Input Data Transformer

Hey there,

For some reason this wasn't working for me.
I was getting a 500 error like this one.

<blockquote>A new entity was found through the relationship 'App\Entity\CheeseNotification#cheeseListing' that was not configured to cascade persist operations for entity: App\Entity\CheeseListing@000000000c8e85fb0000000038202b1e. To solve this issue: Either explicitly call EntityManager#persist() on this unknown entity or configure cascade persist this association in the mapping for example @ManyToOne(..,cascade={"persist"}). If you cannot find out which entity causes the problem implement 'App\Entity\CheeseListing#__toString()' to get a clue.</blockquote>

So I went in App\DataPersister\CheeseListingDataPersister and change the persist function.

    /**
     * @param CheeseListing $data
     */
    public function persist($data)
    {
        $originalData        = $this->entityManager->getUnitOfWork()->getOriginalEntityData($data);
        $wasAlreadyPublished = $originalData['isPublished'] ?? false;

        if ($data->getIsPublished() && !$wasAlreadyPublished) {
            $notification = new CheeseNotification($data, 'Cheese listing was created!');
            $this->entityManager->persist($notification);
            $this->entityManager->flush();
        }

        $this->decoratedDataPersister->persist($data);
    }

Became

    /**
     * @param CheeseListing $data
     */
    public function persist($data)
    {
        $originalData        = $this->entityManager->getUnitOfWork()->getOriginalEntityData($data);
        $wasAlreadyPublished = $originalData['isPublished'] ?? false;

        $this->decoratedDataPersister->persist($data);

        if ($data->getIsPublished() && !$wasAlreadyPublished) {
            $notification = new CheeseNotification($data, 'Cheese listing was created!');
            $this->entityManager->persist($notification);
            $this->entityManager->flush();
        }
    }

In short, I had to move up the $this->decoratedDataPersister->persist($data); so its already persisted before the persist and flush the notification.

Thought it could help.