public HttpResponseMessage Save(string importInvoceJson, string invoiceDetailsJson)
        {
            string invoiceId  = "";
            string errMessage = "";
            BuyImportinvoiceContract invoiceDTO = JsonConvert.DeserializeObject <BuyImportinvoiceContract>(importInvoceJson);

            BuyImportinvoiceDetailContract[] invoiceDetailDTOs = JsonConvert.DeserializeObject <BuyImportinvoiceDetailContract[]>(invoiceDetailsJson);
            SqlTransaction tran = DataProvider.beginTrans();

            try
            {
                businessRule.RegistInstants(invoiceDTO);
                if (invoiceDTO.Id > 0)
                {
                    invoiceId = invoiceDT.Update(invoiceDTO, tran);
                }
                else
                {
                    businessRule.RegistRule("Insert");
                    if (businessRule.CheckRules(out errMessage))
                    {
                        invoiceId = invoiceDT.Insert(invoiceDTO, tran);
                    }
                    else
                    {
                        return(handleBRFailed(errMessage, tran));
                    }
                }
                if (Converter.ToInt32(invoiceId) > 0)
                {
                    foreach (BuyImportinvoiceDetailContract invoiceDetailDTO in invoiceDetailDTOs)
                    {
                        invoiceDetailDTO.Importinvoiceid = Converter.ToInt32(invoiceId);
                        invoiceDetailDT.Insert(invoiceDetailDTO, tran);
                        StoreModel.Import(invoiceDTO, invoiceDetailDTO, tran);
                    }
                }
                DataProvider.CommitTrans(tran);
            }
            catch (Exception e)
            {
                DataProvider.RollbackTrans(tran);
                ExceptionHandler.Log(e);
            }
            return(Request.CreateResponse <string>(HttpStatusCode.OK, errMessage != string.Empty ? errMessage : invoiceId));
        }
        public HttpResponseMessage Save(string buyimportinvoiceJson)
        {
            string errMessage = string.Empty;

            try
            { BuyImportinvoiceContract buyimportinvoice = JsonConvert.DeserializeObject <BuyImportinvoiceContract>(buyimportinvoiceJson);
              businessRule.RegistInstants(buyimportinvoice);
              if (buyimportinvoice.Id == 0)
              {
                  businessRule.RegistRule("Insert");
                  if (businessRule.CheckRules(out errMessage))
                  {
                      return(Request.CreateResponse <string>(HttpStatusCode.OK, dta.Insert(buyimportinvoice)));
                  }
                  else
                  {
                      return(handleBRFailed(errMessage));
                  }
              }
              else
              {
                  businessRule.RegistRule("Update");
                  if (businessRule.CheckRules(out errMessage))
                  {
                      return(Request.CreateResponse <string>(HttpStatusCode.OK, dta.Update(buyimportinvoice)));
                  }
                  else
                  {
                      return(handleBRFailed(errMessage));
                  }
              } }
            catch (Exception e)
            {
                ExceptionHandler.Log(e);
                return(Request.CreateResponse <string>(HttpStatusCode.OK, "Có lỗi xảy ra trên chương trình."));
            }
        }