public HttpResponseMessage Put(HttpRequestMessage request, WarrantyViewModel warrantyVm) { return(CreateHttpResponse(request, () => { HttpResponseMessage response = null; if (!ModelState.IsValid) { request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState); } else { var warrantyDb = _warrantyService.GetByID(warrantyVm.ID); warrantyDb.UpdateWarranty(warrantyVm); _warrantyService.Update(warrantyDb); _warrantyService.SaveChanges(); response = request.CreateResponse(HttpStatusCode.OK); } return response; })); }