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我是 Rails 新手，有一个棘手的路由问题。我有一个嵌套集合的资源，它映射到嵌套集合类型的控制器。但是，集合的名称不会映射到我要将请求路由到的控制器。

基本上用户模型有很多追随者和追随者。这 2 个集合映射到 Follow 模型，该模型具有使用标准 crud 方法的跟随控制器。

用户.rb：

class User < ActiveRecord::Base
  has_many :followers, class_name: Follow, foreign_key: :user_id, dependent: :destroy
  has_many :followings, class_name: Follow, foreign_key: :follower_id, dependent: :destroy
end

跟随.rb：

class Follow < ActiveRecord::Base

  belongs_to :user, counter_cache: :followers_count
  belongs_to :follower, class_name: 'User', counter_cache: :followings_count

  attr_accessible :user, :user_id, :follower, :follower_id

  validates_presence_of :user_id, :follower_id
  validates_uniqueness_of :user_id, scope: :follower_id

end

follow_controller.rb：

def index
  respond_with @follows
end

路线.rb：

resources :users do
    resources :followers, :controller => "follows"
    resources :following, :controller => "follows"
end

耙路线：

api_v1_user_followers GET    /api/v1/users/:user_id/followers(.:format)              api/v1/follows#index
                                POST   /api/v1/users/:user_id/followers(.:format)              api/v1/follows#create
       new_api_v1_user_follower GET    /api/v1/users/:user_id/followers/new(.:format)          api/v1/follows#new
      edit_api_v1_user_follower GET    /api/v1/users/:user_id/followers/:id/edit(.:format)     api/v1/follows#edit
           api_v1_user_follower GET    /api/v1/users/:user_id/followers/:id(.:format)          api/v1/follows#show
                                PUT    /api/v1/users/:user_id/followers/:id(.:format)          api/v1/follows#update
                                DELETE /api/v1/users/:user_id/followers/:id(.:format)          api/v1/follows#destroy
    api_v1_user_following_index GET    /api/v1/users/:user_id/following(.:format)              api/v1/follows#index
                                POST   /api/v1/users/:user_id/following(.:format)              api/v1/follows#create
      new_api_v1_user_following GET    /api/v1/users/:user_id/following/new(.:format)          api/v1/follows#new
     edit_api_v1_user_following GET    /api/v1/users/:user_id/following/:id/edit(.:format)     api/v1/follows#edit
          api_v1_user_following GET    /api/v1/users/:user_id/following/:id(.:format)          api/v1/follows#show
                                PUT    /api/v1/users/:user_id/following/:id(.:format)          api/v1/follows#update
                                DELETE /api/v1/users/:user_id/following/:id(.:format)          api/v1/follows#destroy

我尝试添加 :controller => 'follows' 并且确实将两个嵌套的集合路由正确映射到 follow_controller。但是我收到此错误：

Started GET "/api/v1/users/2/following?auth_token=qhcT6CSHi3S7KrEnJtq6" for 10.0.1.72 at 2013-04-22 09:52:43 -0600

ActionController::RoutingError (uninitialized constant Api::V1::FollowingController):

任何有关如何正确解决此问题的想法将不胜感激。

谢谢，

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