Rails嵌套的rources和路線，以及如何在route.rb設置它們

Question

我想我有一個處理嵌套的路線（偉大的網址助手和訪問等等）和嵌套的資源在形式與accept_nested_attributes_for但我該怎麼用在路線，因爲我看到兩個：

resources :schools do 
    resources :documents 
end 

也

resources :schools :has_many => :documents 
end 

請你能告訴我它們之間的差異。
顯然has_many是一對多的關係。它是否會產生路徑幫助程序，並且需要正確的路由，並且爲了阻止這種暗示的關係，沒有？只是路徑助手（/學校/文件），以及如果我想要在學校中使用多種資源（書籍，文檔等），我可以將其添加到do-end模塊中的第一種方式，但第二種方法，只有兩行，每個has_many一個？
雖然我讀過的指南和API的我不太來到這裏的區別/使用，任何人都可以提供兩者之間的區別的一個明確的解釋（形式爲「一個做X，而B則Y」會很好）:)

哦，當然它們與模型中的has_many有什麼關係 - 所以我想這些關係可以在has_many模型中，控制器（主要是通過使用路徑）並在視圖中（通過具有嵌套屬性的表單）。

Answer 1

他們都做同樣的事情，它由你來選擇，我更喜歡哪一個

的做塊格式作爲其更易於閱讀

BTW用的has_many格式，你可以對多個嵌套做:has_many => [:docs, :otherthings]路線

Answer 2

我認爲的has_many語法是一些添加到Rails 2爲那些不喜歡的塊語法速記。您可以看到關於它的博客文章here。我只是試了一下，看來Rails 3忽略了has_many選項。所以輸出對我來說是：

resources :schools do 
    resources :documents 
end 

創建的路線：

school_documents GET /schools/:school_id/documents(.:format)   {:action=>"index", :controller=>"documents"} 
        POST /schools/:school_id/documents(.:format)   {:action=>"create", :controller=>"documents"} 
new_school_document GET /schools/:school_id/documents/new(.:format)  {:action=>"new", :controller=>"documents"} 
edit_school_document GET /schools/:school_id/documents/:id/edit(.:format) {:action=>"edit", :controller=>"documents"} 
    school_document GET /schools/:school_id/documents/:id(.:format)  {:action=>"show", :controller=>"documents"} 
        PUT /schools/:school_id/documents/:id(.:format)  {:action=>"update", :controller=>"documents"} 
        DELETE /schools/:school_id/documents/:id(.:format)  {:action=>"destroy", :controller=>"documents"} 
      schools GET /schools(.:format)        {:action=>"index", :controller=>"schools"} 
        POST /schools(.:format)        {:action=>"create", :controller=>"schools"} 
      new_school GET /schools/new(.:format)       {:action=>"new", :controller=>"schools"} 
     edit_school GET /schools/:id/edit(.:format)      {:action=>"edit", :controller=>"schools"} 
       school GET /schools/:id(.:format)       {:action=>"show", :controller=>"schools"} 
        PUT /schools/:id(.:format)       {:action=>"update", :controller=>"schools"} 
        DELETE /schools/:id(.:format)       {:action=>"destroy", :controller=>"schools"} 

而

resources :schools :has_many => :documents 

創建的路線：

schools GET /schools(.:format)   {:action=>"index", :controller=>"schools"} 
      POST /schools(.:format)   {:action=>"create", :controller=>"schools"} 
new_school GET /schools/new(.:format)  {:action=>"new", :controller=>"schools"} 
edit_school GET /schools/:id/edit(.:format) {:action=>"edit", :controller=>"schools"} 
    school GET /schools/:id(.:format)  {:action=>"show", :controller=>"schools"} 
      PUT /schools/:id(.:format)  {:action=>"update", :controller=>"schools"} 
      DELETE /schools/:id(.:format)  {:action=>"destroy", :controller=>"schools"} 

我認爲真正的答案你的問題是那些重新/本來應該做同樣的事情，只是用不同的語法。