因为我有一个自定义构建的jQuery插件，用于将文件上传传递给我的symfony2 webapp，我正在寻找在控制器中处理此上传的方法。
我目前拥有的标准（非ajax）文件上传（并且适用于同步调用）看起来像这样
控制器摘录
...
$entity = new Image();
$request = $this->getRequest();
$form = $this->createForm(new ImageType($createAction), $entity);
$form->bind($request); // <-- Find a way to make this connection manually?!
//check that a file was chosen
$fileExists = isset($entity->file);
if ( ($form->isValid()) && ($fileExists) ) {
$em = $this->getDoctrine()->getManager();
$em->persist($entity);
$em->flush();
}
...
表单类型：表单只接受文件和名称：
class ImageType extends AbstractType
{
...
public function buildForm(FormBuilderInterface $builder, array $options)
{
$createAction = $this->createAction;
if ($createAction) {
$builder
->add('file')
;
}
$builder
->add('name', 'text', array('label' => 'Namn'))
;
}
...
}
根据我的理解（或者说其他话显然已经明白了）带有symfony2和doctrine的文件上传系统，在这次调用的引擎盖下会有相当多的魔力
$form->bind($request);
例如，如果我跳过这个bind（），而是尝试像这样手动创建Image实体......
$request = $this->getRequest();
$parent = $request->request->get('parent');
$file = $request->request->get('file1');
$name = $request->request->get('name');
$entity->setName( $name );
$entity->setFile( $file );
$entity->setFolder( null );
...我发现它甚至没有setFile（），所以以其他方式处理。这是图片实体：
namespace BizTV\MediaManagementBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
/**
* BizTV\MediaManagementBundle\Entity\Image
*
* @ORM\Table(name="image")
* @ORM\Entity
* @ORM\HasLifecycleCallbacks
*/
class Image
{
/**
* @var integer $id
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string $name
*
* @ORM\Column(name="name", type="string", length=255)
* @Assert\NotBlank(message = "Bilden måste ha ett namn")
*/
private $name;
/**
* @var integer $width
*
* @ORM\Column(name="width", type="integer")
*/
private $width;
/**
* @var integer $height
*
* @ORM\Column(name="height", type="integer")
*/
private $height;
/**
* @ORM\Column(type="string", length=255, nullable=true)
*/
private $path;
//The deleteRequested variable is to flag that an image has been deleted by user.
//Due to slideshow issues we can however not delete the image right away, we can't risk to remove it from the
//cache manifest before the slideshow round is up.
/**
* @var time $deleteRequested
*
* @ORM\Column(name="delete_requested", type="datetime", nullable=true)
*/
private $deleteRequested;
/**
* @var object BizTV\BackendBundle\Entity\company
*
* @ORM\ManyToOne(targetEntity="BizTV\BackendBundle\Entity\company")
* @ORM\JoinColumn(name="company", referencedColumnName="id", nullable=false)
*/
protected $company;
/**
* @var object BizTV\MediaManagementBundle\Entity\Folder
*
* @ORM\ManyToOne(targetEntity="BizTV\MediaManagementBundle\Entity\Folder")
* @ORM\JoinColumn(name="folder", referencedColumnName="id", nullable=true)
*/
protected $folder;
/**
* @Assert\File(maxSize="12000000")
*/
public $file;
/**
* @ORM\OneToOne(targetEntity="BizTV\MediaManagementBundle\Entity\QrImage", mappedBy="image")
*/
protected $qr;
/**
* @ORM\PrePersist()
* @ORM\PreUpdate()
*/
public function preUpload()
{
if (null !== $this->file) {
// do whatever you want to generate a unique name
$this->path = sha1(uniqid(mt_rand(), true)).'.'.$this->file->guessExtension();
}
}
/**
* @ORM\PostPersist()
* @ORM\PostUpdate()
*/
public function upload()
{
if (null === $this->file) {
return;
}
// if there is an error when moving the file, an exception will
// be automatically thrown by move(). This will properly prevent
// the entity from being persisted to the database on error
$this->file->move($this->getUploadRootDir(), $this->path);
unset($this->file);
}
/**
* @ORM\PostRemove()
*/
public function removeUpload()
{
if ($file = $this->getAbsolutePath()) {
unlink($file);
}
}
public function getAbsolutePath()
{
return null === $this->path ? null : $this->getUploadRootDir().'/'.$this->path;
}
public function getWebPath()
{
return null === $this->path ? null : $this->getUploadDir().'/'.$this->path;
}
protected function getUploadRootDir()
{
// the absolute directory path where uploaded documents should be saved
return __DIR__.'/../../../../web/'.$this->getUploadDir();
}
protected function getUploadDir()
{
// get rid of the __DIR__ so it doesn't screw when displaying uploaded doc/image in the view.
