Подскажите пожалуйста как загружаются файлы средствами ZF2.
Попробовал так, но безуспешно.

Фильтр:

class ProductFilter extends InputFilter
{
    protected $category;

    public function __construct (Array $category = array())
    {
        $this->category = $category;

        ...............

        $images   = new FileInput('images');
        $images   ->setRequired(true);
        $images   ->getFilterChain()->attach(new RenameUpload(array(
                'target'    => 'files/images/product/product-',
                'use_upload_extension'  => true,
                'randomize' => true,
                )));
        $images   ->getValidatorChain()->attach(new Size(array(
                'max' => substr(ini_get('upload_max_filesize'), 0, -1). 'MB',
                )));
        $images   ->getValidatorChain()->attach(new MimeType(array(
                'image/gif', 'image/jpeg', 'image/png', 'enableHeaderCheck' => true,
                )));
        $this->add($images);

        ...............

    }
}

Форма:

class ProductForm extends Form implements ObjectManagerAwareInterface
{

    protected $objectManager;


    public function __construct(ObjectManager $objectManager)
    {
        $this->setObjectManager($objectManager);

        parent::__construct(null);
        $this->setAttribute('method', 'post');
        $this->setAttribute('class', 'form');

        ...............

        $images    = new File('images');
        $images    ->setLabel('Изображения: ');
        $this->add($images);

        ...............
    }
}

Контроллер:

public function insertAction ()
    {
        if (is_string($this->form))
            $form = new $this->form;
        else
            $form = $this->form;

        $request = $this->getRequest();

        if ($request->isPost()) {

            $form->setData(array_merge_recursive(
                $this->getRequest()->getPost()->toArray(),
                $this->getRequest()->getFiles()->toArray()
            ));

            if ($form->isValid()) {
                $service = $this->getServiceLocator()->get($this->service);

                if ($service->save(
                    $this->getRequest()->getPost()->toArray(),
                    $this->getRequest()->getFiles()->toArray())) {

                    $this->flashMessenger()->addSuccessMessage('Данные успешно добавлены');
                } else {
                    $this->flashMessenger()->addErrorMessage('Ошибка при добавлении данных');
                }

                return $this->redirect()->toRoute($this->route, array('controller' => $this->controller, 'action' => 'select'));
            }
        }

        if ($this->flashMessenger()->hasSuccessMessages()) {
            return new ViewModel(array(
                'form'      => $form,
                'success'   => $this->flashMessenger()->getSuccessMessages(),
            ));
        }

        if ($this->flashMessenger()->hasErrorMessages()) {
            return new ViewModel(array(
                'form'      => $form,
                'error'   => $this->flashMessenger()->getErrorMessages(),
            ));
        }

        if ($this->flashMessenger()->hasWarningMessages()) {
            return new ViewModel(array(
                'form'      => $form,
                'warning'   => $this->flashMessenger()->getWarningMessages(),
            ));
        }

        if ($this->flashMessenger()->hasInfoMessages()) {
            return new ViewModel(array(
                'form'      => $form,
                'info'   => $this->flashMessenger()->getInfoMessages(),
            ));
        }

        $this->flashMessenger()->clearMessages();

        return new ViewModel(array(
            'form'  => $form,
        ));
    }

АбстрактныйСервис:

abstract class AbstractService
{

    /**
     * @var EntityManager
     */
    protected $em;
    /**
     * @var
     */
    protected $entity;


    /**
     * @param EntityManager $em
     */
    public function __construct (EntityManager $em)
    {
        $this->em = $em;
    }


    /**
     * @param array $data
     * @return bool|\Doctrine\Common\Proxy\Proxy|null|object
     * @throws \Doctrine\ORM\ORMException
     */
public function save (Array $data = array())
    {
        if (isset($data['id'])) {
            $entity = $this->em->getReference($this->entity, $data['id']);
            $hydrator = new ClassMethods();
            $hydrator->hydrate($data, $entity);

        } else {
            $entity = new $this->entity($data);
        }

        $this->em->persist($entity);
        $this->em->flush();

        return $entity;
    }
}