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(),
)
);
}
答案 0 :(得分:1)
<强>解决强>
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'