group_edit.php 12 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. $interbreadcrumb[] = array ('url' => 'group.php', 'name' => get_lang('Groups'));
  26. if (!api_is_allowed_to_edit(false,true)) {
  27. api_not_allowed(true);
  28. }
  29. /* FUNCTIONS */
  30. /**
  31. * function to sort users after getting the list in the db. Necessary because there are 2 or 3 queries. Called by usort()
  32. */
  33. function sort_users($user_a, $user_b) {
  34. if (api_sort_by_first_name()) {
  35. $cmp = api_strcmp($user_a['firstname'], $user_b['firstname']);
  36. if ($cmp !== 0) {
  37. return $cmp;
  38. } else {
  39. $cmp = api_strcmp($user_a['lastname'], $user_b['lastname']);
  40. if ($cmp !== 0) {
  41. return $cmp;
  42. } else {
  43. return api_strcmp($user_a['username'], $user_b['username']);
  44. }
  45. }
  46. } else {
  47. $cmp = api_strcmp($user_a['lastname'], $user_b['lastname']);
  48. if ($cmp !== 0) {
  49. return $cmp;
  50. } else {
  51. $cmp = api_strcmp($user_a['firstname'], $user_b['firstname']);
  52. if ($cmp !== 0) {
  53. return $cmp;
  54. } else {
  55. return api_strcmp($user_a['username'], $user_b['username']);
  56. }
  57. }
  58. }
  59. }
  60. /**
  61. * Function to check the given max number of members per group
  62. */
  63. function check_max_number_of_members($value) {
  64. $max_member_no_limit = $value['max_member_no_limit'];
  65. if ($max_member_no_limit == MEMBER_PER_GROUP_NO_LIMIT) {
  66. return true;
  67. }
  68. $max_member = $value['max_member'];
  69. return is_numeric($max_member);
  70. }
  71. /**
  72. * Function to check if the number of selected group members is valid
  73. */
  74. function check_group_members($value) {
  75. if ($value['max_member_no_limit'] == MEMBER_PER_GROUP_NO_LIMIT) {
  76. return true;
  77. }
  78. if (isset($value['max_member']) && isset($value['group_members']) && $value['max_member'] < count($value['group_members'])) {
  79. return array ('group_members' => get_lang('GroupTooMuchMembers'));
  80. }
  81. return true;
  82. }
  83. /* MAIN CODE */
  84. // Build form
  85. $form = new FormValidator('group_edit');
  86. $form->addElement('header', '', $nameTools);
  87. $form->addElement('hidden', 'action');
  88. $form->addElement('hidden', 'referer');
  89. // Group name
  90. $form->add_textfield('name', get_lang('GroupName'));
  91. // Description
  92. $form->addElement('textarea', 'description', get_lang('Description'), array ('cols' => 50, 'rows' => 6));
  93. // Tutors: this has been replaced with the new tutors code
  94. //$tutors = GroupManager :: get_all_tutors();
  95. //$possible_tutors[0] = get_lang('GroupNoTutor');
  96. //foreach ($tutors as $index => $tutor)
  97. //{
  98. // $possible_tutors[$tutor['user_id']] = api_get_person_name($tutor['lastname'], $tutor['firstname']);
  99. //}
  100. //$group = array ();
  101. //$group[] = & $form->createElement('select', 'tutor_id', null, $possible_tutors);
  102. //$group[] = & $form->createElement('static', null, null, '&nbsp;&nbsp;<a href="../user/user.php">'.get_lang('AddTutors').'</a>');
  103. //$form->addGroup($group, 'tutor_group', get_lang('GroupTutor'), '', false);
  104. // Members per group
  105. $form->addElement('radio', 'max_member_no_limit', get_lang('GroupLimit'), get_lang('NoLimit'), MEMBER_PER_GROUP_NO_LIMIT);
  106. $group = array();
  107. $group[] = & $form->createElement('radio', 'max_member_no_limit', null, get_lang('MaximumOfParticipants'), 1);
  108. $group[] = & $form->createElement('text', 'max_member', null, array('size' => 2));
  109. $group[] = & $form->createElement('static', null, null, get_lang('GroupPlacesThis'));
  110. $form->addGroup($group, 'max_member_group', null, '', false);
  111. $form->addRule('max_member_group', get_lang('InvalidMaxNumberOfMembers'), 'callback', 'check_max_number_of_members');
  112. // Self registration
  113. $form->addElement('checkbox', 'self_registration_allowed', get_lang('GroupSelfRegistration'), get_lang('GroupAllowStudentRegistration'), 1);
  114. $form->addElement('checkbox', 'self_unregistration_allowed', null, get_lang('GroupAllowStudentUnregistration'), 1);
  115. // Documents settings
  116. $form->addElement('radio', 'doc_state', get_lang('GroupDocument'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
