继承构造函数php 5.2.6

Question

I have a relatively simple question. I am trying to inherit a constructor from a php superclass to authenticate on this controller.

Here is my super class:

class Auth_Controller extends CI_Controller {

    function __construct()
    {
        parent::__construct();

        if(!session_id()){
            session_start();
        }

        $this->load->view('login_v/logincheck');

    }

} 

and here is my subclass:

class Event_Controller extends Auth_Controller {
    function __construct()
    {
        parent::__construct();
    }

    public function get_events_by_owner() {

        $this->load->model('Event_model');
        $data['events'] = $this->Event_model->select_by_owner($_SESSION['SignedIn']);

        $this->load->view('event_view', $data);
    }
}

This is not working. only a white page is rendered. I'm not sure why it isn't working. If I move the constructor from Auth_Controller to Event_Model this works.

Thanks!

EDIT:

Fatal error: Class 'Auth_Controller' not found in 
../controllers/event_controller.php on line 12

Answer 1

Your solution is not going to work, you should try either:

Move this code:

if(!session_id()){
  session_start();
}

$this->load->view('login_v/logincheck');

to a cutom library, than run this library within constructor of your controller. Please read Creating Libraries for details.

or:

Create MY_Controller class and put auth code (quoted above) into its constructor. Than you'll be able to extend like:

class Event_Controller extends MY_Controller {
(...)

Please read Creating Core System Classes for details.