Rails的belongs_to的很多车型 [英] Rails belongs_to many models

问题描述

我没有找到SO Rails的协会是有点像我的问题了一些问题，但对我的生活中，我似乎无法理解如何使用 belongs_to的多个模型。

I did find some questions on SO about Rails associations that are somewhat like my question, but for the life of me I can't seem to understand how to use belongs_to multiple models.

这里的表结构的我打算有：

User
 id

Post
 id
 user_id #foreign key; a post belongs to a User aka "Who created this post"

Comment
 id
 user_id #foreign key; a comment belongs to a User aka "Who made this comment"
 post_id #foreign key; a comment belongs to a Post aka "What post this comment is for"

和中的协会的：

User
 has_many :posts
 has_many :comments

Post
 belongs_to :user
 has_many :comments

Comment
 belongs_to :user
 belongs_to :post

这是正确的做法？

推荐答案

是的，这是正确的做法。

Yes that is the correct approach.

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