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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/>.

/**
 * Admin settings for the multichoice question type.
 *
 * @package   qtype_multichoice
 * @copyright  2015 onwards Nadav Kavalerchik
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

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

/**
 * Admin settings class for the multichoice question type method.
 *
 * Just so we can lazy-load the numbering style choices.
 *
 * @copyright  2015 onwards Nadav Kavalerchik
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class qtype_multichoice_admin_setting_answernumbering extends admin_setting_configselect {

/**
     * This function may be used in ancestors for lazy loading of choices
     *
     * Override this method if loading of choices is expensive, such
     * as when it requires multiple db requests.
     *
     * @return bool true if loaded, false if error
     */
    public function load_choices() {
        global $CFG;

if (is_array($this->choices)) {
            return true;
        }

require_once($CFG->dirroot . '/question/type/multichoice/questiontype.php');
        $this->choices = qtype_multichoice::get_numbering_styles();

return true;
    }
}