cartodb/app/controllers/account_creator.rb

module AccountCreator
  def trigger_account_creation(account_creator)
    creation_data = account_creator.enqueue_creation(self)

    flash.now[:success] = 'User creation in progress'
    # Template variables
    @user_creation_id = creation_data[:id]
    @user_name = creation_data[:id]
    @redirect_url = CartoDB.url(self, 'dashboard')
  end
end