Symfony2 passing values to collection form type

Question

I have the following entity relations:

• A Customer has one-to-many Address
• An Address has many-to-one County and many-to-one City
• A County has one-to-many City.

So, in my CustomerType, I have

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        ...
        ->add('addresss', 'collection', array(
            'label' => 'customer.address',
            'type' => new AddressType(),
            'allow_add' => true,
            'allow_delete' => true,
            'by_reference' => false,
        ))
    ;
}

And in my AddressType, I have

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        ...
        ->add('city', 'entity', array(
            'class' => 'MyCustomerBundle:City',
            'query_builder' => function(CityRepository $cr) use ($options) {
                return $cr->getCityQB($options['county']);
            },
            'property' => 'city',
            'empty_value' => '',
        ))
    ;
}

My goal is to only display the set of cities for their corresponding county. I can get the values into CustomerType from $options but how can I pass down the values to AddressType? So that each address gets its corresponding county to look up the cities?

Any help would be appreciated. Thanks!

Answer 1

in symfony3 :

$builder->add('example', CollectionType::class, array(
    'entry_type'   => ExampleType::class,
    'entry_options'  => array(
        'my_custom_option'  => true),
));