SonataAdminBundle/Form/Type/AdminType.php

<?php
/*
 * This file is part of the Sonata package.
 *
 * (c) Thomas Rabaix <thomas.rabaix@sonata-project.org>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 */

namespace Sonata\AdminBundle\Form\Type;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormTypeInterface;
use Symfony\Component\Form\FormBuilder;

use Sonata\AdminBundle\Form\DataTransformer\ArrayToModelTransformer;

class AdminType extends AbstractType
{
    /**
     * @param \Symfony\Component\Form\FormBuilder $builder
     * @param array $options
     * @return void
     */
    public function buildForm(FormBuilder $builder, array $options)
    {
        $admin = $this->getAdmin($options);
        if ($options['delete']) {
            $builder->add('_delete', 'checkbox', array('required' => false, 'property_path' => false));
        }

        $admin->defineFormBuilder($builder);

        $builder->prependClientTransformer(new ArrayToModelTransformer($admin->getModelManager(), $admin->getClass()));
    }

    /**
     * @param array $options
     * @return $options
     */
    public function getDefaultOptions(array $options)
    {
        return array(
            'field_description' => null,
            'delete'            => true,
        );
    }

    /**
     * @param array $options
     * @return \Sonata\AdminBundle\Admin\FieldDescriptionInterface
     */
    public function getFieldDescription(array $options)
    {
        return $options['field_description'];
    }

    /**
     * @param array $options
     * @return \Sonata\AdminBundle\Admin\AdminInterface
     */
    public function getAdmin(array $options)
    {
        return $this->getFieldDescription($options)->getAssociationAdmin();
    }

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