group.php 17 KB

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  1. <?php // $Id: group.php 18113 2009-02-01 11:25:38Z 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. * @package dokeos.group
  32. ==============================================================================
  33. */
  34. /*
  35. ==============================================================================
  36. INIT SECTION
  37. ==============================================================================
  38. */
  39. // name of the language file that needs to be included
  40. $language_file = 'group';
  41. include ('../inc/global.inc.php');
  42. $this_section=SECTION_COURSES;
  43. // notice for unauthorized people.
  44. api_protect_course_script(true);
  45. $nameTools = get_lang('GroupManagement');
  46. /*
  47. -----------------------------------------------------------
  48. Libraries
  49. -----------------------------------------------------------
  50. */
  51. require_once (api_get_path(LIBRARY_PATH).'course.lib.php');
  52. require_once (api_get_path(LIBRARY_PATH).'groupmanager.lib.php');
  53. require_once (api_get_path(LIBRARY_PATH).'events.lib.inc.php');
  54. //Create default category if it doesn't exist when group categories aren't allowed
  55. if( api_get_setting('allow_group_categories') == 'false')
  56. {
  57. $cat_table = Database::get_course_table(TABLE_GROUP_CATEGORY);
  58. $sql = "SELECT * FROM $cat_table WHERE id = '".DEFAULT_GROUP_CATEGORY."'";
  59. $res = api_sql_query($sql,__FILE__,__LINE__);
  60. $num = Database::num_rows($res);
  61. if($num == 0)
  62. {
  63. api_sql_query("INSERT INTO ".$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($DefaultGroupCategory)."', '', '1', '1', '8', '0', '0', '0', '0');");
  64. }
  65. }
  66. /*
  67. -----------------------------------------------------------
  68. Header
  69. -----------------------------------------------------------
  70. */
  71. if (!isset ($_GET['origin']) || $_GET['origin'] != 'learnpath')
  72. { //so we are not in learnpath tool
  73. event_access_tool(TOOL_GROUP);
  74. if (! $is_allowed_in_course) api_not_allowed(true);
  75. }
  76. Display::display_header(get_lang('Groups'));
  77. // introduction section
  78. $fck_attribute['Width'] = '100%';
  79. $fck_attribute['Height'] = '400';
  80. $fck_attribute['ToolbarSet'] = 'Full';
  81. Display::display_introduction_section(TOOL_GROUP,'left');
  82. $fck_attribute = null; // Clearing this global variable immediatelly after it has been used.
  83. /*
  84. * Self-registration and unregistration
  85. */
  86. if (isset ($_GET['action']))
  87. {
  88. switch ($_GET['action'])
  89. {
  90. case 'self_reg' :
  91. if (GroupManager :: is_self_registration_allowed($_SESSION['_user']['user_id'], $_GET['group_id']))
  92. {
  93. GroupManager :: subscribe_users($_SESSION['_user']['user_id'], $_GET['group_id']);
  94. Display :: display_normal_message(get_lang('GroupNowMember'));
  95. }
  96. break;
  97. case 'self_unreg' :
  98. if (GroupManager :: is_self_unregistration_allowed($_SESSION['_user']['user_id'], $_GET['group_id']))
  99. {
  100. GroupManager :: unsubscribe_users($_SESSION['_user']['user_id'], $_GET['group_id']);
  101. Display :: display_normal_message(get_lang('StudentDeletesHimself'));
  102. }
  103. break;
  104. case 'show_msg' :
  105. Display :: display_normal_message($_GET['msg']);
  106. break;
  107. }
  108. }
  109. /*
  110. * Group-admin functions
  111. */
  112. if (api_is_allowed_to_edit(false,true))
  113. {
  114. // Post-actions
  115. if (isset ($_POST['action']))
  116. {
  117. switch ($_POST['action'])
  118. {
  119. case 'delete_selected' :
  120. if( is_array($_POST['group']))
  121. {
  122. GroupManager :: delete_groups($_POST['group']);
  123. Display :: display_normal_message(get_lang('SelectedGroupsDeleted'));
  124. }
  125. break;
  126. case 'empty_selected' :
  127. if( is_array($_POST['group']))
  128. {
  129. GroupManager :: unsubscribe_all_users($_POST['group']);
  130. Display :: display_normal_message(get_lang('SelectedGroupsEmptied'));
  131. }
  132. break;
  133. case 'fill_selected' :
  134. if( is_array($_POST['group']))
  135. {
  136. GroupManager :: fill_groups($_POST['group']);
