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381 lines
17 KiB
381 lines
17 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* This script displays an area where teachers can edit the group properties and member list.
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* Groups are also often called "teams" in the Dokeos code.
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*
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* @author various contributors
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* @author Roan Embrechts (VUB), partial code cleanup, initial virtual course support
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* @package chamilo.group
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* @todo course admin functionality to create groups based on who is in which course (or class).
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*/
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/* INIT SECTION */
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// Name of the language file that needs to be included
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$language_file = 'group';
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require '../inc/global.inc.php';
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$this_section = SECTION_COURSES;
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$current_course_tool = TOOL_GROUP;
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// Notice for unauthorized people.
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api_protect_course_script(true);
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/* Libraries & settings */
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require_once api_get_path(LIBRARY_PATH).'groupmanager.lib.php';
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/* Constants & variables */
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$current_group = GroupManager :: get_group_properties(api_get_group_id());
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/* Header */
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$nameTools = get_lang('EditGroup');
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$interbreadcrumb[] = array ('url' => 'group.php', 'name' => get_lang('Groups'));
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$is_group_member = GroupManager :: is_tutor_of_group(api_get_user_id(), api_get_group_id());
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if (!api_is_allowed_to_edit(false,true) && !$is_group_member) {
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api_not_allowed(true);
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}
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/* FUNCTIONS */
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/**
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* List all users registered to the course
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*/
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function search_members_keyword($firstname, $lastname, $username, $official_code, $keyword) {
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if (api_strripos($firstname, $keyword) !== false || api_strripos($lastname, $keyword) !== false || api_strripos($username, $keyword) !== false || api_strripos($official_code, $keyword) !== false) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* function to sort users after getting the list in the db. Necessary because there are 2 or 3 queries. Called by usort()
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*/
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function sort_users($user_a, $user_b) {
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if (api_sort_by_first_name()) {
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$cmp = api_strcmp($user_a['firstname'], $user_b['firstname']);
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if ($cmp !== 0) {
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return $cmp;
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} else {
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$cmp = api_strcmp($user_a['lastname'], $user_b['lastname']);
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if ($cmp !== 0) {
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return $cmp;
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} else {
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return api_strcmp($user_a['username'], $user_b['username']);
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}
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}
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} else {
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$cmp = api_strcmp($user_a['lastname'], $user_b['lastname']);
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if ($cmp !== 0) {
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return $cmp;
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} else {
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$cmp = api_strcmp($user_a['firstname'], $user_b['firstname']);
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if ($cmp !== 0) {
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return $cmp;
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} else {
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return api_strcmp($user_a['username'], $user_b['username']);
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}
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}
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}
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}
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/**
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* Function to check the given max number of members per group
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*/
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function check_max_number_of_members($value) {
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$max_member_no_limit = $value['max_member_no_limit'];
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if ($max_member_no_limit == MEMBER_PER_GROUP_NO_LIMIT) {
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return true;
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}
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$max_member = $value['max_member'];
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return is_numeric($max_member);
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}
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/**
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* Function to check if the number of selected group members is valid
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*/
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function check_group_members($value) {
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if ($value['max_member_no_limit'] == MEMBER_PER_GROUP_NO_LIMIT) {
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return true;
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}
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if (isset($value['max_member']) && isset($value['group_members']) && $value['max_member'] < count($value['group_members'])) {
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return array ('group_members' => get_lang('GroupTooMuchMembers'));
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}
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return true;
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}
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/* MAIN CODE */
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// Build form
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$form = new FormValidator('group_edit');
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$form->addElement('header', '', $nameTools);
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$form->addElement('hidden', 'action');
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$form->addElement('hidden', 'referer');
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// Group name
