django 中 GenericForeignKey 关联的对象删除时 怎么样级联删除 - V2EX
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xzc19970719

django 中 GenericForeignKey 关联的对象删除时 怎么样级联删除

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  •   xzc19970719 Oct 8, 2018 3189 views
    This topic created in 2783 days ago, the information mentioned may be changed or developed.

    比如我把一篇博客删了,我有一个点赞数 通过 GenericForeignKey('博客类', '博客 id') 关联到博客 请问怎么把这个点赞数也删了

  • 点赞数
  • 博客
  • 删除
  • 关联
    2 replies    2018-10-09 14:28:53 +08:00
    PythonAnswer
        1
    PythonAnswer  
       Oct 9, 2018
    models.ForeignKey('self', on_delete=models.CASCADE)
    WoodenRobot
        2
    WoodenRobot  
       Oct 9, 2018
    在被关联的博客 model 中增加一个 GenericRelation 关联点赞 model， 删除博客时就会级联删除相应的点赞数。
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