Extending EntityType to allow extra choices set with AJAX calls

Question

I try to create a Symfony Custom type extending the core \"entity\" type.

But I want to use it with Select2 version 4.0.0

Answer 1

Problem solved.

The solution is to recreate the form field with 'choices'=>$selectedChoices in both PRE_SET_DATA and PRE_SUBMIT FormEvents.

Selected choices can be retrived from the event with $event->getData()

Have a look on the bundle I created, it implements this method :

Alsatian/FormBundle - ExtensibleSubscriber