#94 ActiveResource Basics

Rails应用间通信

最新推荐文章于 2017-11-25 11:03:00 发布

原创最新推荐文章于 2017-11-25 11:03:00 发布 · 106 阅读

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本篇介绍如何使用ActiveResource实现Rails应用间的轻松通信。通过具体代码示例展示了如何在一个应用中调用另一个应用的资源，包括从产品模型获取数据并在帖子模型中使用。

ActiveResource allows you to easily communicate between multiple Rails applications. See how in this episode.

# models/product.rb
class Product < ActiveResource::Base
  self.site = "http://localhost:3000"
end

# models/post.rb
class Post < ActiveRecord::Base
  def product
    @product ||= Product.find(product_id) unless product_id.blank?
  end
end

<!-- views/posts/edit.html.erb -->
<p>
  <%= f.label :product_id %>
  <%= f.collection_select :product_id, Product.find(:all), :id, :name %>
</p>

<!-- views/posts/show.html.erb -->
<% if @post.product %>
  <strong><%=h @post.product.name %></strong>
<% end %>