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- <?php
- // This file is part of Moodle - http://moodle.org/
- //
- // Moodle 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 3 of the License, or
- // (at your option) any later version.
- //
- // Moodle is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU General Public License for more details.
- //
- // You should have received a copy of the GNU General Public License
- // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
- /**
- * The main group management user interface.
- *
- * @copyright 2006 The Open University, N.D.Freear AT open.ac.uk, J.White AT open.ac.uk
- * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- * @package core_group
- */
- require_once('../config.php');
- require_once('lib.php');
- $courseid = required_param('id', PARAM_INT);
- $groupid = optional_param('group', false, PARAM_INT);
- $userid = optional_param('user', false, PARAM_INT);
- $action = groups_param_action();
- // Support either single group= parameter, or array groups[]
- if ($groupid) {
- $groupids = array($groupid);
- } else {
- $groupids = optional_param_array('groups', array(), PARAM_INT);
- }
- $singlegroup = (count($groupids) == 1);
- $returnurl = $CFG->wwwroot.'/group/index.php?id='.$courseid;
- // Get the course information so we can print the header and
- // check the course id is valid
- $course = $DB->get_record('course', array('id'=>$courseid), '*', MUST_EXIST);
- $url = new moodle_url('/group/index.php', array('id'=>$courseid));
- if ($userid) {
- $url->param('user', $userid);
- }
- if ($groupid) {
- $url->param('group', $groupid);
- }
- $PAGE->set_url($url);
- // Make sure that the user has permissions to manage groups.
- require_login($course);
- $context = context_course::instance($course->id);
- require_capability('moodle/course:managegroups', $context);
- $PAGE->requires->js('/group/clientlib.js');
- // Check for multiple/no group errors
- if (!$singlegroup) {
- switch($action) {
- case 'ajax_getmembersingroup':
- case 'showgroupsettingsform':
- case 'showaddmembersform':
- case 'updatemembers':
- print_error('errorselectone', 'group', $returnurl);
- }
- }
- switch ($action) {
- case false: //OK, display form.
- break;
- case 'ajax_getmembersingroup':
- $roles = array();
- if ($groupmemberroles = groups_get_members_by_role($groupids[0], $courseid, 'u.id, ' . get_all_user_name_fields(true, 'u'))) {
- foreach($groupmemberroles as $roleid=>$roledata) {
- $shortroledata = new stdClass();
- $shortroledata->name = $roledata->name;
- $shortroledata->users = array();
- foreach($roledata->users as $member) {
- $shortmember = new stdClass();
- $shortmember->id = $member->id;
- $shortmember->name = fullname($member, true);
- $shortroledata->users[] = $shortmember;
- }
- $roles[] = $shortroledata;
- }
- }
- echo json_encode($roles);
- die; // Client side JavaScript takes it from here.
- case 'deletegroup':
- if (count($groupids) == 0) {
- print_error('errorselectsome','group',$returnurl);
- }
- $groupidlist = implode(',', $groupids);
- redirect(new moodle_url('/group/delete.php', array('courseid'=>$courseid, 'groups'=>$groupidlist)));
- break;
- case 'showcreateorphangroupform':
- redirect(new moodle_url('/group/group.php', array('courseid'=>$courseid)));
- break;
- case 'showautocreategroupsform':
- redirect(new moodle_url('/group/autogroup.php', array('courseid'=>$courseid)));
- break;
- case 'showimportgroups':
- redirect(new moodle_url('/group/import.php', array('id'=>$courseid)));
- break;
- case 'showgroupsettingsform':
- redirect(new moodle_url('/group/group.php', array('courseid'=>$courseid, 'id'=>$groupids[0])));
- break;
- case 'updategroups': //Currently reloading.
- break;
- case 'removemembers':
- break;
- case 'showaddmembersform':
- redirect(new moodle_url('/group/members.php', array('group'=>$groupids[0])));
- break;
- case 'updatemembers': //Currently reloading.
- break;
- default: //ERROR.
- print_error('unknowaction', '', $returnurl);
- break;
- }
- // Print the page and form
- $strgroups = get_string('groups');
- $strparticipants = get_string('participants');
- /// Print header
- $PAGE->set_title($strgroups);
- $PAGE->set_heading($course->fullname);
- $PAGE->set_pagelayout('standard');
- echo $OUTPUT->header();
- // Add tabs
- $currenttab = 'groups';
- require('tabs.php');
- $disabled = 'disabled="disabled"';
- // Some buttons are enabled if single group selected.
