Piwik\Twig::addFilter_prettyDate PHP Метод

    protected function addFilter_prettyDate()
    {
        $prettyDate = new Twig_SimpleFilter('prettyDate', function ($dateString, $period) {
            return Period\Factory::build($period, $dateString)->getLocalizedShortString();
        });
        $this->twig->addFilter($prettyDate);
    }