public void SaveBook(Book book)
{
if (book.ProductId == 0)
{
book.CreatedDate = DateTime.Now;
dataContext.Books.Add(book);
dataContext.SaveChanges();
}
else
{
dataContext.Entry(book).State = EntityState.Modified;
dataContext.Entry(book).Property(c => c.CreatedDate).IsModified = false;
dataContext.SaveChanges();
}
}
public void SaveInvoice(Cart cart, Order order)
{
// order processing logic
Customer customer = new Customer
{
Firstname = order.Firstname,
Lastname = order.Lastname,
Address = order.Line1 + " " + order.Line2 + " " + order.Line3,
City = order.City,
Zip = order.Zip,
Email = order.Email
};
if (dataContext.Customers.Any(c => c.Firstname == customer.Firstname && c.Lastname == customer.Lastname && c.Email == customer.Email))
{
customer = dataContext.Customers.Where(c => c.Firstname ==
customer.Firstname && c.Lastname == customer.Lastname && c.Email == customer.Email).First();
customer.Address = order.Line1 + " " + order.Line2 + " " + order.Line3;
customer.Zip = order.Zip;
// ensure update instead of insert
dataContext.Entry(customer).State = EntityState.Modified;
}
Invoice invoice = new Invoice {
Customer = customer, OrderDate = DateTime.Now
};
foreach (CartLine cartLine in cart.Lines)
{
OrderItem orderItem = new OrderItem(cartLine.Product, cartLine.Quantity);
orderItem.ProductId = cartLine.Product.ProductId;
orderItem.Product = null;
invoice.OrderItems.Add(orderItem);
}
// Save to data store
dataContext.Invoices.Add(invoice);
dataContext.SaveChanges();
cart.Clear();
}
