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Code Editor : ajax.php

<?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/>.

/**
 * This file processes AJAX enrolment actions and returns JSON for the cohort plugin
 *
 * The general idea behind this file is that any errors should throw exceptions
 * which will be returned and acted upon by the calling AJAX script.
 *
 * @package    enrol_cohort
 * @copyright  2011 Sam Hemelryk
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

define('AJAX_SCRIPT', true);

require('../../config.php');
require_once($CFG->dirroot.'/enrol/locallib.php');
require_once($CFG->dirroot.'/enrol/cohort/locallib.php');
require_once($CFG->dirroot.'/group/lib.php');

// Must have the sesskey.
$id      = required_param('id', PARAM_INT); // course id
$action  = required_param('action', PARAM_ALPHANUMEXT);

$PAGE->set_url(new moodle_url('/enrol/cohort/ajax.php', array('id'=>$id, 'action'=>$action)));

$course = $DB->get_record('course', array('id'=>$id), '*', MUST_EXIST);
$context = context_course::instance($course->id, MUST_EXIST);

if ($course->id == SITEID) {
    throw new moodle_exception('invalidcourse');
}

require_login($course);
require_capability('moodle/course:enrolreview', $context);
require_sesskey();

if (!enrol_is_enabled('cohort')) {
    // This should never happen, no need to invent new error strings.
    throw new enrol_ajax_exception('errorenrolcohort');
}

echo $OUTPUT->header(); // Send headers.

$manager = new course_enrolment_manager($PAGE, $course);

$outcome = new stdClass();
$outcome->success = true;
$outcome->response = new stdClass();
$outcome->error = '';

switch ($action) {
    case 'getassignable':
        $otheruserroles = optional_param('otherusers', false, PARAM_BOOL);
        $outcome->response = array_reverse($manager->get_assignable_roles($otheruserroles), true);
        break;
    case 'getdefaultcohortrole': //TODO: use in ajax UI MDL-24280
        $cohortenrol = enrol_get_plugin('cohort');
        $outcome->response = $cohortenrol->get_config('roleid');
        break;
    case 'getcohorts':
        require_capability('moodle/course:enrolconfig', $context);
        $offset = optional_param('offset', 0, PARAM_INT);
        $search  = optional_param('search', '', PARAM_RAW);
        $outcome->response = enrol_cohort_search_cohorts($manager, $offset, 25, $search);
        // Some browsers reorder collections by key.
        $outcome->response['cohorts'] = array_values($outcome->response['cohorts']);
        break;
    case 'enrolcohort':
        require_capability('moodle/course:enrolconfig', $context);
        require_capability('enrol/cohort:config', $context);
        $roleid = required_param('roleid', PARAM_INT);
        $cohortid = required_param('cohortid', PARAM_INT);

$roles = $manager->get_assignable_roles();
        if (!enrol_cohort_can_view_cohort($cohortid) || !array_key_exists($roleid, $roles)) {
            throw new enrol_ajax_exception('errorenrolcohort');
        }
        $enrol = enrol_get_plugin('cohort');
        $enrol->add_instance($manager->get_course(), array('customint1' => $cohortid, 'roleid' => $roleid));
        $trace = new null_progress_trace();
        enrol_cohort_sync($trace, $manager->get_course()->id);
        $trace->finished();
        break;
    case 'enrolcohortusers':
        //TODO: this should be moved to enrol_manual, see MDL-35618.
        require_capability('enrol/manual:enrol', $context);
        $roleid = required_param('roleid', PARAM_INT);
        $cohortid = required_param('cohortid', PARAM_INT);

$result = enrol_cohort_enrol_all_users($manager, $cohortid, $roleid);
        if ($result === false) {
            throw new enrol_ajax_exception('errorenrolcohortusers');
        }

$outcome->success = true;
        $outcome->response->users = $result;
        $outcome->response->title = get_string('success');
        $outcome->response->message = get_string('enrollednewusers', 'enrol', $result);
        $outcome->response->yesLabel = get_string('ok');
        break;
    default:
        throw new enrol_ajax_exception('unknowajaxaction');
}

echo json_encode($outcome);
die();

${this.title}

Code Editor : ajax.php