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$form->add_textfield('name', get_lang('GroupName'));
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// Description
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$form->addElement('textarea', 'description', get_lang('Description'), array ('cols' => 50, 'rows' => 6));
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// Search Members of group
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//$form = new FormValidator('search_member', 'get', 'group_edit', '', null, false);
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//$renderer = & $form->defaultRenderer();
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//$renderer->setElementTemplate('<span>{element}</span> ');
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//$form->add_textfield('keyword', get_lang('GroupMembers'), false);
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//$form->addElement('style_submit_button', 'submit', get_lang('Search'), 'class="search"');
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// Getting all the users
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/*
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if (isset($_SESSION['id_session'])) {
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$complete_user_list = CourseManager :: get_user_list_from_course_code($_course['id'], true, $_SESSION['id_session']);
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$complete_user_list2 = CourseManager :: get_coach_list_from_course_code($_course['id'], $_SESSION['id_session']);
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$complete_user_list = array_merge($complete_user_list, $complete_user_list2);
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} else {
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$complete_user_list = CourseManager :: get_user_list_from_course_code($_course['id']);
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}
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foreach ($complete_user_list as $user_id => $o_course_user) {
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if ((isset ($_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($_GET['keyword'])) {
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$groups_name = GroupManager :: get_user_group_name($user_id);
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if ($is_western_name_order) {
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$temp[] = $o_course_user['firstname'];
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$temp[] = $o_course_user['lastname'];
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} else {
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$temp[] = $o_course_user['lastname'];
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$temp[] = $o_course_user['firstname'];
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}
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$temp[] = $o_course_user['role'];
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$temp[] = implode(', ', $groups_name); //Group
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$temp[] = $o_course_user['official_code'];
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}
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}*/
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$complete_user_list = GroupManager :: fill_groups_list($current_group['id']);
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usort($complete_user_list, 'sort_users');
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$possible_users = array();
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foreach ($complete_user_list as $index => $user) {
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$possible_users[$user['user_id']] = api_get_person_name($user['firstname'], $user['lastname']).' ('.$user['username'].')';
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}
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// Group tutors
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$group_tutor_list = GroupManager :: get_subscribed_tutors($current_group['id']);
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$selected_users = array();
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$selected_tutors = array();
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foreach ($group_tutor_list as $index => $user) {
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//$possible_users[$user['user_id']] = api_get_person_name($user['firstname'], .$user['lastname']);
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$selected_tutors[] = $user['user_id'];
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}
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$group_tutors_element = $form->addElement('advmultiselect', 'group_tutors', get_lang('GroupTutors'), $possible_users, 'style="width: 280px;"');
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$group_tutors_element->setElementTemplate('
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{javascript}
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<table{class}>
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<!-- BEGIN label_2 --><tr><th>{label_2}</th><!-- END label_2 -->
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<!-- BEGIN label_3 --><th> </th><th>{label_3}</th></tr><!-- END label_3 -->
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<tr>
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<td valign="top">{unselected}</td>
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<td align="center">{add}<br /><br />{remove}</td>
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<td valign="top">{selected}</td>
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</tr>
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</table>
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');
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$group_tutors_element->setButtonAttributes('add', array('class' => 'arrowr'));
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$group_tutors_element->setButtonAttributes('remove', array('class' => 'arrowl'));
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// Group members
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$group_member_list = GroupManager :: get_subscribed_users($current_group['id']);
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$selected_users = array ();
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foreach ($group_member_list as $index => $user) {
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//$possible_users[$user['user_id']] = api_get_person_name($user['firstname'], $user['lastname']);
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$selected_users[] = $user['user_id'];
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}
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// possible : number_groups_left > 0 and is group member
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$possible_users = array();
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foreach ($complete_user_list as $index => $user) {
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if( $user['number_groups_left'] >0 || in_array($user['user_id'],$selected_users) )
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$possible_users[$user['user_id']] = api_get_person_name($user['firstname'], $user['lastname']).' ('.$user['username'].')';
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}
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$group_members_element = $form->addElement('advmultiselect', 'group_members', get_lang('GroupMembers'), $possible_users, 'style="width: 280px;"');
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$group_members_element->setElementTemplate('
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{javascript}
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<table{class}>
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<!-- BEGIN label_2 --><tr><th>{label_2}</th><!-- END label_2 -->
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<!-- BEGIN label_3 --><th> </th><th>{label_3}</th></tr><!-- END label_3 -->
