private void UpdateMessage(Order order)
 {
     Console.WriteLine($"update order id:{order.Id} with {order.Amount} successfully!");
 }
 private void InsertMessage(Order order)
 {
     Console.WriteLine($"insert order id:{order.Id} with {order.Amount} successfully!");
 }
 public void Save(Order order)
 {
     _orderModel.Save(order, this.InsertMessage, this.UpdateMessage);
 }