public Customer GetCustomer(string userName)
        {
            var      productRepo = new SimpleProductRepository();
            Customer result      = null;
            var      batch       = new BatchSql();


            //see if there's a customer - if not create one
            object user = CustomersTable.Select(CustomersTable.Columns.UserName)
                          .Where(CustomersTable.Columns.UserName, userName)
                          .BuildCommand()
                          .ExecuteScalar();

            if (user == null)
            {
                CustomersTable.Insert(
                    new Dictionary <string, object>()
                {
                    { CustomersTable.Columns.UserName, userName },
                    { CustomersTable.Columns.LanguageCode, System.Globalization.CultureInfo.CurrentCulture.TwoLetterISOLanguageName }
                })
                .BuildCommand()
                .ExecuteNonQuery();
            }


            //customer
            batch.Append(CustomersTable.Select()
                         .Where(CustomersTable.Columns.UserName, userName));


            //addresses
            batch.Append(AddressesTable.Select()
                         .Where(AddressesTable.Columns.UserName, userName));

            //shopping cart
            Guid orderID = GetCartID(userName);

            batch.Append(OrdersTable.Select()
                         .Where(OrdersTable.Columns.OrderID, orderID));

            //items
            //avert your eyes if this bothers you
            var itemSql = new SqlStatement(connectionStringName);

            itemSql.Add(string.Format("SELECT {0}, {1} ", OrderItemsTable.COLUMN_LIST, ProductsTable.COLUMN_LIST));
            itemSql.InnerJoin(
                OrderItemsTable.TABLE_NAME,
                OrderItemsTable.ColumnsQualified.SKU,
                ProductsTable.TABLE_NAME,
                ProductsTable.ColumnsQualified.SKU)
            .Where(OrderItemsTable.Columns.OrderID, orderID);


            batch.Append(itemSql);

            var cmd = batch.BuildCommand(connectionStringName);

            using (var rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection)) {
                //customer
                if (rdr.Read())
                {
                    result = new Customer(userName,
                                          CustomersTable.ReadEmail(rdr),
                                          CustomersTable.ReadFirst(rdr),
                                          CustomersTable.ReadLast(rdr));
                }
                else
                {
                    result = new Customer();
                }
                //address
                result.AddressBook = new List <Address>();
                if (rdr.NextResult())
                {
                    while (rdr.Read())
                    {
                        result.AddressBook.Add(LoadAddress(rdr));
                    }
                }
                //cart
                result.Cart = new ShoppingCart(userName);
                if (rdr.NextResult())
                {
                    if (rdr.Read())
                    {
                        result.Cart.ShippingAddress = result.AddressBook.SingleOrDefault(x => x.AddressID == OrdersTable.ReadShippingAddressID(rdr));
                        result.Cart.BillingAddress  = result.AddressBook.SingleOrDefault(x => x.AddressID == OrdersTable.ReadBillingAddressID(rdr));
                        result.Cart.ShippingService = OrdersTable.ReadShippingService(rdr) ?? "";
                        result.Cart.ShippingAmount  = OrdersTable.ReadShippingAmount(rdr);
                        result.Cart.TaxAmount       = OrdersTable.ReadTaxAmount(rdr);
                    }
                }

                //items
                if (rdr.NextResult())
                {
                    while (rdr.Read())
                    {
                        var product = productRepo.LoadProduct(rdr);
                        result.Cart.Items.Add(new ShoppingCartItem(product, CartItemsTable.ReadQuantity(rdr), CartItemsTable.ReadDateAdded(rdr)));
                    }
                }
            }

            return(result);
        }
        public Order GetOrder(Guid orderID)
        {
            SimpleProductRepository  productRepository  = new SimpleProductRepository();
            SimpleCustomerRepository customerRepository = new SimpleCustomerRepository();
            Order result = null;

            var batch = new BatchSql();

            batch.Append(OrdersTable.Select().Where("OrderID", orderID));