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<tr>
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<td valign="top">{unselected}</td>
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<td align="center">{add}<br /><br />{remove}</td>
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<td valign="top">{selected}</td>
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</tr>
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</table>');
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$group_members_element->setButtonAttributes('add', array('class' => 'arrowr'));
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$group_members_element->setButtonAttributes('remove', array('class' => 'arrowl'));
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$form->addFormRule('check_group_members');
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// Tutors: this has been replaced with the new tutors code
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//$tutors = GroupManager :: get_all_tutors();
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//$possible_tutors[0] = get_lang('GroupNoTutor');
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//foreach ($tutors as $index => $tutor)
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//{
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// $possible_tutors[$tutor['user_id']] = api_get_person_name($tutor['lastname'], $tutor['firstname']);
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//}
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//$group = array ();
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//$group[] = & $form->createElement('select', 'tutor_id', null, $possible_tutors);
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//$group[] = & $form->createElement('static', null, null, ' <a href="../user/user.php">'.get_lang('AddTutors').'</a>');
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//$form->addGroup($group, 'tutor_group', get_lang('GroupTutor'), '', false);
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// Members per group
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$form->addElement('radio', 'max_member_no_limit', get_lang('GroupLimit'), get_lang('NoLimit'), MEMBER_PER_GROUP_NO_LIMIT);
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$group = array();
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$group[] = & $form->createElement('radio', 'max_member_no_limit', null, get_lang('MaximumOfParticipants'), 1);
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$group[] = & $form->createElement('text', 'max_member', null, array('size' => 2));
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$group[] = & $form->createElement('static', null, null, get_lang('GroupPlacesThis'));
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$form->addGroup($group, 'max_member_group', null, '', false);
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$form->addRule('max_member_group', get_lang('InvalidMaxNumberOfMembers'), 'callback', 'check_max_number_of_members');
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// Self registration
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$group = array();
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$group[] = $form->createElement('checkbox', 'self_registration_allowed', get_lang('GroupSelfRegistration'), get_lang('GroupAllowStudentRegistration'), 1);
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$group[] = $form->createElement('checkbox', 'self_unregistration_allowed', null, get_lang('GroupAllowStudentUnregistration'), 1);
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$form->addGroup($group, '', Display::return_icon('user.png', get_lang('GroupSelfRegistration') , array(), ICON_SIZE_SMALL).' '.get_lang('GroupSelfRegistration'), '', false);
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// Documents settings
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$group = array();
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$group[] = $form->createElement('radio', 'doc_state', get_lang('GroupDocument'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
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$group[] = $form->createElement('radio', 'doc_state', null, get_lang('Public'), TOOL_PUBLIC);
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$group[] = $form->createElement('radio', 'doc_state', null, get_lang('Private'), TOOL_PRIVATE);
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$form->addGroup($group, '', Display::return_icon('folder.png', get_lang('GroupDocument') , array(), ICON_SIZE_SMALL).' '.get_lang('GroupDocument'), '', false);
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// Work settings
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$group = array();
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$group[] = $form->createElement('radio', 'work_state', get_lang('GroupWork'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
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$group[] = $form->createElement('radio', 'work_state', null, get_lang('Public'), TOOL_PUBLIC);
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$group[] = $form->createElement('radio', 'work_state', null, get_lang('Private'), TOOL_PRIVATE);
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$form->addGroup($group, '', Display::return_icon('work.png', get_lang('GroupWork') , array(), ICON_SIZE_SMALL).' '.get_lang('GroupWork'), '', false);
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// Calendar settings
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$group = array();
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$group[] = $form->createElement('radio', 'calendar_state', get_lang('GroupCalendar'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
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$group[] = $form->createElement('radio', 'calendar_state', null, get_lang('Public'), TOOL_PUBLIC);
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$group[] = $form->createElement('radio', 'calendar_state', null, get_lang('Private'), TOOL_PRIVATE);
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$form->addGroup($group, '', Display::return_icon('agenda.png', get_lang('GroupCalendar') , array(), ICON_SIZE_SMALL).' '.get_lang('GroupCalendar'), '', false);
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// Announcements settings
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$group = array();
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$group[] = $form->createElement('radio', 'announcements_state', get_lang('GroupAnnouncements'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
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$group[] = $form->createElement('radio', 'announcements_state', null, get_lang('Public'), TOOL_PUBLIC);
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$group[] = $form->createElement('radio', 'announcements_state', null, get_lang('Private'), TOOL_PRIVATE);
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$form->addGroup($group, '', Display::return_icon('announce.png', get_lang('GroupAnnouncements') , array(), ICON_SIZE_SMALL).' '.get_lang('GroupAnnouncements'), '', false);
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//Forum settings
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$group = array();
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$group[] = $form->createElement('radio', 'forum_state', get_lang('GroupForum'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
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$group[] = $form->createElement('radio', 'forum_state', null, get_lang('Public'), TOOL_PUBLIC);
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$group[] = $form->createElement('radio', 'forum_state', null, get_lang('Private'), TOOL_PRIVATE);
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$form->addGroup($group, '', Display::return_icon('forum.png', get_lang('GroupForum') , array(), ICON_SIZE_SMALL).' '.get_lang('GroupForum'), '', false);
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// Wiki settings
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$group = array();
