Exemplo n.º 1
0
        /// <summary>
        /// Add new order
        /// </summary>
        /// <param name="cartList">List of product</param>
        /// <param name="customerUserId">If add for customer in DB, the ID of user of customer</param>
        /// <param name="inputCustomer">If add for new customer</param>
        /// <param name="staffUserId">Adding statff user id</param>
        /// <param name="deposit">Deposit</param>
        /// <param name="deliveryDate">Delivery Date</param>
        /// <returns></returns>
        public bool AddOrder(List<CartViewModel> cartList, int? customerUserId, CustomerViewModel inputCustomer, int staffUserId, int deposit, DateTime deliveryDate, string orderNote)
        {
            OrderViewModel orderViewModel = MakeOrderViewModel(cartList, customerUserId, null);
            if (orderViewModel == null)
            {
                return false;
            }
            DbContextTransaction contextTransaction = db.Database.BeginTransaction();
            // Add order
            Order order = new Order();
            order = orderViewModel.Order;
            DateTime now = DateTime.Now;
            order.ApproveTime = now;
            order.CreateTime = now;
            order.OrderStatus = 2;
            order.PlanDeliveryTime = deliveryDate;
            order.DepositAmount = deposit;
            order.StaffApproveUserId = staffUserId;
            order.OrderNote = orderNote;

            // Get current identity of Order table
            var currentOrderId = db.Database.SqlQuery<decimal>("SELECT IDENT_CURRENT('Orders')").FirstOrDefault();
            String orderCode = "O" + now.ToString("yyyyMMdd") + (((currentOrderId + 1) % 10000)).ToString(new string('0', 4));
            order.OrderCode = orderCode;

            // Customer
            // Exist User
            if (customerUserId != null && inputCustomer == null)
            {
                order.CustomerUserId = customerUserId;
            }
            // New User
            else if (customerUserId == null && inputCustomer != null)
            {
                //Add customer
                User checkUser = db.Users.FirstOrDefault(m => m.Username == inputCustomer.Username ||
                    m.Email == inputCustomer.CustomerEmail);
                Customer checkCustomer =
                    db.Customers.FirstOrDefault(
                        m =>
                            m.CustomerAddress == inputCustomer.CustomerAddress ||
                            m.CustomerPhoneNumber == inputCustomer.CustomerPhoneNumber ||
                            m.TaxCode == inputCustomer.CustomerTaxCode);
                if (checkUser == null && checkCustomer == null)
                {
                    AccountBusiness accountBusiness = new AccountBusiness();

                    // Create user
                    Role role = db.Roles.FirstOrDefault(m => m.Name.Equals("Customer"));
                    // Generate password

                    string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
                    var stringChars = new char[6];
                    var random = new Random();
                    for (int i = 0; i < stringChars.Length; i++)
                    {
                        stringChars[i] = chars[random.Next(chars.Length)];
                    }
                    string password = new String(stringChars);


                    User user = new User
                    {
                        Username = inputCustomer.Username,
                        Email = inputCustomer.CustomerEmail,
                        Password = accountBusiness.CreatePassword(password),
                        Role = role,
                        Fullname = inputCustomer.CustomerName

                    };


                    // Creat customer
                    Customer customer = new Customer
                    {
                        CustomerAddress = inputCustomer.CustomerAddress,
                        CustomerPhoneNumber = inputCustomer.CustomerPhoneNumber,
                        TaxCode = inputCustomer.CustomerTaxCode,
                        IsActive = true
                    };

                    user.Customers.Add(customer);
                    order.User = user;

                    string passwordStore = "Tiembanhdautay";
                    string from = "*****@*****.**";
                    string to = user.Email;

                    MailMessage mail = new MailMessage();
                    mail.IsBodyHtml = true;
                    mail.To.Add(to);
                    mail.From = new MailAddress(from);
                    mail.Subject = string.Format("{0}{1}", "Tạo tài khoản cho khách hàng ", user.Fullname);
                    mail.Body += "<html lang='vi'>";
                    mail.Body += "<head>";
                    mail.Body += "<meta charset='utf-8'>";
                    mail.Body += "</head>";
                    mail.Body += "<body>";
                    mail.Body += "<div> Bạn vừa được tạo tài khoản tại Tiệm Bánh Dâu Tây</div>";
                    mail.Body += string.Format("{0}{1}", "Tên tài khoản: ", user.Username);
                    mail.Body += "<div></div>";
                    mail.Body += string.Format("{0}{1}", "Mật khẩu: ", password);
                    mail.Body += "</body>";
                    mail.Body += "</html>";
                    var mailBody = mail.Body;
                    var htmlBody = AlternateView.CreateAlternateViewFromString(mailBody, null, "text/html");
                    mail.AlternateViews.Add(htmlBody);

