Symfony形式。上传文件 [英] Symfony forms. File upload
问题描述
尝试使用Entity管理文件上传，但出现此错误：
Trying to manage file upload with Entity, but i get this error:
致命错误：调用成员函数move（）在第327行上的/home/projectpath/src/BS/MyBundle/Entity/Items.php中的非对象上调用堆栈：0.0002 333264 1. {main}（）/home/projectpath/web/app_dev.php:0 0.0450 1158160 ...
Fatal error: Call to a member function move() on a non-object in /home/projectpath/src/BS/MyBundle/Entity/Items.php on line 327 Call Stack: 0.0002 333264 1. {main}() /home/projectpath/web/app_dev.php:0 0.0450 1158160...
以下是实体类：
namespace BS\BackstretcherBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\HttpFoundation\File\UploadedFile;
use Symfony\Component\Validator\Constraints as Assert;
/**
* MB\MyBundle\Entity\Items
*
* @ORM\Table(name="items")
* @ORM\Entity
* @ORM\HasLifecycleCallbacks
*/
class Items
{
private $filenameForRemove;
/**
* @Assert\File(maxSize="60000000")
*/
public $file;
...
protected function getUploadDir()
{
return 'images/items/';
}
protected function getUploadRootDir()
{
return __DIR__.'/../../../../web/'.$this->getUploadDir();
}
public function getWebPath()
{
return null === $this->file ? null : $this->getUploadDir().'/'.$this->getNameEn();
}
public function getAbsolutePath()
{
return null === $this->file ? null : $this->getUploadRootDir().'/'.$this->getNameEn().'.jpg';
}
/**
* @ORM\PrePersist()
* @ORM\PreUpdate()
*/
public function preUpload()
{
if (null !== $this->file)
{
$this->file = $this->getId() .'.'. $this->file->guessExtension();
}
}
/**
* @ORM\PostPersist()
* @ORM\PostUpdate()
*/
public function upload()
{
if (null === $this->file)
{
return;
}
$this->file->move($this->getUploadRootDir(), $this->file);
unset($this->file);
}
/**
* @ORM\PostRemove()
*/
public function removeUpload()
{
if ($file = $this->getAbsolutePath())
{
unlink($file);
}
}
和控制器：
public function new_productAction(Request $request)
{
$product = new Items();
$product->setPrice(0);
$form = $this->createFormBuilder($product)
->add('Type', 'choice', array(
'choices' => array('1' => 'Product', '0' => 'Article'),
'required' => false,))
->add('Price', 'number')
->add('nameEn', 'text')
->add('file', 'file', array('label' => 'Image', 'required' => true))
->getForm();
if ($request->getMethod() == 'POST')
{
if ($form->isValid())
{
$form->bindRequest($request);
$em = $this->getDoctrine()->getEntityManager();
$em->persist($product);
$em->flush();
return new Response('<html><body>Success!</body></html>');
}
}
return $this->render('MyBundle:Default:admin_page.html.twig', array(
'form' => $form->createView(),
));
}
Symfony版本：2.1.0
Symfony version: 2.1.0
推荐答案
很奇怪
您的代码在控制器中是错误的。验证之前，您必须将请求绑定到表单。之后，您可以检索数据
your code is wrong in your controller. You have to bind your request to your form before validation. After that, you can retrieve your data
if ($request->getMethod() == 'POST')
{
//Note: bindRequest is now deprecated
$form->bind($request);
if ($form->isValid())
{
//retrieve your model hydrated with your form values
$product = $form->getData();
//has upload file ?
if($product->getFile() instanceof UploadedFile){
//you can do your upload logic here wihtout doctrine event if you want
}
$em = $this->getDoctrine()->getEntityManager();
$em->persist($product);
$em->flush();
return new Response('<html><body>Success!</body></html>');
}
}
这篇关于Symfony形式。上传文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
