group_edit.php 15 KB

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  1. <?php
  2. /* For licensing terms, see /license.txt */
  3. /**
  4. * This script displays an area where teachers can edit the group properties and member list.
  5. * Groups are also often called "teams" in the Dokeos code.
  6. *
  7. * @author various contributors
  8. * @author Roan Embrechts (VUB), partial code cleanup, initial virtual course support
  9. * @package chamilo.group
  10. * @todo course admin functionality to create groups based on who is in which course (or class).
  11. */
  12. /* INIT SECTION */
  13. // Name of the language file that needs to be included
  14. $language_file = 'group';
  15. require '../inc/global.inc.php';
  16. $this_section = SECTION_COURSES;
  17. /* Libraries & settings */
  18. require_once api_get_path(LIBRARY_PATH).'course.lib.php';
  19. require_once api_get_path(LIBRARY_PATH).'groupmanager.lib.php';
  20. require_once api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php';
  21. /* Constants & variables */
  22. $current_group = GroupManager :: get_group_properties($_SESSION['_gid']);
  23. /* Header */
  24. $nameTools = get_lang('EditGroup');
  25. $interbreadcrumb[] = array ('url' => 'group.php', 'name' => get_lang('Groups'));
  26. if (!api_is_allowed_to_edit(false,true)) {
  27. api_not_allowed(true);
  28. }
  29. /* FUNCTIONS */
  30. /**
  31. * List all users registered to the course
  32. */
  33. function search_members_keyword($firstname, $lastname, $username, $official_code, $keyword) {
  34. if (api_strripos($firstname, $keyword) !== false || api_strripos($lastname, $keyword) !== false || api_strripos($username, $keyword) !== false || api_strripos($official_code, $keyword) !== false) {
  35. return true;
  36. } else {
  37. return false;
  38. }
  39. }
  40. /**
  41. * function to sort users after getting the list in the db. Necessary because there are 2 or 3 queries. Called by usort()
  42. */
  43. function sort_users($user_a, $user_b) {
  44. if (api_sort_by_first_name()) {
  45. $cmp = api_strcmp($user_a['firstname'], $user_b['firstname']);
  46. if ($cmp !== 0) {
  47. return $cmp;
  48. } else {
  49. $cmp = api_strcmp($user_a['lastname'], $user_b['lastname']);
  50. if ($cmp !== 0) {
  51. return $cmp;
  52. } else {
  53. return api_strcmp($user_a['username'], $user_b['username']);
  54. }
  55. }
  56. } else {
  57. $cmp = api_strcmp($user_a['lastname'], $user_b['lastname']);
  58. if ($cmp !== 0) {
  59. return $cmp;
  60. } else {
  61. $cmp = api_strcmp($user_a['firstname'], $user_b['firstname']);
  62. if ($cmp !== 0) {
  63. return $cmp;
  64. } else {
  65. return api_strcmp($user_a['username'], $user_b['username']);
  66. }
  67. }
  68. }
  69. }
  70. /**
  71. * Function to check the given max number of members per group
  72. */
  73. function check_max_number_of_members($value) {
  74. $max_member_no_limit = $value['max_member_no_limit'];
  75. if ($max_member_no_limit == MEMBER_PER_GROUP_NO_LIMIT) {
  76. return true;
  77. }
  78. $max_member = $value['max_member'];
  79. return is_numeric($max_member);
  80. }
  81. /**
  82. * Function to check if the number of selected group members is valid
  83. */
  84. function check_group_members($value) {
  85. if ($value['max_member_no_limit'] == MEMBER_PER_GROUP_NO_LIMIT) {
  86. return true;
  87. }
  88. if (isset($value['max_member']) && isset($value['group_members']) && $value['max_member'] < count($value['group_members'])) {
  89. return array ('group_members' => get_lang('GroupTooMuchMembers'));
  90. }
  91. return true;
  92. }
  93. /* MAIN CODE */
  94. // Build form
  95. $form = new FormValidator('group_edit');
  96. $form->addElement('header', '', $nameTools);
  97. $form->addElement('hidden', 'action');
  98. $form->addElement('hidden', 'referer');
  99. // Group name
  100. $form->add_textfield('name', get_lang('GroupName'));
  101. // Description
  102. $form->addElement('textarea', 'description', get_lang('Description'), array ('cols' => 50, 'rows' => 6));
  103. // Tutors: this has been replaced with the new tutors code
