Question

I’m trying to add authentications controller for my current devise system, in order to provide multiple logins with facebook and twitter.
To do that, I’m following this tutorial: http://railscasts.com/episodes/236-omniauth-part-2

My problem is, for the person, who hasn’t registered yet, and trying to register with twitter.
So I need to create both user and authentication for that.

My code is the following:

      user = User.new
      token = omni['credentials'].token
      token_secret = omni['credentials'].secret
      user.provider = omni.provider
      user.uid = omni.uid

      user.authentications.build(:provider => omni['provider'], :uid => omni['uid'], :token => token, :token_secret => token_secret)

      if user.save
        flash[:notice] = "Logged in."
        sign_in_and_redirect(:user, user)                
      else
        session["devise.user_attributes"] = user.attributes
        redirect_to new_user_registration_path
      end 

So at the end of the registration process, the new user is created. However in the database, I don’t see any twitter authentication record with respect to that user.

Is that because of the user.authentications.build ?

That would be great if you can help me.

Thanks.

Answer 1

As a data point: The railscasts you’re referring to references Omniauth pre-1.0, which had a slighly different strategy than what that railscsts reference. (Note: I’m using the exact method you’re referencing on a live site ). In this case, the build calls “apply_omniauth” –

Make sure you’ve created (as they reference in the video), a registrations controller which builds the resource. Here is my current working example:

    class RegistrationsController < Devise::RegistrationsController
  def create
    super
    session[:omniauth] = nil unless @user.new_record?
  end

  private

  def build_resource(*args)
    super
    if session[:omniauth]
      # apply omniauth calls the user model and applies omniauth session to the info
      @user.apply_omniauth(session[:omniauth])

      #
      @user.valid?
    end
  end
end

However, you still need to create the authentication record, here is my exact call:

current_user.authentication.create!(:provider => omniauth['provider'], :uid => omniauth['uid'])

Hope it helps.