public function getRelatedArticle($relatedArticles, $articleNumber)
{
$qb = $this->createQueryBuilder('r')->where('r.articleNumber = :articleNumber')->andWhere('r.articleListId = :relatedArticlesId')->setParameters(array('articleNumber' => $articleNumber, 'relatedArticlesId' => $relatedArticles->getId()));
$query = $qb->getQuery();
return $query;
}