<?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/>.

/**
 * An abstract factory class for loading records from the database.
 *
 * @package    mod_scheduler
 * @copyright  2014 Henning Bostelmann and others (see README.txt)
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

namespace mod_scheduler\model;

/**
 * An abstract factory class for loading records from the database.
 *
 * @copyright  2014 Henning Bostelmann and others (see README.txt)
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
abstract class mvc_model_factory {

    /**
     * Create a new instance of a record, with no data.
     *
     * @return mvc_model
     */
    abstract public function create();

    /**
     * Create a new record by loading it from the database.
     *
     * @param int $id the id of the record to load
     * @return mvc_model
     */
    public function create_from_id($id) {
        $new = $this->create();
        $new->load($id);
        return $new;
    }

}