            //items

            //products for the items
            var sql = new SqlStatement(connectionStringName);

            sql.Add("SELECT ");
            sql.Add(ProductsTable.COLUMN_LIST);
            sql.Add(OrderItemsTable.COLUMN_LIST);
            sql.Add("FROM Products INNER JOIN OrderItems ON Products.SKU = OrderItems.SKU");
            sql.Add("WHERE SKU IN (SELECT SKU FROM OrderItems WHERE OrderID=@OrderID)");

            //transactions
            batch.Append(TransactionsTable.Select().Where("orderid", orderID));

            int shippingAddressID = 0;
            int billingAddressID  = 0;
            int shippingMethodID  = 0;

            //pull it
            var cmd = sql.BuildCommand();

            using (var rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection)) {
                if (rdr.Read())
                {
                    result = new Order(OrdersTable.ReadOrderStatusID(rdr))
                    {
                        DateCreated       = OrdersTable.ReadCreatedOn(rdr),
                        DateShipped       = OrdersTable.ReadDateShipped(rdr),
                        UserName          = OrdersTable.ReadUserName(rdr),
                        DiscountAmount    = OrdersTable.ReadDiscountAmount(rdr),
                        DiscountReason    = OrdersTable.ReadDiscountReason(rdr),
                        EstimatedDelivery = OrdersTable.ReadEstimatedDelivery(rdr),
                        ID              = orderID,
                        OrderNumber     = OrdersTable.ReadOrderNumber(rdr),
                        ShippingAmount  = OrdersTable.ReadShippingAmount(rdr),
                        ShippingService = OrdersTable.ReadShippingService(rdr),
                        TaxAmount       = OrdersTable.ReadTaxAmount(rdr),
                    };

                    billingAddressID  = OrdersTable.ReadBillingAddressID(rdr);
                    shippingAddressID = OrdersTable.ReadShippingAddressID(rdr);
                }

                //load the items
                result.Items = new List <OrderLine>();
                if (rdr.NextResult())
                {
                    while (rdr.Read())
                    {
                        var product = productRepository.LoadProduct(rdr);
                        var item    = new OrderLine(OrderItemsTable.ReadDateAdded(rdr), OrderItemsTable.ReadQuantity(rdr), product);
                        result.Items.Add(item);
                    }
                }

                //transactions
                result.Transactions = new List <Transaction>();
                if (rdr.NextResult())
                {
                    while (rdr.Read())
                    {
                        Transaction t = new Transaction(
                            TransactionsTable.ReadTransactionID(rdr),
                            orderID,
                            TransactionsTable.ReadAmount(rdr),
                            TransactionsTable.ReadTransactionDate(rdr),
                            TransactionsTable.ReadAuthorizationCode(rdr),
                            TransactionsTable.ReadNotes(rdr),
                            TransactionsTable.ReadProcessor(rdr));

                        result.Transactions.Add(t);
                    }
                }
            }
            sql = new SqlStatement(connectionStringName);

            //addresses
            batch.Append(AddressesTable.Select().Where("addressid", shippingAddressID));

            batch.Append(AddressesTable.Select().Where("addressid", billingAddressID));

            //shipping method
            batch.Append(ShippingMethodsTable.Select().Where("shippingmethodid", shippingMethodID));

            cmd = batch.BuildCommand(connectionStringName);


            using (var rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection)) {
                //shipping address
                if (rdr.Read())
                {
                    //shipping
                    result.ShippingAddress = customerRepository.LoadAddress(rdr);
                }
                //billing address
                if (rdr.NextResult())
                {
                    if (rdr.Read())
                    {
                        result.BillingAddress = customerRepository.LoadAddress(rdr);
                    }
                }
                //shipping method
                if (rdr.NextResult())
                {
                    if (rdr.Read())
                    {
                        LoadShipping(rdr);
                    }
                }
            }

            return(result);
        }