                    mail.Priority = MailPriority.High;
                    SmtpClient smtp = new SmtpClient();
                    smtp.UseDefaultCredentials = false;
                    smtp.Credentials = new System.Net.NetworkCredential(from, passwordStore);
                    smtp.Port = 587;
                    smtp.Host = "smtp.gmail.com";
                    smtp.EnableSsl = true;

                    try
                    {
                        smtp.Send(mail);
                    }
                    catch (Exception e)
                    {
                        return false;
                    }

                }

            }

            #region Add OrderItem, OutputMaterial, ExportFrom, InputMaterial
            foreach (OrderItem orderItem in orderViewModel.Order.OrderItems)
            {
                List<OutputMaterial> outputMaterialList = new List<OutputMaterial>();
                List<MaterialViewModel> materialListForOrderItem = GetMaterialListForOrderItem(orderItem.Product.ProductId,
                    orderItem.Quantity);
                foreach (MaterialViewModel materialViewModel in materialListForOrderItem)
                {
                    OutputMaterial outputMaterial = new OutputMaterial();
                    outputMaterial.ExportQuantity = materialViewModel.NeedQuantity;
                    outputMaterial.ProductMaterialId = materialViewModel.ProductMaterialId;
                    //Get list of InputMaterial available order by expire date descending
                    List<InputMaterial> tempList = db.InputMaterials.Where(
                        m => m.ProductMaterialId == materialViewModel.ProductMaterialId && m.IsActive && m.RemainQuantity > 0).OrderByDescending(m => m.InputMaterialExpiryDate).ToList();
                    //Compare each input material with material ViewModel and merge each material of orderItem to input material
                    foreach (InputMaterial inputMaterial in tempList)
                    {
                        if (materialViewModel.NeedQuantity > 0)
                        {
                            ExportFrom exportFrom = new ExportFrom();
                            if (inputMaterial.RemainQuantity >= materialViewModel.NeedQuantity)
                            {
                                exportFrom.ExportFromQuantity = materialViewModel.NeedQuantity;
                                inputMaterial.RemainQuantity -= materialViewModel.NeedQuantity;
                                materialViewModel.NeedQuantity = 0;
                            }
                            else
                            {
                                materialViewModel.NeedQuantity -= inputMaterial.RemainQuantity;
                                exportFrom.ExportFromQuantity = inputMaterial.RemainQuantity;
                                inputMaterial.RemainQuantity = 0;
                            }
                            InputBill inputBill = inputMaterial.InputBill;
                            // Get info for ExportFrom
                            exportFrom.InputBill = inputBill;
                            // Add input bill to output material
                            outputMaterial.ExportFroms.Add(exportFrom);
                        }
                    }
                    outputMaterialList.Add(outputMaterial);
                }
                orderItem.OutputMaterials = outputMaterialList;
            }
            #endregion




            #region Update ProductMaterial

            foreach (MaterialViewModel materialViewModel in orderViewModel.MaterialList)
            {
                //Update currentQuantity of product material
                ProductMaterial productMaterial =
                    db.ProductMaterials.FirstOrDefault(m => m.ProductMaterialId == materialViewModel.ProductMaterialId);
                if (productMaterial == null)
                {
                    return false;
                }
                productMaterial.CurrentQuantity -= materialViewModel.NeedQuantity;
                db.SaveChanges();
            }
            #endregion
            // Add order to db
            db.Orders.Add(order);
            db.SaveChanges();
            try
            {
                contextTransaction.Commit();
            }
            catch (Exception)
            {
                contextTransaction.Rollback();
            }
            finally
            {
                contextTransaction.Dispose();
            }