  104. //$tutors = GroupManager :: get_all_tutors();
  105. //$possible_tutors[0] = get_lang('GroupNoTutor');
  106. //foreach ($tutors as $index => $tutor)
  107. //{
  108. // $possible_tutors[$tutor['user_id']] = api_get_person_name($tutor['lastname'], $tutor['firstname']);
  109. //}
  110. //$group = array ();
  111. //$group[] = & $form->createElement('select', 'tutor_id', null, $possible_tutors);
  112. //$group[] = & $form->createElement('static', null, null, '&nbsp;&nbsp;<a href="../user/user.php">'.get_lang('AddTutors').'</a>');
  113. //$form->addGroup($group, 'tutor_group', get_lang('GroupTutor'), '', false);
  114. // Members per group
  115. $form->addElement('radio', 'max_member_no_limit', get_lang('GroupLimit'), get_lang('NoLimit'), MEMBER_PER_GROUP_NO_LIMIT);
  116. $group = array();
  117. $group[] = & $form->createElement('radio', 'max_member_no_limit', null, get_lang('MaximumOfParticipants'), 1);
  118. $group[] = & $form->createElement('text', 'max_member', null, array('size' => 2));
  119. $group[] = & $form->createElement('static', null, null, get_lang('GroupPlacesThis'));
  120. $form->addGroup($group, 'max_member_group', null, '', false);
  121. $form->addRule('max_member_group', get_lang('InvalidMaxNumberOfMembers'), 'callback', 'check_max_number_of_members');
  122. // Self registration
  123. $form->addElement('checkbox', 'self_registration_allowed', get_lang('GroupSelfRegistration'), get_lang('GroupAllowStudentRegistration'), 1);
  124. $form->addElement('checkbox', 'self_unregistration_allowed', null, get_lang('GroupAllowStudentUnregistration'), 1);
  125. // Documents settings
  126. $form->addElement('radio', 'doc_state', get_lang('GroupDocument'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
  127. $form->addElement('radio', 'doc_state', null, get_lang('Public'), TOOL_PUBLIC);
  128. $form->addElement('radio', 'doc_state', null, get_lang('Private'), TOOL_PRIVATE);
  129. // Work settings
  130. $form->addElement('radio', 'work_state', get_lang('GroupWork'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
  131. $form->addElement('radio', 'work_state', null, get_lang('Public'), TOOL_PUBLIC);
  132. $form->addElement('radio', 'work_state', null, get_lang('Private'), TOOL_PRIVATE);
  133. // Calendar settings
  134. $form->addElement('radio', 'calendar_state', get_lang('GroupCalendar'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
  135. $form->addElement('radio', 'calendar_state', null, get_lang('Public'), TOOL_PUBLIC);
  136. $form->addElement('radio', 'calendar_state', null, get_lang('Private'), TOOL_PRIVATE);
  137. // Announcements settings
  138. $form->addElement('radio', 'announcements_state', get_lang('GroupAnnouncements'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
  139. $form->addElement('radio', 'announcements_state', null, get_lang('Public'), TOOL_PUBLIC);
  140. $form->addElement('radio', 'announcements_state', null, get_lang('Private'), TOOL_PRIVATE);
  141. //Forum settings
  142. $form->addElement('radio', 'forum_state', get_lang('GroupForum'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
  143. $form->addElement('radio', 'forum_state', null, get_lang('Public'), TOOL_PUBLIC);
  144. $form->addElement('radio', 'forum_state', null, get_lang('Private'), TOOL_PRIVATE);
  145. // Wiki settings
  146. $form->addElement('radio', 'wiki_state', get_lang('GroupWiki'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
  147. $form->addElement('radio', 'wiki_state', null, get_lang('Public'), TOOL_PUBLIC);
  148. $form->addElement('radio', 'wiki_state', null, get_lang('Private'), TOOL_PRIVATE);
  149. // Chat settings
  150. $form->addElement('radio', 'chat_state', get_lang('Chat'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
  151. $form->addElement('radio', 'chat_state', null, get_lang('Public'), TOOL_PUBLIC);
  152. $form->addElement('radio', 'chat_state', null, get_lang('Private'), TOOL_PRIVATE);
  153. // Search Members of group
  154. //$form = new FormValidator('search_member', 'get', 'group_edit', '', null, false);
  155. //$renderer = & $form->defaultRenderer();
