// PUT api/dishsizeprice/
        public HttpResponseMessage Put([FromBody] DishSizePrice value, string filter = null)
        {
            ServerValidationInfo vi = null;

            value.UpdateDate = DateTime.Now;
            if (!ModelState.IsValid)
            {
                vi = new ServerValidationInfo(ModelState);
            }
            if (filter == null)
            {
                context.Entry(value).State = System.Data.EntityState.Modified;
            }
            else
            {
                var old = context.DishSizePrices.SingleOrDefault(queryBuider.CreateWhere(filter));
                old.Id             = value.Id;
                old.SizeId         = value.SizeId;
                old.DishId         = value.DishId;
                old.ExtraPrice     = value.ExtraPrice;
                old.AvailableCount = value.AvailableCount;
                old.UpdateDate     = value.UpdateDate;
                old.UpdateUserId   = value.UpdateUserId;
            }
            if (vi != null && vi.ContainsError)
            {
                return(Request.CreateResponse(HttpStatusCode.BadRequest, vi));
            }
            var result = context.SaveChanges() > 0;

            return(Request.CreateResponse(HttpStatusCode.OK, result));
        }
        // POST api/dishsizeprice/
        public HttpResponseMessage Post([FromBody] DishSizePrice value)
        {
            ServerValidationInfo vi = null;

            value.UpdateDate = DateTime.Now;
            if (!ModelState.IsValid)
            {
                vi = new ServerValidationInfo(ModelState);
            }
            if (vi != null && vi.ContainsError)
            {
                return(Request.CreateResponse(HttpStatusCode.BadRequest, vi));
            }
            context.Entry(value).State = System.Data.EntityState.Added;
            context.SaveChanges();

            return(Request.CreateResponse(HttpStatusCode.OK, value));
        }