我试图关注VichUploaderBundle的文档，但事情似乎没有按预期工作。 我收到了错误
SQLSTATE [23000]：完整性约束违规：1048列 'image_name'不能为空
当然，有关它的问题被多次询问，但我没有找到任何合适的答案。
所以我的config.yml看起来像这样：
vich_uploader:
db_driver: orm
mappings:
image:
uri_prefix: /images
upload_destination: '%kernel.project_dir%/web/images'
inject_on_load: true
namer: vich_uploader.namer_uniqid
我有制片人实体：
/**
* Products table
*
* @author gallareton
*
* @ORM\Table(name="producer")
* @ORM\Entity(repositoryClass="ShopBundle\Repository\ProducerRepository")
*/
class Producer
{
/**
* Constructor
*/
public function __construct() {
$this->products = new ArrayCollection();
}
/**
* @ORM\Column(type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @ORM\Column(type="string", length=25, unique=true)
*/
private $name;
/**
* One Producer has Many Products
* @ORM\OneToMany(targetEntity="Product", mappedBy="producer")
*/
private $products;
/**
* One Producer has One Image
* @ORM\OneToOne(targetEntity="\AppBundle\Entity\Image", cascade={"persist"})
*/
private $image;
图像实体（几乎从文档中复制）：
/**
* @ORM\Entity
* @Vich\Uploadable
* @ORM\HasLifecycleCallbacks
*/
class Image
{
/**
* @ORM\Id
* @ORM\Column(type="integer")
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* NOTE: This is not a mapped field of entity metadata, just a simple property.
*
* @Vich\UploadableField(mapping="image", fileNameProperty="imageName", size="imageSize")
*
* @var File
*/
private $imageFile;
/**
* @ORM\Column(type="string", length=255)
*
* @var string
*/
private $imageName;
/**
* @ORM\Column(type="integer")
*
* @var integer
*/
private $imageSize;
/**
* @ORM\Column(type="datetime")
*
* @var \DateTime
*/
private $updatedAt;
/**
* If manually uploading a file (i.e. not using Symfony Form) ensure an instance
* of 'UploadedFile' is injected into this setter to trigger the update. If this
* bundle's configuration parameter 'inject_on_load' is set to 'true' this setter
* must be able to accept an instance of 'File' as the bundle will inject one here
* during Doctrine hydration.
*
* @param File|\Symfony\Component\HttpFoundation\File\UploadedFile $image
*
* @return Image
*/
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 \DateTimeImmutable();
}
return $this;
}
/**
* @return File|null
*/
public function getImageFile()
{
return $this->imageFile;
}
/**
* @param string $imageName
*
* @return Image
*/
public function setImageName($imageName)
{
$this->imageName = $imageName;
return $this;
}
/**
* @return string|null
*/
public function getImageName()
{
return $this->imageName;
}
/**
* @param integer $imageSize
*
* @return Image
*/
public function setImageSize($imageSize)
{
$this->imageSize = $imageSize;
return $this;
}
/**
* @return integer|null
*/
public function getImageSize()
{
return $this->imageSize;
}
}
还有2个Form类，一个嵌入另一个： ProducerImageType：
/**
* Created by PhpStorm.
* User: gallareton
* Date: 16.11.2017
* Time: 17:55
*/
class ProducerImageType extends AbstractForm
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('imageFile', VichImageType::class, [
'required' => false,
'allow_delete' => true,
'label' => false,
]);
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => Image::class,
));
}
}
ProducerForm：
/**
* Created by PhpStorm.
* User: gallareton
* Date: 16.11.2017
* Time: 17:55
*/
class ProducerForm extends AbstractForm
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add(
'id',
HiddenType::class
);
$builder->add(
'name',
TextType::class,
array(
'label' => 'app.name',
'constraints' => array(
new Length(
array(
'max' => 25,
)
),
),
)
);
$builder->add(
'image',
ProducerImageType::class,
array(
'label' => 'app.image',
)
);
$builder->add(
'save',
SubmitType::class,
array('label' => 'app.save')
);
}//end BuildForm()
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => Producer::class,
'crsf_protection' => true,
'crsf_field_name' => '_token',
'crsf_token_id' => 'producer'
));
}//end configureOptions()
}
我尝试启动沙盒，但是我犯了很多错误，我在1小时后放弃了。查看文件，看起来我已经做好了一切。可能我错过了一些小细节。我考虑过在setImageFile方法中手动设置文件名和文件大小，但这只是一种解决方法，我试图避免像每个人都应该这样的解决方案。
提交表单的行为也很重要，所以这是行动：
注意：$this->db()是我$this->getDoctrine()->getManager()的快捷方式，$this->getRepo()是$this->getDoctrine()->getManager()->getRepository()的快捷方式
/**
* @Route("/edit/{id}", name="producerAdminEdit")
* @param Request $request
* @param int $id
* @return \Symfony\Component\HttpFoundation\JsonResponse|\Symfony\Component\HttpFoundation\Response
*/
public function editAction(Request $request, $id = null)
{
$this->setMenuTab('cars', 'admin');
if (!empty($id)) {
$producer = $this->getRepo(Producer::class)->find($id);
if (empty($producer)) {
throw $this->createNotFoundException();
}
$this->setTitle('admin.cars.producers.edit');
} else {
$producer = new Producer();
$this->setTitle('admin.cars.producers.new');
}
$form = $this->createForm(ProducerForm::class, $producer);
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$producer = $form->getData();
dump($producer);
$this->db()->persist($producer);
$this->db()->flush();
return $this->redirectToRoute('carAdmin', array('tab' => 'producers'));
}
$this->setVariables(
array(
'form' => $form->createView(),
'producer' => $producer,
)
);
return $this->response();
}//end editAction()