Facebook action could not be found - devise / omniauth

Question

I try to implement facebook authentication in my application after this guide

After logging in to Facebook, I get the following:

Unknown action The action 'facebook' could not be found for Devise::OmniauthCallbacksController 

I have a method implemented in application / controller / users / omniauth_callbacks_controller.rb as:

 class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController def facebook # You need to implement the method below in your model (eg app/models/user.rb) @user = User.find_for_facebook_oauth(request.env["omniauth.auth"], current_user) if @user.persisted? sign_in_and_redirect @user, :event => :authentication #this will throw if @user is not activated set_flash_message(:notice, :success, :kind => "Facebook") if is_navigational_format? else session["devise.facebook_data"] = request.env["omniauth.auth"] redirect_to new_user_registration_url end end end 

My callback route:

 devise_for :users, :controllers => { :omniauth_callbacks => "users/omniauth_callbacks" } 

Is there something I am missing? How can I debug this?

Thanks!

Update: added output of rake routes (sorry for the length):

  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_omniauth_authorize /users/auth/:provider(.:format) devise/omniauth_callbacks#passthru {:provider=>/facebook/} user_omniauth_callback /users/auth/:action/callback(.:format) devise/omniauth_callbacks#(?-mix:facebook) 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 help /help(.:format) static_pages#help about /about(.:format) static_pages#about contact /contact(.:format) static_pages#contact users_new GET /users/new(.:format) users#new signup /signup(.:format) users#new new_certificate /new_certificate(.:format) users#newcertificate users GET /users(.:format) users#index POST /users(.:format) users#create new_user GET /users/new(.:format) users#new edit_user GET /users/:id/edit(.:format) users#edit user GET /users/:id(.:format) users#show PUT /users/:id(.:format) users#update DELETE /users/:id(.:format) users#destroy new_user_session GET /users/sign_in(.:format) devise/sessions#new POST /users/sign_in(.:format) devise/sessions#create destroy_user_session DELETE /users/sign_out(.:format) devise/sessions#destroy user_omniauth_authorize /users/auth/:provider(.:format) users/omniauth_callbacks#passthru {:provider=>/facebook/} user_omniauth_callback /users/auth/:action/callback(.:format) users/omniauth_callbacks#(?-mix:facebook) POST /users/password(.:format) devise/passwords#create GET /users/password/new(.:format) devise/passwords#new GET /users/password/edit(.:format) devise/passwords#edit PUT /users/password(.:format) devise/passwords#update GET /users/cancel(.:format) devise/registrations#cancel POST /users(.:format) devise/registrations#create GET /users/sign_up(.:format) devise/registrations#new GET /users/edit(.:format) devise/registrations#edit PUT /users(.:format) devise/registrations#update DELETE /users(.:format) devise/registrations#destroy GET /users/auth/:provider(.:format) users/omniauth_callbacks#passthru courses GET /courses(.:format) courses#index POST /courses(.:format) courses#create new_course GET /courses/new(.:format) courses#new edit_course GET /courses/:id/edit(.:format) courses#edit course GET /courses/:id(.:format) courses#show PUT /courses/:id(.:format) courses#update DELETE /courses/:id(.:format) courses#destroy enrollments GET /enrollments(.:format) enrollments#index POST /enrollments(.:format) enrollments#create new_enrollment GET /enrollments/new(.:format) enrollments#new edit_enrollment GET /enrollments/:id/edit(.:format) enrollments#edit enrollment GET /enrollments/:id(.:format) enrollments#show PUT /enrollments/:id(.:format) enrollments#update DELETE /enrollments/:id(.:format) enrollments#destroy submissions GET /submissions(.:format) submissions#index POST /submissions(.:format) submissions#create new_submission GET /submissions/new(.:format) submissions#new edit_submission GET /submissions/:id/edit(.:format) submissions#edit submission GET /submissions/:id(.:format) submissions#show PUT /submissions/:id(.:format) submissions#update DELETE /submissions/:id(.:format) submissions#destroy honour_code_signatures GET /honour_code_signatures(.:format) honour_code_signatures#index POST /honour_code_signatures(.:format) honour_code_signatures#create new_honour_code_signature GET /honour_code_signatures/new(.:format) honour_code_signatures#new edit_honour_code_signature GET /honour_code_signatures/:id/edit(.:format) honour_code_signatures#edit honour_code_signature GET /honour_code_signatures/:id(.:format) honour_code_signatures#show PUT /honour_code_signatures/:id(.:format) honour_code_signatures#update DELETE /honour_code_signatures/:id(.:format) honour_code_signatures#destroy root / static_pages#home 

Answer 1

Developed what I misconfigured! First I went for a tutorial for Devise and added it to my routes:

 devise_for :users 

Then I followed the omniauth tutorial and added the following for callbacks:

 devise_for :users, :controllers => { :omniauth_callbacks => "users/omniauth_callbacks" } 

Somehow, they must be contradictory, because they simply deleted the first record points of the callback in the right direction (he must have looked at the Devise class, which I subclassed Devise :: OmniauthCallbacksController).