我正在尝试创建一个没有实体的联系表单，但是在我提交表单后，我会收到此错误：
Notice: Trying to get property of non-object in /var/www/Myblog/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php line 84
这是我的ContactType.php
<?php
namespace Acme\ContactBundle\Form\Type;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
use Symfony\Component\Validator\Constraints\Length;
use Symfony\Component\Validator\Constraints\NotBlank;
use Symfony\Component\Validator\Constraints\Email;
class ContactType extends AbstractType
{
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
$resolver->setDefaults(array(
'data_class' => null,
'csrf_protection' => true,
));
}
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('name', 'text', array('constraints' => array(new NotBlank(array('message' => 'Name cannot be blank')), new Length(array('min' => 3, 'minMessage' => 'Name is too short')), 'label' => 'Name')))
->add('email', 'email', array('constraints' => array(new NotBlank(array('message' => 'E-mail cannot be blank')), new Email(array('message' => 'E-mail is not valid')), 'label' => 'E-mail')))
->add('content', 'textarea', array('constraints' => array(new NotBlank(array('message' => 'Message cannot be blank')), new Length(array('min' => 10, 'minMessage' => 'Message must have min. 10 characters')), 'label' => 'Message')))
->add('save', 'submit', array('label' => 'Send'));
}
public function getName()
{
return 'contact';
}
}
和我的DefaultController.php
<?php
namespace Acme\ContactBundle\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Acme\ContactBundle\Form\Type\ContactType;
use Acme\SettingsBundle\Entity\Settings;
use Symfony\Component\Security\Core\Exception\AccessDeniedException;
class DefaultController extends Controller
{
public function indexAction(Request $request)
{
$form = $this->createForm('contact');
$form->handleRequest($request);
if($form->isValid())
{
$em = $this->getDoctrine()->getManager();
$settings = $em->getRepository('AcmeSettingsBundle:Settings')->find(Settings::DUMMY_IDENTIFIER);
$message = \Swift_Message::newInstance()
->setSubject('Message from contact form - ' . $settings->getPageName())
->setFrom($form->get('email')->getData())
->setTo($settings->getPageEmail())
->setBody($this->renderView('AcmeContactBundle:Default:mail.txt.twig', array('name' => $form->get('name')->getData(), 'page_name' => $settings->getPageName(), 'homepage' => $this->generateUrl('default_blog'))));
$this->get('mailer')->send($message);
$this->get('session')->getFlashBag()->add(
'success',
'Message was successfuly sent'
);
}
return $this->render('AcmeContactBundle:Default:index.html.twig', array('form' => $form->createView()));
}
}
我在网上看到，这是 5.3 版本的 PHP 错误，但我使用的是5.4.19 PHP 版本。任何想法？
更新 - 转储测试
// Validate the data against the constraints defined
// in the form
$constraints = $config->getOption('constraints');
var_dump($constraints); exit();
返回：
array(0) {
}