Symfony: How to add a field form to a child? - symfony

Question

I have a field type entity that is rendered as checkboxes I want to add for each checkbox a field of type textarea, how I can I do this ?
Code:
// OfferType.php
$builder
->add('payment_method', new OfferPaymentType(), [
'required' => false,
'mapped' => false,
'expanded' => true,
'multiple' => true,
])
;
// OfferPaymentType.php
class OfferPaymentType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('payment', null, [
'multiple' => true,
'expanded' => true,
'compound' => true,
])
;
$factory = $builder->getFormFactory();
$formModifier = function (FormInterface $form, $payments = null) use ($factory) {
foreach ($form as $child) {
//dump($child);die;
$child->add(
$factory->createNamed('metadata', 'textarea', null, [
'auto_initialize' => false,
'compound' => true,
]),
null,
['compound' => true]
);
}
};
$builder->get('payment')->addEventListener(
FormEvents::PRE_SET_DATA,
function (FormEvent $event) use ($formModifier) {
$data = $event->getData();
$formModifier($event->getForm(), $data);
}
);
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'multiple' => true,
'expanded' => true,
'class' => 'AppBundle:OfferPayment',
'data_class' => 'AppBundle\Entity\OfferPayment',
'translation_domain' => 'app',
'compound' => true,
));
}
public function getName()
{
return 'offer_payment';
}
}

Answer 1

You need to create a custom form type which gonna have two embedded fields a checkbox and a textarea
class OfferPaymentType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('payement', 'checkbox')
->add('metadata', 'textarea');
}
}
And in your form Type you will do something like
class CustomType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('payment_method', 'collection', array(
'type' => new OfferPaymentType(),
'allow_add' => true,
'allow_delete' => true
)
);
}
}