            return true;
        }
Exemplo n.º 2
0
        /// <summary>
        /// Make OrderViewModel
        /// </summary>
        /// <param name="cartList">List of product</param>
        /// <param name="customerId">The ID of the customer in DB</param>
        /// <param name="customerInput">The new customer info</param>
        /// <returns></returns>
        public OrderViewModel MakeOrderViewModel(List<CartViewModel> cartList, int? customerId, CustomerViewModel customerInput)
        {
            OrderViewModel result = new OrderViewModel();
            // Create new order
            Order order = new Order();
            if (customerId != null && customerInput == null)
            {
                order.CustomerUserId = customerId;
                //Add info for OrderView
                //Customer info
                Customer customer = db.Customers.FirstOrDefault(m => m.UserId == customerId && m.IsActive);
                if (customer != null)
                {
                    result.OrderPersonName = customer.User.Fullname;
                    result.OrderPersonAddress = customer.CustomerAddress;
                    result.OrderPersonPhoneNumber = customer.CustomerPhoneNumber;
                    result.OrderPersonTaxCode = customer.TaxCode;
                    result.IsGuest = false;
                    result.IsLoyal = customer.IsLoyal;
                }
            }
            else if (customerId == null && customerInput != null)
            {
                order.CustomerUserId = 0;
                //Add new customer info for OrderView
                //Customer info

                result.OrderPersonName = customerInput.CustomerName;
                result.OrderPersonAddress = customerInput.CustomerAddress;
                result.OrderPersonPhoneNumber = customerInput.CustomerPhoneNumber;
                result.OrderPersonTaxCode = customerInput.CustomerTaxCode;
                result.IsGuest = true;
                result.IsLoyal = false;
            }

            // Temp var for total amount
            int totalAmount = 0;
            // Taemp var for total quantity
            int totalQuantity = 0;
            // Creat OrderItemViewModel List and MaterialViewModelList
            List<OrderItem> orderItemList = new List<OrderItem>();
            List<MaterialViewModel> materialViewModelList = new List<MaterialViewModel>();

            foreach (CartViewModel cartViewModel in cartList)
            {
                if (cartViewModel.Quantity != 0)
                {
                    //Create OrderItem and add to list
                    OrderItem orderItem = new OrderItem();
                    Product product = db.Products.FirstOrDefault(m => m.ProductId == cartViewModel.ProductId);
                    orderItem.Product = product;
                    orderItem.Quantity = cartViewModel.Quantity;
                    orderItem.RealPrice = cartViewModel.RealPrice;
                    orderItem.Amount = cartViewModel.Quantity * cartViewModel.RealPrice;
                    orderItemList.Add(orderItem);

                    totalAmount += cartViewModel.Quantity * cartViewModel.RealPrice;
                    totalQuantity += cartViewModel.Quantity;

                    //Create MaterialViewModel and add to list
                    // Get Product in DB
                    if (product != null)
                    {
                        foreach (Recipe recipe in product.Recipes)
                        {
                            if (materialViewModelList.Count == 0)
                            {
                                MaterialViewModel materialViewModel = new MaterialViewModel();
                                // Get each product material and multiply with quantity
                                materialViewModel.ProductMaterialId = recipe.ProductMaterialId;
                                materialViewModel.ProductMaterialName = recipe.ProductMaterial.ProductMaterialName;
                                materialViewModel.NeedQuantity =
                                    (int)Math.Floor(recipe.RecipeQuantity * cartViewModel.Quantity);
                                materialViewModel.StorageQuantity = recipe.ProductMaterial.CurrentQuantity;
                                // Add into MaterialViewModelList
                                materialViewModelList.Add(materialViewModel);
                            }
                            else
                            {
                                bool check = true;
                                foreach (MaterialViewModel materialViewModel in materialViewModelList)
                                {
                                    if (materialViewModel.ProductMaterialId == recipe.ProductMaterialId)
                                    {
                                        materialViewModel.NeedQuantity +=
                                            (int)Math.Floor(recipe.RecipeQuantity * cartViewModel.Quantity);
                                        check = false;
                                    }
                                }
                                if (check)
                                {
                                    MaterialViewModel materialViewModel = new MaterialViewModel();
                                    // Get each product material and multiply with quantity
                                    materialViewModel.ProductMaterialId = recipe.ProductMaterialId;
                                    materialViewModel.ProductMaterialName = recipe.ProductMaterial.ProductMaterialName;
                                    materialViewModel.NeedQuantity =
                                        (int)Math.Floor(recipe.RecipeQuantity * cartViewModel.Quantity);
                                    materialViewModel.StorageQuantity = recipe.ProductMaterial.CurrentQuantity;
                                    // Add into MaterialViewModelList
                                    materialViewModelList.Add(materialViewModel);
                                }
                            }