  137. Display :: display_normal_message(get_lang('SelectedGroupsFilled'));
  138. }
  139. break;
  140. }
  141. }
  142. // Get-actions
  143. if (isset ($_GET['action']))
  144. {
  145. switch ($_GET['action'])
  146. {
  147. case 'swap_cat_order' :
  148. GroupManager :: swap_category_order($_GET['id1'], $_GET['id2']);
  149. Display :: display_normal_message(get_lang('CategoryOrderChanged'));
  150. break;
  151. case 'delete_one' :
  152. GroupManager :: delete_groups($_GET['id']);
  153. Display :: display_normal_message(get_lang('GroupDel'));
  154. break;
  155. case 'empty_one' :
  156. GroupManager :: unsubscribe_all_users($_GET['id']);
  157. Display :: display_normal_message(get_lang('GroupEmptied'));
  158. break;
  159. case 'fill_one' :
  160. GroupManager :: fill_groups($_GET['id']);
  161. Display :: display_normal_message(get_lang('GroupFilledGroups'));
  162. break;
  163. case 'delete_category' :
  164. GroupManager :: delete_category($_GET['id']);
  165. Display :: display_normal_message(get_lang('CategoryDeleted'));
  166. break;
  167. }
  168. }
  169. }
  170. echo '<div class="actions">';
  171. if (api_is_allowed_to_edit(false,true))
  172. {
  173. echo Display::return_icon('group_add.gif', get_lang('NewGroupCreate')) . '<a href="group_creation.php?'.api_get_cidreq().'">'.get_lang('NewGroupCreate').'</a>&nbsp;';
  174. if( Database::count_rows(Database::get_course_table(TABLE_GROUP)) > 0) {
  175. //echo '<a href="group_overview.php?'.api_get_cidreq().'">'.Display::return_icon('group_view.gif').'&nbsp;'.get_lang('GroupOverview').'</a>&nbsp;';
  176. echo Display::return_icon('group.gif', get_lang('GroupOverview')) .'<a href="group_overview.php?'.api_get_cidreq().'">'.get_lang('GroupOverview').'</a>&nbsp;';
  177. }
  178. if (get_setting('allow_group_categories') == 'true') {
  179. 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;';
  180. } else {
  181. //echo '<a href="group_category.php?'.api_get_cidreq().'&id=2">'.Display::return_icon('edit_group.gif').'&nbsp;'.get_lang('PropModify').'</a>&nbsp;';
  182. echo Display::return_icon('settings.gif', get_lang('PropModify')) . '<a href="group_category.php?'.api_get_cidreq().'&id=2">'.get_lang('PropModify').'</a>&nbsp;';
  183. }
  184. //echo '<a href="group_creation.php?'.api_get_cidreq().'">'.Display::return_icon('group_add_big.gif').'&nbsp;'.get_lang('NewGroupCreate').'</a>&nbsp;';
  185. }
  186. $group_cats = GroupManager :: get_categories();
  187. if (get_setting('allow_group_categories') == 'true' && count($group_cats) > 1)
  188. {
  189. //echo '<p><a href="?'.api_get_cidreq().'&show_all=1">'.get_lang('ShowAll').'</a></p>';
  190. echo '<a href="?'.api_get_cidreq().'&show_all=1">'.get_lang('ShowAll').'</a>';
  191. }
  192. echo '</div>';
  193. /*
  194. * List all categories
  195. */
  196. foreach ($group_cats as $index => $category)
  197. {
  198. $group_list = array ();
  199. $in_category = false;
  200. if (get_setting('allow_group_categories') == 'true')
  201. {
  202. if (isset ($_GET['show_all']) || (isset ($_GET['category']) && $_GET['category'] == $category['id']))
  203. {
  204. echo '<img src="../img/opendir.gif" alt=""/>';
  205. echo ' <a href="group.php?'.api_get_cidreq().'&origin='.$_GET['origin'].'">'.$category['title'].'</a>';
  206. $in_category = true;
  207. }
  208. else
  209. {
  210. echo '<img src="../img/file.gif" alt=""/>';
  211. echo ' <a href="group.php?'.api_get_cidreq().'&origin='.$_GET['origin'].'&amp;category='.$category['id'].'">'.$category['title'].'</a>';
  212. }
  213. $group_list = GroupManager :: get_group_list($category['id']);
  214. echo ' ('.count($group_list).' '.get_lang('ExistingGroups').')';
  215. if (api_is_allowed_to_edit(false,true))
  216. {
  217. echo '<a href="group_category.php?'.api_get_cidreq().'&id='.$category['id'].'" title="'.get_lang('Edit').'"><img src="../img/edit.gif" alt="'.get_lang('Edit').'"/></a> ';
  218. echo '<a href="group.php?'.api_get_cidreq().'&action=delete_category&amp;id='.$category['id'].'" onclick="javascript:if(!confirm('."'".addslashes(htmlentities(get_lang('ConfirmYourChoice')))."'".')) return false;" title="'.get_lang('Delete').'"><img src="../img/delete.gif" alt="'.get_lang('Delete').'"/></a> ';
  219. if ($index != 0)
  220. {
