volontariat/voluntary

class OmniauthCallbacksController < Devise::OmniauthCallbacksController
  def all
    user = User.from_omniauth(request.env['omniauth.auth'])

    if user.persisted?
      kind = case request.env['omniauth.auth']['provider']
      when 'google_oauth2' then 'Google'
      else request.env['omniauth.auth']['provider'].titleize
      end
      
      flash[:notice] = I18n.t 'devise.omniauth_callbacks.success', kind: kind
      sign_in_and_redirect user, event: :authentication
    else
      session['devise.user_attributes'] = user.attributes
      redirect_to new_user_registration_url
    end
  end
  
  alias_method :facebook, :all
  alias_method :google_oauth2, :all
  alias_method :lastfm, :all
end