I can't add fields to my registration form

Question

I never had this problem before, but I am trying to add a field to my registration form from FOSUserBundle. In results I have only the default form from the bundle and didn't get my birthday_date field. What am I doing wrong?

RegistrationType class:

<?php

namespace AppBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;

class RegistrationType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('birthday_date');
    }

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

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

config.yml:

fos_user:
    db_driver: orm # other valid values are 'mongodb' and 'couchdb'
    firewall_name: main
    user_class: AppBundle\Entity\User
    registration:
        form:
            name: app_user_registration

services.yml:

app.form.registration:
    class: AppBundle\Form\RegistrationType
    tags:
        - { name: form.type, alias: app_user_registration }

I just follow the document instructions so i have no idea, where's the problem

Answer 1

Your getParent() function should return the class of the parent form and not the name, these changes comes with versions > 2.8, check Overriding a Form Type

So your form type class should become:

<?php

namespace AppBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;


class RegistrationType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder->add('birthday_date');
}
public function getParent()
{
    return 'FOS\UserBundle\Form\Type\RegistrationFormType';
}
public function getName()
{
    return 'app_user_registration';
}
}