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- <?php
- /*
- ==============================================================================
- Dokeos - elearning and course management software
-
- Copyright (c) 2004 Dokeos S.A.
- Copyright (c) 2003 Ghent University (UGent)
- Copyright (c) 2001 Universite catholique de Louvain (UCL)
- Copyright (c) various contributors
- Copyright (c) Bart Mollet, Hogeschool Gent
-
- For a full list of contributors, see "credits.txt".
- The full license can be read in "license.txt".
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version 2
- of the License, or (at your option) any later version.
-
- See the GNU General Public License for more details.
-
- Contact: Dokeos, 181 rue Royale, B-1000 Brussels, Belgium, info@dokeos.com
- ==============================================================================
- */
- /**
- ==============================================================================
- * This script displays an area where teachers can edit the group properties and member list.
- * Groups are also often called "teams" in the Dokeos code.
- *
- * @author various contributors
- * @author Roan Embrechts (VUB), partial code cleanup, initial virtual course support
- @package dokeos.group
- * @todo course admin functionality to create groups based on who is in which course (or class).
- ==============================================================================
- */
- /*
- ==============================================================================
- INIT SECTION
- ==============================================================================
- */
- // name of the language file that needs to be included
- $language_file = "group";
- include ('../inc/global.inc.php');
- $this_section = SECTION_COURSES;
- /*
- -----------------------------------------------------------
- Libraries & settings
- -----------------------------------------------------------
- */
- require_once (api_get_path(LIBRARY_PATH).'course.lib.php');
- require_once (api_get_path(LIBRARY_PATH).'groupmanager.lib.php');
- require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
- /*
- -----------------------------------------------------------
- Constants & variables
- -----------------------------------------------------------
- */
- $current_group = GroupManager :: get_group_properties($_SESSION['_gid']);
- /*
- -----------------------------------------------------------
- Header
- -----------------------------------------------------------
- */
- $nameTools = get_lang('EditGroup');
- $interbreadcrumb[] = array ("url" => "group.php", "name" => get_lang('Groups'));
- if (!api_is_allowed_to_edit(false,true)) {
- api_not_allowed(true);
- }
- /*
- ==============================================================================
- FUNCTIONS
- ==============================================================================
- */
- /**
- * function to sort users after getting the list in the db. Necessary because there are 2 or 3 queries. Called by usort()
- */
- function sort_users($user_a, $user_b) {
- if (api_sort_by_first_name()) {
- $cmp = api_strcmp($user_a['firstname'], $user_b['firstname']);
- if ($cmp !== 0) {
- return $cmp;
- } else {
- $cmp = api_strcmp($user_a['lastname'], $user_b['lastname']);
- if ($cmp !== 0) {
- return $cmp;
- } else {
- return api_strcmp($user_a['username'], $user_b['username']);
- }
- }
- } else {
- $cmp = api_strcmp($user_a['lastname'], $user_b['lastname']);
- if ($cmp !== 0) {
- return $cmp;
- } else {
- $cmp = api_strcmp($user_a['firstname'], $user_b['firstname']);
- if ($cmp !== 0) {
- return $cmp;
- } else {
- return api_strcmp($user_a['username'], $user_b['username']);
- }
- }
- }
- }
- /**
- * Function to check the given max number of members per group
- */
- function check_max_number_of_members($value) {
- $max_member_no_limit = $value['max_member_no_limit'];
- if ($max_member_no_limit == MEMBER_PER_GROUP_NO_LIMIT) {
- return true;
- }
- $max_member = $value['max_member'];
- return is_numeric($max_member);
- }
- /**
- * Function to check if the number of selected group members is valid
- */
- function check_group_members($value) {
- if ($value['max_member_no_limit'] == MEMBER_PER_GROUP_NO_LIMIT) {
- return true;
- }
- if (isset($value['max_member']) && isset($value['group_members']) && $value['max_member'] < count($value['group_members'])) {
- return array ('group_members' => get_lang('GroupTooMuchMembers'));
- }
- return true;
- }
- /*
- ==============================================================================
- MAIN CODE
- ==============================================================================
- */
- // Build form
- $form = new FormValidator('group_edit');
- $form->addElement('header', '', $nameTools);
