从某些页面获取路由错误

Question

I have this route

profile GET /contacts/:id(.:format) {:controller=>"my_devise/contacts", :action=>"profile"}

This is my controllers/application_controller.rb

class ApplicationController < ActionController::Base
  protect_from_forgery

  before_filter :get_current_user

    def get_current_user
        @current_user = current_user
    end

end

If i have this link in my view/layouts/application.html.erb file <%= link_to "Profile", profile_path(@current_user) %> on the url http://localhost:3000/contacts/1 , i have no errors, but if i try to hit the url http://localhost:3000/contacts , I get the error below

Routing Error

No route matches {:controller=>"my_devise/contacts", :action=>"profile"}

If i remove the link in my application.html.erb file and hit http://localhost:3000/contacts , the error goes away.

Why would that link cause this error?

EDIT

Full routes file

$ rake routes
          users_sign_out GET    /users/sign_out(.:format)      {:controller=>"devise/sessions", :action=>"destroy"}
           users_sign_in GET    /users/sign_in(.:format)       {:controller=>"my_devise/sessions", :action=>"new"}
                    home GET    /home(.:format)                {:action=>"index", :controller=>"my_devise/sessions"}
                contacts GET    /contacts(.:format)            {:action=>"list", :controller=>"my_devise/contacts"}
                 profile GET    /contacts/:id(.:format)        {:controller=>"my_devise/contacts", :action=>"profile"}
            edit_profile GET    /contacts/:id/edit(.:format)   {:controller=>"my_devise/contacts", :action=>"edit"}
                         POST   /contacts/:id/edit(.:format)   {:controller=>"my_devise/contacts", :action=>"update_user"}
                    more GET    /more/:id(.:format)            {:controller=>"my_devise/contacts", :action=>"more"}
                         POST   /home(.:format)                {:action=>"create_new_user", :controller=>"my_devise/sessions"}
           users_sign_up GET    /users/sign_up(.:format)       {:controller=>"my_devise/registrations", :action=>"new"}
                         POST   /users/sign_up(.:format)       {:controller=>"my_devise/registrations", :action=>"new"}
        new_user_session GET    /users/sign_in(.:format)       {:action=>"new", :controller=>"devise/sessions"}
            user_session POST   /users/sign_in(.:format)       {:action=>"create", :controller=>"devise/sessions"}
    destroy_user_session DELETE /users/sign_out(.:format)      {:action=>"destroy", :controller=>"devise/sessions"}
           user_password POST   /users/password(.:format)      {:action=>"create", :controller=>"devise/passwords"}
       new_user_password GET    /users/password/new(.:format)  {:action=>"new", :controller=>"devise/passwords"}
      edit_user_password GET    /users/password/edit(.:format) {:action=>"edit", :controller=>"devise/passwords"}
                         PUT    /users/password(.:format)      {:action=>"update", :controller=>"devise/passwords"}
cancel_user_registration GET    /users/cancel(.:format)        {:action=>"cancel", :controller=>"devise/registrations"}
       user_registration POST   /users(.:format)               {:action=>"create", :controller=>"devise/registrations"}
   new_user_registration GET    /users/sign_up(.:format)       {:action=>"new", :controller=>"devise/registrations"}
  edit_user_registration GET    /users/edit(.:format)          {:action=>"edit", :controller=>"devise/registrations"}
                         PUT    /users(.:format)               {:action=>"update", :controller=>"devise/registrations"}
                         DELETE /users(.:format)               {:action=>"destroy", :controller=>"devise/registrations"}
        new_user_session GET    /users/sign_in(.:format)       {:action=>"new", :controller=>"my_devise/sessions"}
                         POST   /users/sign_in(.:format)       {:action=>"create", :controller=>"my_devise/sessions"}
    destroy_user_session DELETE /users/sign_out(.:format)      {:action=>"destroy", :controller=>"my_devise/sessions"}
                         POST   /users/password(.:format)      {:action=>"create", :controller=>"devise/passwords"}
                         GET    /users/password/new(.:format)  {:action=>"new", :controller=>"devise/passwords"}
                         GET    /users/password/edit(.:format) {:action=>"edit", :controller=>"devise/passwords"}
                         PUT    /users/password(.:format)      {:action=>"update", :controller=>"devise/passwords"}
                         GET    /users/cancel(.:format)        {:action=>"cancel", :controller=>"my_devise/registrations"}
                         POST   /users(.:format)               {:action=>"create", :controller=>"my_devise/registrations"}
                         GET    /users/sign_up(.:format)       {:action=>"new", :controller=>"my_devise/registrations"}
                         GET    /users/edit(.:format)          {:action=>"edit", :controller=>"my_devise/registrations"}
                         PUT    /users(.:format)               {:action=>"update", :controller=>"my_devise/registrations"}
                         DELETE /users(.:format)               {:action=>"destroy", :controller=>"my_devise/registrations"}
              home_index GET    /home/index(.:format)          {:controller=>"home", :action=>"index"}
                    root        /                              {:controller=>"home", :action=>"index"}
                    root        /                              {:controller=>"home", :action=>"index"}

Answer 1

To answer your actual question, it's because you don't have a route for that ( /contacts - note no id). Your route is /contacts/:id(.:format) - the format is optional, but the id is not. You'll need to make the id optional, too, or create another route.

Answer 2

The routes is like this

contacts GET /contacts(.:format) {:action=>"list", :controller=>"my_devise/contacts"}

Here we have to give the format also. If we give contacts it will throw routing error. So please enter the format also.