  117. $form->addElement('radio', 'doc_state', null, get_lang('Public'), TOOL_PUBLIC);
  118. $form->addElement('radio', 'doc_state', null, get_lang('Private'), TOOL_PRIVATE);
  119. // Work settings
  120. $form->addElement('radio', 'work_state', get_lang('GroupWork'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
  121. $form->addElement('radio', 'work_state', null, get_lang('Public'), TOOL_PUBLIC);
  122. $form->addElement('radio', 'work_state', null, get_lang('Private'), TOOL_PRIVATE);
  123. // Calendar settings
  124. $form->addElement('radio', 'calendar_state', get_lang('GroupCalendar'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
  125. $form->addElement('radio', 'calendar_state', null, get_lang('Public'), TOOL_PUBLIC);
  126. $form->addElement('radio', 'calendar_state', null, get_lang('Private'), TOOL_PRIVATE);
  127. // Announcements settings
  128. $form->addElement('radio', 'announcements_state', get_lang('GroupAnnouncements'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
  129. $form->addElement('radio', 'announcements_state', null, get_lang('Public'), TOOL_PUBLIC);
  130. $form->addElement('radio', 'announcements_state', null, get_lang('Private'), TOOL_PRIVATE);
  131. //Forum settings
  132. $form->addElement('radio', 'forum_state', get_lang('GroupForum'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
  133. $form->addElement('radio', 'forum_state', null, get_lang('Public'), TOOL_PUBLIC);
  134. $form->addElement('radio', 'forum_state', null, get_lang('Private'), TOOL_PRIVATE);
  135. // Wiki settings
  136. $form->addElement('radio', 'wiki_state', get_lang('GroupWiki'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
  137. $form->addElement('radio', 'wiki_state', null, get_lang('Public'), TOOL_PUBLIC);
  138. $form->addElement('radio', 'wiki_state', null, get_lang('Private'), TOOL_PRIVATE);
  139. // Chat settings
  140. $form->addElement('radio', 'chat_state', get_lang('Chat'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
  141. $form->addElement('radio', 'chat_state', null, get_lang('Public'), TOOL_PUBLIC);
  142. $form->addElement('radio', 'chat_state', null, get_lang('Private'), TOOL_PRIVATE);
  143. // Getting all the users
  144. if (isset($_SESSION['id_session'])) {
  145. $complete_user_list = CourseManager :: get_user_list_from_course_code($_course['id'], true, $_SESSION['id_session']);
  146. $complete_user_list2 = CourseManager :: get_coach_list_from_course_code($_course['id'], $_SESSION['id_session']);
  147. $complete_user_list = array_merge($complete_user_list, $complete_user_list2);
  148. } else {
  149. $complete_user_list = CourseManager :: get_user_list_from_course_code($_course['id']);
  150. }
  151. usort($complete_user_list, 'sort_users');
  152. $possible_users = array();
  153. foreach ($complete_user_list as $index => $user) {
  154. $possible_users[$user['user_id']] = api_get_person_name($user['firstname'], $user['lastname']).' ('.$user['username'].')';
  155. }
  156. // Group tutors
  157. $group_tutor_list = GroupManager :: get_subscribed_tutors($current_group['id']);
  158. $selected_users = array();
  159. $selected_tutors = array();
  160. foreach ($group_tutor_list as $index => $user) {
  161. //$possible_users[$user['user_id']] = api_get_person_name($user['firstname'], .$user['lastname']);
  162. $selected_tutors[] = $user['user_id'];
  163. }
  164. $group_tutors_element = $form->addElement('advmultiselect', 'group_tutors', get_lang('GroupTutors'), $possible_users, 'style="width: 225px;"');
  165. $group_tutors_element->setElementTemplate('
  166. {javascript}
  167. <table{class}>
  168. <!-- BEGIN label_2 --><tr><th>{label_2}</th><!-- END label_2 -->
  169. <!-- BEGIN label_3 --><th>&nbsp;</th><th>{label_3}</th></tr><!-- END label_3 -->
  170. <tr>
  171. <td valign="top">{unselected}</td>
  172. <td align="center">{add}<br /><br />{remove}</td>
  173. <td valign="top">{selected}</td>
  174. </tr>
  175. </table>
  176. ');
  177. $group_tutors_element->setButtonAttributes('add', array('class' => 'arrowr'));
  178. $group_tutors_element->setButtonAttributes('remove', array('class' => 'arrowl'));
  179. // Group members
  180. $group_member_list = GroupManager :: get_subscribed_users($current_group['id']);
  181. $selected_users = array ();
