public function display(core_backup_renderer $renderer) {
        if ($this->progress < self::PROGRESS_SAVED) {
            throw new base_ui_exception('backupsavebeforedisplay');
        }
        return $this->stage->display($renderer);
    }
public function display(core_backup_renderer $renderer) {
        if ($this->progress < self::PROGRESS_SAVED) {
            throw new base_ui_exception('backupsavebeforedisplay');
        }
        return $this->stage->display($renderer);
    }
public function display ( core_backup_renderer $ renderer ) { if ( $ this -> progress < self :: PROGRESS_SAVED ) { throw new base_ui_exception ( 'backupsavebeforedisplay' ) ; } return $ this -> stage -> display ( $ renderer ) ; }
Displays the UI for the backup!

@throws base_ui_exception
@param core_backup_renderer $renderer
@return string HTML code to echo
Displays the UI for the backup!