[es] Ejemplo de MY_Controller.php usando ion_auth como librería de Auth

home.php

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Home extends Admin_Controller {

	public function index()
	{
		//$this->load->view('admin/_header', $data);
		$this->load->view('admin/_header');
		$this->load->view('admin/home');
		$this->load->view('admin/_footer');
	}

}

/* End of file home.php */
/* Location: ./application/controllers/home.php */

MY_Controller.php

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Admin_Controller extends CI_Controller {

    protected $the_user;

    public function __construct() {

        parent::__construct();

        if($this->ion_auth->is_admin()) {
            $data->the_user = $this->ion_auth->user()->row();
            $this->the_user = $data->the_user;
            $this->load->vars($data);
        }
        else {
            redirect('/');
        }
    }
}

class User_Controller extends CI_Controller {

    protected $the_user;

    public function __construct() {

        parent::__construct();

        if($this->ion_auth->is_group('user')) {
            $data->the_user = $this->ion_auth->user()->row();
            $this->the_user = $data->the_user;
            $this->load->vars($data);
        }
        else {
            redirect('/');
        }
    }
}