Rails 没有路线匹配 {:controller=>"devise/products"}答案

【问题标题】：Rails No route matches {:controller=>"devise/products"}Rails 没有路线匹配 {:controller=>"devise/products"}
【发布时间】：2012-11-20 10:08:12
【问题描述】：

当我尝试登录或注册时，我的 rails 应用程序出现以下错误（我正在使用 Devise GEM 登录）。

Routing Error
No route matches {:controller=>"devise/products"}

应用程序的所有源代码都可以在这里找到：https://github.com/rossmc/topsnowboards

我尝试将 application.html.erb 和 product/index.html.erb 中的 link_to 更改为：

<%= link_to 'sign in', new_user_session_path  %>

到：

<%= link_to 'sign in', :controller => "/products", new_user_session_path %>.

但这只会引发更多错误。

有趣的是，在我为购物车添加部分内容之前，登录功能和路线运行良好，我在上次提交时将其放入 application.html.erb 中。当我删除此部分时，路由错误消失了，但我丢失了部分 views/cart/_cart.html.erb。

下面是我尝试登录并运行 rake routes 命令时的控制台转储。提前感谢您抽出宝贵时间查看此内容。

控制台转储

Connecting to database specified by database.yml
DEPRECATION WARNING: Passing a block to devise_for is deprecated. Please remove the block from devise_for (only the block, the call to devise_for must still exist) and call devise_scope :user do ... end with the block instead. (called from block in <top (required)> at C:/Users/Ross/Documents/NCI-HDip/Server Side/PROJ - Server Side/site/config/routes.rb:16)


Started GET "/users/sign_up" for 127.0.0.1 at 2012-12-02 22:15:33 +0000
Processing by Devise::RegistrationsController#new as HTML
  Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/devise-2.1.2/app/views/devise/shared/_links.erb (2.0ms)
  Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/devise-2.1.2/app/views/devise/registrations/new.html.erb within layouts/application (106.0ms)
  [1m[36mProduct Load (0.0ms)[0m  [1mSELECT DISTINCT product_type FROM "products" [0m
  Rendered products/_product_typeDistinctList.html (54.0ms)
  Rendered cart/_cart.html.erb (91.0ms)
Completed 500 Internal Server Error in 834ms

ActionController::RoutingError (No route matches {:controller=>"devise/products"}):
  app/views/cart/_cart.html.erb:49:in `_app_views_cart__cart_html_erb__355880610_32436408'
  app/views/layouts/application.html.erb:53:in `_app_views_layouts_application_html_erb__478801204_33653088'


  Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/actionpack-3.2.8/lib/action_dispatch/middleware/templates/rescues/routing_error.erb within rescues/layout (1.0ms)


Started GET "/cart/3" for 127.0.0.1 at 2012-12-02 22:15:39 +0000
Processing by CartController#add as HTML
  Parameters: {"id"=>"3"}
Completed 401 Unauthorized in 1ms


Started GET "/users/sign_in" for 127.0.0.1 at 2012-12-02 22:15:39 +0000
Processing by Devise::SessionsController#new as HTML
  Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/devise-2.1.2/app/views/devise/shared/_links.erb (1.0ms)
  Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/devise-2.1.2/app/views/devise/sessions/new.html.erb within layouts/application (11.0ms)
  [1m[35mProduct Load (0.0ms)[0m  SELECT DISTINCT product_type FROM "products" 
  Rendered products/_product_typeDistinctList.html (1.0ms)
  Rendered cart/_cart.html.erb (4.0ms)
Completed 500 Internal Server Error in 54ms

ActionController::RoutingError (No route matches {:controller=>"devise/products"}):
  app/views/cart/_cart.html.erb:49:in `_app_views_cart__cart_html_erb__355880610_32436408'
  app/views/layouts/application.html.erb:53:in `_app_views_layouts_application_html_erb__478801204_33653088'


  Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/actionpack-3.2.8/lib/action_dispatch/middleware/templates/rescues/routing_error.erb within rescues/layout (1.0ms)


Started GET "/users/sign_in" for 127.0.0.1 at 2012-12-02 22:15:43 +0000
Processing by Devise::SessionsController#new as HTML
  Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/devise-2.1.2/app/views/devise/shared/_links.erb (1.0ms)
  Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/devise-2.1.2/app/views/devise/sessions/new.html.erb within layouts/application (9.0ms)
  [1m[36mProduct Load (0.0ms)[0m  [1mSELECT DISTINCT product_type FROM "products" [0m
  Rendered products/_product_typeDistinctList.html (1.0ms)
  Rendered cart/_cart.html.erb (4.0ms)
Completed 500 Internal Server Error in 51ms