                        }
                    }
                }
            }

            // Complete attribute in order
            //Check enough material for order
            result.IsEnoughMaterial = true;
            foreach (MaterialViewModel materialViewModel in materialViewModelList)
            {
                if (materialViewModel.NeedQuantity > materialViewModel.StorageQuantity)
                {
                    materialViewModel.IsEnough = false;
                    result.IsEnoughMaterial = false;
                }
                else
                {
                    materialViewModel.IsEnough = true;
                }
            }


            int discountAmount = 0;
            DiscountByQuantity discountByQuantity =
                db.DiscountByQuantities.FirstOrDefault(
                    m => m.QuantityFrom <= totalQuantity && m.QuantityTo >= totalQuantity);

            if (discountByQuantity != null)
            {
                discountAmount = totalAmount * discountByQuantity.DiscountValue / 100;
            }

            int totalTax = 0;
            TaxRate taxRate =
                db.TaxRates.FirstOrDefault(
                    m =>
                        m.TaxType.Abbreviation.Equals("GTGT") && m.BeginDate <= DateTime.Now &&
                        m.EndDate >= DateTime.Now);
            if (taxRate != null)
            {
                totalTax = (totalAmount - discountAmount) * taxRate.TaxRateValue / 100;
            }

            order.Amount = totalAmount;
            order.DiscountAmount = discountAmount;
            order.TaxAmount = totalTax;
            order.OrderItems = orderItemList;
            result.Order = order;

            result.MaterialList = materialViewModelList;
            // Calculate the Material cost
            List<InputMaterialViewModel> inputMaterialList = GetInputMaterialList(materialViewModelList);
            result.MaterialCost = GetMaterialCost(inputMaterialList);
            return result;
        }
Exemplo n.º 3
0
        public bool IsEnoughMaterialForOrder(Order order)
        {
            List<MaterialViewModel> materialViewModelList = new List<MaterialViewModel>();
            foreach (OrderItem orderItem in order.OrderItems)
            {
                // Get material list for each order item
                List<MaterialViewModel> materialListForOrderItem = GetMaterialListForOrderItem(orderItem.Product.ProductId, orderItem.Quantity);

                // Check each material in materialListForOrderItem, if NeedQuantity > Storage Quantity, return false
                // else if materialViewModelList does not have any member, add into it
                // else check each member in materialViewModel depends on ProductMaterialId, if NeedQuantity + this.NeedQuantity > Storage Quantity, return false
                // else plus into NeedQuantity
                // else add this materialListForOrderItem into materialViewModelList
                foreach (MaterialViewModel materialForOrderItemViewModel in materialListForOrderItem)
                {
                    if (materialForOrderItemViewModel.NeedQuantity > materialForOrderItemViewModel.StorageQuantity)
                    {
                        return false;
                    }
                    if (materialViewModelList.Count == 0)
                    {
                        materialViewModelList.Add(materialForOrderItemViewModel);
                    }
                    else
                    {
                        bool check = true;
                        foreach (MaterialViewModel materialViewModel in materialViewModelList)
                        {
                            if (materialViewModel.ProductMaterialId == materialForOrderItemViewModel.ProductMaterialId)
                            {
                                check = false;
                                if ((materialViewModel.NeedQuantity + materialForOrderItemViewModel.NeedQuantity) >
                                    materialViewModel.StorageQuantity)
                                {
                                    return false;
                                }
                                else
                                {
                                    materialViewModel.NeedQuantity += materialForOrderItemViewModel.NeedQuantity;
                                }
                            }
                        }
                        if (check)
                        {
                            materialViewModelList.Add(materialForOrderItemViewModel);
                        }
                    }
                }
            }
            return true;
        }
Exemplo n.º 4
0
        public int UpdateOrder(List<CartViewModel> cartList, int orderId, int depositAmount,
            DateTime deliveryDate, int staffUserId, string orderNote)
        {

            Order previousOrder = db.Orders.FirstOrDefault(m => m.OrderId == orderId);

            if (previousOrder == null)
            {
                return 0;
            }

            int check = 0;

            foreach (OrderItem orderItem in previousOrder.OrderItems)
            {

                foreach (CartViewModel cartViewModel in cartList)
                {
                    if (cartViewModel.ProductId == orderItem.ProductId &&
                              cartViewModel.Quantity == orderItem.Quantity &&
                              cartViewModel.RealPrice == orderItem.RealPrice)
                    {
                        check++;
                    }
                }
            }

            if (previousOrder.OrderItems.Count == check && cartList.Count == check)
            {
                return 2;
            }

