protected function getExistingTaxonomies($entity)
{
// Fetch existing taxonomies
$query = $this->em->createQueryBuilder()->select('*')->from($this->mapping['target'])->where('content_id = :content_id')->andWhere('contenttype = :contenttype')->andWhere('taxonomytype = :taxonomytype')->setParameters(['content_id' => $entity->id, 'contenttype' => $entity->getContenttype(), 'taxonomytype' => $this->mapping['fieldname']]);
$result = $query->execute()->fetchAll();
return $result ?: [];
}