Question

我不得不对集合（Symfony表单CollectionType）进行更改以尊重排序和实体删除，并且我正在使用preSubmit事件侦听器按this issue suggestion进行更改}。但是，这些更改并没有让它回到控制器/持久性。

preSubmit后的数据是正确的，并且使用$event->setData($data)在事件中设置了数据，但在$form->getData()

中提交后，更改未保留

我的预先提交抽象类：

abstract class AbstractEntityFormType extends AbstractType
{
    /**
     * @param FormBuilderInterface $builder
     * @param array                $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->addEventListener(FormEvents::PRE_SUBMIT, [$this, 'onPreSubmit']);
    }

    /**
     * @param FormEvent $event
     */
    public function onPreSubmit(FormEvent $event)
    {
        $form = $event->getForm();
        $data = $event->getData();
        $document = $form->getData();

        foreach ($form->all() as $field) {
            /** @var FormInterface $field */
            $fieldName = $field->getName();
            if ($field->getConfig()->getType()->getInnerType() instanceof CollectionType) {
                // .. DO ALL TRANSFORMATION
            }
        }
        $event->setData($data);
    }
}

当我在这里转储$data时，一切都是正确的。

FormType扩展此AbstractEntityFormType类：

class DocumentType extends AbstractEntityFormType
{
    /**
     * @param FormBuilderInterface $builder
     * @param array $options
     * @return void
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        /** ADD THE LISTENER **/
        parent::buildForm($builder, $options);

        $builder->add('title', TextType::class, [
            'required'    => true,
            'constraints' => [
                new NotBlank([
                    'message' => '"title" is empty',
                ]),
            ],
        ]);

        $builder->add('symptoms', CollectionType::class, [
            'entry_type'     => SymptomType::class,
            'allow_add'      => true,
            'allow_delete'   => true,
            'by_reference'   => false,
        ]);

        $builder->add('tags', CollectionType::class, [
            'entry_type'   => TagType::class,
            'allow_add'    => true,
            'allow_delete' => true,
            'by_reference' => false,
        ]);

        $builder->add('submit', SubmitType::class);
    }

    /**
     * @param OptionsResolver $resolver
     * @return void
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults([
            'data_class' => Document::class,
        ]);
    }
}

我的控制器操作：

/**
 * @param Request $request
 * @param int|null $documentId
 * @return Response
 */
public function formAction(Request $request, int $documentId = null)
{
    if (!$documentId) {
        $document = new Document();
    } else {
        try {
            $document = $this->documentService->getDocument($documentId);
        } catch (InvalidDocumentException $e) {
            return new NotFoundResponse('Document not found');
        }
    }

    $document = $this->setAuthor($document);

    $form = $this->formFactory->create(DocumentType::class, $document);
    $form->handleRequest($request);

    if ($form->isSubmitted() && $form->isValid()) {
        $document = $this->documentService->createDocument($form->getData());

        return new RedirectResponse($this->router->generate('ui.document.view', [
            'documentId' => $document->getId()
        ]));
    }

    return $this->templating->renderResponse(
        '@KBS/Document/form.html.twig', [
            'form' => $form->createView(),
        ]
    );
}

在使用服务保留文档之前转储$form->getData()时，数据不正确 - 它不受preSubmit的影响。我错过了什么？

仅供参考，这是使用Symfony 3.2基本组件。

更新

感谢@LBT，我有点接近但仍面临一些问题。在控制器中使用这种方法，我能够在提交表单时从请求中获取正确的数据：

public function formAction(Request $request, int $documentId = null)
{
    if (!$documentId) {
        $document = new Document();
    } else {
        try {
            $document = $this->documentService->getDocument($documentId);
        } catch (InvalidDocumentException $e) {
            return new NotFoundResponse('Document not found');
        }
    }

    $document = $this->setAuthor($document);

    $form = $this->formFactory->create(DocumentType::class, $document);

    if ($request->isMethod('POST')) {
        $form->submit($request->request->get($form->getName()));

        if ($form->isSubmitted() && $form->isValid()) {
            $document = $this->documentService->createDocument($form->getData());

            return new RedirectResponse($this->router->generate('ui.document.view', [
                'documentId' => $document->getId()
            ]));
        }
    }

    return $this->templating->renderResponse(
        '@KBS/Document/form.html.twig', [
            'form' => $form->createView(),
        ]
    );
}

但是，$form->submit($request->request->get($form->getName()));也会在转换之前保存不正确的（原始）数据。即使请求中的数据是正确的：

/var/www/html/src/Controller/DocumentController.php:94:
array (size=8)
  'title' => string 'Tag test' (length=8)
  'symptoms' =>
    array (size=1)
      0 =>
        array (size=3)
          'position' => string '0' (length=1)
          'title' => string 'The smell is terrible' (length=21)
          'description' => string 'pew' (length=3)
  'tags' =>
    array (size=4)
      0 =>
        array (size=1)
          'title' => string 'Volvo' (length=5)
      1 =>
        array (size=1)
          'title' => string 'Engine' (length=6)
      2 =>
        array (size=1)
          'title' => string 'BMW' (length=3)
      3 =>
        array (size=1)
          'title' => string 'Funky' (length=5)

感觉我越来越近了，但由于某些原因，我似乎无法将此请求数据用作suggested in the documentation。

Symfony preSubmit表单事件更改未保留在controller / persist中

0 个答案: