如何创建一个ActiveRecord关系到的ActiveResource对象？ [英] How do I create an ActiveRecord relationship to an ActiveResource object?

问题描述

比方说，我正在写一个图书馆申请谁已经有一个人申请一个出版公司。

所以在我的图书馆应用程序，我有

 类Person＆LT;的ActiveResource ::基地
  self.site =htt​​p://api.people.mypublisher.com/
结束
 

现在我想要存储文章 S代表每个人：

 类文章＆LT;的ActiveRecord :: Base的
  belongs_to的：人：为=＆GT; ：作者
结束
 

我想我有如下表在我的数据库：

 文章
ID（PK）|标题（字符串）|主体（文本）| AUTHOR_ID（整数）
 

AUTHOR_ID 是不完全外键，因为我没有一个人桌。剩下几个问题：

1. 我怎么告诉我的人 的ActiveResource 对象，它的has_many 文章？

2. 威尔 Articles.find（：第一）.author 工作？请问 belongs_to的甚至工作因为没有的ActiveRecord 并没有支持表？

解决方案

正如你指出，你放弃了很多，因为的ActiveResource没有在ActiveRecord的确实意义上的关联。

您已经找到了答案，问题＃1。至于问题＃2，当与belongs_to的联想到的ActiveResource模型配置你的ActiveRecord模型文章应该表现得很好。这是Aritcle.find（：第一）.author应该返回你想要的人对象。

Let's say I'm writing a Library application for a publishing company who already has a People application.

So in my Library application I have

class Person < ActiveResource::Base
  self.site = "http://api.people.mypublisher.com/"
end

and now I want to store Articles for each Person:

class Article < ActiveRecord::Base
  belongs_to :person, :as => :author
end

I imagine I'd have the following table in my database:

Articles
id (PK) | title (string) | body (text) | author_id (integer)

author_id isn't exactly a Foreign-Key, since I don't have a People table. That leaves several questions:

1. how do I tell my Person ActiveResource object that it has_many Articles?

2. Will Articles.find(:first).author work? Will belongs_to even work given that there's no ActiveRecord and no backing table?

解决方案

As you point out, you are giving up a lot because ActiveResource does not have associations in the sense that ActiveRecord does.

You have already found the answer to question #1. As for question #2, your ActiveRecord model Article should behave just fine when configured with a "belongs_to" association to an ActiveResource model. That is Aritcle.find(:first).author should return the person object you want.

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