使用LifecycleCallbacks时找不到文件 [英] The file could not be found while using LifecycleCallbacks
本文介绍了使用LifecycleCallbacks时找不到文件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我在symfony2中的form validation上有问题.
就我而言，即使我在填写表格时提供了一个文件
In my case the $form->isValid() command results in The file could not be found. even though that I provide a file during filling in the form
另外调试documents entity中的setFile功能可以得出结论，文件值已正确设置.下面提供了setFile函数和print_r的结果:
Additionally debuging of setFile function in documents entity leads to conclusion that file value is set correctly. The setFile function and results of print_r are provided below:
/**
* Sets file.
*
* @param UploadedFile $file
*/
public function setFile(UploadedFile $file = null)
{
$this->file = $file;
print_r($this->file); // [THIS IS FOR TEST]
// check if we have an old image path
if (is_file($this->getAbsolutePath())) {
// store the old name to delete after the update
$this->temp = $this->getAbsolutePath();
} else {
$this->link = 'initial';
}
}
print_r结果:
print_r result:
Symfony\Component\HttpFoundation\File\UploadedFile Object ( [test:Symfony\Component\HttpFoundation\File\UploadedFile:private] => [originalName:Symfony\Component\HttpFoundation\File\UploadedFile:private] => firefox.exe [mimeType:Symfony\Component\HttpFoundation\File\UploadedFile:private] => application/octet-stream [size:Symfony\Component\HttpFoundation\File\UploadedFile:private] => 338032 [error:Symfony\Component\HttpFoundation\File\UploadedFile:private] => 0 [pathName:SplFileInfo:private] => C:\wamp\tmp\php9DC3.tmp [fileName:SplFileInfo:private] => php9DC3.tmp )
我的问题是为什么即使正确提供了文件，表单验证器也会失败?
当我注释掉部分setFile()函数时，它开始起作用，导致移动异常.
When I comment out part of my setFile() function it starts to work resulting in move exception.
'
/**
* Sets file.
*
* @param UploadedFile $file
*/
public function setFile(UploadedFile $file = null)
{
$this->file = $file;
/*if (is_file($this->getAbsolutePath())) {
// store the old name to delete after the update
$this->temp = $this->getAbsolutePath();
} else {
$this->link = 'initial';
}*/
}
我的表单类:
<?php
namespace AppBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
class DocumentsType extends AbstractType
{
/**
* @param FormBuilderInterface $builder
* @param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('marker')
->add('document_date', 'date', array('widget' => 'single_text', 'format' => 'yyyy-MM-dd'))
->add('file', 'file')
->add('notes', 'text', array('required' => "false"))
;
}
我的控制器中使用is_valid函数的结果为否:
My controller in which is_valid function results in negative result:
/**
* This code is aimed at checking if the book is choseen and therefore whether any further works may be carried out
*/
$session = new Session();
if(!$session->get("App_Books_Chosen_Lp")) return new RedirectResponse($this->generateUrl('app_listbooks'));
// Authorization goes here
$documents = new Documents();
$form = $this->createForm(new DocumentsType(), $documents);
$form->add('save', 'submit', array('label' => 'Dodaj dokument'));
$form->handleRequest($request);
if ($form->isValid()) {
我的文档班级:
<?php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\HttpFoundation\File\UploadedFile;
/**
* @ORM\Entity
* @ORM\HasLifecycleCallbacks
* @ORM\Table(name="Documents")
*/
class Documents
{
/**
* @ORM\Column(type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @ORM\ManyToOne(targetEntity="Books", inversedBy="documents")
* @ORM\JoinColumn(name="book_id", referencedColumnName="id")
*/
protected $book;
/**
* @ORM\Column(type="string", length=220)
*/
protected $marker;
/**
* @ORM\Column(type="date", length=220)
*/
protected $document_date;
/**
* @ORM\Column(type="string", length=220)
* @Assert\File(maxSize="6000000")
*/
protected $link;
/**
* @ORM\Column(type="text")
*/
protected $notes;
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set marker
*
* @param string $marker
