我是新的symfony，我尝试在SonataAdminBundle中上传img。我在此文档中提到：http://sonata-project.org/bundles/admin/master/doc/cookbook/recipe_file_uploads.html 但我得到了错误：
捕获致命错误：参数1传递给 MyBlogBundle \ Entity \ Blog :: setFile（）必须是。的实例 MyBlogBundle \ Entity \ UploadedFile，实例 给出Symfony \ Component \ HttpFoundation \ File \ UploadedFile，调用 C：\ OpenServer的\域\ Symfony.test \厂商\ symfony的\ symfony的\ SRC \的Symfony \元器件\ PropertyAccess \ PropertyAccessor.php 在第442行并定义
有人可以帮我吗？
我的博客实体： //src/MyBLogBundle/Entity/Blog.php class Blog {
const SERVER_PATH_TO_IMAGE_FOLDER = 'src/MyBlogBundle/Resources/public/images';
/**
* Unmapped property to handle file uploads
*/
private $file;
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="author", type="string", length=255)
*/
private $author;
/**
* @var string
*
* @ORM\Column(name="title", type="string", length=255)
*/
private $title;
/**
* @var string
*
* @ORM\Column(name="text", type="text")
*/
private $text;
/**
* @var \DateTime
*
* @ORM\Column(name="createDate", type="datetime")
*/
private $createDate;
/**
* @var \DateTime
*
* @ORM\Column(name="updateDate", type="datetime")
*/
private $updateDate;
/**
* @var string
*
* @ORM\Column(name="image", type="string", length=255)
*/
private $image;
/**
* @var string
*
* @ORM\Column(name="tag", type="string", length=255)
*/
private $tag;
/**
*
* @ORM\OneToMany(targetEntity="Comment",mappedBy="blog")
*/
private $comment;
/**
* Get id
*
* @return integer
*/
public function getId() {
return $this->id;
}
/**
* Set author
*
* @param string $author
* @return Blog
*/
public function setAuthor($author) {
$this->author = $author;
return $this;
}
/**
* Get author
*
* @return string
*/
public function getAuthor() {
return $this->author;
}
/**
* Set title
*
* @param string $title
* @return Blog
*/
public function setTitle($title) {
$this->title = $title;
return $this;
}
/**
* Get title
*
* @return string
*/
public function getTitle() {
return $this->title;
}
/**
* Set text
*
* @param string $text
* @return Blog
*/
public function setText($text) {
$this->text = $text;
return $this;
}
/**
* Get text
*
* @return string
*/
public function getText($count = NULL) {
if ($count != NULL) {
$arr = explode(' ', $this->text);
$arr = array_slice($arr, 0, $count);
$this->text = implode(' ', $arr) . '...';
}
return $this->text;
}
/**
* Set createDate
* @ORM\PrePersist
* @param \DateTime $createDate
* @return Blog
*/
public function setCreateDate() {
$this->createDate = new \DateTime();
return $this;
}
/**
* Get createDate
*
* @return \DateTime
*/
public function getCreateDate() {
return $this->createDate;
}
/**
* Set updateDate
* @ORM\PreUpdate
* @param \DateTime $updateDate
* @return Blog
*/
public function setUpdateDate() {
$this->updateDate = new \DateTime();
return $this;
}
/**
* Get updateDate
*
* @return \DateTime
*/
public function getUpdateDate() {
return $this->updateDate;
}
/**
* Set image
*
* @param string $image
* @return Blog
*/
public function setImage($image) {
$this->image = $image;
return $this;
}
/**
* Get image
*
* @return string
*/
public function getImage() {
return $this->image;
}
/**
* Set tag
*
* @param string $tag
* @return Blog
*/
public function setTag($tag) {
$this->tag = $tag;
return $this;
}
/**
* Get tag
*
* @return string
*/
public function getTag() {
return $this->tag;
}
public function __construct() {
$this->comment = new ArrayCollection();
$this->updateDate = new \DateTime();
}
/**
* Add comment
*
* @param \MyBlogBundle\Entity\Comment $comment
* @return Blog
*/
public function addComment(\MyBlogBundle\Entity\Comment $comment) {
$this->comment[] = $comment;
return $this;
}
/**
* Remove comment
*
* @param \MyBlogBundle\Entity\Comment $comment
*/
public function removeComment(\MyBlogBundle\Entity\Comment $comment) {
$this->comment->removeElement($comment);
}
/**
* Get comment
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getComment() {
return $this->comment;
}
/**
* Sets file.