return 'uploads/images/'.$this->getCompany()->getId();
}
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set name
*
* @param string $name
*/
public function setName($name)
{
$this->name = $name;
}
/**
* Get name
*
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* Set width
*
* @param integer $width
*/
public function setWidth($width)
{
$this->width = $width;
}
/**
* Get width
*
* @return integer
*/
public function getWidth()
{
return $this->width;
}
/**
* Set height
*
* @param integer $height
*/
public function setHeight($height)
{
$this->height = $height;
}
/**
* Get height
*
* @return integer
*/
public function getHeight()
{
return $this->height;
}
/**
* Set path
*
* @param string $path
*/
public function setPath($path)
{
$this->path = $path;
}
/**
* Get path
*
* @return string
*/
public function getPath()
{
return $this->path;
}
/**
* Set company
*
* @param BizTV\BackendBundle\Entity\company $company
*/
public function setCompany(\BizTV\BackendBundle\Entity\company $company)
{
$this->company = $company;
}
/**
* Get company
*
* @return BizTV\BackendBundle\Entity\company
*/
public function getCompany()
{
return $this->company;
}
/**
* Set folder
*
* @param BizTV\MediaManagementBundle\Entity\Folder $folder
*/
public function setFolder(\BizTV\MediaManagementBundle\Entity\Folder $folder = NULL)
{
$this->folder = $folder;
}
/**
* Get folder
*
* @return BizTV\MediaManagementBundle\Entity\Folder
*/
public function getFolder()
{
return $this->folder;
}
/**
* Set qr
*
* @param BizTV\MediaManagementBundle\Entity\QrImage $qr
*/
public function setQr(\BizTV\MediaManagementBundle\Entity\QrImage $qr = null)
{
$this->qr = $qr;
}
/**
* Get qr
*
* @return BizTV\MediaManagementBundle\Entity\QrImage
*/
public function getQr()
{
return $this->qr;
}
/**
* Set deleteRequested
*
* @param date $deleteRequested
*/
public function setDeleteRequested($deleteRequested = null)
{
$this->deleteRequested = $deleteRequested;
}
/**
* Get deleteRequested
*
* @return date
*/
public function getDeleteRequested()
{
return $this->deleteRequested;
}
}
答案 0 :(得分：3)
1）首先创建你的实体：
namespace XXX;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
/**
* @ORM\Table()
* @ORM\Entity
*/
class Article
{
/**
* @var integer $id
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string $image
* @Assert\File( maxSize = "1024k", mimeTypesMessage = "Please upload a valid Image")
* @ORM\Column(name="image", type="string", length=255)
*/
private $image;
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set image
*
* @param string $image
*/
public function setImage($image)
{
$this->image = $image;
}
/**
* Get image
*
* @return string
*/
public function getImage()
{
return $this->image;
}
}
2）构建表单：然后我们将为此Article实体创建一个简单的表单类型，以适应其他形式：ArticleType.php
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilder;
class ArticleType extends AbstractType
{
public function buildForm(FormBuilder $builder, array $options)
{
$builder
->add('image')
->add('...')