  156. //$renderer->setElementTemplate('<span>{element}</span> ');
  157. //$form->add_textfield('keyword', get_lang('GroupMembers'), false);
  158. //$form->addElement('style_submit_button', 'submit', get_lang('Search'), 'class="search"');
  159. // Getting all the users
  160. /*
  161. if (isset($_SESSION['id_session'])) {
  162. $complete_user_list = CourseManager :: get_user_list_from_course_code($_course['id'], true, $_SESSION['id_session']);
  163. $complete_user_list2 = CourseManager :: get_coach_list_from_course_code($_course['id'], $_SESSION['id_session']);
  164. $complete_user_list = array_merge($complete_user_list, $complete_user_list2);
  165. } else {
  166. $complete_user_list = CourseManager :: get_user_list_from_course_code($_course['id']);
  167. }
  168. foreach ($complete_user_list as $user_id => $o_course_user) {
  169. if ((isset ($_GET['keyword']) && search_members_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'])) {
  170. $groups_name = GroupManager :: get_user_group_name($user_id);
  171. if ($is_western_name_order) {
  172. $temp[] = $o_course_user['firstname'];
  173. $temp[] = $o_course_user['lastname'];
  174. } else {
  175. $temp[] = $o_course_user['lastname'];
  176. $temp[] = $o_course_user['firstname'];
  177. }
  178. $temp[] = $o_course_user['role'];
  179. $temp[] = implode(', ', $groups_name); //Group
  180. $temp[] = $o_course_user['official_code'];
  181. }
  182. }*/
  183. $complete_user_list = GroupManager :: fill_groups_list($current_group['id']);
  184. usort($complete_user_list, 'sort_users');
  185. $possible_users = array();
  186. foreach ($complete_user_list as $index => $user) {
  187. $possible_users[$user['user_id']] = api_get_person_name($user['firstname'], $user['lastname']).' ('.$user['username'].')';
  188. }
  189. // Group tutors
  190. $group_tutor_list = GroupManager :: get_subscribed_tutors($current_group['id']);
  191. $selected_users = array();
  192. $selected_tutors = array();
  193. foreach ($group_tutor_list as $index => $user) {
  194. //$possible_users[$user['user_id']] = api_get_person_name($user['firstname'], .$user['lastname']);
  195. $selected_tutors[] = $user['user_id'];
  196. }
  197. $group_tutors_element = $form->addElement('advmultiselect', 'group_tutors', get_lang('GroupTutors'), $possible_users, 'style="width: 280px;"');
  198. $group_tutors_element->setElementTemplate('
  199. {javascript}
  200. <table{class}>
  201. <!-- BEGIN label_2 --><tr><th>{label_2}</th><!-- END label_2 -->
  202. <!-- BEGIN label_3 --><th>&nbsp;</th><th>{label_3}</th></tr><!-- END label_3 -->
  203. <tr>
  204. <td valign="top">{unselected}</td>
  205. <td align="center">{add}<br /><br />{remove}</td>
  206. <td valign="top">{selected}</td>
  207. </tr>
  208. </table>
  209. ');
  210. $group_tutors_element->setButtonAttributes('add', array('class' => 'arrowr'));
  211. $group_tutors_element->setButtonAttributes('remove', array('class' => 'arrowl'));
  212. // Group members
  213. $group_member_list = GroupManager :: get_subscribed_users($current_group['id']);
  214. $selected_users = array ();
  215. foreach ($group_member_list as $index => $user) {
  216. //$possible_users[$user['user_id']] = api_get_person_name($user['firstname'], $user['lastname']);
  217. $selected_users[] = $user['user_id'];
  218. }
  219. // possible : number_groups_left > 0 and is group member
  220. $possible_users = array();
  221. foreach ($complete_user_list as $index => $user) {
  222. if( $user['number_groups_left'] >0 || in_array($user['user_id'],$selected_users) )
  223. $possible_users[$user['user_id']] = api_get_person_name($user['firstname'], $user['lastname']).' ('.$user['username'].')';
  224. }
  225. $group_members_element = $form->addElement('advmultiselect', 'group_members', get_lang('GroupMembers'), $possible_users, 'style="width: 280px;"');
  226. $group_members_element->setElementTemplate('
  227. {javascript}
  228. <table{class}>
  229. <!-- BEGIN label_2 --><tr><th>{label_2}</th><!-- END label_2 -->
  230. <!-- BEGIN label_3 --><th>&nbsp;</th><th>{label_3}</th></tr><!-- END label_3 -->
  231. <tr>
