Symfony2 - Get entity in presubmit/submit form event - php

Question

As the title says, I need to get the entity which is going to be deleted in a form event. I'm using Symfony 2.7. I'm able to get entity on POST_SUBMIT event if it gets created/edited, but I'm not able to get it on PRE_SUBMIT, SUBMIT and also POST_SUBMIT before it gets deleted.
What I tried so far (I wrote results of variables in comments)
public static function getSubscribedEvents()
{
return array(
FormEvents::POST_SUBMIT => 'onPostSubmit',
FormEvents::PRE_SUBMIT => 'onPreSubmit',
FormEvents::SUBMIT => 'onSubmit'
);
}
public function onPreSubmit(FormEvent $event)
{
dump($event->getForm()->getData()); // <-- null
dump($event->getData()); // <-- array:1 ["submit" => ""]
}
public function onSubmit(FormEvent $event)
{
dump($event->getForm()->getData()); // <-- null
dump($event->getData()); // <-- array:0 []
}
public function onPostSubmit(FormEvent $event)
{
dump($event->getForm()->getData()); // <-- array:0 []
dump($event->getData()); // <-- array:0 []
}
This is basically how deletion starts. I'll not put the whole functions used by it because I don't think is needed:
public function deleteConfirmAction(Request $request, $id)
{
$form = $this->createDeleteForm($id);
$form->handleRequest($request);
$entity = $coreService->getArea($id);
if ($form->isValid()) {
$coreService->deleteEntity($entity); // will remove also relationships
$coreService->persistChanges(); // basically a Doctrine flush()
$this->addFlash('success', GlobalHelper::get()->getCore()->translate('flash.entity.delete.success'));
return $this->redirect($this->generateUrl('index')));
}
}
private function createDeleteForm($id)
{
return $this->createFormBuilder()
->setAction($this->generateUrl('area_delete_confirm', array('id' => $id)))
->setMethod('POST')
->add('submit', 'submit', array('label' => 'entity.delete', 'attr' => ['class' => 'btn button-primary-right']))
->getForm();
}
Any idea?

Answer 1

You don't pass your entity to the form, you can do this by specifying first argument for createFormBuilder call:
$this->createFormBuilder(['entity' => $entity]);
and then you should be able to retrieve entity in pre submit event listener.