ruby-on-rails - Rails 3のhamlビューでデバイスを使用した名前付きルート

Question

レーキルートから、アプリケーションでこれを取得します

                 new_admin_session GET    /admins/sign_in(.:format)                     {:controller=>"devise/sessions", :action=>"new"}
                     admin_session POST   /admins/sign_in(.:format)                     {:controller=>"devise/sessions", :action=>"create"}
             destroy_admin_session GET    /admins/sign_out(.:format)                    {:controller=>"devise/sessions", :action=>"destroy"}
                    admin_password POST   /admins/password(.:format)                    {:controller=>"devise/passwords", :action=>"create"}
                new_admin_password GET    /admins/password/new(.:format)                {:controller=>"devise/passwords", :action=>"new"}
               edit_admin_password GET    /admins/password/edit(.:format)               {:controller=>"devise/passwords", :action=>"edit"}
                    admin_password PUT    /admins/password(.:format)                    {:controller=>"devise/passwords", :action=>"update"}
                admin_registration POST   /admins(.:format)                             {:controller=>"devise/registrations", :action=>"create"}
            new_admin_registration GET    /admins/sign_up(.:format)                     {:controller=>"devise/registrations", :action=>"new"}
           edit_admin_registration GET    /admins/edit(.:format)                        {:controller=>"devise/registrations", :action=>"edit"}
                admin_registration PUT    /admins(.:format)                             {:controller=>"devise/registrations", :action=>"update"}
                admin_registration DELETE /admins(.:format)                             {:controller=>"devise/registrations", :action=>"destroy"}
                  new_user_session GET    /users/sign_in(.:format)                      {:controller=>"devise/sessions", :action=>"new"}
                      user_session POST   /users/sign_in(.:format)                      {:controller=>"devise/sessions", :action=>"create"}
              destroy_user_session GET    /users/sign_out(.:format)                     {:controller=>"devise/sessions", :action=>"destroy"}
                     user_password POST   /users/password(.:format)                     {:controller=>"devise/passwords", :action=>"create"}
                 new_user_password GET    /users/password/new(.:format)                 {:controller=>"devise/passwords", :action=>"new"}
                edit_user_password GET    /users/password/edit(.:format)                {:controller=>"devise/passwords", :action=>"edit"}
                     user_password PUT    /users/password(.:format)                     {:controller=>"devise/passwords", :action=>"update"}
                 user_registration POST   /users(.:format)                              {:controller=>"devise/registrations", :action=>"create"}
             new_user_registration GET    /users/sign_up(.:format)                      {:controller=>"devise/registrations", :action=>"new"}
            edit_user_registration GET    /users/edit(.:format)                         {:controller=>"devise/registrations", :action=>"edit"}
                 user_registration PUT    /users(.:format)                              {:controller=>"devise/registrations", :action=>"update"}
                 user_registration DELETE /users(.:format)                              {:controller=>"devise/registrations", :action=>"destroy"}
                              root        /(.:format)                                   {:controller=>"devise/sessions", :action=>"new"}
        change_authorization_rules GET    /authorization_rules/change(.:format)         {:controller=>"authorization_rules", :action=>"change"}
suggest_change_authorization_rules GET    /authorization_rules/suggest_change(.:format) {:controller=>"authorization_rules", :action=>"suggest_change"}
         graph_authorization_rules GET    /authorization_rules/graph(.:format)          {:controller=>"authorization_rules", :action=>"graph"}
               authorization_rules GET    /authorization_rules(.:format)                {:controller=>"authorization_rules", :action=>"index"}
              authorization_usages GET    /authorization_usages(.:format)               {:controller=>"authorization_usages", :action=>"index"}

ハムルビューで私は

%html
%head
  %title="Devise Demo"
  = stylesheet_link_tag :all 
  = javascript_include_tag :defaults 
  = csrf_meta_tag 
%body
  %p.notice=notice
  %p.alert=alert
  - if current_user
    = "Hello #{current_user.email}  ("
    = link_to 'Not you?', destroy_admin_session
    = ")"

しかし、私はエラーが発生します

undefined local variable or method `destroy_admin_session' for #<#<Class:0x7f66ce2d3610>:0x7f66ce2cd1c0>

Rails 3 の名前付きルートに関する明白なことが明らかに欠けています

ブラッド

Answer 1

トリックrake routesは、最初の列に示されているパスがヘルパーの名前ではなく、プレフィックスであることです。_url_path

を使用しdestroy_admin_session_pathます。

Answer 2

末尾の user _url

Answer 3

destroy_admin_session次のように書く必要がありますdestroy_admin_session_path