Symfony2: File Upload via Doctrine does not fire the PrePersist/PreUpdate lifecycle-event

doctrine-ormsymfony

i tried to implement the file upload via doctrine/lifecycle callbacks as described here:

http://symfony.com/doc/current/cookbook/doctrine/file_uploads.html#using-lifecycle-callbacks

So far it works, but the PrePersist/PreUpdate Event is not fired, the function "preUpload" is not called.
Functions like "upload" and "removeUpload" triggered by other lifecycle events are called correctly.

Does anyone have an idea why the event is not fired or a solution for this problem?

Thanks

Best Answer

I have another solution to this problem:

My entity has a field "updatedAt" which is a timestamp of the last update. Since this field gets set anyway (by the timestampable extension of Gedmo) I just use this field to trick doctrine into believing that the entitiy was updated. Before I persist the entity I set this field manually doing

if( $editForm['file']->getData() )
    $entity->setUpdateAt(new \DateTime());

This way the entity gets persisted (because it has changed) and the preUpdate and postUpdate functions are called properly. Of course this only works if your entity has a field that you can exploit like that.

Related Solutions

Symfony2: PrePersist/PreUpdate lifecycle-event not fired

The first time you call persist doctrine will only save $album and not its images. You must specify that you want doctrine to cascade the persist by specifying it in the $images declaration:

    /**
     * @ORM\OneToMany(targetEntity="GalleryImage", mappedBy="parent", cascade={"persist", "remove"})
     */
    protected $images;

This way when you call persist($album) it will also persist your images and should trigger preUpload in your GalleryImage. There are a few different options available for cascading and they are explained well here:

Doctrine transitive persistence cascade operations

Symfony – preUpdate and postUpdate events not triggered on Doctrine 2

Did you forget to add @HasLifecycleCallbacks annotaion? You could use @PreUpdate annotation and skip service definition altogether.

/**
 * @ORM\Entity
 * @ORM\HasLifecycleCallbacks
 */
class YouEntity
{

    /**
     * @ORM\PrePersist()
     * @ORM\PreUpdate()
     */
    public function preUpdate(){
        // .... your pre-update logic here
    }
    ....
}

In my opinion this way of attaching events is much easier as you don't have to define new services and listeners explicitly. Also you have direct access to data being updated as this method is locations within your entity.

Now, drawback is that you mix logic with your model and that's something that should be avoided if possible...

You can read more about Lifecycle callbacks here: http://symfony.com/doc/master/cookbook/doctrine/file_uploads.html#using-lifecycle-callbacks

Best Answer

Related Solutions

Symfony2: PrePersist/PreUpdate lifecycle-event not fired

Symfony – preUpdate and postUpdate events not triggered on Doctrine 2

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