  221. echo ' <a href="group.php?'.api_get_cidreq().'&action=swap_cat_order&amp;id1='.$category['id'].'&amp;id2='.$group_cats[$index -1]['id'].'"><img src="../img/up.gif" alt=""/></a>';
  222. }
  223. if ($index != count($group_cats) - 1)
  224. {
  225. echo ' <a href="group.php?'.api_get_cidreq().'&action=swap_cat_order&amp;id1='.$category['id'].'&amp;id2='.$group_cats[$index +1]['id'].'"><img src="../img/down.gif" alt=""/></a>';
  226. }
  227. }
  228. echo '<p style="margin: 0px;margin-left: 50px;">'.$category['description'].'</p><p/>';
  229. }
  230. else
  231. {
  232. $group_list = GroupManager :: get_group_list();
  233. $in_category = true;
  234. }
  235. //if (count($group_list) > 0 && $in_category)
  236. if ($in_category)
  237. {
  238. $totalRegistered = 0;
  239. // Determine wether current user is tutor for this course
  240. $user_is_tutor = GroupManager :: is_tutor($_user['user_id']);
  241. $group_data = array ();
  242. foreach ($group_list as $index => $this_group)
  243. {
  244. // all the tutors of this group
  245. $tutorsids_of_group=GroupManager::get_subscribed_tutors($this_group['id'],true);
  246. // create a new table-row
  247. $row = array ();
  248. // checkbox
  249. if (api_is_allowed_to_edit(false,true) && count($group_list) > 1)
  250. {
  251. $row[] = $this_group['id'];
  252. }
  253. // group name
  254. if ((api_is_allowed_to_edit(false,true) ||
  255. in_array($_user['user_id'],$tutorsids_of_group) ||
  256. $this_group['is_member'] ||
  257. GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_FORUM) ||
  258. GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_DOCUMENTS) ||
  259. GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_CALENDAR) ||
  260. GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_ANNOUNCEMENT) ||
  261. GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_WORK) ||
  262. GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_WIKI))
  263. && !(api_is_course_coach() && intval($this_group['session_id'])!=intval($_SESSION['id_session'])))
  264. {
  265. isset($origin)?$orig=$origin:$orig=null;
  266. $group_name = '<a href="group_space.php?'.api_get_cidreq().'&amp;origin='.$orig.'&amp;gidReq='.$this_group['id'].'">'.stripslashes($this_group['name']).'</a>';
  267. if (!empty($_SESSION['_user']['user_id']) && !empty($this_group['id_tutor']) && $_SESSION['_user']['user_id'] == $this_group['id_tutor'])
  268. {
  269. $group_name .= ' ('.get_lang('OneMyGroups').')';
  270. }
  271. elseif ($this_group['is_member'])
  272. {
  273. $group_name .= ' ('.get_lang('MyGroup').')';
  274. }
  275. if(api_is_allowed_to_edit() && !empty($this_group['session_name']))
  276. {
  277. $group_name .= ' ('.$this_group['session_name'].')';
  278. }
  279. $row[] = $group_name.'<br/>'.stripslashes(trim($this_group['description']));
  280. }
  281. else
  282. {
  283. $row[] = $this_group['name'].'<br/>'.stripslashes(trim($this_group['description']));
  284. }
  285. // self-registration / unregistration
  286. if (!api_is_allowed_to_edit(false,true))
  287. {
  288. if (GroupManager :: is_self_registration_allowed($_user['user_id'], $this_group['id']))
  289. {
  290. $row[] = '<a href="group.php?'.api_get_cidreq().'&category='.$category['id'].'&amp;action=self_reg&amp;group_id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(htmlentities(get_lang('ConfirmYourChoice')))."'".')) return false;">'.get_lang('GroupSelfRegInf').'</a>';
  291. }
  292. elseif (GroupManager :: is_self_unregistration_allowed($_user['user_id'], $this_group['id']))
  293. {
  294. $row[] = '<a href="group.php?'.api_get_cidreq().'&category='.$category['id'].'&amp;action=self_unreg&amp;group_id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(htmlentities(get_lang('ConfirmYourChoice')))."'".')) return false;">'.get_lang('GroupSelfUnRegInf').'</a>';
  295. }
  296. else
  297. {
  298. $row[] = '-';
  299. }
  300. }
  301. // number of members in group
  302. $row[] = $this_group['number_of_members'];
  303. // max number of members in group
  304. $row[] = ($this_group['maximum_number_of_members'] == MEMBER_PER_GROUP_NO_LIMIT ? '-' : $this_group['maximum_number_of_members']);
  305. // tutor name
  306. $tutor_info = '';
  307. if(count($tutorsids_of_group)>0)
  308. {
  309. foreach($tutorsids_of_group as $tutor_id){
