SonataAdminBundle/Form/Type/CollectionType.php

<?php

/*
 * This file is part of the Sonata Project 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;

/**
 * This type wrap native `collection` form type and render `add` and `delete`
 * buttons in standard Symfony` collection form type.
 *
 * @author Andrej Hudec <pulzarraider@gmail.com>
 */
class CollectionType extends AbstractType
{
    /**
     * {@inheritdoc}
     */
    public function getParent()
    {
        return
            method_exists('Symfony\Component\Form\AbstractType', 'getBlockPrefix') ?
            'Symfony\Component\Form\Extension\Core\Type\CollectionType' :
            'collection';
    }

    /**
     * {@inheritdoc}
     *
     * @todo Remove when dropping Symfony <2.8 support
     */
    public function getName()
    {
        return $this->getBlockPrefix();
    }

    /**
     * {@inheritdoc}
     */
    public function getBlockPrefix()
    {
        return 'sonata_type_native_collection';
    }
}