group.php 18 KB

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  1. <?php // $Id: group.php 20455 2009-05-10 16:31:12Z ivantcholakov $
  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. * Main page for the group module.
  23. * This script displays the general group settings,
  24. * and a list of groups with buttons to view, edit...
  25. *
  26. * @author Thomas Depraetere, Hugues Peeters, Christophe Gesche: initial versions
  27. * @author Bert Vanderkimpen, improved self-unsubscribe for cvs
  28. * @author Patrick Cool, show group comment under the group name
  29. * @author Roan Embrechts, initial self-unsubscribe code, code cleaning, virtual course support
  30. * @author Bart Mollet, code cleaning, use of Display-library, list of courseAdmin-tools, use of GroupManager
  31. * @author Isaac Flores, code cleaning and improvements
  32. * @package dokeos.group
  33. ==============================================================================
  34. */
  35. /*
  36. ==============================================================================
  37. INIT SECTION
  38. ==============================================================================
  39. */
  40. // name of the language file that needs to be included
  41. $language_file = 'group';
  42. include ('../inc/global.inc.php');
  43. $this_section=SECTION_COURSES;
  44. // notice for unauthorized people.
  45. api_protect_course_script(true);
  46. $nameTools = get_lang('GroupManagement');
  47. /*
  48. -----------------------------------------------------------
  49. Libraries
  50. -----------------------------------------------------------
  51. */
  52. require_once (api_get_path(LIBRARY_PATH).'course.lib.php');
  53. require_once (api_get_path(LIBRARY_PATH).'groupmanager.lib.php');
  54. require_once (api_get_path(LIBRARY_PATH).'events.lib.inc.php');
  55. //Create default category if it doesn't exist when group categories aren't allowed
  56. if( api_get_setting('allow_group_categories') == 'false')
  57. {
  58. $cat_table = Database::get_course_table(TABLE_GROUP_CATEGORY);
  59. $sql = "SELECT * FROM $cat_table WHERE id = '".DEFAULT_GROUP_CATEGORY."'";
  60. $res = api_sql_query($sql,__FILE__,__LINE__);
  61. $num = Database::num_rows($res);
  62. if($num == 0)
  63. {
  64. api_sql_query("INSERT INTO ".$cat_table." ( id , title , description , forum_state , wiki_state, max_student , self_reg_allowed , self_unreg_allowed , groups_per_user , display_order ) VALUES ('2', '".lang2db($DefaultGroupCategory)."', '', '1', '1', '8', '0', '0', '0', '0');");
  65. }
  66. }
  67. /*
  68. -----------------------------------------------------------
  69. Header
  70. -----------------------------------------------------------
  71. */
  72. if (!isset ($_GET['origin']) || $_GET['origin'] != 'learnpath')
  73. { //so we are not in learnpath tool
  74. event_access_tool(TOOL_GROUP);
  75. if (! $is_allowed_in_course) api_not_allowed(true);
  76. }
  77. Display::display_header(get_lang('Groups'));
  78. // Tool introduction
  79. $fck_attribute['Width'] = '100%';
  80. $fck_attribute['Height'] = '300';
  81. $fck_attribute['ToolbarSet'] = 'Introduction';
  82. Display::display_introduction_section(TOOL_GROUP,'left');
  83. $fck_attribute = null; // Clearing this global variable immediatelly after it has been used.
