public function __construct()
 {
     parent::__construct();
     // Test uniquement !
     //$this->session->set_userdata('user_obj', serialize(User::getUserById(12)));
     //$this->session->set_userdata('is_connected',1);
     //Redirection si pas connecté
     if ($this->session->userdata('is_connected') != 1 || $this->session->userdata('user_obj') == NULL) {
         parent::show403Error();
     }
 }