Flow Doctrine Migration with entitymanager etc. without validation

index.php

<?php
class Version20250403102435 extends AbstractMigration
{
    protected ObjectManager $objectManager;

    protected PersistenceManager $persistenceManager;

    protected EntityManagerInterface $entityManager;
    protected Output $output;
  
      public function up(Schema $schema): void
    {
        // Boot the Flow application
        $bootstrap = Bootstrap::$staticObjectManager->get(Bootstrap::class);
        // Retrieve the object manager
        $this->objectManager = $bootstrap->getObjectManager();
        $this->persistenceManager = $this->objectManager->get(PersistenceManager::class);
        $this->entityManager = $this->objectManager->get(EntityManagerInterface::class);
        $this->output = $this->objectManager->get(ConsoleOutput::class);
        
        // [...]
        
        $this->wrapNoValidation(
          function () use ($pruefungsTerminRepository, $termin) {
            $pruefungsTerminRepository->add($termin);
            $this->persistenceManager->persistAll();
          }
        );
    }
  
    public function wrapNoValidation(callable $callback)
    {
        // Temporär deaktivieren wir Doctrine Events (Validation):
        $eventManager = $this->entityManager->getEventManager();
        $originalListeners = $eventManager->getListeners();

        try {
            // Entferne alle eventuellen Validierungs-Event-Listener
            foreach ($originalListeners as $event => $listeners) {
                foreach ($listeners as $listener) {
                    $eventManager->removeEventListener($event, $listener);
                }
            }

            // Führe die Operation aus
            return $callback();
        } finally {
            // Validierungs-Events wieder aktivieren
            foreach ($originalListeners as $event => $listeners) {
                foreach ($listeners as $listener) {
                    $eventManager->addEventListener($event, $listener);
                }
            }
        }
    }