public static function getSettings($param = null)
 {
     $ret = parent::getSettings($param);
     $ret['showDirectoryClass'] = 'Kwc_Directories_Item_Directory_Component';
     // nur für form
     $ret['hideDirectoryClasses'] = array();
     return $ret;
 }
 public function getSelect()
 {
     $ret = parent::getSelect();
     if (!$ret) {
         return null;
     }
     $ret->where('IF(ISNULL(end_date), start_date, end_date) < NOW()');
     return $ret;
 }