ActionController::RoutingError (No route matches {:controller=>"devise/products"}):
  app/views/cart/_cart.html.erb:49:in `_app_views_cart__cart_html_erb__355880610_32436408'
  app/views/layouts/application.html.erb:53:in `_app_views_layouts_application_html_erb__478801204_33653088'


  Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/actionpack-3.2.8/lib/action_dispatch/middleware/templates/rescues/routing_error.erb within rescues/layout (0.0ms)

耙路

C:\Users\Ross\Documents\NCI-HDip\Server Side\PROJ - Server Side\site>rake routes
                profiles GET    /profiles(.:format)                            profiles#index
                         POST   /profiles(.:format)                            profiles#create
             new_profile GET    /profiles/new(.:format)                        profiles#new
            edit_profile GET    /profiles/:id/edit(.:format)                   profiles#edit
                 profile GET    /profiles/:id(.:format)                        profiles#show
                         PUT    /profiles/:id(.:format)                        profiles#update
                         DELETE /profiles/:id(.:format)                        profiles#destroy
         lineitems_index GET    /lineitems/index(.:format)                     lineitems#index
          lineitems_show GET    /lineitems/show(.:format)                      lineitems#show
           lineitems_new GET    /lineitems/new(.:format)                       lineitems#new
          lineitems_edit GET    /lineitems/edit(.:format)                      lineitems#edit
         order_lineitems GET    /orders/:order_id/lineitems(.:format)          lineitems#index
                         POST   /orders/:order_id/lineitems(.:format)          lineitems#create
      new_order_lineitem GET    /orders/:order_id/lineitems/new(.:format)      lineitems#new
     edit_order_lineitem GET    /orders/:order_id/lineitems/:id/edit(.:format) lineitems#edit
          order_lineitem GET    /orders/:order_id/lineitems/:id(.:format)      lineitems#show
                         PUT    /orders/:order_id/lineitems/:id(.:format)      lineitems#update
                         DELETE /orders/:order_id/lineitems/:id(.:format)      lineitems#destroy
                  orders GET    /orders(.:format)                              orders#index
                         POST   /orders(.:format)                              orders#create
               new_order GET    /orders/new(.:format)                          orders#new
              edit_order GET    /orders/:id/edit(.:format)                     orders#edit
                   order GET    /orders/:id(.:format)                          orders#show
                         PUT    /orders/:id(.:format)                          orders#update
                         DELETE /orders/:id(.:format)                          orders#destroy
                         GET    /orders(.:format)                              orders#index
                         POST   /orders(.:format)                              orders#create
                         GET    /orders/new(.:format)                          orders#new
                         GET    /orders/:id/edit(.:format)                     orders#edit
                         GET    /orders/:id(.:format)                          orders#show
                         PUT    /orders/:id(.:format)                          orders#update
                         DELETE /orders/:id(.:format)                          orders#destroy
        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
                products GET    /products(.:format)                            products#index
                         POST   /products(.:format)                            products#create
             new_product GET    /products/new(.:format)                        products#new
            edit_product GET    /products/:id/edit(.:format)                   products#edit
                 product GET    /products/:id(.:format)                        products#show
                         PUT    /products/:id(.:format)                        products#update
                         DELETE /products/:id(.:format)                        products#destroy
              cart_index GET    /cart/index(.:format)                          cart#index
               site_home GET    /site/home(.:format)                           site#home
               site_shop GET    /site/shop(.:format)                           site#shop
              site_guide GET    /site/guide(.:format)                          site#guide
              site_links GET    /site/links(.:format)                          site#links
            site_contact GET    /site/contact(.:format)                        site#contact
                    cart        /cart(.:format)                                cart#index
                                /cart/:id(.:format)                            cart#add
                                /cart/remove/:id(.:format)                     cart#remove
               clearCart        /clearCart(.:format)                           cart#clearCart
                    home        /home(.:format)                                site#home
                    shop        /shop(.:format)                                products#index
                   guide        /guide(.:format)                               site#guide
                   links        /links(.:format)                               site#links
                 contact        /contact(.:format)                             site#contact
                checkout        /checkout(.:format)                            cart#createOrder
                                /product_type/:id(.:format)                    products#product_type
               myprofile        /myprofile(.:format)                           profiles#myprofile
                    root        /                                              site#home