  84. /*
  85. * Self-registration and unregistration
  86. */
  87. $my_group_id = Security::remove_XSS($_GET['group_id']);
  88. $my_msg = Security::remove_XSS($_GET['msg']);
  89. $my_group = $_POST['group'];
  90. $my_get_id1 = Security::remove_XSS($_GET['id1']);
  91. $my_get_id2 = Security::remove_XSS($_GET['id2']);
  92. $my_get_id = Security::remove_XSS($_GET['id']);
  93. if (isset ($_GET['action']))
  94. {
  95. switch ($_GET['action'])
  96. {
  97. case 'self_reg' :
  98. if (GroupManager :: is_self_registration_allowed($_SESSION['_user']['user_id'], $my_group_id))
  99. {
  100. GroupManager :: subscribe_users($_SESSION['_user']['user_id'],$my_group_id);
  101. Display :: display_confirmation_message(get_lang('GroupNowMember'));
  102. }
  103. break;
  104. case 'self_unreg' :
  105. if (GroupManager :: is_self_unregistration_allowed($_SESSION['_user']['user_id'], $my_group_id))
  106. {
  107. GroupManager :: unsubscribe_users($_SESSION['_user']['user_id'],$my_group_id);
  108. Display :: display_confirmation_message(get_lang('StudentDeletesHimself'));
  109. }
  110. break;
  111. case 'show_msg' :
  112. Display :: display_confirmation_message($my_msg);
  113. break;
  114. }
  115. }
  116. /*
  117. * Group-admin functions
  118. */
  119. if (api_is_allowed_to_edit(false,true))
  120. {
  121. // Post-actions
  122. if (isset ($_POST['action']))
  123. {
  124. switch ($_POST['action'])
  125. {
  126. case 'delete_selected' :
  127. if( is_array($_POST['group']))
  128. {
  129. GroupManager :: delete_groups($my_group);
  130. Display :: display_confirmation_message(get_lang('SelectedGroupsDeleted'));
  131. }
  132. break;
  133. case 'empty_selected' :
  134. if( is_array($_POST['group']))
  135. {
  136. GroupManager :: unsubscribe_all_users($my_group);
  137. Display :: display_confirmation_message(get_lang('SelectedGroupsEmptied'));
  138. }
  139. break;
  140. case 'fill_selected' :
  141. if( is_array($_POST['group']))
  142. {
  143. GroupManager :: fill_groups($my_group);
  144. Display :: display_confirmation_message(get_lang('SelectedGroupsFilled'));
  145. }
  146. break;
  147. }
  148. }
  149. // Get-actions
  150. if (isset ($_GET['action']))
  151. {
  152. switch ($_GET['action'])
  153. {
  154. case 'swap_cat_order' :
  155. GroupManager :: swap_category_order($my_get_id1,$my_get_id2);
  156. Display :: display_confirmation_message(get_lang('CategoryOrderChanged'));
  157. break;
  158. case 'delete_one' :
  159. GroupManager :: delete_groups($my_get_id);
  160. Display :: display_confirmation_message(get_lang('GroupDel'));
  161. break;
  162. case 'empty_one' :
  163. GroupManager :: unsubscribe_all_users($my_get_id);
  164. Display :: display_confirmation_message(get_lang('GroupEmptied'));
  165. break;
  166. case 'fill_one' :
  167. GroupManager :: fill_groups($my_get_id);
  168. Display :: display_confirmation_message(get_lang('GroupFilledGroups'));
  169. break;
  170. case 'delete_category' :
  171. GroupManager :: delete_category($my_get_id);
  172. Display :: display_confirmation_message(get_lang('CategoryDeleted'));
  173. break;
  174. }
  175. }
  176. }
  177. echo '<div class="actions">';
  178. if (api_is_allowed_to_edit(false,true))
  179. {
  180. echo Display::return_icon('groupadd.gif', get_lang('NewGroupCreate')) . '<a href="group_creation.php?'.api_get_cidreq().'">'.get_lang('NewGroupCreate').'</a>&nbsp;';
  181. if( Database::count_rows(Database::get_course_table(TABLE_GROUP)) > 0) {
  182. //echo '<a href="group_overview.php?'.api_get_cidreq().'">'.Display::return_icon('group_view.gif').'&nbsp;'.get_lang('GroupOverview').'</a>&nbsp;';
  183. echo Display::return_icon('group.gif', get_lang('GroupOverview')) .'<a href="group_overview.php?'.api_get_cidreq().'">'.get_lang('GroupOverview').'</a>&nbsp;';
  184. }
  185. if (get_setting('allow_group_categories') == 'true') {
