// UpdateOrderAccount(Orders, Customer) => async void
// Associates a previously anonymous order with a user account
// PRODUCTION: This is called if someone starts an order while logged out and then logs back in afterwards.
public async Task UpdateOrderAccount(Orders o, Customer c)
{
o.CustomerId = c.Id;
o.AccountId = (await this.database.Users.Where(u => u.Id == c.AccountId).FirstOrDefaultAsync()).Id;
if (this.database.Entry(o).State == EntityState.Detached){
this.database.Orders.Attach(o);
}
this.database.Entry(o).State = EntityState.Modified;
await this.database.SaveChangesAsync();
}
// CancelOrder(Orders) => async void
// Cancels all items in an order and closes the order status
// PRODUCTION: This is called if someone logged in starts an order and then logs out without finalizing the order.
public Task CancelOrder(Orders o)
{
if (o != null)
{
var query = (from item in this.database.OrderItems
where item.OrderId == o.Id
select item).ToList();
foreach (var i in query)
{
i.Removed = true;
if (database.Entry(i).State == EntityState.Detached)
{
this.database.OrderItems.Attach(i);
}
this.database.Entry(i).State = EntityState.Modified;
}
o.OrderStatus = OrderStatus.Cancelled;
if (database.Entry(o).State == EntityState.Detached)
{
this.database.Orders.Attach(o);
}
this.database.Entry(o).State = EntityState.Modified;
}
return this.database.SaveChangesAsync();
}
// StartOrder(string) => async Orders
// initializes an order for a user and sets the state to Shopping
// PRODUCTION: This is called any time someone reaches the Orders page without a valid cookie set
public async Task<Orders> StartOrder(String custId)
{
// start the order
Orders o = new Orders();
// try to get corresponding account if it exists
Customer c = await this.database.Customers.Where(x => x.Id == custId).FirstOrDefaultAsync();
AccountUser user = null;
if (c != null)
{
user = await this.database.Users.Where(u => u.Id == c.AccountId).FirstOrDefaultAsync();
}
if (user != null)
{
// person is signed in supposedly
o.AccountId = user.Id;
}
// we set the remaining parameters or the Orders object and save.
o.CustomerId = custId;
o.Created = DateTime.Now;
o.OrderStatus = OrderStatus.Shopping;
this.database.Orders.Add(o);
await this.database.SaveChangesAsync();
return o;
}