*
* @param UploadedFile $file
*/
public function setFile(UploadedFile $file = null) {
$this->file = $file;
}
/**
* Get file.
*
* @return UploadedFile
*/
public function getFile() {
return $this->file;
}
/**
* Manages the copying of the file to the relevant place on the server
*/
public function upload() {
// the file property can be empty if the field is not required
if (null === $this->getFile()) {
return;
}
// we use the original file name here but you should
// sanitize it at least to avoid any security issues
// move takes the target directory and target filename as params
$this->getFile()->move(
Image::SERVER_PATH_TO_IMAGE_FOLDER, $this->getFile()->getClientOriginalName()
);
// set the path property to the filename where you've saved the file
$this->filename = $this->getFile()->getClientOriginalName();
// clean up the file property as you won't need it anymore
$this->setFile(null);
}
/**
* Lifecycle callback to upload the file to the server
*/
public function lifecycleFileUpload() {
$this->upload();
}
/**
* Updates the hash value to force the preUpdate and postUpdate events to fire
*/
public function refreshUpdated() {
$this->setUpdated(new \DateTime("now"));
}
}
我的BlogAdmin： 命名空间MyBlogBundle \ Admin;
use Sonata\AdminBundle\Admin\Admin;
use Sonata\AdminBundle\Datagrid\ListMapper;
use Sonata\AdminBundle\Datagrid\DatagridMapper;
use Sonata\AdminBundle\Form\FormMapper;
class BlogAdmin extends Admin
{
protected $baseRouteName = 'MyBlogBundle\Entity\BlogAdmin';
protected $baseRoutePattern = 'blog_admin';
protected function configureFormFields(FormMapper $formMapper)
{
$formMapper
->add('title', 'text', array('label' => 'Blog Title'))
->add('tag','text')
->add('file', 'file', array('required' => false))
->add('text','textarea') //if no type is specified, SonataAdminBundle tries to guess it
->add('author')
;
}
protected function configureDatagridFilters(DatagridMapper $datagridMapper)
{
$datagridMapper
->add('title')
->add('author')
;
}
protected function configureListFields(ListMapper $listMapper)
{
$listMapper
->addIdentifier('title')
->add('author')
;
}
public function prePersist($image) {
$this->manageFileUpload($image);
}
public function preUpdate($image) {
$this->manageFileUpload($image);
}
private function manageFileUpload($image) {
if ($image->getFile()) {
$image->refreshUpdated();
}
}
}
和Blog.orm.yml
MyBlogBundle\Entity\Image:
type: entity
repositoryClass: MyBlogBundle\Entity\Repositories\ImageRepository
table: images
id:
id:
type: integer
generator: { strategy: AUTO }
fields:
filename:
type: string
length: 100
updated: # changed when files are uploaded, to force preUpdate and postUpdate to fire
type: datetime
nullable: true
# ... other fields ...
lifecycleCallbacks:
prePersist: [ lifecycleFileUpload ]
preUpdate: [ lifecycleFileUpload ]
答案 0 :(得分：0)
您忘记为UploadedFile类添加use语句，您必须添加：
<强>的src / MyBLogBundle /实体/ blog.php的
<?php
use Symfony\Component\HttpFoundation\File\UploadedFile;
class Blog
{
}
如果UploadedFile不在文件的默认命名空间中，则需要指定它的位置（当前：src / MyBLogBundle / Entity）