在项目明细显示屏幕上处理取消编辑的标准方法是什么？

I'm currently working on an application which keeps tracks of cats and their associated cheeseburgers. I'm backing the application with Core Data. There is a one-to-many relationship between a cat and its cheeseburgers (a cat is allowed to have zero or more cheeseburgers).I'm currently working on an application which k