  186. echo Display::return_icon('folder_new.gif', get_lang('AddCategory')) . '<a href="group_category.php?'.api_get_cidreq().'&action=add_category">'.get_lang('AddCategory').'</a>&nbsp;';
  187. } else {
  188. //echo '<a href="group_category.php?'.api_get_cidreq().'&id=2">'.Display::return_icon('edit_group.gif').'&nbsp;'.get_lang('PropModify').'</a>&nbsp;';
  189. echo Display::return_icon('settings.gif', get_lang('PropModify')) . '<a href="group_category.php?'.api_get_cidreq().'&id=2">'.get_lang('PropModify').'</a>&nbsp;';
  190. }
  191. //echo Display::return_icon('csv.gif', get_lang('ExportAsCSV')).'<a href="group_overview.php?'.api_get_cidreq().'&action=export&type=csv">'.get_lang('ExportAsCSV').'</a> ';
  192. echo Display::return_icon('excel.gif', get_lang('ExportAsXLS')).' <a href="group_overview.php?'.api_get_cidreq().'&action=export&type=xls">'.get_lang('ExportAsXLS').'</a>';
  193. //echo '<a href="group_creation.php?'.api_get_cidreq().'">'.Display::return_icon('group_add_big.gif').'&nbsp;'.get_lang('NewGroupCreate').'</a>&nbsp;';
  194. }
  195. $group_cats = GroupManager :: get_categories();
  196. if (get_setting('allow_group_categories') == 'true' && count($group_cats) > 1)
  197. {
  198. //echo '<p><a href="?'.api_get_cidreq().'&show_all=1">'.get_lang('ShowAll').'</a></p>';
  199. echo Display::return_icon('group.gif').' <a href="?'.api_get_cidreq().'&show_all=1">'.get_lang('ShowAll').'</a>';
  200. }
  201. echo '</div>';
  202. /*
  203. * List all categories
  204. */
  205. foreach ($group_cats as $index => $category)
  206. {
  207. global $charset;
  208. $group_list = array ();
  209. $in_category = false;
  210. if (get_setting('allow_group_categories') == 'true')
  211. {
  212. if (isset ($_GET['show_all']) || (isset ($_GET['category']) && $_GET['category'] == $category['id']))
  213. {
  214. echo '<img src="../img/shared_folder.gif" alt=""/>';
  215. echo ' <a href="group.php?'.api_get_cidreq().'&origin='.Security::remove_XSS($_GET['origin']).'">'.$category['title'].'</a>';
  216. $in_category = true;
  217. }
  218. else
  219. {
  220. echo '<img src="../img/folder_document.gif" alt=""/>';
  221. echo ' <a href="group.php?'.api_get_cidreq().'&origin='.$_GET['origin'].'&amp;category='.$category['id'].'">'.$category['title'].'</a>';
  222. }
  223. $group_list = GroupManager :: get_group_list($category['id']);
  224. echo ' ('.count($group_list).' '.get_lang('ExistingGroups').')';
  225. if (api_is_allowed_to_edit(false,true))
  226. {
  227. echo '<a href="group_category.php?'.api_get_cidreq().'&id='.$category['id'].'" title="'.get_lang('Edit').'"><img src="../img/edit.gif" alt="'.get_lang('Edit').'"/></a> ';
  228. echo '<a href="group.php?'.api_get_cidreq().'&action=delete_category&amp;id='.$category['id'].'" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang('ConfirmYourChoice'), ENT_QUOTES, $charset))."'".')) return false;" title="'.get_lang('Delete').'"><img src="../img/delete.gif" alt="'.get_lang('Delete').'"/></a> ';
  229. if ($index != 0)
  230. {
  231. echo ' <a href="group.php?'.api_get_cidreq().'&action=swap_cat_order&amp;id1='.$category['id'].'&amp;id2='.$group_cats[$index -1]['id'].'"><img src="../img/up.gif" alt=""/></a>';
  232. }
  233. if ($index != count($group_cats) - 1)
  234. {
  235. echo ' <a href="group.php?'.api_get_cidreq().'&action=swap_cat_order&amp;id1='.$category['id'].'&amp;id2='.$group_cats[$index +1]['id'].'"><img src="../img/down.gif" alt=""/></a>';
  236. }
  237. }
  238. echo '<p style="margin: 0px;margin-left: 50px;">'.$category['description'].'</p><p/>';
  239. }
  240. else
  241. {
  242. $group_list = GroupManager :: get_group_list();
  243. $in_category = true;
  244. }
  245. //if (count($group_list) > 0 && $in_category)
  246. if ($in_category)
  247. {
  248. $totalRegistered = 0;
  249. // Determine wether current user is tutor for this course
