<?
/* file application/libraries/MY_Controller.php */
class Auth_Controller extends Controller {

   function __construct()
{
parent::__construct();
       if ($this->tank_auth->is_logged_in()) {
            $data['auth']['username'] = $this->tank_auth->get_username();
            $data['auth']['user_id'] = $this->tank_auth->get_user_id();
            $data['auth']['profile'] = $this->auth_profile_model->get_profile&#40;$data['auth']['user_id']&#41;;
        }
}

}

/* file /application/controllers/admin_dashboard.php  */

class Admin_Dashboard extends Auth_Controller {

function index()
{
    echo 'You are logged in';
}

}