Symfony - How to pass a variable to an embedded form - php

Question

I'm facing a problem with Symfony3 and forms.
I have a Parent form with an embedded Child form. From the controller, I can send data I can use in the Parent form with the $options array ($options['varA'], ...).
$form = $this->createForm(ParentEntityType::class, $objParent, array('varA'=>$varA, 'varB'=>$varB));
But what if I want to pass the varB variable (for example) to the embedded form ? What's the proper solution ?
Any help will be appreciated, thanks.

Answer 1

Something like this, in the first form:
$builder->add('name', MyFormType::class, [
'data' => $options['varB']
]);
But better if you share your forms codes. The main key is to pass variables by $options['key'] in buildForm() method.

Answer 2

this is a proper way in 2.7
in controller use this:
$itemform = $this->createForm(new SyllabusType(), $item, array('databranchid' => $branchid));
and in form use this:
$builder
->add('studentclassid', 'entity', array(
'class' =>'Schoolerp\Bundle\DBBundle\Entity\Studentclass',
'choice_label' => 'name',
'empty_value' => 'Choose an option',
'query_builder'=>function(EntityRepository $e) use ( $options ){
return $e->createQueryBuilder('u')->where('u.isactive=1')
->andWhere('u.branchid = ?1')
->setParameter(1, $options['databranchid']);
}
))
->add('sectionid', 'entity', array(
'class' =>'Schoolerp\Bundle\DBBundle\Entity\Sections',
'choice_label' => 'name',
'empty_value' => 'Choose an option',
'query_builder'=>function(EntityRepository $e) use ( $options ){
return $e->createQueryBuilder('u')->where('u.isactive=1')
->andWhere('u.branchid = ?1')
->setParameter(1, $options['databranchid']);
}
));
/**
* #param OptionsResolver $resolver
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'Schoolerp\Bundle\DBBundle\Entity\Syllabus',
'databranchid' => null
));
}
and if you use 3.0 replace input type into class type.

Answer 3

it's just simple pass values this way:
$builder->add('userid', 'entity', array(
'class' =>'DBBundle\Entity\AdminUser',
'choice_label' => 'name',
'query_builder'=>function(EntityRepository $e) use ( $options ){
return $e->createQueryBuilder('u')->where('u.status=1')
->andWhere('u.id = ?1')
->setParameter(1, $options['users']);
},
'attr' => array('style'=>'display:none'),
'label_attr' => array('style' =>'display:none')));