  250. $user_is_tutor = GroupManager :: is_tutor($_user['user_id']);
  251. $group_data = array ();
  252. foreach ($group_list as $index => $this_group)
  253. {
  254. // all the tutors of this group
  255. $tutorsids_of_group=GroupManager::get_subscribed_tutors($this_group['id'],true);
  256. // create a new table-row
  257. $row = array ();
  258. // checkbox
  259. if (api_is_allowed_to_edit(false,true) && count($group_list) > 1)
  260. {
  261. $row[] = $this_group['id'];
  262. }
  263. // group name
  264. if ((api_is_allowed_to_edit(false,true) ||
  265. in_array($_user['user_id'],$tutorsids_of_group) ||
  266. $this_group['is_member'] ||
  267. GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_FORUM) ||
  268. GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_DOCUMENTS) ||
  269. GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_CALENDAR) ||
  270. GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_ANNOUNCEMENT) ||
  271. GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_WORK) ||
  272. GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_WIKI))
  273. && !(api_is_course_coach() && intval($this_group['session_id'])!=intval($_SESSION['id_session'])))
  274. {
  275. isset($origin)?$orig=$origin:$orig=null;
  276. $group_name = '<a href="group_space.php?'.api_get_cidreq().'&amp;origin='.$orig.'&amp;gidReq='.$this_group['id'].'">'.stripslashes($this_group['name']).'</a>';
  277. if (!empty($_SESSION['_user']['user_id']) && !empty($this_group['id_tutor']) && $_SESSION['_user']['user_id'] == $this_group['id_tutor'])
  278. {
  279. $group_name .= ' ('.get_lang('OneMyGroups').')';
  280. }
  281. elseif ($this_group['is_member'])
  282. {
  283. $group_name .= ' ('.get_lang('MyGroup').')';
  284. }
  285. if(api_is_allowed_to_edit() && !empty($this_group['session_name']))
  286. {
  287. $group_name .= ' ('.$this_group['session_name'].')';
  288. }
  289. $row[] = $group_name.'<br/>'.stripslashes(trim($this_group['description']));
  290. }
  291. else
  292. {
  293. $row[] = $this_group['name'].'<br/>'.stripslashes(trim($this_group['description']));
  294. }
  295. // self-registration / unregistration
  296. if (!api_is_allowed_to_edit(false,true))
  297. {
  298. if (GroupManager :: is_self_registration_allowed($_user['user_id'], $this_group['id']))
  299. {
  300. $row[] = '<a href="group.php?'.api_get_cidreq().'&category='.$category['id'].'&amp;action=self_reg&amp;group_id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang('ConfirmYourChoice'), ENT_QUOTES, $charset))."'".')) return false;">'.get_lang('GroupSelfRegInf').'</a>';
  301. }
  302. elseif (GroupManager :: is_self_unregistration_allowed($_user['user_id'], $this_group['id']))
  303. {
  304. $row[] = '<a href="group.php?'.api_get_cidreq().'&category='.$category['id'].'&amp;action=self_unreg&amp;group_id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang('ConfirmYourChoice'), ENT_QUOTES, $charset))."'".')) return false;">'.get_lang('GroupSelfUnRegInf').'</a>';
  305. }
  306. else
  307. {
  308. $row[] = '-';
  309. }
  310. }
  311. // number of members in group
  312. $row[] = $this_group['number_of_members'];
  313. // max number of members in group
  314. $row[] = ($this_group['maximum_number_of_members'] == MEMBER_PER_GROUP_NO_LIMIT ? '-' : $this_group['maximum_number_of_members']);
  315. // tutor name
  316. $tutor_info = '';
  317. if(count($tutorsids_of_group)>0)
  318. {
  319. foreach($tutorsids_of_group as $tutor_id){
  320. $tutor = api_get_user_info($tutor_id);
  321. if (api_get_setting("show_email_addresses") == "true")
  322. {
  323. $tutor_info .= Display::encrypted_mailto_link($tutor['mail'],$tutor['firstName'].' '.$tutor['lastName']).', ';
  324. }
  325. else
  326. {
  327. if (api_is_allowed_to_edit()=='true')
  328. {
  329. $tutor_info .= Display::encrypted_mailto_link($tutor['mail'],$tutor['firstName'].' '.$tutor['lastName']).', ';
