public function getDeliveryThemeIdFromDb($deliveryId)
    {
        try {
            $delivery = new core_kernel_classes_Resource($deliveryId);
            $property = $delivery->getProperty(static::DELIVERY_THEME_ID_URI);

            return (string)$delivery->getOnePropertyValue($property);
        } catch (common_exception_Error $e) {
            return '';
        }
    }