symfony: $event->getData() returns null for an embedded form

Related with #5694

Using $event->getData() within an event for an embedded form return null.

public function buildForm(FormBuilderInterface $builder, array $options)
{
     $builder->addEventListener(FormEvents::POST_SET_DATA, function ($event) {
         die(var_dump($event->getData())); //Return NULL for embedded forms, and the entity for non-embedded forms
     });
}

I have tested it for a non-persisted entity with properties assigned in the controller. But it should be the same for persisted entities, I suppose.

About this issue

Original URL
State: closed
Created 12 years ago
Comments: 36 (10 by maintainers)

Most upvoted comments

This is rather annoying to have to disable allow_add as, right now, I have to allow adds.

After having given a better insight, I noticed that the child form is called for each item of your collection, plus called the first time without any argument nor data.

The quick fix I found is to test if getData() is null or not. Works for me with allow_add => true.

$builder->addEventListener(FormEvents::POST_SET_DATA, function (FormEvent $event) {
    if (null != $event->getData()) {
    }
}

nicolaskern on Dec 1, 2014

$builder->addEventListener(FormEvents::PRE_SET_DATA, function(FormEvent $event){

$event->getData() is null and it shouldn’t be.

florinutz on Mar 19, 2014