protected function _getDefaultLanguageIdentity()
 {
     if (null === self::$_defaultLanguageIdentity) {
         self::$_defaultLanguageIdentity = $this->getFromDb()->select()->from('se_languages', 'language_id')->where('language_default = ?', 1)->limit(1)->order('language_id ASC')->query()->fetchColumn(0);
         if (!self::$_defaultLanguageIdentity) {
             self::$_defaultLanguageIdentity = false;
         }
     }
     return self::$_defaultLanguageIdentity;
 }