  182. foreach ($group_member_list as $index => $user) {
  183. //$possible_users[$user['user_id']] = api_get_person_name($user['firstname'], $user['lastname']);
  184. $selected_users[] = $user['user_id'];
  185. }
  186. $group_members_element = $form->addElement('advmultiselect', 'group_members', get_lang('GroupMembers'), $possible_users, 'style="width: 225px;"');
  187. $group_members_element->setElementTemplate('
  188. {javascript}
  189. <table{class}>
  190. <!-- BEGIN label_2 --><tr><th>{label_2}</th><!-- END label_2 -->
  191. <!-- BEGIN label_3 --><th>&nbsp;</th><th>{label_3}</th></tr><!-- END label_3 -->
  192. <tr>
  193. <td valign="top">{unselected}</td>
  194. <td align="center">{add}<br /><br />{remove}</td>
  195. <td valign="top">{selected}</td>
  196. </tr>
  197. </table>
  198. ');
  199. $group_members_element->setButtonAttributes('add', array('class' => 'arrowr'));
  200. $group_members_element->setButtonAttributes('remove', array('class' => 'arrowl'));
  201. $form->addFormRule('check_group_members');
  202. // submit button
  203. $form->addElement('style_submit_button', 'submit', get_lang('PropModify'), 'class="save"');
  204. if ($form->validate()) {
  205. $values = $form->exportValues();
  206. if ($values['max_member_no_limit'] == MEMBER_PER_GROUP_NO_LIMIT) {
  207. $max_member = MEMBER_PER_GROUP_NO_LIMIT;
  208. } else {
  209. $max_member = $values['max_member'];
  210. }
  211. $self_registration_allowed = isset($values['self_registration_allowed']) ? 1 : 0;
  212. $self_unregistration_allowed = isset($values['self_unregistration_allowed']) ? 1 : 0;
  213. 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, $self_unregistration_allowed);
  214. // Storing the tutors (we first remove all the tutors and then add only those who were selected)
  215. GroupManager :: unsubscribe_all_tutors($current_group['id']);
  216. if (isset ($_POST['group_tutors']) && count($_POST['group_tutors']) > 0) {
  217. GroupManager :: subscribe_tutors($values['group_tutors'], $current_group['id']);
  218. }
  219. // Storing the users (we first remove all users and then add only those who were selected)
  220. GroupManager :: unsubscribe_all_users($current_group['id']);
  221. if (isset ($_POST['group_members']) && count($_POST['group_members']) > 0) {
  222. GroupManager :: subscribe_users($values['group_members'], $current_group['id']);
  223. }
  224. // Returning to the group area (note: this is inconsistent with the rest of chamilo)
  225. $cat = GroupManager :: get_category_from_group($current_group['id']);
  226. header('Location: '.$values['referer'].'?action=show_msg&msg='.get_lang('GroupSettingsModified').'&category='.$cat['id']);
  227. }
  228. $defaults = $current_group;
  229. $defaults['group_members'] = $selected_users;
  230. $defaults['group_tutors'] = $selected_tutors;
  231. $action = isset($_GET['action']) ? $_GET['action'] : '';
  232. $defaults['action'] = $action;
  233. if ($defaults['maximum_number_of_students'] == MEMBER_PER_GROUP_NO_LIMIT) {
  234. $defaults['max_member_no_limit'] = MEMBER_PER_GROUP_NO_LIMIT;
  235. } else {
  236. $defaults['max_member_no_limit'] = 1;
  237. $defaults['max_member'] = $defaults['maximum_number_of_students'];
  238. }
  239. $referer = parse_url($_SERVER['HTTP_REFERER']);
  240. $referer = basename($referer['path']);
  241. if ($referer != 'group_space.php' && $referer != 'group.php') {
  242. $referer = 'group.php';
  243. }
  244. if (isset($_POST['group_members'])) {
  245. if (count($_POST['group_members']) <= $defaults['max_member']) {
  246. //
  247. } else {
  248. header('Location:group_edit.php?show_message='.get_lang('GroupTooMuchMembers'));
  249. }
  250. }
  251. Display :: display_header($nameTools, 'Group');
  252. ?>
  253. <div class="actions">
  254. <a href="group_space.php"><?php echo Display::return_icon('back.png', get_lang('ReturnTo').' '.get_lang('GroupSpace')).get_lang('ReturnTo').' '.get_lang('GroupSpace') ?></a>
  255. </div>
  256. <?php
  257. if (isset($_GET['show_message'])) {
  258. echo Display::display_error_message($_GET['show_message']);
  259. }
  260. $defaults['referer'] = $referer;
  261. $form->setDefaults($defaults);
  262. $form->display();
  263. /* FOOTER */
  264. Display :: display_footer();