VichUploaderBundle:image_name不能为null错误

时间:2016-06-20 15:10:22

标签: symfony vichuploaderbundle

我正在使用Symfony3.1,我刚刚安装了VichUploaderBundle。 我已经按照文档进行了操作,但是我收到此错误意味着字段'image_name'不能为空(null)

SQLSTATE [23000]:完整性约束违规:1048 Le champ'image_name'nepeutêtrevide(null)

配置

vich_uploader:
db_driver: orm
mappings:
    product_image:
        uri_prefix:         /images/actualites
        upload_destination: kernel.root_dir/../web/images/actualites

        inject_on_load:     false
        delete_on_update:   true
        delete_on_remove:   true

实体

/**
 *
 * @Vich\UploadableField(mapping="actualite_image", fileNameProperty="imageName")
 *
 * @var File
 */
private $imageFile;

/**
 * @ORM\Column(type="string", length=255)
 *
 * @var string
 */
private $imageName;

/**
 * @ORM\Column(type="datetime")
 *
 * @var \DateTime
 */
private $updatedAt;

/**
 * @param File|\Symfony\Component\HttpFoundation\File\UploadedFile $image
 *
 * @return Actualite
 */

public function setImageFile(File $image = null)
{
    $this->imageFile = $image;

    if ($image) {
        // It is required that at least one field changes if you are using doctrine
        // otherwise the event listeners won't be called and the file is lost
        $this->updatedAt = new \DateTime('now');
    }

    return $this;
}

/**
 * @return File
 */
public function getImageFile()
{
    return $this->imageFile;
}

/**
 * @param string $imageName
 *
 * @return Actualite
 */
public function setImageName($imageName)
{
    $this->imageName = $imageName;

    return $this;
}

/**
 * @return string
 */
public function getImageName()
{
    return $this->imageName;
}

FormType:

->add('imageFile', FileType::class)

树枝

<form class="form-horizontal" method="post" enctype="multipart/form-data">
 //...
 {{ form_widget(form.imageFile) }}

动作

public function creerAction(Request $request)
{
    $entity = new Actualite();
    $form = $this->createForm(BaseType::class, $entity);
    $form->handleRequest($request);

    if ($form->isSubmitted() && $form->isValid()) {
        $em = $this->getDoctrine()->getManager();
        $em->persist($entity);
        $em->flush();

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

    return $this->render('Backend/Actualite/creer.html.twig',array(
            'form' => $form->createView(),
        )
    );
}

3 个答案:

答案 0 :(得分:1)

<强>解决

错误是配置中的上传映射名称和实体中的映射名称不同,但它们必须相同。

在配置文件中 product_image ,在实体中 actualite_image

现在我给他们起了相同的名字,现在效果很好。

答案 1 :(得分:1)

所以,实际上根据hous的说法,这是app/config/config.yml文件所需的更改:

vich_uploader:
    db_driver: orm
    mappings:
        actualite_image:
            uri_prefix:         /images/actualites
            upload_destination: kernel.root_dir/../web/images/actualites

注意hous:你不需要config.yml文件中的最后3个选项,因为它们是默认的

答案 2 :(得分:0)

就像注释一样,有不同的Symfony3 setup here,这可能会有所帮助。

我认为对于你的设置,它与Symfony3不同。 试试这个:

->add('imageFile', VichImageType::class, array(
    'required'      => false,
))

此外,您还需要进行此更改:

# app/config/config.yml
twig:
    form_themes:
        # other form themes
        - 'VichUploaderBundle:Form:fields.html.twig'