edit_form.php

<?php
/**
 * ELIS(TM): Enterprise Learning Intelligence Suite
 * Copyright (C) 2008-2016 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) 2008-2016 Remote Learner.net Inc (http://www.remote-learner.net)
 *
 */

defined('MOODLE_INTERNAL') || die();

require_once($CFG->libdir.'/formslib.php');

class enrol_elis_edit_form extends moodleform {

    function definition() {
        $mform = $this->_form;

        list($instance, $plugin, $context) = $this->_customdata;

        $mform->addElement('header', 'header', get_string('pluginname', 'enrol_manual'));

        $mform->addElement('advcheckbox', enrol_elis_plugin::ENROL_FROM_COURSE_CATALOG_DB, get_string(enrol_elis_plugin::ENROL_FROM_COURSE_CATALOG_CONFIG, 'enrol_elis'));
        $mform->setDefault(enrol_elis_plugin::ENROL_FROM_COURSE_CATALOG_DB, $plugin->get_config(enrol_elis_plugin::ENROL_FROM_COURSE_CATALOG_CONFIG));
        $mform->addElement('advcheckbox', enrol_elis_plugin::UNENROL_FROM_COURSE_CATALOG_DB, get_string(enrol_elis_plugin::UNENROL_FROM_COURSE_CATALOG_CONFIG, 'enrol_elis'));
        $mform->setDefault(enrol_elis_plugin::UNENROL_FROM_COURSE_CATALOG_DB, $plugin->get_config(enrol_elis_plugin::UNENROL_FROM_COURSE_CATALOG_CONFIG));

        if ($instance->id) {
            $roles = get_default_enrol_roles($context, $instance->roleid);
        } else {
            $roles = get_default_enrol_roles($context, $plugin->get_config('roleid'));
        }
        $mform->addElement('select', 'roleid', get_string('defaultrole', 'role'), $roles);
        $mform->setDefault('roleid', $plugin->get_config('roleid'));

        $mform->addElement('hidden', 'courseid');
        $mform->setType('courseid', PARAM_INT);

        $this->add_action_buttons(true, ($instance->id ? null : get_string('addinstance', 'enrol')));

        $this->set_data($instance);
    }
}