public static Customer Load(int customerId, LoadDataFromDBDelegate loadDataDelegate)
{
Customer customer = new Customer();
SqlConnection connection = new SqlConnection(ConnectionString);
connection.Open();
//Making this part generic means that it is reusable
//This can be called by a method that wants to create, delete, create, update customers, etc
loadDataDelegate(connection, customerId, customer);
connection.Close();
return(customer);
}
public bool PlaceOrder(Order order, int customerId)
{
LoadDataFromDBDelegate delegateInstanceObj = new LoadDataFromDBDelegate(LoadCustomerFromDB);
Customer customer = CustomerRepository.Load(customerId, delegateInstanceObj);
if (order.Amount == 0)
{
return(false);
}
if (customer.Country == "UK")
{
order.VAT = 0.2d;
}
else
{
order.VAT = 0;
}
orderRepository.Save(order);
return(true);
}