django实现类似触发器的效果

https://blog.csdn.net/pushiqiang/article/details/50652080?utm_source=blogxgwz1

https://blog.csdn.net/qq_40157234/article/details/80691348

https://blog.csdn.net/u010377372/article/details/80812803?utm_source=blogxgwz0

原文地址:https://www.cnblogs.com/pythonClub/p/9849810.html