Symfony 2 formularze

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * Enquiry
 *
 * @ORM\Table(name="enquiry")
 * @ORM\Entity(repositoryClass="AppBundle\Repository\EnquiryRepository")
 */
class Enquiry
{
    /**
     * @var int
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @var string
     *
     * @ORM\Column(name="name", type="string", length=20)
     */
    private $name;

    /**
     * @var string
     *
     * @ORM\Column(name="lastName", type="string", length=30)
     */
    private $lastName;

    /**
     * @var string
     *
     * @ORM\Column(name="email", type="string", length=50)
     */
    private $email;

    /**
     * @var string
     *
     * @ORM\Column(name="subject", type="string", length=50)
     */
    private $subject;

    /**
     * @var string
     *
     * @ORM\Column(name="body", type="text")
     */
    private $body;

    /**
     * @var bool
     *
     * @ORM\Column(name="sendCopy", type="boolean")
     */
    private $sendCopy;

    //dalej settery i gettery

namespace AppBundle\Form\Type;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\OptionsResolver\OptionsResolver;

class EnquiryType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('name')
            ->add('lastName')
            ->add('subject')
            ->add('email')
            ->add('body')
            ->add('copySend')
            ->add('send', SubmitType::class)
            ;
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'AppBundle\Entity\Enquiry',
        ));
    }

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

/**
     * @Route("/kontakt", name="contact")
     */
    public function contactAction(Request $request)
    {
        $enquiry = new Enquiry();
        $form = $this->createForm(new EnquiryType(), $enquiry);
        $form->getForm();

        return $this->render('Website/contact.html.twig', array(
            'form' => $form->createView()
        ));
    }

if (class_exists($name) && in_array('Symfony\Component\Form\FormTypeInterface', class_implements($name))) {
                    $type = new $name();
                } else {
                    throw new InvalidArgumentException(sprintf('Could not load type "%s"', $name));
                }
            }

2. at FormRegistry ->getType ('AppBundle\Form\Type\EnquiryType') 
in vendor/symfony/symfony/src/Symfony/Component/Form/FormFactory.php at line 67 

3. at FormFactory ->createBuilder ('AppBundle\Form\Type\EnquiryType', object(Enquiry), array()) 
in vendor/symfony/symfony/src/Symfony/Component/Form/FormFactory.php at line 39

4. at FormFactory ->create ('AppBundle\Form\Type\EnquiryType', object(Enquiry), array()) 
in vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Controller/Controller.php at line 285

5. at Controller ->createForm ('AppBundle\Form\Type\EnquiryType', object(Enquiry)) 
in src/AppBundle/Controller/WebsiteController.php at line 69

 $form = $this->createForm(new EnquiryType(), $enquiry);

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

    $enquiry = new Enquiry();

    $form = $this->createForm(EnquiryType::class, $enquiry);        //tu jest zmiana, było new EnquiryType() a teraz jest EnquiryType::class
    $form->handleRequest($request);