Question

我正在尝试通过axios / ajax上传文件。我这样上传文件：

const formData = new FormData();
formData.append('logoFile', e.files[0]);

axios.post('/startups/logo', formData, {
  headers: {
    'Content-Type': 'multipart/form-data',
  },
})

然后在Symfony 4上，我要充水我的实体并验证使用formType创建的表单：

我的formType：

class LogoType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        // Remember username is email
        $builder
            ->add('logoFile', VichFileType::class, [
                'label'         => false,
                'required'      => false,
                'allow_delete'  => false,
                'download_uri'  => true,
                'download_label' => true,
                'download_link' => true,
            ])
        ;
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'csrf_protection' => false,
        ));
    }
}

但是在我的控制器中，我永远无法验证表单：

public function updateLogo(Request $request): Response
{

    $image = $request->files->get('logoFile');

    if(!$image instanceof UploadedFile) {
        throw new HttpException(400, "Cannot find a file to upload. Try again.");
    }
    //$image is now an instance of Symfony\Component\HttpFoundation\File\UploadedFile
    // THIS WORKS ^^ dd($image) does show the file properly

    $logo = new Logo();
    $form = $this->createForm(LogoType::class, $logo);
    $form->submit($request->files->all());

    if ($form->isSubmitted() && $form->isValid()) {
      // THIS PART NEVER GETS HIT.
    }

请注意，尝试执行$form->handleRequest($request);无效，$form->submit($request->request->all());也无效，这通常是验证通过ajax提交的表单的方法。

有人知道如何验证具有包含multipart / form-data文件集的表单吗？

谢谢大家。

如何在Symfony 4中通过文件上传来提交和验证multipart / form-data表单？

0 个答案: