public OrderErrorCodes AddToOrder(int dishNumber, int tableNumber)
{
var dish = dishManager.GetDishByDishNumber(dishNumber);
if (dish == null)
{
return(OrderErrorCodes.NoSuchDish);
}
var table = tableManager.GetTableByTableNumber(tableNumber);
if (table == null)
{
return(OrderErrorCodes.NoSuchTable);
}
var order = orderManager.GetActiveOrder(table.TableID);
if (order == null)
{
order = orderManager.CreateActiveOrder(table.TableID);
}
orderManager.AddToOrder(order.OrderID, dish.DishID);
return(OrderErrorCodes.Ok);
}