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$group[] = $form->createElement('radio', 'wiki_state', get_lang('GroupWiki'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
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$group[] = $form->createElement('radio', 'wiki_state', null, get_lang('Public'), TOOL_PUBLIC);
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$group[] = $form->createElement('radio', 'wiki_state', null, get_lang('Private'), TOOL_PRIVATE);
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$form->addGroup($group, '', Display::return_icon('wiki.png', get_lang('GroupWiki') , array(), ICON_SIZE_SMALL).' '.get_lang('GroupWiki'), '', false);
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// Chat settings
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$group = array();
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$group[] = $form->createElement('radio', 'chat_state', get_lang('Chat'), get_lang('NotAvailable'), TOOL_NOT_AVAILABLE);
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$group[] = $form->createElement('radio', 'chat_state', null, get_lang('Public'), TOOL_PUBLIC);
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$group[] = $form->createElement('radio', 'chat_state', null, get_lang('Private'), TOOL_PRIVATE);
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$form->addGroup($group, '', Display::return_icon('chat.png', get_lang('Chat') , array(), ICON_SIZE_SMALL).' '.get_lang('Chat'), '', false);
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// submit button
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$form->addElement('style_submit_button', 'submit', get_lang('PropModify'), 'class="save"');
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if ($form->validate()) {
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$values = $form->exportValues();
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if ($values['max_member_no_limit'] == MEMBER_PER_GROUP_NO_LIMIT) {
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$max_member = MEMBER_PER_GROUP_NO_LIMIT;
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} else {
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$max_member = $values['max_member'];
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}
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$self_registration_allowed = isset($values['self_registration_allowed']) ? 1 : 0;
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$self_unregistration_allowed = isset($values['self_unregistration_allowed']) ? 1 : 0;
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GroupManager :: set_group_properties($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, $self_unregistration_allowed);
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// Storing the tutors (we first remove all the tutors and then add only those who were selected)
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GroupManager :: unsubscribe_all_tutors($current_group['id']);
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if (isset ($_POST['group_tutors']) && count($_POST['group_tutors']) > 0) {
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GroupManager :: subscribe_tutors($values['group_tutors'], $current_group['id']);
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}
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// Storing the users (we first remove all users and then add only those who were selected)
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GroupManager :: unsubscribe_all_users($current_group['id']);
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if (isset ($_POST['group_members']) && count($_POST['group_members']) > 0) {
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GroupManager :: subscribe_users($values['group_members'], $current_group['id']);
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}
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// Returning to the group area (note: this is inconsistent with the rest of chamilo)
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//var_dump(count($_POST['group_members']), $max_member, MEMBER_PER_GROUP_NO_LIMIT);
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$cat = GroupManager :: get_category_from_group($current_group['id']);
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if (isset($_POST['group_members']) && count($_POST['group_members']) > $max_member && $max_member != MEMBER_PER_GROUP_NO_LIMIT) {
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header('Location:group_edit.php?show_message='.get_lang('GroupTooMuchMembers'));
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} else {
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header('Location: '.$values['referer'].'?action=show_msg&msg='.get_lang('GroupSettingsModified').'&category='.$cat['id']);
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}
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}
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$defaults = $current_group;
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$defaults['group_members'] = $selected_users;
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$defaults['group_tutors'] = $selected_tutors;
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$action = isset($_GET['action']) ? $_GET['action'] : '';
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$defaults['action'] = $action;
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if ($defaults['maximum_number_of_students'] == MEMBER_PER_GROUP_NO_LIMIT) {
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$defaults['max_member_no_limit'] = MEMBER_PER_GROUP_NO_LIMIT;
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} else {
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$defaults['max_member_no_limit'] = 1;
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$defaults['max_member'] = $defaults['maximum_number_of_students'];
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}
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$referer = parse_url($_SERVER['HTTP_REFERER']);
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$referer = basename($referer['path']);
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if ($referer != 'group_space.php' && $referer != 'group.php') {
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$referer = 'group.php';
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}
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if (!empty($_GET['keyword']) && !empty($_GET['submit'])) {
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$keyword_name = Security::remove_XSS($_GET['keyword']);
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echo '<br/>'.get_lang('SearchResultsFor').' <span style="font-style: italic ;"> '.$keyword_name.' </span><br>';
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}
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Display :: display_header($nameTools, 'Group');
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?>
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<div class="actions">
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<a href="group_space.php"><?php echo Display::return_icon('back.png', get_lang('ReturnTo').' '.get_lang('GroupSpace'),'',ICON_SIZE_MEDIUM); ?></a>
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</div>
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<?php
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if (isset($_GET['show_message'])) {
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echo Display::display_error_message($_GET['show_message']);
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}
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$defaults['referer'] = $referer;
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$form->setDefaults($defaults);
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$form->display();
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/* FOOTER */
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Display :: display_footer();
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