Symfony Form将变量选项从Collection传递给FormType

Question

i have a collection type:

->add('tipi', CollectionType::class, array(
                'entry_type' => TipiType::class,
                'allow_add' => true,
                'prototype' => true,
                'mapped' => false,
                'entry_options' => array(
                    'required' => true,
                    'label' => false,
                )
            ))

Extend this formtype:

->add('tipi', EntityType::class, array(
      'label' => 'Tipo',
      'class' => 'AppBundle:Tipi',
      'attr' => array('class' => 'form-control'),
      'query_builder' => function (EntityRepository $er) {
          return $er->createQueryBuilder('t')
                    ->innerJoin('t.requests', 'r')
          ;
      },
  ));

In the first form type i have an options sended from controller in this way:

$idRequest = $request->get('id');
$form = $this->createForm(RequestsType::class, $requests, array(
    'id_request' => $idRequest
));

In the first I can use it, but in the child FormType not. I would passing this variable in the collection type. How can I do that?

$form = $this->createForm(new YourForm($options), $class);