UserModel::__construct PHP Method

    public function __construct()
    {
        parent::__construct('User');
        $this->addFilterField(['Admin', 'Deleted', 'CountVisits', 'CountInvitations', 'CountNotifications', 'Preferences', 'Permissions', 'LastIPAddress', 'AllIPAddresses', 'DateFirstVisit', 'DateLastActive', 'CountDiscussions', 'CountComments', 'Score']);
    }

 /**
  *@author Rolando Arriaza
  *@todo Constructor de la clase
  *@param string $id_user el id del usuario  
  */
 public function __construct($id_user = null)
 {
     if (!\SivarApi\Tools\Validation::Is_Empty_OrNull($id_user)) {
         $this->ID_USER = $id_user;
     }
     parent::__construct();
 }