public function index()
 {
     if (!isset($_SESSION['logged'])) {
         return call('pages', 'home');
     } else {
         #			$requirements = Requirement::all();
         $requirements = Requirement::sorted_all();
         sort($requirements);
         #usort($requirements, function ($item1, $item2) {
         #	if ( floatval($item1->getCode()) == floatval($item2->getCode()) )
         #		return 0;
         #	return ( floatval($item1->getCode()) > floatval($item2->getCode()) ) ? 1 : -1;
         #	});
         require_once 'views/requirements/index.php';
     }
 }