  330. }
  331. else
  332. {
  333. $tutor_info .= $tutor['firstName'].' '.$tutor['lastName'].', ';
  334. }
  335. }
  336. }
  337. }
  338. $tutor_info = api_substr($tutor_info,0,api_strlen($tutor_info)-2);
  339. $row[] = $tutor_info;
  340. // edit-links
  341. if (api_is_allowed_to_edit(false,true) && !(api_is_course_coach() && intval($this_group['session_id'])!=intval($_SESSION['id_session'])))
  342. {
  343. $edit_actions = '<a href="group_edit.php?'.api_get_cidreq().'&gidReq='.$this_group['id'].'" title="'.get_lang('Edit').'"><img src="../img/edit.gif" alt="'.get_lang('Edit').'"/></a>&nbsp;';
  344. $edit_actions .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&category='.$category['id'].'&amp;action=delete_one&amp;id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang('ConfirmYourChoice'), ENT_QUOTES, $charset))."'".')) return false;" title="'.get_lang('Delete').'"><img src="../img/delete.gif" alt="'.get_lang('Delete').'"/></a>&nbsp;';
  345. $edit_actions .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&category='.$category['id'].'&amp;action=empty_one&amp;id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang('ConfirmYourChoice'), ENT_QUOTES, $charset))."'".')) return false;" title="'.get_lang('EmptyGroup').'"><img src="../img/clean_group.gif" alt="'.get_lang('EmptyGroup').'"/></a>&nbsp;';
  346. $edit_actions .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&category='.$category['id'].'&amp;action=fill_one&amp;id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang('ConfirmYourChoice'), ENT_QUOTES, $charset))."'".')) return false;" title="'.get_lang('FillGroup').'"><img src="../img/fill_group.gif" alt="'.get_lang('FillGroup').'"/></a>';
  347. $row[] = $edit_actions;
  348. }
  349. if (!empty($this_group['nbMember'])) {
  350. $totalRegistered = $totalRegistered + $this_group['nbMember'];
  351. }
  352. $group_data[] = $row;
  353. } // while loop
  354. if (isset ($_GET['show_all']))
  355. {
  356. $paging_options = array ('per_page' => count($group_data));
  357. }
  358. else
  359. {
  360. $paging_options = array ();
  361. }
  362. $table = new SortableTableFromArrayConfig($group_data, 1);
  363. isset($_GET['category'])?$my_cat = Security::remove_XSS($_GET['category']): $my_cat = null;
  364. $table->set_additional_parameters(array('category'=>$my_cat));
  365. $column = 0;
  366. if (api_is_allowed_to_edit(false,true) and count($group_list) > 1)
  367. {
  368. $table->set_header($column++,'', false);
  369. }
  370. $table->set_header($column++,get_lang('ExistingGroups'));
  371. if (!api_is_allowed_to_edit(false,true)) // If self-registration allowed
  372. {
  373. $table->set_header($column++,get_lang('GroupSelfRegistration'));
  374. }
  375. $table->set_header($column++,get_lang('Registered'));
  376. $table->set_header($column++,get_lang('Max'));
  377. $table->set_header($column++,get_lang('GroupTutor'));
  378. if (api_is_allowed_to_edit(false,true)) // only for course administrator
  379. {
  380. $table->set_header($column++,get_lang('Modify'), false);
  381. $form_actions = array();
  382. $form_actions['delete_selected'] = get_lang('Delete');
  383. $form_actions['fill_selected'] = get_lang('FillGroup');
  384. $form_actions['empty_selected'] = get_lang('EmptyGroup');
  385. if (count($group_list) > 1)
  386. {
  387. $table->set_form_actions($form_actions,'group');
  388. }
  389. }
  390. $table->display();
  391. }
  392. /*
  393. elseif ($in_category)
  394. {
  395. echo get_lang('NoGroupsAvailable');
  396. }
  397. */
  398. }
  399. /*
  400. ==============================================================================
  401. FOOTER
  402. ==============================================================================
  403. */
  404. if (!isset ($_GET['origin']) || $_GET['origin'] != 'learnpath')
  405. {
  406. Display::display_footer();
  407. }
  408. ?>