addinstance.php

<?php
/**
 * ELIS(TM): Enterprise Learning Intelligence Suite
 * Copyright (C) 2008-2014 Remote-Learner.net Inc (http://www.remote-learner.net)
 *
 * 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 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @package    enrol_elis
 * @author     Remote-Learner.net Inc
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * @copyright  (C) 2008-2014 Remote-Learner.net Inc (http://www.remote-learner.net)
 *
 */

// based on /enrol/guest/addinstance.php

require_once('../../config.php');

global $DB;

$elisprogramexists =  file_exists($CFG->dirroot.'/local/elisprogram/lib/setup.php') &&
        $DB->record_exists('config_plugins', array('plugin' => 'local_elisprogram', 'name' => 'version'));

if (!$elisprogramexists) {
    print_error(get_string('missing_elisprogram_dependency', 'enrol_elis'));
}
require('../../local/elisprogram/lib/setup.php');

$id = required_param('id', PARAM_INT);

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

require_login($course);
require_capability('enrol/elis:config', $context);
require_sesskey();

$enrol = enrol_get_plugin('guest');

if ($enrol->get_newinstance_link($course->id)) {
    $enrol->add_default_instance($course);
}

redirect(new moodle_url('/enrol/instances.php', array('id'=>$course->id)));