Example of a re-using a FormType in other forms

foo-address-form.html.twig

{% import 'S2FooBundle:Form:macro.html.twig' as macro %}
{% form_theme fooAddressForm 'S2FooBundle:Form:theme.html.twig' %}

<form id="foo-address-form" method="post" action="{{ path('s2foo.foo_edit', {id: fooId}) }}">
  {{ form_errors(fooAddressForm) }}

  {% set field='name' %}
  <div class="row">
    <div class="three columns {{ macro.hasErrors(attribute(fooAddressForm.foo_address, field)) }}" data-field={{ field }}">
      {{ form_label(attribute(fooAddressForm.foo_address, field)) }}
    </div>
    <div class="nine columns {{ macro.hasErrors(attribute(fooAddressForm.foo_address, field)) }}" data-field={{ field }}">
      {{ form_widget(attribute(fooAddressForm.foo_address, field), {'attr': {'class': 'focus-first'}}) }}
      {{ form_errors(attribute(fooAddressForm.foo_address, field)) }}
    </div>
  </div>

  {% set field='address' %}
  <div class="row">
    <div class="three columns {{ macro.hasErrors(attribute(fooAddressForm.foo_address, field)) }}" data-field={{ field }}">
      {{ form_label(attribute(fooAddressForm.foo_address, field)) }}
    </div>
    <div class="nine columns {{ macro.hasErrors(attribute(fooAddressForm.foo_address, field)) }}" data-field={{ field }}">
      {{ form_widget(attribute(fooAddressForm.foo_address, field)) }}
      {{ form_errors(attribute(fooAddressForm.foo_address, field)) }}
    </div>
  </div>

  {% set field='city' %}
  <div class="row">
    <div class="three columns {{ macro.hasErrors(attribute(fooAddressForm.foo_address, field)) }}" data-field={{ field }}">
      {{ form_label(attribute(fooAddressForm.foo_address, field)) }}
    </div>
    <div class="nine columns {{ macro.hasErrors(attribute(fooAddressForm.foo_address, field)) }}" data-field={{ field }}">
      {{ form_widget(attribute(fooAddressForm.foo_address, field)) }}
      {{ form_errors(attribute(fooAddressForm.foo_address, field)) }}
    </div>
  </div>

  {% set field='state' %}
  <div class="row">
    <div class="three columns {{ macro.hasErrors(attribute(fooAddressForm.foo_address, field)) }}" data-field={{ field }}">
      {{ form_label(attribute(fooAddressForm.foo_address, field)) }}
    </div>
    <div class="nine columns {{ macro.hasErrors(attribute(fooAddressForm.foo_address, field)) }}" data-field={{ field }}">
      {{ form_widget(attribute(fooAddressForm.foo_address, field)) }}
      {{ form_errors(attribute(fooAddressForm.foo_address, field)) }}
    </div>
  </div>

  {% set field='zip' %}
  <div class="row">
    <div class="three columns {{ macro.hasErrors(attribute(fooAddressForm.foo_address, field)) }}" data-field={{ field }}">
      {{ form_label(attribute(fooAddressForm.foo_address, field)) }}
    </div>
    <div class="nine columns {{ macro.hasErrors(attribute(fooAddressForm.foo_address, field)) }}" data-field={{ field }}">
      {{ form_widget(attribute(fooAddressForm.foo_address, field)) }}
      {{ form_errors(attribute(fooAddressForm.foo_address, field)) }}
    </div>
  </div>

  {% if display_form_end is defined and display_form_end %}
    <div class="row">
      <input type="submit" name="submit" value="Save" class="button">
    </div>
  {% endif %}

  {{ form_rest(fooAddressForm) }}
</form>

FooAddressType.php

<?php

namespace S2\FooBundle\Form\Type;

use Symfony\Component\Form\AbstractType;
use S2\FooBundle\Form\Type\PartialAddressType;
use Symfony\Component\Form\FormBuilderInterface;

class FooAddressType extends AbstractType
{
    protected $partialAddressForm;

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

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('foo_address', $this->partialAddressForm);
    }

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

PartialAddressType.php

<?php

namespace S2\FooBundle\Form\Type;

use Symfony\Component\Form\AbstractType;
use S2\FooBundle\Entity\StateManager;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;

class PartialAddressType extends AbstractType
{
    private $addressClass;

    /**
     * @var StateManager
     */
    protected $stateManger;

    public function __construct($addressClass, StateManager $stateManager)
    {
        $this->addressClass = $addressClass;
        $this->stateManger  = $stateManager;
    }

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('name', 'text', array(
            'required' => false,
            'label_attr' => array(
                'class' => 'right inline',
            ),
        ));

        $builder->add('address', 'text', array(
            'required' => false,
            'label_attr' => array(
                'class' => 'right inline',
            ),
        ));

        $builder->add('city', 'text', array(
            'required' => false,
            'label_attr' => array(
                'class' => 'right inline',
            ),
        ));

        $builder->add('state', 'choice', array(
            'choices'     => $this->stateManger->findAllStates()->toArray(),
            'empty_value' => '- Choose an option -',
            'empty_data'  => null,
            'required'    => false,
            'label_attr' => array(
                'class' => 'right inline',
            ),
        ));

        $builder->add('zip', 'number', array(
            'required' => false,
            'label_attr' => array(
                'class' => 'right inline',
            ),
        ));
    }

    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => $this->addressClass,
            'cascade_validation' => true,
        ));
    }

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