- $form->addElement('hidden', 'action');
- $form->addElement('hidden', 'referer');
- // Group name
- $form->add_textfield('name', get_lang('GroupName'));
- // Description
- $form->addElement('textarea', 'description', get_lang('GroupDescription'), array ('cols' => 50, 'rows' => 6));
- // Tutors: this has been replaced with the new tutors code
- //$tutors = GroupManager :: get_all_tutors();
- //$possible_tutors[0] = get_lang('GroupNoTutor');
- //foreach ($tutors as $index => $tutor)
- //{
- // $possible_tutors[$tutor['user_id']] = api_get_person_name($tutor['lastname'], $tutor['firstname']);
- //}
- //$group = array ();
- //$group[] = & $form->createElement('select', 'tutor_id', null, $possible_tutors);
- //$group[] = & $form->createElement('static', null, null, ' <a href="../user/user.php">'.get_lang('AddTutors').'</a>');
- //$form->addGroup($group, 'tutor_group', get_lang('GroupTutor'), '', false);
- // Members per group
- $form->addElement('radio', 'max_member_no_limit', get_lang('GroupLimit'), get_lang('NoLimit'), MEMBER_PER_GROUP_NO_LIMIT);
- $group = array ();
- $group[] = & $form->createElement('radio', 'max_member_no_limit', null, get_lang('Max'), 1);
- $group[] = & $form->createElement('text', 'max_member', null, array ('size' => 2));
- $group[] = & $form->createElement('static', null, null, get_lang('GroupPlacesThis'));
- $form->addGroup($group, 'max_member_group', null, '', false);
- $form->addRule('max_member_group', get_lang('InvalidMaxNumberOfMembers'), 'callback', 'check_max_number_of_members');
- // Self registration
- $form->addElement('checkbox', 'self_registration_allowed', get_lang('GroupSelfRegistration'), get_lang('GroupAllowStudentRegistration'), 1);
- $form->addElement('checkbox', 'self_unregistration_allowed', null, get_lang('GroupAllowStudentUnregistration'), 1);
- // Documents settings
- $form->addElement('radio', 'doc_state', get_lang('GroupDocument'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
- $form->addElement('radio', 'doc_state', null, get_lang('Public'), TOOL_PUBLIC);
- $form->addElement('radio', 'doc_state', null, get_lang('Private'), TOOL_PRIVATE);
- // Work settings
- $form->addElement('radio', 'work_state', get_lang('GroupWork'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
- $form->addElement('radio', 'work_state', null, get_lang('Public'), TOOL_PUBLIC);
- $form->addElement('radio', 'work_state', null, get_lang('Private'), TOOL_PRIVATE);
- // Calendar settings
- $form->addElement('radio', 'calendar_state', get_lang('GroupCalendar'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
- $form->addElement('radio', 'calendar_state', null, get_lang('Public'), TOOL_PUBLIC);
- $form->addElement('radio', 'calendar_state', null, get_lang('Private'), TOOL_PRIVATE);
- // Announcements settings
- $form->addElement('radio', 'announcements_state', get_lang('GroupAnnouncements'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
- $form->addElement('radio', 'announcements_state', null, get_lang('Public'), TOOL_PUBLIC);
- $form->addElement('radio', 'announcements_state', null, get_lang('Private'), TOOL_PRIVATE);
- //Forum settings
- $form->addElement('radio', 'forum_state', get_lang('GroupForum'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
- $form->addElement('radio', 'forum_state', null, get_lang('Public'), TOOL_PUBLIC);
- $form->addElement('radio', 'forum_state', null, get_lang('Private'), TOOL_PRIVATE);
- // Wiki settings
- $form->addElement('radio', 'wiki_state', get_lang('GroupWiki'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
- $form->addElement('radio', 'wiki_state', null, get_lang('Public'), TOOL_PUBLIC);
- $form->addElement('radio', 'wiki_state', null, get_lang('Private'), TOOL_PRIVATE);
- // getting all the users
- if (isset($_SESSION['id_session'])) {
- $complete_user_list = CourseManager :: get_user_list_from_course_code($_course['id'],true,$_SESSION['id_session']);
- $complete_user_list2 = CourseManager :: get_coach_list_from_course_code($_course['id'],$_SESSION['id_session']);
- $complete_user_list = array_merge($complete_user_list,$complete_user_list2);
- } else {
- $complete_user_list = CourseManager :: get_user_list_from_course_code($_course['id']);
- }
- usort($complete_user_list, 'sort_users');
- $possible_users = array ();
- foreach ($complete_user_list as $index => $user) {
- $possible_users[$user['user_id']] = api_get_person_name($user['firstname'], $user['lastname']).' ('.$user['username'].')';
- }
- //print_r($complete_user_list2);
- // Group tutors
- $group_tutor_list = GroupManager :: get_subscribed_tutors($current_group['id']);
- $selected_users = array ();
- $selected_tutors = array();
- foreach ($group_tutor_list as $index => $user) {
