Symfony2: Edit file upload

Question

I am using the cookbook article from symfony.com to implement a file upload option for images.

Now I want to load up other images to the entity.

The default strategy for editing is: 1. Fetch out of DB 2. Inject into Form 3. Persist

Somehow this strategy doesn't work anymore when using file uploads (doctrine doesn't execute the events)

What else could I do to make the articles with picture editable?

Answer 1

The cookbook does not handle updates, in particular in the case where only the file changes.

In this case, the PreUpdate event is not triggered, so you need to trigger $entity->preUpload() manually before the $em->persist($entity), so that the file upload gets handled in any case (preUpload will alter $entity->path so the persisting will occur)