public RatingAPIViewModel CreateRatingProduct(RatingAPIViewModel rating)
        {
            var RatingProductE = rating.ToEntity();

            RatingProductE.UserId = null;
            this.Create(RatingProductE);
            return(new RatingAPIViewModel(RatingProductE));
        }
        public RatingAPIViewModel UpdateRatingProduct(RatingAPIViewModel rating)
        {
            var ratingE = Repository.FirstOrDefault(c => c.Id == rating.Id);

            if (ratingE != null)
            {
                var ratingET = rating.ToEntity();
                Repository.Edit(ratingET);
                Repository.Save();
                rating = new RatingAPIViewModel(ratingET);
                return(rating);
            }
            return(null);
        }