;
}
public function getName()
{
return 'xxx_articletype';
}
}
3）创建控制器：下面的控制器向您展示如何管理整个过程：ArticleController.php：
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
/**
* Article controller.
*
*/
class ArticleController extends Controller
{
/**
* Finds and displays a Article entity.
*
*/
public function showAction($id)
{
$em = $this->getDoctrine()->getEntityManager();
$entity = $em->getRepository('XXXBundle:Article')->find($id);
if (!$entity) {
throw $this->createNotFoundException('Unable to find Article entity.');
}
return $this->render('XXXBundle:Article:show.html.twig', array(
'entity' => $entity,
));
}
/**
* Displays a form to create a new Article entity.
*
*/
public function newAction()
{
$entity = new Article();
//$entity = $em->getRepository('CliniqueGynecoBundle:Article');
$form = $this->createForm(new ArticleType(), $entity);
return $this->render('XXXBundle:Article:new.html.twig', array(
'entity' => $entity,
'form' => $form->createView()
));
}
/**
* Creates a new Article entity.
*
*/
public function createAction()
{
$entity = new Article();
$request = $this->getRequest();
$form = $this->createForm(new ArticleType(), $entity);
$form->bindRequest($request);
if ($form->isValid()) {
$em = $this->getDoctrine()->getEntityManager();
$em->persist($entity);
$em->flush();
return $this->redirect($this->generateUrl('article_show', array('id' => $entity->getId())));
}
return $this->render('XXXBundle:Article:new.html.twig', array(
'entity' => $entity,
'form' => $form->createView()
));
}
private function createDeleteForm($id)
{
return $this->createFormBuilder(array('id' => $id))
->add('id', 'hidden')
->getForm()
;
}
}
4）上传表单的布局：new.html.twig
<form action="{{ path('basearticle_create') }}" method="post" {{ form_enctype(form) }}>
{{ form_widget(form) }}
<p>
<button class="btn btn-primary" type="submit">Create</button>
</p>
</form>
5）显示布局：show.html.twig
<table>
<tr>
<td align="center" valign="top"><img src="{{ asset('upload/' ~ entity.id ~'/' ~ entity.image)}}" alt="" height="525" width="666" /></td>
</tr>
</table>
6）使用«Lifecycle Callbacks»在«Lifecycle callbacks»中挂钩实体：«@ ORM \ HasLifecycleCallbacks»
/**
*
* @ORM\Table()
* @ORM\HasLifecycleCallbacks
* @ORM\Entity
*/
class Article
{
....
7）添加了下载文件的方法：
class Article
{
....................................
public function getFullImagePath() {
return null === $this->image ? null : $this->getUploadRootDir(). $this->image;
}
protected function getUploadRootDir() {
// the absolute directory path where uploaded documents should be saved
return $this->getTmpUploadRootDir().$this->getId()."/";
}
protected function getTmpUploadRootDir() {
// the absolute directory path where uploaded documents should be saved
return __DIR__ . '/../../../../web/upload/';
}
/**
* @ORM\PrePersist()
* @ORM\PreUpdate()
*/
public function uploadImage() {
// the file property can be empty if the field is not required
if (null === $this->image) {
return;
}
if(!$this->id){
$this->image->move($this->getTmpUploadRootDir(), $this->image->getClientOriginalName());
}else{
$this->image->move($this->getUploadRootDir(), $this->image->getClientOriginalName());
}
$this->setImage($this->image->getClientOriginalName());
}
/**
* @ORM\PostPersist()
*/
public function moveImage()
{
if (null === $this->image) {
return;
}
if(!is_dir($this->getUploadRootDir())){
mkdir($this->getUploadRootDir());
}
copy($this->getTmpUploadRootDir().$this->image, $this->getFullImagePath());
unlink($this->getTmpUploadRootDir().$this->image);
}
/**
* @ORM\PreRemove()
*/
public function removeImage()
{
unlink($this->getFullImagePath());
rmdir($this->getUploadRootDir());
}