由其 slug 命名的奇异资源（路由）

Question

我有以下 Rails 3 路线：

Hello::Application.routes.draw do
  resources :blogs do
    resources :articles do
      resources :comments
    end
  end
end

通过搜索它们，我们可以找到：

                          GET    /blogs/:blog_id/articles/:article_id/comments(.:format)          {:action=>"index", :controller=>"comments"}
    blog_article_comments POST   /blogs/:blog_id/articles/:article_id/comments(.:format)          {:action=>"create", :controller=>"comments"}
 new_blog_article_comment GET    /blogs/:blog_id/articles/:article_id/comments/new(.:format)      {:action=>"new", :controller=>"comments"}
                          GET    /blogs/:blog_id/articles/:article_id/comments/:id(.:format)      {:action=>"show", :controller=>"comments"}
                          PUT    /blogs/:blog_id/articles/:article_id/comments/:id(.:format)      {:action=>"update", :controller=>"comments"}
     blog_article_comment DELETE /blogs/:blog_id/articles/:article_id/comments/:id(.:format)      {:action=>"destroy", :controller=>"comments"}
edit_blog_article_comment GET    /blogs/:blog_id/articles/:article_id/comments/:id/edit(.:format) {:action=>"edit", :controller=>"comments"}
                          GET    /blogs/:blog_id/articles(.:format)                               {:action=>"index", :controller=>"articles"}
            blog_articles POST   /blogs/:blog_id/articles(.:format)                               {:action=>"create", :controller=>"articles"}
         new_blog_article GET    /blogs/:blog_id/articles/new(.:format)                           {:action=>"new", :controller=>"articles"}
                          GET    /blogs/:blog_id/articles/:id(.:format)                           {:action=>"show", :controller=>"articles"}
                          PUT    /blogs/:blog_id/articles/:id(.:format)                           {:action=>"update", :controller=>"articles"}
             blog_article DELETE /blogs/:blog_id/articles/:id(.:format)                           {:action=>"destroy", :controller=>"articles"}
        edit_blog_article GET    /blogs/:blog_id/articles/:id/edit(.:format)                      {:action=>"edit", :controller=>"articles"}
                          GET    /blogs(.:format)                                                 {:action=>"index", :controller=>"blogs"}
                    blogs POST   /blogs(.:format)                                                 {:action=>"create", :controller=>"blogs"}
                 new_blog GET    /blogs/new(.:format)                                             {:action=>"new", :controller=>"blogs"}
                          GET    /blogs/:id(.:format)                                             {:action=>"show", :controller=>"blogs"}
                          PUT    /blogs/:id(.:format)                                             {:action=>"update", :controller=>"blogs"}
                     blog DELETE /blogs/:id(.:format)                                             {:action=>"destroy", :controller=>"blogs"}
                edit_blog GET    /blogs/:id/edit(.:format)                                        {:action=>"edit", :controller=>"blogs"}

因为每个路由都以相同的根路径 (/blogs) 开头，所以我想通过删除它来缩短地址（当给出 :blog_id 时）。

在这个原因中，我可以有那些路线（我认为它更干燥）：

                          GET    /:blog_id/articles/:article_id/comments(.:format)          {:action=>"index", :controller=>"comments"}
    blog_article_comments POST   /:blog_id/articles/:article_id/comments(.:format)          {:action=>"create", :controller=>"comments"}
 new_blog_article_comment GET    /:blog_id/articles/:article_id/comments/new(.:format)      {:action=>"new", :controller=>"comments"}
                          GET    /:blog_id/articles/:article_id/comments/:id(.:format)      {:action=>"show", :controller=>"comments"}
                          PUT    /:blog_id/articles/:article_id/comments/:id(.:format)      {:action=>"update", :controller=>"comments"}
     blog_article_comment DELETE /:blog_id/articles/:article_id/comments/:id(.:format)      {:action=>"destroy", :controller=>"comments"}
edit_blog_article_comment GET    /:blog_id/articles/:article_id/comments/:id/edit(.:format) {:action=>"edit", :controller=>"comments"}
                          GET    /:blog_id/articles(.:format)                               {:action=>"index", :controller=>"articles"}
            blog_articles POST   /:blog_id/articles(.:format)                               {:action=>"create", :controller=>"articles"}
         new_blog_article GET    /:blog_id/articles/new(.:format)                           {:action=>"new", :controller=>"articles"}
                          GET    /:blog_id/articles/:id(.:format)                           {:action=>"show", :controller=>"articles"}
                          PUT    /:blog_id/articles/:id(.:format)                           {:action=>"update", :controller=>"articles"}
             blog_article DELETE /:blog_id/articles/:id(.:format)                           {:action=>"destroy", :controller=>"articles"}
        edit_blog_article GET    /:blog_id/articles/:id/edit(.:format)                      {:action=>"edit", :controller=>"articles"}
                          GET    /blogs(.:format)                                                 {:action=>"index", :controller=>"blogs"}
                    blogs POST   /blogs(.:format)                                                 {:action=>"create", :controller=>"blogs"}
                 new_blog GET    /blogs/new(.:format)                                             {:action=>"new", :controller=>"blogs"}
                          GET    /blogs/:id(.:format)                                             {:action=>"show", :controller=>"blogs"}
                          PUT    /blogs/:id(.:format)                                             {:action=>"update", :controller=>"blogs"}
                     blog DELETE /blogs/:id(.:format)                                             {:action=>"destroy", :controller=>"blogs"}
                edit_blog GET    /blogs/:id/edit(.:format)                                        {:action=>"edit", :controller=>"blogs"}

按照你的说法，我应该对我当前的路由配置做什么样的改变？

谢谢。

Answer 1

我的意见是你需要看看浅层路线。据我所知，您所要求的自定义无法使用路线资源实现，我认为这不是可取的。

如果您定义了一对多关系，则无需为每个嵌套资源传递标识符。这被认为是不好的做法（有些人，但不是其他人）。例如，而不是这个长网址：

/blog/:blog_id/articles/:article_id/comments/:id
#controller
@blog = Blog.find params[:blog_id]
@article = Blog.find params[:article_id]
@comment = Comment.find params[:id]

你实际上只需要：

/comments/:id
#controller
@comment = Comment.find params[:id]
@article = @comment.article
@blog = @article.blog

更多信息： http://railscasts.com/episodes/139-nested-resources

Answer 2

“资源的嵌套深度不得超过 1 级。” (http://guides.rubyonrails.org/routing.html)

如果 Rails 文档提出了如此强烈的建议，我不知道为什么仍然允许这样做。