$log['user_id'] = $this->getUser();
$log['action'] = $do->getRepository(LogEvent::class)->findOneBy(array('action'=>'creation'));
$log['note'] = '';
$log['dateTime'] = new \DateTime();
$log['entity'] = 'MaterialField';
$log['entity_id'] = $materialValues->getId();
$log['version_id'] = -1;
$log = $RR->denormalize($log,Log::class);
$this->logger->write($log);