public static void AddOrder(DTO.Order newOrder)
        {
            PBPizzaDBEntities db = new PBPizzaDBEntities();
            var orders           = db.Orders;

            var order = new Order
            {
                Size         = newOrder.Size,
                Crust        = newOrder.Crust,
                Sausage      = newOrder.Sausage,
                Pepperoni    = newOrder.Pepperoni,
                Onions       = newOrder.Onions,
                GreenPeppers = newOrder.GreenPeppers,
                TotalCost    = newOrder.TotalCost,
                Name         = newOrder.Name,
                Address      = newOrder.Address,
                ZipCode      = newOrder.ZipCode,
                PhoneNumber  = newOrder.PhoneNumber,
                PaymentType  = newOrder.PaymentType,
                Completed    = newOrder.Completed
            };

            orders.Add(order);
            db.SaveChanges();
        }
        public static void CompleteOrder(int orderId)
        {
            PBPizzaDBEntities db = new PBPizzaDBEntities();

            var order = db.Orders.FirstOrDefault(p => p.OrderId == orderId);

            if (order != null)
            {
                order.Completed = true;
            }
            db.SaveChanges();
        }