Rails No route matches {:controller=>“devise/produ

Question

I get the below error on my rails application when I try to login or register (I'm using the Devise GEM for logins).

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

All the source code for the application can be found here: https://github.com/rossmc/topsnowboards

I've tried changing the link_to in application.html.erb & product/index.html.erb from:

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

to:

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

But this just throw up more errors.

Interestingly the login features & routes were working fine before I added a partial for the shopping cart, which I placed in the application.html.erb on my last commit. When I remove this partial the routing error disappears but I loose my partial views/cart/_cart.html.erb.

Below is the console dump from when I try to login & run the rake routes command. Thanks in advance for taking the time to look at this.

Console Dump

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)

rake routes

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

Answer 1

Look more closely at your stack trace:

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)

Found it? The log shows it has rendered a bunch of partials, down to cart/_cart.html.erb. It even tells you the error happens on line 49. Now what's on line 49? This:

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

As Ryan rightly points out in the following comment, Rails is looking for a partial scoped under Devise since this is the one under which you're rendering.

More simply, you can just feed it the route name (the one you'll find in rake routes) to which you add _path for a helper to form a URL. products_path ends up being the URL string for products#index.

Which gives in your case

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

Listen to your stack traces, they're talking to you!

Answer 2

Way late to the party, but this was my solution. Simply prefix the controller as absolute with "/". A little long and ugly, but returns link for a controller/action or a route passed. I use it to build menus driven from sql table.

  # 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