VichUploaderBundle 在 delete/update 产品上引发错误

Question

我使用 symfony 4 和 VichUploaderBundle 来处理我的网络项目的图像。我根据文档做了所有事情

vich_uploader:
    db_driver: orm

    mappings:
        article_image:
            uri_prefix: /image/articles
            upload_destination: '%kernel.project_dir%/public/image/articles'

            inject_on_load: false
            delete_on_update: true
            delete_on_remove: true


class ArticleType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('articleTitle')
            ->add('articleBody')
            ->add('thumbNumber')
            ->add('seoDescription')
            ->add('imageFile', VichImageType::class, [
                'required' => false,
                'allow_delete' => true,
                'download_label' => '...',
                'download_uri' => true,
                'image_uri' => true,
            ])
            ->add('save', SubmitType::class, array('label' => 'Создать статью'))
//            ->add('imageSize')
//            ->add('updatedAt')
        ;
    }

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

/**
 * @Route("/gate/delete_article/{id}", name="delete_article")
 */
public function deleteArticle($id)
{
    $article = $this->getDoctrine()
        ->getRepository(Article::class)
        ->find($id);

    $entityManager = $this->getDoctrine()->getManager();
    $entityManager->remove($article);
    $entityManager->flush();

    return $this->redirectToRoute("gate");
}

我收到一条错误消息，告诉我我有问题：

Argument 1 passed to App\Entity\Article::setArticleImage() must be of the type string, null given, called in

因此图像已删除，但产品的其余部分仍在数据库中。

public function setArticleImage(string $articleImage): self
    {
        $this->articleImage = $articleImage;

        return $this;
    }

如果我将 delete_on_update: true 和 delete_on_remove: true 设置为 false，图像将被存储（按方面）并从数据库中删除产品。那么我应该怎么做才能删除图像和产品实例

Answer 1

在我看来，应用程序试图将 articleImage 正确设置为 null，但由于类型提示，您不允许这样做。如果要在 setter 中允许空值，请使用前缀类型提示 ? (PHP 7.1+):

public function setArticleImage(?string $articleImage): self
{
    $this->articleImage = $articleImage;
    return $this;
}

http://php.net/manual/en/migration71.new-features.php#migration71.new-features.nullable-types

VichUploaderBundle 在 delete/update 产品上引发错误

VichUploaderBundle raise error on delete/update product

symfony

vichuploaderbundle