public IHttpActionResult GetOrderById(int id)
        {
            Order order = db.Order.Find(id);
            OrderViewModel orderViewModel = new OrderViewModel();
            orderViewModel.DishId = order.DishId;
            orderViewModel.Id = order.Id;
            orderViewModel.State = order.State;
            orderViewModel.UserName = order.UserName;
            orderViewModel.Date = order.Date;

            DishViewModel dish = new DishViewModel();
            dish.Id = order.Dish.Id;
            dish.Name = order.Dish.Name;
            dish.Description = order.Dish.Description;
            dish.Price = order.Dish.Price;
            dish.Photo = order.Dish.Photo;

            orderViewModel.Dish = dish;

            if (order == null)
            {
                return NotFound();
            }

            return Ok(orderViewModel);
        }
        public List<OrderViewModel> GetOrders(string username)
        {
            var orders = new List<OrderViewModel>();
            foreach (var order in db.Order.Where(order => order.UserName == username).ToList())
            {
                OrderViewModel orderViewModel = new OrderViewModel();
                orderViewModel.DishId = order.DishId;
                orderViewModel.Id = order.Id;
                orderViewModel.State = order.State;
                orderViewModel.UserName = order.UserName;
                orderViewModel.Date = order.Date;

                DishViewModel dish = new DishViewModel();
                dish.Id = order.Dish.Id;
                dish.Name = order.Dish.Name;
                dish.Description = order.Dish.Description;
                dish.Price = order.Dish.Price;
                dish.Photo = order.Dish.Photo;

                orderViewModel.Dish = dish;
                orders.Add(orderViewModel);
            }
            
            return orders;
        }