            OrderViewModel orderViewModel = MakeOrderViewModel(cartList, previousOrder.User.UserId, null);

            

            if (orderViewModel == null)
            {
                return 0;
            }
            DbContextTransaction contextTransaction = db.Database.BeginTransaction();
            // Add order
            Order order = new Order();
            order.CreateTime = previousOrder.CreateTime;
            order.OrderStatus = 1;
            order.PlanDeliveryTime = deliveryDate;
            order.DepositAmount = depositAmount;
            order.Amount = orderViewModel.Order.Amount;
            order.TaxAmount = orderViewModel.Order.TaxAmount;
            order.StaffApproveUserId = staffUserId;
            order.OrderNote = orderNote;
            // Get current identity of Order table
            order.OrderCode = previousOrder.OrderCode;

            //Add customer
            order.User = previousOrder.User;

            // Update prevoius order
            previousOrder.IsStaffEdit = true;
            order.PreviousOrderId = previousOrder.OrderId;
            order.IsStaffEdit = false;
            order.StaffEditTime = DateTime.Now;

            //Add OrderItem and OutputMaterial 
            #region Add OrderItem, OutputMaterial, ExportFrom, InputMaterial
            List<OrderItem> orderItemList = new List<OrderItem>();
            foreach (OrderItem orderItem in orderViewModel.Order.OrderItems)
            {
                TaxRate taxRate =
                    db.TaxRates.FirstOrDefault(
                        m =>
                            m.TaxTypeId == 1 && previousOrder.CreateTime <= m.EndDate &&
                            previousOrder.CreateTime >= m.BeginDate);
                List<OutputMaterial> outputMaterialList = new List<OutputMaterial>();
                List<MaterialViewModel> materialListForOrderItem = GetMaterialListForOrderItem(orderItem.Product.ProductId,
                    orderItem.Quantity);
                foreach (MaterialViewModel materialViewModel in materialListForOrderItem)
                {
                    OutputMaterial outputMaterial = new OutputMaterial();
                    outputMaterial.ExportQuantity = materialViewModel.NeedQuantity;
                    outputMaterial.ProductMaterialId = materialViewModel.ProductMaterialId;
                    //Get list of InputMaterial available order by expire date descending
                    List<InputMaterial> tempList = db.InputMaterials.Where(
                        m => m.ProductMaterialId == materialViewModel.ProductMaterialId && m.IsActive && m.RemainQuantity > 0).OrderByDescending(m => m.InputMaterialExpiryDate).ToList();
                    //Compare each input material with material ViewModel and merge each material of orderItem to input material
                    foreach (InputMaterial inputMaterial in tempList)
                    {
                        if (materialViewModel.NeedQuantity > 0)
                        {
                            ExportFrom exportFrom = new ExportFrom();
                            if (inputMaterial.RemainQuantity >= materialViewModel.NeedQuantity)
                            {
                                exportFrom.ExportFromQuantity = materialViewModel.NeedQuantity;
                                inputMaterial.RemainQuantity -= materialViewModel.NeedQuantity;
                                materialViewModel.NeedQuantity = 0;
                            }
                            else
                            {
                                materialViewModel.NeedQuantity -= inputMaterial.RemainQuantity;
                                exportFrom.ExportFromQuantity = inputMaterial.RemainQuantity;
                                inputMaterial.RemainQuantity = 0;
                            }
                            InputBill inputBill = inputMaterial.InputBill;
                            // Get info for ExportFrom
                            exportFrom.InputBill = inputBill;
                            outputMaterial.ExportFroms.Add(exportFrom);
                        }
                    }
                    outputMaterialList.Add(outputMaterial);
                }
                orderItem.OutputMaterials = outputMaterialList;
                orderItemList.Add(orderItem);
            }
            order.OrderItems = orderItemList;
            #endregion




