如何解决symfony句柄请求上传文件为空
我正在尝试在Symfony上上传多个文件,但是在提交表单时,表单图像字段会返回一个像这样的空对象
object(Doctrine\Common\Collections\ArrayCollection)#1455 (1) {
["elements":"Doctrine\Common\Collections\ArrayCollection":private]=>
array(1) {
[0]=>
object(AdminBundle\Entity\ImageNew)#1717 (5) {
["nom":"AdminBundle\Entity\ImageNew":private]=>
NULL
["path":"AdminBundle\Entity\ImageNew":private]=>
NULL
["idimage":"AdminBundle\Entity\ImageNew":private]=>
NULL
["categorie":"AdminBundle\Entity\ImageNew":private]=>
NULL
["file":"AdminBundle\Entity\ImageNew":private]=>
NULL
}
}
}
但是当我直接在请求文件内部获取文件时,属性文件存在。我试图通过访问请求中的属性来上传文件,它可以工作,但是它仍然想通过Symfony $ form请求处理程序来上传文件。
那是我的控制者
public function addColorAction(Request $request,Article $article)
{
$couleur = new Couleur();
$form = $this->createForm('AdminBundle\Form\CouleurType',$couleur);
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$em = $this->getDoctrine()->getManager();
$files = $couleur->getImages();
echo "<pre>";
var_dump($files); die;
$imgs = $request->files->get("adminbundle_couleur")["images"];
foreach ($imgs as $img) {
$image = new ImageNew();
$image->setFile($img["file"]);
$image->upload();
$couleur->addImage($image);
$em->persist($image);
$em->flush();
}
$color_art_dispo = new CouleurArticleDispo();
$color_art_dispo->setEnStock(true);
$color_art_dispo->setArticle($article);
$color_art_dispo->setCouleur($couleur);
$em->persist($couleur);
$em->persist($color_art_dispo);
$em->flush();
return $this->redirectToRoute('article_index');
}
return $this->render(
'admin/article/couleur/new.html.twig',array(
'couleur' => $couleur,'form' => $form->createView(),)
);
}
库勒实体
class Couleur
{
/**
* @var int
*
* @ORM\Column(name="id",type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="nom",type="string",length=255)
* @Assert\NotBlank(message="Veuillez entrer le nom de la couleur")
*/
private $nom;
/**
* @var string
*
* @ORM\Column(name="code_couleur",length=6)
* @Assert\NotBlank(message="Veuillez entrer le code couleur correspondant")
* @Assert\Length(
* min=6,* max=6,* minMessage="Le code couleur n'est pas correct.",* maxMessage="Le code couleur n'est pas correct.",* )
*/
private $codeCouleur;
/**
*
* @ORM\OneToMany(targetEntity="CouleurArticleDispo",mappedBy="_couleurs")
*/
private $colorArticles;
/**
* Many Colors have Many Images.
*
* @ORM\ManyToMany(targetEntity="ImageNew",cascade={"remove"})
* @ORM\JoinTable(name="color_images",joinColumns={@ORM\JoinColumn(name="color_id",referencedColumnName="id",onDelete="CASCADE")},* inverseJoinColumns={@ORM\JoinColumn(name="image_id",referencedColumnName="idimage",onDelete="CASCADE")}
* )
*/
private $images;
public function __toString()
{
return (string) $this->getNom();
}
/**
* Class Constructor
*/
public function __construct()
{
$this->images = new ArrayCollection();
}
}
这是图片实体
class ImageNew
{
/**
* @var string
*
* @ORM\Column(name="nom",length=100)
*/
private $nom;
/**
* @var string
*
* @ORM\Column(name="path",length=255)
*/
private $path;
/**
* @var integer
*
* @ORM\Column(name="idimage",type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="IDENTITY")
*/
private $idimage;
/**
* @var \AdminBundle\Entity\Categorie
*
* @ORM\ManyToOne(targetEntity="AdminBundle\Entity\Categorie",cascade={"persist"},inversedBy="slides")
* @ORM\JoinColumns({
* @ORM\JoinColumn(name="id_categorie",referencedColumnName="idcategorie",nullable=true,onDelete="SET NULL")
* })
*/
private $categorie;
/**
* @Assert\NotNull()
* @Assert\File(
* maxSize = "6000k",* mimeTypes = {"image/png","image/jpg","image/bmp"},* mimeTypesMessage = "Please upload a valid Image File (PNG,JPEG or BMP)"
* )
*/
private $file;
public function __toString()
{
return (string) $this->getPath();
}
}
这是库勒式的
class CouleurType extends AbstractType
{
/**
* {@inheritdoc}
*/
public function buildForm(FormBuilderInterface $builder,array $options)
{
$builder
->add('nom')
->add('codeCouleur')
->add(
'images',CollectionType::class,array(
'label' => 'Images de l\'article ayant cette couleur','entry_type' => ImageNewFileType::class,'allow_add' => true,'allow_delete' => true,)
);
}
}
最后是图片类型
class ImageNewFileType extends AbstractType
{
/**
* {@inheritdoc}
*/
public function buildForm(FormBuilderInterface $builder,array $options)
{
$builder->add(
'file',FileType::class,[
'mapped' => false,'required' => false,'attr' => array(
'accept' => 'image/*',)
]
);
}
}
解决方法
我认为您不应该在ImageNewFileType中添加mapd => false选项。
https://symfony.com/doc/current/reference/forms/types/form.html#mapped
正如您在文档中看到的那样,在写入对象时,该字段将被忽略。
,由于属性'mapped'=> false,错误出在ImageNewFileType内,该表单未在ImageNew Entity的file字段中设置上载的文件信息,所以我替换了这个:
class ImageNewFileType extends AbstractType
{
/**
* {@inheritdoc}
*/
public function buildForm(FormBuilderInterface $builder,array $options)
{
$builder->add(
'file',FileType::class,[
'mapped' => false,'required' => false,'attr' => array(
'accept' => 'image/*',)
]
);
}
}
由此:
class ImageNewFileType extends AbstractType
{
/**
* {@inheritdoc}
*/
public function buildForm(FormBuilderInterface $builder,[
'mapped' => true(or live this empty because by default it is true),)
]
);
}
}
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