protected function getCurrentArticle()
    {
        $currentItem = oxNew(\OxidEsales\PayPalModule\Model\ArticleToExpressCheckoutCurrentItem::class);
        $currentArticleId = $this->getRequest()->getPostParameter('aid');
        $products = $this->_getItems();
        $productInfo = $products[$currentArticleId];
        $currentItem->setArticleId($currentArticleId);
        $currentItem->setSelectList($productInfo['sel']);
        $currentItem->setPersistParam($productInfo['persparam']);
        $currentItem->setArticleAmount($productInfo['am']);

        return $currentItem;
    }