public function getNodeByInternalName($internalName)
    {
        $qb = $this->createQueryBuilder('n')
            ->select('n')
            ->where('n.deleted = 0')
            ->andWhere('n.internalName = :internalName')
            ->setParameter('internalName', $internalName);

        return $qb->getQuery()->getOneOrNullResult();
    }