            #region Update ProductMaterial

            foreach (MaterialViewModel materialViewModel in orderViewModel.MaterialList)
            {
                //Update currentQuantity of product material
                ProductMaterial productMaterial =
                    db.ProductMaterials.FirstOrDefault(m => m.ProductMaterialId == materialViewModel.ProductMaterialId);
                if (productMaterial == null)
                {
                    return 0;
                }
                productMaterial.CurrentQuantity -= materialViewModel.NeedQuantity;
                db.SaveChanges();
            }
            #endregion
            // Add order to db
            db.Orders.Add(order);
            db.SaveChanges();
            try
            {
                contextTransaction.Commit();
            }
            catch (Exception)
            {
                contextTransaction.Rollback();
                return 0;
            }
            finally
            {
                contextTransaction.Dispose();
            }



            return 1;
        }
Exemplo n.º 5
0
 public bool OrderProduct(string orderTime, DateTime planDeliveryDate, int Amount, int taxAmount, int discount, int cusUserId, List<CustomerCartViewModel> cart, string Note)
 {
     DbContextTransaction contextTransaction = db.Database.BeginTransaction();
     Order order = new Order();
     order.OrderCode = orderTime;
     order.CreateTime = DateTime.Now;
     order.PlanDeliveryTime = planDeliveryDate;
     order.DepositAmount = 0;
     order.IsStaffEdit = false;
     order.CustomerEditingFlag = false;
     order.OrderStatus = 0;
     order.Amount = Amount;
     order.TaxAmount = taxAmount;
     order.DiscountAmount = discount;
     order.CustomerUserId = cusUserId;
     order.OrderNote = Note;
     db.Orders.Add(order);
     db.SaveChanges();
     order.OrderCode = CreateOrderCode(orderTime, order.OrderId);
     //string orderNumber = order.OrderId.ToString().PadLeft(4, '0');
     //order.OrderCode = String.Format("{0}{1}{2}", 'O', orderTime, orderNumber);
     db.SaveChanges();
     foreach (var item in cart)
     {
         OrderItem orderDetail = new OrderItem();
         orderDetail.OrderId = order.OrderId;
         orderDetail.ProductId = item.ProductId;
         orderDetail.Quantity = item.Quantity;
         orderDetail.RealPrice = item.Price;
         orderDetail.Amount = item.Total;
         db.OrderItems.Add(orderDetail);
     }
     db.SaveChanges();
     try
     {
         contextTransaction.Commit();
     }
     catch (Exception)
     {
         contextTransaction.Rollback();
     }
     finally
     {
         contextTransaction.Dispose();
     }
     return true;
 }
Exemplo n.º 6
0
 public bool GuestOrderProduct(string orderTime, DateTime planDeliveryDate, int Amount, int taxAmount, int discount, List<CustomerCartViewModel> cart, string sName, string sPhone, string sAddress, string sEmail, string Note)
 {
     DbContextTransaction contextTransaction = db.Database.BeginTransaction();
     Order order = new Order();
     order.OrderCode = orderTime;
     order.CreateTime = DateTime.Now;
     order.PlanDeliveryTime = planDeliveryDate;
     order.DepositAmount = 0;
     order.IsStaffEdit = false;
     order.CustomerEditingFlag = false;
     order.OrderStatus = 0;
     order.Amount = Amount;
     order.TaxAmount = taxAmount;
     order.DiscountAmount = discount;
     order.OrderNote = Note;
     GuestInfo guestInfo = new GuestInfo();
     guestInfo.GuestInfoName = sName;
     guestInfo.GuestInfoPhone = sPhone;
     guestInfo.GuestInfoAddress = sAddress;
     guestInfo.GuestInfoEmail = sEmail;
     db.GuestInfoes.Add(guestInfo);
     db.SaveChanges();
     order.GuestInfoId = guestInfo.GuestInfoId;
     db.Orders.Add(order);
     db.SaveChanges();
     order.OrderCode = CreateOrderCode(orderTime, order.OrderId);
     db.SaveChanges();
     foreach (var item in cart)
     {
         OrderItem orderDetail = new OrderItem();
         orderDetail.OrderId = order.OrderId;
         orderDetail.ProductId = item.ProductId;
         orderDetail.Quantity = item.Quantity;
         orderDetail.RealPrice = item.Price;
         orderDetail.Amount = item.Total;
         db.OrderItems.Add(orderDetail);
     }
     db.SaveChanges();
     try
     {
         contextTransaction.Commit();
     }
     catch (Exception)
     {
         contextTransaction.Rollback();
     }
     finally
     {
         contextTransaction.Dispose();
     }
     return true;
 }