* @return Documents
*/
public function setMarker($marker)
{
$this->marker = $marker;
return $this;
}
/**
* Get marker
*
* @return string
*/
public function getMarker()
{
return $this->marker;
}
/**
* Set document_date
*
* @param \DateTime $documentDate
* @return Documents
*/
public function setDocumentDate($documentDate)
{
$this->document_date = $documentDate;
return $this;
}
/**
* Get document_date
*
* @return \DateTime
*/
public function getDocumentDate()
{
return $this->document_date;
}
/**
* Set link
*
* @param string $link
* @return Documents
*/
public function setLink($link)
{
$this->link = $link;
return $this;
}
/**
* Get link
*
* @return string
*/
public function getLink()
{
return $this->link;
}
/**
* Set notes
*
* @param string $notes
* @return Documents
*/
public function setNotes($notes)
{
$this->notes = $notes;
return $this;
}
/**
* Get notes
*
* @return string
*/
public function getNotes()
{
return $this->notes;
}
/**
* Set book
*
* @param \AppBundle\Entity\Books $book
* @return Documents
*/
public function setBook(\AppBundle\Entity\Books $book = null)
{
$this->book = $book;
return $this;
}
/**
* Get book
*
* @return \AppBundle\Entity\Books
*/
public function getBook()
{
return $this->book;
}
/*
* ### FILE UPLOAD PROCESS ###
*/
/**
* @Assert\File(maxSize="6000000")
*/
private $file;
/**
* Stores temporay path
*/
private $temp;
/**
* Sets file.
*
* @param UploadedFile $file
*/
public function setFile(UploadedFile $file = null)
{
$this->file = $file;
print_r($this->file); // [THIS IS FOR TEST]
// check if we have an old image path
if (is_file($this->getAbsolutePath())) {
// store the old name to delete after the update
$this->temp = $this->getAbsolutePath();
} else {
$this->link = 'initial';
}
}
/**
* @ORM\PrePersist()
* @ORM\PreUpdate()
*/
public function preUpload()
{
if (null !== $this->getFile()) {
$this->link = $this->getFile()->guessExtension();
}
}
/**
* Get file.
*
* @return UploadedFile
*/
public function getFile()
{
return $this->file;
}
public function getAbsolutePath()
{
return null === $this->link
? null
: $this->getUploadRootDir().'/'.$this->id.'.'.$this->link;
}
public function getWebPath()
{
return null === $this->link
? null
: $this->getUploadDir().'/'.$this->link;
}
protected function getUploadRootDir()
{
// the absolute directory where uploaded
// documents should be saved
return __DIR__.'/../../../web/'.$this->getUploadDir();
}
protected function getUploadDir()
{
// get rid of the __DIR__ so it doesn't screw up
// when displaying uploaded doc/image in the view.
return 'uploads/documents';
}
/**
* @ORM\PostPersist()
* @ORM\PostUpdate()
*/
public function upload()
{
if (null === $this->getFile()) {
return;
}
// check if we have an old image
if (isset($this->temp)) {
// delete the old image
unlink($this->temp);
// clear the temp image path
$this->temp = null;
}
// you must throw an exception here if the file cannot be moved
// so that the entity is not persisted to the database
// which the UploadedFile move() method does
$this->getFile()->move(
$this->getUploadRootDir(),
$this->id.'.'.$this->getFile()->guessExtension()
);
$this->setFile(null);
}
/**
* @ORM\PreRemove()
*/
public function storeFilenameForRemove()
{
$this->temp = $this->getAbsolutePath();
}
/**
* @ORM\PostRemove()
*/
public function removeUpload()
{
if (isset($this->temp)) {
unlink($this->temp);
}
}
}
推荐答案
我发现了问题所在.我已将链接"列标记为文件，因此验证器失败，因为链接是文本而不是文件.
I have found out what is the problem. I have marked "link" column as a file and thus the validator was failing as link was text and not a file.
我的链接代码是:
/**
* @ORM\Column(type="string", length=220)
* @Assert\File(maxSize="6000000")
*/
protected $link;
和该行:
* @Assert\File(maxSize="6000000")
不应该在那里.
这篇关于使用LifecycleCallbacks时找不到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！
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