public final function fetchDescription()
    {
        //brak opisu
        if (!$this->getDescription()) {
            return;
        }
        //element do widoku
        \Mmi\App\FrontController::getInstance()->getView()->_element = $this;
        //render szablonu
        return \Mmi\App\FrontController::getInstance()->getView()->renderTemplate(static::TEMPLATE_DESCRIPTION);
    }