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P142页 , 关于过滤的问题 #49

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SniperM99 opened this issue Feb 21, 2020 · 0 comments

SniperM99 commented Feb 21, 2020

        try:
            tag = Tag.objects.get(id=tag_id)
        except Tag.DoesNotExist:
            post_list = []
        else:
            post_list = tag.post_set.filter(status=Post.STATUS_NORMAL)

这里的tag.post_set是什么作用? post_set是什么语法?

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