帖子，评论，回复和点赞数据库架构

Question

我有一个网站，用户可以在其中评论帖子或回复评论。用户还可以喜欢回复或评论。但是，答复表中还有另一个称为reply_to的字段。这是我当前的模式：

Comment
id
user (foreign key)
post (foreign key)
comment

Reply
id
user (foreign key)
reply_to (who the user is replying to)
comment (foreign key)
reply

CommentLike (Table that shows which user liked which comments)
id
comment (foreign key)
user (foreign key)
like (1 = likes, 0 = dislikes)

ReplyLike (Table that shows which user liked which replies)
id
reply (foreign key)
user (foreign key)
like (1 = likes, 0 = dislikes)

这似乎是一个很好的使用模式，还是有更好的方法来创建这种结构？

Answer 1

我将提出如下仅具有2个表的结构：

Comment:
id
user (foreign key)
post (foreign key)
comment_text
parent_comment_id (null or -1 if a new comment and comment_id of the parent if a reply)


CommentLike (Table that shows which user liked which comments):
id
comment (foreign key)
user (foreign key)
like (1 = likes, 0 = dislikes)

• 之所以这样做，是因为reply本身就是comment，只是某些父注释的子对象。因此，我不会将其设置为单独的实体。
• 请注意，您将需要执行删除操作并删除所有已删除其当前注释为parent_id的注释。