  310. $tutor = api_get_user_info($tutor_id);
  311. if (api_get_setting("show_email_addresses") == "true")
  312. {
  313. $tutor_info .= Display::encrypted_mailto_link($tutor['mail'],$tutor['firstName'].' '.$tutor['lastName']).', ';
  314. }
  315. else
  316. {
  317. if (api_is_allowed_to_edit()=='true')
  318. {
  319. $tutor_info .= Display::encrypted_mailto_link($tutor['mail'],$tutor['firstName'].' '.$tutor['lastName']).', ';
  320. }
  321. else
  322. {
  323. $tutor_info .= $tutor['firstName'].' '.$tutor['lastName'].', ';
  324. }
  325. }
  326. }
  327. }
  328. $tutor_info = substr($tutor_info,0,strlen($tutor_info)-2);
  329. $row[] = $tutor_info;
  330. // edit-links
  331. if (api_is_allowed_to_edit(false,true) && !(api_is_course_coach() && intval($this_group['session_id'])!=intval($_SESSION['id_session'])))
  332. {
  333. $edit_actions = '<a href="group_edit.php?'.api_get_cidreq().'&gidReq='.$this_group['id'].'" title="'.get_lang('Edit').'"><img src="../img/edit.gif" alt="'.get_lang('Edit').'"/></a>&nbsp;';
  334. $edit_actions .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&category='.$category['id'].'&amp;action=delete_one&amp;id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(htmlentities(get_lang('ConfirmYourChoice')))."'".')) return false;" title="'.get_lang('Delete').'"><img src="../img/delete.gif" alt="'.get_lang('Delete').'"/></a>&nbsp;';
  335. $edit_actions .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&category='.$category['id'].'&amp;action=empty_one&amp;id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(htmlentities(get_lang('ConfirmYourChoice')))."'".')) return false;" title="'.get_lang('EmptyGroup').'"><img src="../img/group_delete.gif" alt="'.get_lang('EmptyGroup').'"/></a>&nbsp;';
  336. $edit_actions .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&category='.$category['id'].'&amp;action=fill_one&amp;id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(htmlentities(get_lang('ConfirmYourChoice')))."'".')) return false;" title="'.get_lang('FillGroup').'"><img src="../img/add_user.gif" alt="'.get_lang('FillGroup').'"/></a>';
  337. $row[] = $edit_actions;
  338. }
  339. if (!empty($this_group['nbMember'])) {
  340. $totalRegistered = $totalRegistered + $this_group['nbMember'];
  341. }
  342. $group_data[] = $row;
  343. } // while loop
  344. if (isset ($_GET['show_all']))
  345. {
  346. $paging_options = array ('per_page' => count($group_data));
  347. }
  348. else
  349. {
  350. $paging_options = array ();
  351. }
  352. $table = new SortableTableFromArrayConfig($group_data, 1);
  353. isset($_GET['category'])?$my_cat = $_GET['category']: $my_cat = null;
  354. $table->set_additional_parameters(array('category'=>$my_cat));
  355. $column = 0;
  356. if (api_is_allowed_to_edit(false,true) and count($group_list) > 1)
  357. {
  358. $table->set_header($column++,'', false);
  359. }
  360. $table->set_header($column++,get_lang('ExistingGroups'));
  361. if (!api_is_allowed_to_edit(false,true)) // If self-registration allowed
  362. {
  363. $table->set_header($column++,get_lang('GroupSelfRegistration'));
  364. }
  365. $table->set_header($column++,get_lang('Registered'));
  366. $table->set_header($column++,get_lang('Max'));
  367. $table->set_header($column++,get_lang('GroupTutor'));
  368. if (api_is_allowed_to_edit(false,true)) // only for course administrator
  369. {
  370. $table->set_header($column++,get_lang('Modify'), false);
  371. $form_actions = array();
  372. $form_actions['delete_selected'] = get_lang('Delete');
  373. $form_actions['fill_selected'] = get_lang('FillGroup');
  374. $form_actions['empty_selected'] = get_lang('EmptyGroup');
  375. if (count($group_list) > 1)
  376. {
  377. $table->set_form_actions($form_actions,'group');
  378. }
  379. }
  380. $table->display();
  381. }
  382. /*
  383. elseif ($in_category)
  384. {
  385. echo get_lang('NoGroupsAvailable');
  386. }
  387. */
  388. }
  389. /*
  390. ==============================================================================
  391. FOOTER
  392. ==============================================================================
  393. */
  394. if (!isset ($_GET['origin']) || $_GET['origin'] != 'learnpath')
  395. {
  396. Display::display_footer();
  397. }
  398. ?>