- $showaddmembersform_disabled = $singlegroup ? '' : $disabled;
- $showeditgroupsettingsform_disabled = $singlegroup ? '' : $disabled;
- $deletegroup_disabled = count($groupids) > 0 ? '' : $disabled;
- echo $OUTPUT->heading(format_string($course->shortname, true, array('context' => $context)) .' '.$strgroups, 3);
- echo '<form id="groupeditform" action="index.php" method="post">'."\n";
- echo '<div>'."\n";
- echo '<input type="hidden" name="id" value="' . $courseid . '" />'."\n";
- echo html_writer::start_tag('div', array('class' => 'groupmanagementtable boxaligncenter'));
- echo html_writer::start_tag('div', array('class' => 'groups'));
- echo '<p><label for="groups"><span id="groupslabel">'.get_string('groups').':</span><span id="thegrouping"> </span></label></p>'."\n";
- $onchange = 'M.core_group.membersCombo.refreshMembers();';
- echo '<select name="groups[]" multiple="multiple" id="groups" size="15" class="select" onchange="'.$onchange.'">'."\n";
- $groups = groups_get_all_groups($courseid);
- $selectedname = ' ';
- $preventgroupremoval = array();
- if ($groups) {
- // Print out the HTML
- foreach ($groups as $group) {
- $select = '';
- $usercount = $DB->count_records('groups_members', array('groupid'=>$group->id));
- $groupname = format_string($group->name).' ('.$usercount.')';
- if (in_array($group->id,$groupids)) {
- $select = ' selected="selected"';
- if ($singlegroup) {
- // Only keep selected name if there is one group selected
- $selectedname = $groupname;
- }
- }
- if (!empty($group->idnumber) && !has_capability('moodle/course:changeidnumber', $context)) {
- $preventgroupremoval[$group->id] = true;
- }
- echo "<option value=\"{$group->id}\"$select title=\"$groupname\">$groupname</option>\n";
- }
- } else {
- // Print an empty option to avoid the XHTML error of having an empty select element
- echo '<option> </option>';
- }
- echo '</select>'."\n";
- echo '<p><input type="submit" name="act_updatemembers" id="updatemembers" value="'
- . get_string('showmembersforgroup', 'group') . '" /></p>'."\n";
- echo '<p><input type="submit" '. $showeditgroupsettingsform_disabled . ' name="act_showgroupsettingsform" id="showeditgroupsettingsform" value="'
- . get_string('editgroupsettings', 'group') . '" /></p>'."\n";
- echo '<p><input type="submit" '. $deletegroup_disabled . ' name="act_deletegroup" id="deletegroup" value="'
- . get_string('deleteselectedgroup', 'group') . '" /></p>'."\n";
- echo '<p><input type="submit" name="act_showcreateorphangroupform" id="showcreateorphangroupform" value="'
- . get_string('creategroup', 'group') . '" /></p>'."\n";
- echo '<p><input type="submit" name="act_showautocreategroupsform" id="showautocreategroupsform" value="'
- . get_string('autocreategroups', 'group') . '" /></p>'."\n";
- echo '<p><input type="submit" name="act_showimportgroups" id="showimportgroups" value="'
- . get_string('importgroups', 'core_group') . '" /></p>'."\n";
- echo html_writer::end_tag('div');
- echo html_writer::start_tag('div', array('class' => 'members'));
- echo '<p><label for="members"><span id="memberslabel">'.
- get_string('membersofselectedgroup', 'group').
- ' </span><span id="thegroup">'.$selectedname.'</span></label></p>'."\n";
- //NOTE: the SELECT was, multiple="multiple" name="user[]" - not used and breaks onclick.
- echo '<select name="user" id="members" size="15" class="select"'."\n";
- echo ' onclick="window.status=this.options[this.selectedIndex].title;" onmouseout="window.status=\'\';">'."\n";
- $member_names = array();
- $atleastonemember = false;
- if ($singlegroup) {
- if ($groupmemberroles = groups_get_members_by_role($groupids[0], $courseid, 'u.id, ' . get_all_user_name_fields(true, 'u'))) {
- foreach($groupmemberroles as $roleid=>$roledata) {
- echo '<optgroup label="'.s($roledata->name).'">';
- foreach($roledata->users as $member) {
- echo '<option value="'.$member->id.'">'.fullname($member, true).'</option>';
- $atleastonemember = true;
- }
- echo '</optgroup>';
- }
- }
- }
- if (!$atleastonemember) {
- // Print an empty option to avoid the XHTML error of having an empty select element
- echo '<option> </option>';
- }
- echo '</select>'."\n";
- echo '<p><input type="submit" ' . $showaddmembersform_disabled . ' name="act_showaddmembersform" '
- . 'id="showaddmembersform" value="' . get_string('adduserstogroup', 'group'). '" /></p>'."\n";
- echo html_writer::end_tag('div');
- echo html_writer::end_tag('div');
- //<input type="hidden" name="rand" value="om" />
- echo '</div>'."\n";
- echo '</form>'."\n";
- $PAGE->requires->js_init_call('M.core_group.init_index', array($CFG->wwwroot, $courseid));
- $PAGE->requires->js_init_call('M.core_group.groupslist', array($preventgroupremoval));
- echo $OUTPUT->footer();
- /**
- * Returns the first button action with the given prefix, taken from
- * POST or GET, otherwise returns false.
- * @see /lib/moodlelib.php function optional_param().
- * @param string $prefix 'act_' as in 'action'.
- * @return string The action without the prefix, or false if no action found.
- */
- function groups_param_action($prefix = 'act_') {
- $action = false;
- //($_SERVER['QUERY_STRING'] && preg_match("/$prefix(.+?)=(.+)/", $_SERVER['QUERY_STRING'], $matches)) { //b_(.*?)[&;]{0,1}/
- if ($_POST) {
- $form_vars = $_POST;
- }
- elseif ($_GET) {
- $form_vars = $_GET;
- }
- if ($form_vars) {
- foreach ($form_vars as $key => $value) {
- if (preg_match("/$prefix(.+)/", $key, $matches)) {
- $action = $matches[1];
- break;
- }
- }
- }
- if ($action && !preg_match('/^\w+$/', $action)) {
- $action = false;
- print_error('unknowaction');
- }
- ///if (debugging()) echo 'Debug: '.$action;
- return $action;
- }
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