public IHttpActionResult Save(RatingDto ratingDto)
        {
            if (!ratingDto.Validate())
            {
                return(Json(new ResponseMessage {
                    Code = 500, Error = "Data is not valid!"
                }));
            }
            ResponseMessage response = new ResponseMessage();

            if (_service.Save(ratingDto))
            {
                response.Code = 200;
                response.Body = "Rating is save.";
            }
            else
            {
                response.Code = 500;
                response.Body = "Rating is not save.";
            }

            return(Json(response));
        }