Rails 3.2.9路由到错误的控制器

Question

我在我的应用程序中使用了devise和cancan。 两者都在工作。

我有一个User模型，我刚刚添加（使用了脚手架）一个名为Purchase的新模型。

在添加购买模型之前，我还有一个仪表板控制器（目前仅显示一个页面， dashboard#show ），并且是在localhost:3000/dashboard登录后加载的页面。

当用户未登录时，我可以访问localhost:3000/purchases 。 但是当用户登录后，我无法。 我可以访问purchase/1但不能访问/purchases 。

知道这里发生了什么吗？ 它给我的错误是

“没有路线匹配{：action =>“ show”，：controller =>“ dashboard”}“

仪表板控制器

class DashboardController < ApplicationController
    def show
        @user = User.find(params[:id])
        authorize! :read, @user
    end

end

Routes.rb

App::Application.routes.draw do
  root :to => 'static_pages#index'
  match '/about', :to => 'static_pages#about'
  match '/error', :to => 'static_pages#error'
  devise_for :users

  resources :users

  resources :dashboard

  resource :visitors, :only => :create # POST to visitor_path to create a visitor

  resources :purchases

耙道

                    root        /                              static_pages#index
                   about        /about(.:format)               static_pages#about
                   error        /error(.:format)               static_pages#error
        new_user_session GET    /users/sign_in(.:format)       devise/sessions#new
            user_session POST   /users/sign_in(.:format)       devise/sessions#create
    destroy_user_session DELETE /users/sign_out(.:format)      devise/sessions#destroy
           user_password POST   /users/password(.:format)      devise/passwords#create
       new_user_password GET    /users/password/new(.:format)  devise/passwords#new
      edit_user_password GET    /users/password/edit(.:format) devise/passwords#edit
                         PUT    /users/password(.:format)      devise/passwords#update
cancel_user_registration GET    /users/cancel(.:format)        devise/registrations#cancel
       user_registration POST   /users(.:format)               devise/registrations#create
   new_user_registration GET    /users/sign_up(.:format)       devise/registrations#new
  edit_user_registration GET    /users/edit(.:format)          devise/registrations#edit
                         PUT    /users(.:format)               devise/registrations#update
                         DELETE /users(.:format)               devise/registrations#destroy
                   users GET    /users(.:format)               users#index
                         POST   /users(.:format)               users#create
                new_user GET    /users/new(.:format)           users#new
               edit_user GET    /users/:id/edit(.:format)      users#edit
                    user GET    /users/:id(.:format)           users#show
                         PUT    /users/:id(.:format)           users#update
                         DELETE /users/:id(.:format)           users#destroy
         dashboard_index GET    /dashboard(.:format)           dashboard#index
                         POST   /dashboard(.:format)           dashboard#create
           new_dashboard GET    /dashboard/new(.:format)       dashboard#new
          edit_dashboard GET    /dashboard/:id/edit(.:format)  dashboard#edit
               dashboard GET    /dashboard/:id(.:format)       dashboard#show
                         PUT    /dashboard/:id(.:format)       dashboard#update
                         DELETE /dashboard/:id(.:format)       dashboard#destroy
                visitors POST   /visitors(.:format)            visitors#create
               purchases GET    /purchases(.:format)           purchases#index
                         POST   /purchases(.:format)           purchases#create
            new_purchase GET    /purchases/new(.:format)       purchases#new
           edit_purchase GET    /purchases/:id/edit(.:format)  purchases#edit
                purchase GET    /purchases/:id(.:format)       purchases#show
                         PUT    /purchases/:id(.:format)       purchases#update
                         DELETE /purchases/:id(.:format)       purchases#destroy

Answer 1

由于仪表板是单个资源，因此您需要将其设置为：

resource :dashboard

这是资源单数。

我的猜测是，在已登录用户的购买页面上，您会看到诸如link_to "Dashboard", dashboard_path ，但是设置了资源后，show操作将始终需要一个id。 由于您没有提供路由，因此会遇到路由异常。

您可以在此处找到有关单一资源的一些信息： http : //guides.rubyonrails.org/routing.html#singular-resources

Answer 2

单数必须是resource ，否则resources

resource :dashboard
resource :visitor, :only => :create

要么

resources :dashboards

取决于任务是什么