- //$possible_users[$user['user_id']] = api_get_person_name($user['firstname'], .$user['lastname']);
- $selected_tutors[] = $user['user_id'];
- }
- $group_tutors_element = $form->addElement('advmultiselect', 'group_tutors', get_lang('GroupTutors'), $possible_users, 'style="width: 225px;"');
- $group_tutors_element->setElementTemplate('
- {javascript}
- <table{class}>
- <!-- BEGIN label_2 --><tr><th>{label_2}</th><!-- END label_2 -->
- <!-- BEGIN label_3 --><th> </th><th>{label_3}</th></tr><!-- END label_3 -->
- <tr>
- <td valign="top">{unselected}</td>
- <td align="center">{add}<br /><br />{remove}</td>
- <td valign="top">{selected}</td>
- </tr>
- </table>
- ');
- // Group members
- $group_member_list = GroupManager :: get_subscribed_users($current_group['id']);
- $selected_users = array ();
- foreach ($group_member_list as $index => $user) {
- //$possible_users[$user['user_id']] = api_get_person_name($user['firstname'], $user['lastname']);
- $selected_users[] = $user['user_id'];
- }
- $group_members_element = $form->addElement('advmultiselect', 'group_members', get_lang('GroupMembers'), $possible_users, 'style="width: 225px;"');
- $group_members_element->setElementTemplate('
- {javascript}
- <table{class}>
- <!-- BEGIN label_2 --><tr><th>{label_2}</th><!-- END label_2 -->
- <!-- BEGIN label_3 --><th> </th><th>{label_3}</th></tr><!-- END label_3 -->
- <tr>
- <td valign="top">{unselected}</td>
- <td align="center">{add}<br /><br />{remove}</td>
- <td valign="top">{selected}</td>
- </tr>
- </table>
- ');
- $form->addFormRule('check_group_members');
- // submit button
- $form->addElement('style_submit_button', 'submit', get_lang('PropModify'), 'class="save"');
- if ($form->validate()) {
- $values = $form->exportValues();
- if ($values['max_member_no_limit'] == MEMBER_PER_GROUP_NO_LIMIT) {
- $max_member = MEMBER_PER_GROUP_NO_LIMIT;
- } else {
- $max_member = $values['max_member'];
- }
- $self_registration_allowed = isset ($values['self_registration_allowed']) ? 1 : 0;
- $self_unregistration_allowed = isset ($values['self_unregistration_allowed']) ? 1 : 0;
- 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'], $self_registration_allowed, $self_unregistration_allowed);
-
- // storing the tutors (we first remove all the tutors and then add only those who were selected)
- GroupManager :: unsubscribe_all_tutors($current_group['id']);
- if (isset ($_POST['group_tutors']) && count($_POST['group_tutors']) > 0) {
- GroupManager :: subscribe_tutors($values['group_tutors'], $current_group['id']);
- }
-
- // storing the users (we first remove all users and then add only those who were selected)
- GroupManager :: unsubscribe_all_users($current_group['id']);
- if (isset ($_POST['group_members']) && count($_POST['group_members']) > 0) {
- GroupManager :: subscribe_users($values['group_members'], $current_group['id']);
- }
-
- // returning to the group area (note: this is inconsistent with the rest of dokeos)
- $cat = GroupManager :: get_category_from_group($current_group['id']);
- header('Location: '.$values['referer'].'?action=show_msg&msg='.get_lang('GroupSettingsModified').'&category='.$cat['id']);
- }
- $defaults = $current_group;
- $defaults['group_members'] = $selected_users;
- $defaults['group_tutors'] = $selected_tutors;
- isset($_GET['action'])?$action=$_GET['action']:$action='';
- $defaults['action'] = $action;
- if ($defaults['maximum_number_of_students'] == MEMBER_PER_GROUP_NO_LIMIT) {
- $defaults['max_member_no_limit'] = MEMBER_PER_GROUP_NO_LIMIT;
- } else {
- $defaults['max_member_no_limit'] = 1;
- $defaults['max_member'] = $defaults['maximum_number_of_students'];
- }
- $referer = parse_url($_SERVER['HTTP_REFERER']);
- $referer = basename($referer['path']);
- if ($referer != 'group_space.php' && $referer != 'group.php') {
- $referer = 'group.php';
- }
- if (isset($_POST['group_members'])) {
- if (count($_POST['group_members'])<=$defaults['max_member']) {
- //
- } else {
- header('Location:group_edit.php?show_message='.get_lang('GroupTooMuchMembers'));
- }
- }
- Display :: display_header($nameTools, "Group");
- ?>
- <div class="actions">
- <a href="group_space.php"><?php echo Display::return_icon('back.png',get_lang('ReturnTo').' '.get_lang('GroupSpace')).get_lang('ReturnTo').' '.get_lang('GroupSpace') ?></a>
- </div>
- <?php
- if (isset($_GET['show_message'])) {
- echo Display::display_error_message(get_lang($_GET['show_message']));
- }
- $defaults['referer'] = $referer;
- $form->setDefaults($defaults);
- $form->display();
- /*
- ==============================================================================
- FOOTER
- ==============================================================================
- */
- Display :: display_footer();
- ?>
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