帖子,评论,回复和喜欢数据库架构

问题描述 投票:0回答:1

我有一个网站,用户可以在帖子上发表评论或回复评论。用户还可以喜欢回复或评论。但是,在回复表中还有另一个名为reply_to的字段。这是我当前的架构:

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)

这看起来像是一个好的架构,还是有更好的方法来创建这种结构?

mysql database-design relational-database schema
1个回答
2
投票

我建议下面的结构只有2个表:

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)
  • 这样做的原因是因为reply本身只是一个comment,只是一个父母评论的孩子。因此,我不会把它变成一个单独的实体。
  • 请注意,您需要处理删除操作并删除所有删除当前注释的注释,因为它是parent_id。
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