class OmniauthCallbacksController < Devise::OmniauthCallbacksController include Devise::Controllers::Rememberable def self.provides_callback_for(provider) # raise env["omniauth.auth"].to_yaml class_eval %Q{ def #{provider} cta_variant = request.env["omniauth.params"]['state'].to_s @user = AuthorizationService.new(request.env["omniauth.auth"], current_user, cta_variant).get_user if @user.persisted? remember_me(@user) sign_in_and_redirect @user, event: :authentication set_flash_message(:notice, :success, kind: "#{provider}".capitalize) if is_navigational_format? else session["devise.#{provider}_data"] = request.env["omniauth.auth"] redirect_to new_user_registration_url end end } end [:twitter, :github].each do |provider| provides_callback_for provider end end