Routing Error uninitialized constant Users

Question

I am a rails newbie... I am trying to set up Sign in with facebook for a demo app. I am using OmniAuth and following this tutorial

https://github.com/plataformatec/devi

Answer 1

mv

app/controllers/omniauth_callbacks_controller.rb

to

app/controllers/users/omniauth_callbacks_controller.rb

or change

class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController

to

class OmniauthCallbacksController < Devise::OmniauthCallbacksController

Answer 2

I believe that part is messing up:

match '/users/auth/facebook' => 'users/omniauth_callbacks#passthru'

Little test, for you:

put in your view:

<%= link_to users_auth_facebook_path, users_auth_facebook_path  %>

and follow it with click, it also gives very same error...

I believe you should use something like (what is mentioned in wiki you linked above):

devise_scope :user do
  get '/users/auth/:provider' => 'users/omniauth_callbacks#passthru'
end

And wrap passthru method to delegate action to appropriate private/protected method depending on params[:provider] value

class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController
  def passthru
    send(params[:provider]) if providers.include?(params[:provider])
  end

  protected

  def facebook
    raise "Implement me for facebook"
  end

  def twitter
    raise "Implement me for twitter"
  end

  private

  def providers
    ["facebook", "twitter"]
  end
end