asdf.php

<?php

/**
 * Custom EventExtension needed to subscribe to global buildForm Event
 */

use Shopware\Bundle\FormBundle\Extension\EventExtension;
use Symfony\Component\Form\AbstractTypeExtension;
use Symfony\Component\Form\FormEvent;
use Symfony\Component\Form\FormEvents;
use Symfony\Component\Form\FormBuilderInterface;

class Shopware_Components_Foobar_EventExtension extends AbstractTypeExtension
{
    /** @var AbstractTypeExtension */
    private $innerExtension = null;

    /** @var \Enlight_Event_EventManager */
    private $eventManager;

    /**
     * FormTypeEventExtension constructor.
     * @param AbstractTypeExtension $innerExtension
     */
    public function __construct(AbstractTypeExtension $innerExtension, \Enlight_Event_EventManager $eventManager)
    {
        $this->innerExtension = $innerExtension;
        $this->eventManager = $eventManager;
    }

    /**
     * {@inheritdoc}
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        // add custom event to be able to subscribe to post_submit-events
        $this->eventManager->notify('Shopware_Form_Builder_BUILD_FORM', [
            'reference' => $builder->getForm()->getConfig()->getType()->getName(),
            'builder' => $builder,
            'options' => $options
        ]);
        return $this->innerExtension->buildForm($builder, $options);
    }

    /**
     * Returns the name of the type being extended.
     *
     * @return string The name of the type being extended
     */
    public function getExtendedType()
    {
        return $this->innerExtension->getExtendedType();
    }
}