  232. <td valign="top">{unselected}</td>
  233. <td align="center">{add}<br /><br />{remove}</td>
  234. <td valign="top">{selected}</td>
  235. </tr>
  236. </table>
  237. ');
  238. $group_members_element->setButtonAttributes('add', array('class' => 'arrowr'));
  239. $group_members_element->setButtonAttributes('remove', array('class' => 'arrowl'));
  240. $form->addFormRule('check_group_members');
  241. // submit button
  242. $form->addElement('style_submit_button', 'submit', get_lang('PropModify'), 'class="save"');
  243. if ($form->validate()) {
  244. $values = $form->exportValues();
  245. if ($values['max_member_no_limit'] == MEMBER_PER_GROUP_NO_LIMIT) {
  246. $max_member = MEMBER_PER_GROUP_NO_LIMIT;
  247. } else {
  248. $max_member = $values['max_member'];
  249. }
  250. $self_registration_allowed = isset($values['self_registration_allowed']) ? 1 : 0;
  251. $self_unregistration_allowed = isset($values['self_unregistration_allowed']) ? 1 : 0;
  252. GroupManager :: set_group_properties($current_group['id'], strip_tags($values['name']), strip_tags($values['description']), $max_member, $values['doc_state'], $values['work_state'], $values['calendar_state'], $values['announcements_state'], $values['forum_state'], $values['wiki_state'], $values['chat_state'], $self_registration_allowed, $self_unregistration_allowed);
  253. // Storing the tutors (we first remove all the tutors and then add only those who were selected)
  254. GroupManager :: unsubscribe_all_tutors($current_group['id']);
  255. if (isset ($_POST['group_tutors']) && count($_POST['group_tutors']) > 0) {
  256. GroupManager :: subscribe_tutors($values['group_tutors'], $current_group['id']);
  257. }
  258. // Storing the users (we first remove all users and then add only those who were selected)
  259. GroupManager :: unsubscribe_all_users($current_group['id']);
  260. if (isset ($_POST['group_members']) && count($_POST['group_members']) > 0) {
  261. GroupManager :: subscribe_users($values['group_members'], $current_group['id']);
  262. }
  263. // Returning to the group area (note: this is inconsistent with the rest of chamilo)
  264. $cat = GroupManager :: get_category_from_group($current_group['id']);
  265. header('Location: '.$values['referer'].'?action=show_msg&msg='.get_lang('GroupSettingsModified').'&category='.$cat['id']);
  266. }
  267. $defaults = $current_group;
  268. $defaults['group_members'] = $selected_users;
  269. $defaults['group_tutors'] = $selected_tutors;
  270. $action = isset($_GET['action']) ? $_GET['action'] : '';
  271. $defaults['action'] = $action;
  272. if ($defaults['maximum_number_of_students'] == MEMBER_PER_GROUP_NO_LIMIT) {
  273. $defaults['max_member_no_limit'] = MEMBER_PER_GROUP_NO_LIMIT;
  274. } else {
  275. $defaults['max_member_no_limit'] = 1;
  276. $defaults['max_member'] = $defaults['maximum_number_of_students'];
  277. }
  278. $referer = parse_url($_SERVER['HTTP_REFERER']);
  279. $referer = basename($referer['path']);
  280. if ($referer != 'group_space.php' && $referer != 'group.php') {
  281. $referer = 'group.php';
  282. }
  283. if (isset($_POST['group_members'])) {
  284. if (count($_POST['group_members']) <= $defaults['max_member']) {
  285. //
  286. } else {
  287. header('Location:group_edit.php?show_message='.get_lang('GroupTooMuchMembers'));
  288. }
  289. }
  290. if (!empty($_GET['keyword']) && !empty($_GET['submit'])) {
  291. $keyword_name = Security::remove_XSS($_GET['keyword']);
  292. echo '<br/>'.get_lang('SearchResultsFor').' <span style="font-style: italic ;"> '.$keyword_name.' </span><br>';
  293. }
  294. Display :: display_header($nameTools, 'Group');
  295. ?>
  296. <div class="actions">
  297. <a href="group_space.php"><?php echo Display::return_icon('back.png', get_lang('ReturnTo').' '.get_lang('GroupSpace'),'',32); ?></a>
  298. </div>
  299. <?php
  300. if (isset($_GET['show_message'])) {
  301. echo Display::display_error_message($_GET['show_message']);
  302. }
  303. $defaults['referer'] = $referer;
  304. $form->setDefaults($defaults);
  305. $form->display();
  306. /* FOOTER */
  307. Display :: display_footer();