Modulteil.php

<?php
/**
 * Modulteil.php
 * Model class for Modulteile (table mvv_modulteil)
 *
 * 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 2 of
 * the License, or (at your option) any later version.
 *
 * @author      Peter Thienel <thienel@data-quest.de>
 * @license     http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
 * @category    Stud.IP
 * @since       3.5
 */

class Modulteil extends ModuleManagementModelTreeItem
{

    private $default_language;

    private $count_lvgruppen;

    protected static function configure($config = [])
    {
        $config['db_table'] = 'mvv_modulteil';

        $config['belongs_to']['modul'] = [
            'class_name'  => 'Modul',
            'foreign_key' => 'modul_id',
            'assoc_func'  => 'findCached',
        ];
        $config['has_and_belongs_to_many']['abschnitte'] = [
            'class_name'     => 'StgteilAbschnitt',
            'thru_table'     => 'mvv_modulteil_stgteilabschnitt',
            'thru_key'       => 'modulteil_id',
            'thru_assoc_key' => 'abschnitt_id',
            'on_delete'      => 'delete',
            'on_store'       => 'store'
        ];
        $config['has_many']['abschnitt_assignments'] = [
            'class_name' => 'ModulteilStgteilabschnitt',
            'order_by'   => 'ORDER BY fachsemester,mkdate',
            'on_delete'  => 'delete',
            'on_store'   => 'store'
        ];
        $config['has_one']['deskriptoren'] = [
            'class_name'        => 'ModulteilDeskriptor',
            'assoc_foreign_key' => 'modulteil_id',
            'on_delete'         => 'delete',
            'on_store'          => 'store'
        ];
        $config['has_and_belongs_to_many']['lvgruppen'] = [
            'class_name'     => 'Lvgruppe',
            'thru_table'     => 'mvv_lvgruppe_modulteil',
            'thru_key'       => 'modulteil_id',
            'thru_assoc_key' => 'lvgruppe_id',
            'order_by'       => 'ORDER BY position,mkdate',
            'on_delete'      => 'delete',
            'on_store'       => 'store'
        ];
        $config['has_many']['lvgruppen_assignments'] = [
            'class_name' => 'LvgruppeModulteil',
            'order_by'   => 'ORDER BY position,mkdate',
            'on_delete'  => 'delete',
            'on_store'   => 'store'
        ];
        $config['has_many']['languages'] = [
            'class_name'        => 'ModulteilLanguage',
            'assoc_foreign_key' => 'modulteil_id',