Item::getMainPicUrl PHP Method

    public function getMainPicUrl()
    {
        $img = $this->getMainPicPath();
        if (file_exists(dirname(F::basePath()) . $img)) {
            return F::baseUrl() . $this->getMainPicPath();
        } else {
            return $this->getHolderJs('350', '350');
        }
    }