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// This file is part of Moodle -
// 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
// 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 <>.
* Cohort related management functions, this file needs to be included manually.
* @package moodlecore
* @subpackage cohort
* @copyright 2010 Petr Skoda (
* @license GNU GPL v3 or later
$id = required_param('id', PARAM_INT);
$cohort = $DB->get_record('cohort', array('id'=>$id), '*', MUST_EXIST);
$context = get_context_instance_by_id($cohort->contextid, MUST_EXIST);
require_capability('moodle/cohort:assign', $context);
$PAGE->set_url('/cohort/assign.php', array('id'=>$id));
$returnurl = new moodle_url('/cohort/index.php', array('contextid'=>$cohort->contextid));
if (!empty($cohort->component)) {
// we can not manually edit cohorts that were created by external systems, sorry
if (optional_param('cancel', false, PARAM_BOOL)) {
if ($context->contextlevel == CONTEXT_COURSECAT) {
$category = $DB->get_record('course_categories', array('id'=>$context->instanceid), '*', MUST_EXIST);
$PAGE->navbar->add($category->name, new moodle_url('/course/index.php', array('categoryedit'=>'1')));
$PAGE->navbar->add(get_string('cohorts', 'cohort'), new moodle_url('/cohort/', array('contextid'=>$context->id)));
$PAGE->navbar->add(get_string('assign', 'cohort'));
$PAGE->set_title(get_string('cohort:assign', 'cohort'));
echo $OUTPUT->header();
echo $OUTPUT->heading(get_string('assignto', 'cohort', format_string($cohort->name)));
// Get the user_selector we will need.
$potentialuserselector = new cohort_candidate_selector('addselect', array('cohortid'=>$cohort->id));
$existinguserselector = new cohort_existing_selector('removeselect', array('cohortid'=>$cohort->id));
// Process incoming user assignments to the cohort
if (optional_param('add', false, PARAM_BOOL) && confirm_sesskey()) {
$userstoassign = $potentialuserselector->get_selected_users();
if (!empty($userstoassign)) {
foreach ($userstoassign as $adduser) {
// no duplicates please
if (!$DB->record_exists('cohort_members', array('cohortid'=>$cohort->id, 'userid'=>$adduser->id))) {
cohort_add_member($cohort->id, $adduser->id);
// Process removing user assignments to the cohort
if (optional_param('remove', false, PARAM_BOOL) && confirm_sesskey()) {
$userstoremove = $existinguserselector->get_selected_users();
if (!empty($userstoremove)) {
foreach ($userstoremove as $removeuser) {
cohort_remove_member($cohort->id, $removeuser->id);
// Print the form.
<form id="assignform" method="post" action="<?php echo $PAGE->url ?>"><div>
<input type="hidden" name="sesskey" value="<?php echo sesskey() ?>" />
<table summary="" class="generaltable generalbox boxaligncenter" cellspacing="0">
<td id="existingcell">
<p><label for="removeselect"><?php print_string('currentusers', 'cohort'); ?></label></p>
<?php $existinguserselector->display() ?>
<td id="buttonscell">
<div id="addcontrols">
<input name="add" id="add" type="submit" value="<?php echo $OUTPUT->larrow().'&nbsp;'.s(get_string('add')); ?>" title="<?php p(get_string('add')); ?>" /><br />
<div id="removecontrols">
<input name="remove" id="remove" type="submit" value="<?php echo s(get_string('remove')).'&nbsp;'.$OUTPUT->rarrow(); ?>" title="<?php p(get_string('remove')); ?>" />
<td id="potentialcell">
<p><label for="addselect"><?php print_string('potusers', 'cohort'); ?></label></p>
<?php $potentialuserselector->display() ?>
<tr><td colspan="3" id='backcell'>
<input type="submit" name="cancel" value="<?php p(get_string('backtocohorts', 'cohort')); ?>" />
echo $OUTPUT->footer();
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