CourseManager'));
  487. }
  488. //actions column
  489. $table->set_header($header_nr++, '', false);
  490. $table->set_column_filter($header_nr-1,'modify_filter');
  491. if( api_is_allowed_to_edit())
  492. {
  493. $table->set_form_actions(array ('unsubscribe' => get_lang('Unreg')), 'user');
  494. }
  495. // Build search-form
  496. $form = new FormValidator('search_user', 'get','','',null,false);
  497. $renderer = & $form->defaultRenderer();
  498. $renderer->setElementTemplate('<span>{element}</span> ');
  499. $form->add_textfield('keyword', '', false);
  500. $form->addElement('submit', 'submit', get_lang('SearchButton'));
  501. $form->display();
  502. echo '<br />';
  503. $table->display();
  504. if ( !empty($_GET['keyword']) && !empty($_GET['submit']) )
  505. {
  506. $keyword_name=Security::remove_XSS($_GET['keyword']);
  507. echo '<br/>'.get_lang('SearchResultsFor').' <span style="font-style: italic ;"> '.$keyword_name.' </span><br>';
  508. }
  509. if( get_setting('allow_user_headings') == 'true' && $is_courseAdmin && api_is_allowed_to_edit() && $origin != 'learnpath') // only course administrators see this line
  510. {
  511. echo "<div align=\"right\">", "<form method=\"post\" action=\"userInfo.php\">", get_lang("CourseAdministratorOnly"), " : ", "<input type=\"submit\" name=\"viewDefList\" value=\"".get_lang("DefineHeadings")."\" />", "</form>", "</div>\n";
  512. }
  513. //User list of the virtual courses linked to this course.
  514. //show_users_in_virtual_courses($is_allowed_to_track);
  515. /*
  516. ==============================================================================
  517. FOOTER
  518. ==============================================================================
  519. */
  520. if( $origin != 'learnpath')
  521. {
  522. Display::display_footer();
  523. }
  524. ?>