2fa_session_controller

sessions_controller.rb

# app/controllers/admin_users/sessions_controller.rb

module AdminUsers
  class SessionsController < Devise::SessionsController
    # As you are overwriting devise session controller you need this to allow to login with user & pass (dev mode)
    prepend_before_action :require_no_authentication, only: [:new, :create]

    layout 'active_admin_logged_out'
    helper ::ActiveAdmin::ViewHelpers

    def new
      unless Rails.env.development? || Rails.env.test?
        return redirect_to :new_saml_admin_user_session
      end

      super
    end
  end
end