Dynamically disable form in form events symfony - php

Question

I have many entities, each of which has its own form type. Some of the entities implements FooBarInterface comprising method FooBarInterface::isEnabled();
I want to create a Form Extension, to be check data_class at all forms, and disable form if entity implements FooBarInterface and entity::isEnabled() return false.
<?php
namespace AppBundle\Form\Extension;
use Symfony\Component\Form\AbstractTypeExtension;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\Form\FormView;
class MyExtension extends AbstractTypeExtension
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$dataClass = $builder->getDataClass();
if ($dataClass) {
$reflection = new \ReflectionClass($dataClass);
if ($reflection->implementsInterface(FooBarInterface::class)) {
$builder->addEventListener(FormEvents::PRE_SET_DATA, function(FormEvent $formEvent) {
$data = $formEvent->getData();
if ($data && !$data->isEnabled()) {
// todo this need disable all form with subforms
}
});
}
}
}
public function getExtendedType()
{
return 'form';
}
}
I have to make it through the $ builder-> addEventListener, because $ builder-> getData () do not always have the time to create a form. But after the creation of the form, I can not change her option disabled
How do I change the option disabled in the form?

Answer 1

I created Form Extension with method
public function finishView(FormView $view, FormInterface $form, array $options)
{
$dataClass = $form->getConfig()->getDataClass();
if ($dataClass) {
$reflection = new \ReflectionClass($dataClass);
if ($reflection->implementsInterface(FooBarInterface::class)) {
/** #var FooBarInterface$data */
$data = $form->getData();
if ($data && !$data ->isEnabled()) {
$this->recursiveDisableForm($view);
}
}
}
}
private function recursiveDisableForm(FormView $view)
{
$view->vars['disabled'] = true;
foreach ($view->children as $childView) {
$this->recursiveDisableForm($childView);
}
}
For disable changes if data is submitted I create Doctrine Event Subscriber with FormEvents::PRE_UPDATE event:
/**
* #param PreUpdateEventArgs $args
*/
public function preUpdate(PreUpdateEventArgs $args)
{
$entity = $args->getEntity();
if (!$entity instanceof DataStateInterface) {
return;
}
if (!$entity->isEnabled()) {
$args->getEntityManager()->getUnitOfWork()->clearEntityChangeSet(spl_object_hash($entity));
}
}