RegistrationFormType

gistfile1.php

<?php
namespace XXXX\Bundle\UserBundle\Form\Type;

use Symfony\Component\Form\FormBuilderInterface;
use FOS\UserBundle\Form\Type\RegistrationFormType as BaseType;

class RegistrationFormType extends BaseType
{
    public function __construct($dataClass)
    {
        parent::__construct($dataClass);
    }
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        parent::buildForm($builder, $options);


        $builder->add('profile','office_brain_user_profile');
    }

    public function getParent()
    {
        return 'fos_user_registration';
    }

    public function getName()
    {
        return 'xxx_user_registration';
    }
}