protected function GetRatingService()
    {
        $oRatingServiceItem = null;
        if (!empty($this->oModuleConfig->fieldPkgShopRatingServiceId)) {
            $oRatingServiceItem = TdbPkgShopRatingService::GetNewInstance($this->oModuleConfig->fieldPkgShopRatingServiceId);
        }

        return $oRatingServiceItem;
    }