Rails中复杂的路由和URL生成

Question

我有一个组模型，其中has_many文章模型。我想使用以下网址格式“{group_id}/{article_id}”。

所以我写了这些航线代码：

resource :groups do 
    resource :articles 
end 
match ':group_id/:id(.:format)', :to => 'articles#show', :as => :article 
match ':id', :to => 'groups#show', :as => :group 

但导轨无法生成对于组记录和文章记录正确的URL。我如何更换自动生成的article_path和group_path以匹配我的路线？

Answer 1

您遇到问题是因为您没有注意到多元化。当你定义一个单一的路径时，Rails不会将它视为一个集合，你可以用id来引用每个成员。你不是想为这两个群体和文章复数resources：

resources :groups do 
    resources :articles 
end 

生成以下路线：

group_articles GET /groups/:group_id/articles(.:format)   {:action=>"index", :controller=>"articles"} 
        POST /groups/:group_id/articles(.:format)   {:action=>"create", :controller=>"articles"} 
new_group_article GET /groups/:group_id/articles/new(.:format)  {:action=>"new", :controller=>"articles"} 
edit_group_article GET /groups/:group_id/articles/:id/edit(.:format) {:action=>"edit", :controller=>"articles"} 
    group_article GET /groups/:group_id/articles/:id(.:format)  {:action=>"show", :controller=>"articles"} 
        PUT /groups/:group_id/articles/:id(.:format)  {:action=>"update", :controller=>"articles"} 
        DELETE /groups/:group_id/articles/:id(.:format)  {:action=>"destroy", :controller=>"articles"} 
      groups GET /groups(.:format)        {:action=>"index", :controller=>"groups"} 
        POST /groups(.:format)        {:action=>"create", :controller=>"groups"} 
     new_group GET /groups/new(.:format)       {:action=>"new", :controller=>"groups"} 
     edit_group GET /groups/:id/edit(.:format)     {:action=>"edit", :controller=>"groups"} 
      group GET /groups/:id(.:format)       {:action=>"show", :controller=>"groups"} 
        PUT /groups/:id(.:format)       {:action=>"update", :controller=>"groups"} 
        DELETE /groups/:id(.:format)       {:action=>"destroy", :controller=>"groups"} 

如果你想离开关groups和articles段你可以通过:path => ''到每个resources的定义，但是您将不得不谨慎行事，因为对http://example.com/1/2的任何请求都将映射到群组下的文章，并且不会对最终用户和漫游器产生影响。