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<?php
declare(strict_types=1);
namespace App\Form\EventSubscriber;
use Symfony\Bridge\Doctrine\Form\Type\EntityType;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\Form\FormEvent;
use Symfony\Component\Form\FormEvents;
class UpdateDistrictFieldSubscriber implements EventSubscriberInterface
{
/**
* @return string[]
*/
public static function getSubscribedEvents(): array
return [FormEvents::POST_SUBMIT => 'onCityChanged'];
}
public function onCityChanged(FormEvent $event): void
$form = $event->getForm();
if ($form->getData()) {
// District of the city
$districts = $form->getData()->getDistricts();
$form->getParent()->add('district', EntityType::class, [
'class' => 'App\Entity\District',
'placeholder' => 'placeholder.select_district',
'choice_label' => 'name',
'attr' => [
'class' => 'form-control',
],
'required' => false,
'label' => 'label.district',
'choices' => $districts,
]);
Coderberg /
ResidenceCMS