【问题讨论】：

您是否为控制器操作创建了路由？
（免责声明：我是 Spree 的社区经理）您没有将Spree 用于您的购物车有什么原因吗？看起来您的应用实现了 Spree 已经免费提供给您的许多常见的基本工作流程。
嗨瑞恩，这是一个大学项目。但是我对 Spree 进行了一些研究，在开始这门网络技术课程之前，我一直在玩 Magento，但现在我期待在完成课程后使用 Spree。感谢您的帮助。

标签： ruby-on-rails model-view-controller devise routes partials

【解决方案1】：

更仔细地查看您的堆栈跟踪：

Started GET "/users/sign_up" for 127.0.0.1 at 2012-12-02 18:47:23 -0500
Processing by Devise::RegistrationsController#new as HTML
  Rendered /home/jon/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/devise-2.1.2/app/views/devise/shared/_links.erb (0.3ms)
  Rendered /home/jon/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/devise-2.1.2/app/views/devise/registrations/new.html.erb within layouts/application (2.3ms)
  Rendered products/_search.html.erb (0.3ms)
  Product Load (0.1ms)  SELECT DISTINCT product_type FROM "products" 
  Rendered products/_product_typeDistinctList.html (0.5ms)
  Rendered cart/_cart.html.erb (0.7ms)
Completed 500 Internal Server Error in 14ms

ActionController::RoutingError (No route matches {:controller=>"devise/products"}):
  app/views/cart/_cart.html.erb:49:in `_app_views_cart__cart_html_erb___3785130162884562793_21827300'
  app/views/layouts/application.html.erb:59:in `_app_views_layouts_application_html_erb___2170720560050181211_22251920'


  Rendered /home/jon/.rbenv/versions/1.9.3-p0/lib/ruby/gems/1.9.1/gems/actionpack-3.2.8/lib/action_dispatch/middleware/templates/rescues/routing_error.erb within rescues/layout (0.5ms)

找到了吗？日志显示它已经渲染了一堆部分，直到cart/_cart.html.erb。它甚至告诉你错误发生在第 49 行。现在第 49 行是什么？这个：

<%= link_to 'Keep Shopping', :controller => :products %>
<%= link_to 'Empty Cart', :controller => "cart", :action => "clearCart" %>
<%= link_to 'Proceed to Check Out', :controller => "cart", :action => "createOrder" %>

正如 Ryan 在 the following comment 中正确指出的那样，Rails 正在寻找 Devise 下的部分作用域，因为这是您正在渲染的那个。

更简单地说，您只需向其提供路由名称（您将在 rake routes 中找到的名称），您可以在其中添加 _path 以便帮助器形成 URL。 products_path 最终成为 products#index 的 URL 字符串。

在你的情况下哪个给出

<%= link_to 'Keep Shopping', products_path %>
<%= link_to 'Empty Cart', clearCart_path %>
<%= link_to 'Proceed to Check Out', checkout_path %>

听听你的堆栈跟踪，他们在和你说话！

【讨论】：

您的解决方案是正确的，但它失败的原因却不是。 link_to 可以与 :controller => :products 一起工作，但是因为他在命名空间（“设计”）范围内呈现这个部分，所以它将命名空间作为控制器的前缀，因此正在寻找 @987654333 @.
感谢 Ryan 和 Jon，我对此很陌生，但正在了解路线并阅读终端窗口输出，这就是我们在大学教程中定义它们的方式，将来我'将遵循 rake 路线中的内容并尝试完全理解它。

【解决方案2】：

派对迟到了，但这是我的解决方案。只需在控制器前面加上“/”作为绝对控制器。有点长而且丑陋，但返回控制器/动作的链接或通过的路由。我用它来构建由 sql 表驱动的菜单。

  # dynamic link_to
  def menu_link(params, html_options=nil)
    if params[:controller].present?
      link_to params[:display], {controller: "/#{params[:controller]}", action: params[:resource]}, default_navigation_options(html_options)
    elsif params[:route].present?
      link_to params[:display], params[:route], default_navigation_options(html_options)
    end
  end

【讨论】：