Question

我有一个注册表。

提交表单并使其有效后，将进行大量验证，例如检查password和password_confirm是否匹配。如果不是，我将重定向到错误消息所在的页面。

但是我不希望我的用户丢失他已经填写的所有数据。我如何用这些数据填写表格。我应该使用FormEventListener吗？

public function register(Request $request, RegisterHandler $registerHandler, Register $register)
{
    if($this->getUser()){
        return $this->redirectToRoute('homepage');
    }

    $form = $this->createForm(RegisterType::class, $register);

    $form->handleRequest($request);
    if ($form->isSubmitted() && $form->isValid()) {
        try{
            $registerHandler->handle($form->getData());
        }catch (UserAlreadyExistException $e){
            $this->addFlash('error', $e->getMessage());
            return $this->redirectToRoute('register');
        }catch (PasswordMatchingException $e){
            $this->addFlash('error', $e->getMessage());
            return $this->redirectToRoute('register');
        }

        return $this->redirectToRoute('homepage');
    }

    return $this->render('app/pages/login/register.html.twig', [
        'form' => $form->createView(),
    ]);
}

我的表单类型

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        ->add('firstName', TextType::class, [
            'required' => true,
            'label' => 'Your Name',
            'attr' => [
                'class' => 'form-control',
            ]
        ])
        ->add('lastName', TextType::class, [
            'required' => true,
            'label' => 'Your Last Name',
            'attr' => [
                'class' => 'form-control',
            ]
        ])
        ->add('email', EmailType::class, [
            'required' => true,
            'label' => 'Your Email',
            'attr' => [
                'class' => 'form-control',
            ]
        ])
        ->add('password', PasswordType::class, [
            'required' => true,
            'label' => 'Your password',
            'attr' => [
                'id' => 'password1',
                'class' => 'form-control',
            ]
        ])
        ->add('passwordConfirm', PasswordType::class, [
            'required' => true,
            'label' => 'Confirm password',
            'attr' => [
                'id' => 'password2',
                'class' => 'form-control',
            ]
        ])
    ;

    $builder->addEventListener(FormEvents::POST_SUBMIT, function (FormEvent $event) {
        $data = $event->getData();
        $form = $event->getForm();

        //@TODO
    });
}

public function configureOptions(OptionsResolver $resolver)
{
    $resolver->setDefaults([
        'data_class' => Register::class,
    ]);
}

Answer 1

PasswordMatchingException和UserAlreadyExistException来自哪里？

通常，您将使用constraint或编写自己的validator，然后$ form-> isValid（）将为false，并且该表单将使用相同的数据再次呈现并显示错误。对于UserAlreadyExistException，应使用@UniqueEntity("email")；对于密码，应使用RepeatedType。

Symfony-使用Form Even Listener设置数据

1 个答案: