Load a service in a FormBuilderInterface class - symfony

Question

I have a symfony service which loads a list of available languages from my database.
I have a FormBuilderInterface class where i define my form structure:
<?php
namespace UserBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
class UserProfileType extends AbstractType
{
/**
* #param FormBuilderInterface $builder
* #param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
// $this->get('locations')->getCountries()
echo 'options<pre>';
print_r($options);
echo '</pre>';
$builder
->add('name')
->add('surname')
->add('birthdate')
->add('country', 'choice',
array(
'choices' => $listOfCountries, // i want this !!
'choices_as_values' => true
)
)
->add('province')
->add('city')
->add('occupation')
->add('interests')
->add('languages')
->add('aboutMe')
;
}
/**
* #param OptionsResolverInterface $resolver
*/
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'UserBundle\Entity\UserProfile'
));
}
/**
* #return string
*/
public function getName()
{
return 'userbundle_userprofile';
}
}
I tried to load my Locations service in my FormBuilderInterface with:
$this->get('locations);
But it doesn't works.
I have searching in the Internet but i haven't found anything about this.
How i can do it?
Thanks you!

Answer 1

you shouldn't be trying to call a service inside the formType. Inject what you need through the controller.
controller (note the 3rd param)
$form = $this->createForm( new UserProfileType(), $entity, array('locations' => $locations ) );
then in your formType class
public function buildForm(FormBuilderInterface $builder, array $options)
{
$listOfCountries = $options['locations']
// ......
}
/*
* #param OptionsResolverInterface $resolver
*/
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'UserBundle\Entity\UserProfile',
'locations' => array()
));
}