Rails Deviseのルートを最小限コードでわかりやすくする。

デフォルトでは、

routes.rb

devise_for :users

パスは、

              Prefix Verb   URI Pattern                    Controller#Action
    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
   new_user_password GET    /users/password/new(.:format)  devise/passwords#new
  edit_user_password GET    /users/password/edit(.:format) devise/passwords#edit
       user_password PATCH  /users/password(.:format)      devise/passwords#update
                     PUT    /users/password(.:format)      devise/passwords#update
                     POST   /users/password(.:format)      devise/passwords#create

cancel_user_registration GET /users/cancel(.:format) devise/registrations#cancel
new_user_registration GET /users/sign_up(.:format) devise/registrations#new
edit_user_registration GET /users/edit(.:format) devise/registrations#edit
user_registration PATCH /users(.:format) devise/registrations#update
PUT /users(.:format) devise/registrations#update
DELETE /users(.:format) devise/registrations#destroy
POST /users(.:format) devise/registrations#create

こう変更。

routes.rb

  devise_for :users,
         path: '',
         path_names: {sign_in: 'login', sign_out: 'logout', edit: 'profile', sign_up: 'registration'},
         controllers: {registrations: 'registrations'}

              Prefix Verb   URI Pattern              Controller#Action
    new_user_session GET    /login(.:format)         devise/sessions#new
        user_session POST   /login(.:format)         devise/sessions#create
destroy_user_session DELETE /logout(.:format)        devise/sessions#destroy
   new_user_password GET    /password/new(.:format)  devise/passwords#new
  edit_user_password GET    /password/edit(.:format) devise/passwords#edit
       user_password PATCH  /password(.:format)      devise/passwords#update
                     PUT    /password(.:format)      devise/passwords#update
                     POST   /password(.:format)      devise/passwords#create

cancel_user_registration GET /cancel(.:format) registrations#cancel
new_user_registration GET /registration(.:format) registrations#new
edit_user_registration GET /profile(.:format) registrations#edit
user_registration PATCH / registrations#update
PUT / registrations#update
DELETE / registrations#destroy
POST / registrations#create

スッキリ。