public HttpResponseMessage Create(HttpRequestMessage request, ProductQuantityViewModel productQuantityVm) { if (ModelState.IsValid) { var newQuantity = new ProductQuantity(); var identity = (ClaimsIdentity)User.Identity; IEnumerable <Claim> claims = identity.Claims; try { if (_productQuantityService.CheckExist(productQuantityVm.ProductId, productQuantityVm.SizeId, productQuantityVm.ColorId)) { return(request.CreateErrorResponse(HttpStatusCode.BadRequest, "Màu sắc kích thước cho sản phẩm này đã tồn tại")); } else { newQuantity.UpdateProductQuantity(productQuantityVm); _productQuantityService.Add(newQuantity); _productQuantityService.Save(); Log log = new Log() { AppUserId = claims.FirstOrDefault().Value, Content = Notification.CREATE_PRODUCTQUANTITY, Created = DateTime.Now }; _logService.Create(log); _logService.Save(); return(request.CreateResponse(HttpStatusCode.OK, productQuantityVm)); } } catch (Exception dex) { return(request.CreateErrorResponse(HttpStatusCode.BadRequest, dex.Message)); } } else { return(request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState)); } }