public ActionResult PlaceOrder(HomepageModel hpm)
{
/* Checking if the model isn't fake
* or empty. and placeing the order,
* and setting up the customer as well.
* */
if (hpm.SingleProduct != null && hpm.CustomerEntity != null)
{
try
{
//! Lets Insert the Customer details first:
CustomerDAL customerDAL = new CustomerDAL();
CustomerEntity customer = new CustomerEntity();
customer.Name = hpm.CustomerEntity.Name;
customer.Address = hpm.CustomerEntity.Address;
customer.Email = hpm.CustomerEntity.Email;
/**
* CheckIfExist variable holding the current customer data.
* and take place to ensure there isn't duplicated customers.
*
* We assusme that uniqe customer has uniqe Name,
* and uniqe Email Addr. on any other mismatches we'll add the
* customer as a new customer record.
* */
var checkIfExistAlready = customerDAL.Customers.FirstOrDefault(
cust => (cust.Name.Equals(customer.Name)) &&
(cust.Address.Equals(customer.Address)) &&
(cust.Email.Equals(customer.Email))
);
//! Case customer not exist in customers data.
if (checkIfExistAlready == null)
{
/* This step above and below is about avoiding redundency
* and keep only exact one Customer recored.
* */
customerDAL.Customers.Add(customer);
customerDAL.SaveChanges();
}
//! Now Lets bind the customer Id to the Order CustomerId
var exactCustomer = customerDAL.Customers.FirstOrDefault(
cust=> (cust.Name.Equals(hpm.CustomerEntity.Name)) &&
(cust.Address.Equals(hpm.CustomerEntity.Address)) &&
(cust.Email.Equals(hpm.CustomerEntity.Email))
);
//! Now that we have the current customer details lets make an order
OrderDAL orderDAL = new OrderDAL();
Order newOrder = new Order();
newOrder.Date = DateTime.Now;
newOrder.CustomerId = exactCustomer.Id;
newOrder.Product_Id = hpm.SingleProduct.Id;
orderDAL.Order.Add(newOrder);
orderDAL.SaveChanges();
/*
* Quantity handaling for the current product
**/
ProductDAL productDAL = new ProductDAL();
var currentProduct = productDAL.Products.FirstOrDefault(
prod=>prod.Id == hpm.SingleProduct.Id);
if (currentProduct.Quantity >= 0)
currentProduct.Quantity--;
productDAL.Entry(currentProduct).CurrentValues.SetValues(currentProduct);
productDAL.SaveChanges();
return View("OrderCompleted");
}
catch (Exception)
{
//! If there's an error, yield err.
return View("OrderFaild");
}
}
return View("OrderCompleted");
}
//Post api/orders/
public HttpResponseMessage PostOrders(ICollection<SingleOrder> orders, [ValueProvider(typeof(HeaderValueProviderFactory<string>))]string sessionKey)
{
var responseMsg = this.PerformOperationAndHandleExceptions<HttpResponseMessage>(
() =>
{
using (var context = new StoreContext())
{
this.ValidateSessionKey(sessionKey);
var user = context.Users.FirstOrDefault(u => u.SessionKey == sessionKey);
if (user == null)
{
throw new ArgumentException("Invalid SessionKey or user is already logouted");
}
//Adding main order
var order = new Order()
{
User = user,
Status = Pending
};
context.Orders.Add(order);
context.SaveChanges();
//Adding orders for individual products
foreach (var singleOrder in orders)
{
var product = context.Products.FirstOrDefault(p => p.Name == singleOrder.Product.Name);
if (product.Quantity == 0)
{
throw new InvalidOperationException("Current product is out of stock!");
}
product.Quantity--;
var newSingleOrder = new SingleOrder
{
Quantity = 1,
Product = product,
Order = order,
};
context.SingleOrders.Add(newSingleOrder);
context.SaveChanges();
}
var response = this.Request.CreateResponse(HttpStatusCode.OK, JsonMediaTypeFormatter.DefaultMediaType);
return response;
}
});
return responseMsg;
}
