php - symfony entity form type with related data -

i have created form in symfony2 form type , used entity type user choose his/her address this:

$builder->add('sladdress', 'entity', array(     'class' => 'myclass\userbundle\entity\useraddresses',     'property' => 'address',     'label' => 'label.your_addresses_list',     'translation_domain' => 'labels',     'mapped' => false )); 

i have useraddresses entity has manytoone relation users entity , saves user's addresses. problem remains should sladdress type loads addresses that's owned user?(by default sladdress form field loads of addresses exist in entity) fast way?

i found solution , should use 'query_builder' argument of symfony form types this:

$builder->add('sladdress', 'entity', array('class' => 'myclass\userbundle\entity\useraddresses', 'property' => 'address', 'label' => 'label.your_addresses_list', 'translation_domain' => 'labels', 'mapped' => false,     'query_builder' => function (entityrepository $er) {         return $er->createquerybuilder('u')             ->where('u.user = ?1')             ->setparameter(1, $this->context->gettoken()->getuser());     },)); 

but should note can't use $this->context in symfony formtypes should create private variable named $context in formtype :

private $context; 

and create constructor method in formtype gives security context controller called $form->createfrombuilder() on form type:

public function __construct($context) {     $this->context = $context; } 

and when call formtype in controller passing securitycontext parameter it, this:

    $form = $this->createform(new selectaddresstype($this->get('security.context')), null, array(         'action' => $this->generateurl('frontend_order_checkout', array('vendor_code' =>  $vendor_id)),     ));