如何在 Rails 中为具有多个链接的项目配置模型 ActiveRecord

发布于 2024-11-25 20:59:04 字数 419 浏览 6 评论 0原文

我有两个模型，项目和链接。每个链接都会将两个项目连接在一起，只有两个。建立模型关系的最佳方式是什么？

我目前有这个：

class Item < ActiveRecord::Base
  has_many  :links
end


class Link < ActiveRecord::Base
  belongs_to :item1, :class_name => "Item", :foreign_key => "item1_name"
  belongs_to :item2, :class_name => "Item", :foreign_key => "item2_name"
end

这是正确的吗？当我想列出每个项目的链接时，以后会遇到任何问题吗？

请推荐我更好的选择，谢谢。

原文

I have two models, Item and Link. Each link is going to join two items together, only two. What is the best way to set up the model relationship?

I currently have this:

class Item < ActiveRecord::Base
  has_many  :links
end


class Link < ActiveRecord::Base
  belongs_to :item1, :class_name => "Item", :foreign_key => "item1_name"
  belongs_to :item2, :class_name => "Item", :foreign_key => "item2_name"
end

Is this correct? Will I run into any problems later on when I wanted to list the links for each item?

Please recommend me better alternatives, Thanks.

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