我的控制器看起来像这样:
if ($request->getMethod() == 'POST') {
$form->bind($request);
if ($form->isValid()) {
$em->persist($team);
$em->flush();
...
}
}
我的实体的一部分涉及图像(我很确定我需要在这里做些什么,但不知道具体是什么):
/**
* @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());
}
编辑
好的,我对这个答案的代码进行了一些更改,因为显然事件监听器在回调中要求一个FormEvent
实例,而不是FormInterface
实例。
$builder->addEventListener(FormEvents::POST_SUBMIT, function (FormEvent $event) {
// Retrieve submitted data
$form = $event->getForm();
$item = $event->getData();
// Test if upload image is null (maybe adapt it to work with your code)
if (null !== $form->get('image')->getData()) {
var_dump($form->get('image')->getData());
die('image provided');
$item->setImage($form->get('image')->getData());
}
当我提供一个图片时,脚本会按预期进入测试并执行die()
。但是如果我没有提供任何文件,则脚本不会进入if()
测试,但是数据库中的字段仍然被清空为一个空值。有什么想法吗?
如下所要求,这是表格:
// src/Van/TeamsBundle/Form/TeamEditType.php
namespace Van\TeamsBundle\Form;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
use Symfony\Component\Form\FormEvent;
use Symfony\Component\Form\FormEvents;
class TeamEditType extends TeamType // Ici, on hérite de ArticleType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
// On fait appel à la méthode buildForm du parent, qui va ajouter tous les champs à $builder
parent::buildForm($builder, $options);
// On supprime celui qu'on ne veut pas dans le formulaire de modification
$builder->remove('image')
->add('image', 'file', array(
'data_class' => null,
'required' => false
))
;
$builder->addEventListener(FormEvents::POST_SUBMIT, function (FormEvent $event) {
// Retrieve submitted data
$form = $event->getForm();
$item = $event->getData();
// Test if upload image is null (maybe adapt it to work with your code)
if (null !== $form->get('image')->getData()) {
var_dump($form->get('image')->getData());
die('image provided');
$item->setImage($form->get('image')->getData());
}
});
}
// On modifie cette méthode car les deux formulaires doivent avoir un nom différent
public function getName()
{
return 'van_teamsbundle_teamedittype';
}
}
以及整个团队实体:
<?php
namespace Van\TeamsBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
/**
* Team
*
* @ORM\Table()
* @ORM\HasLifecycleCallbacks
* @ORM\Entity
* @ORM\Entity(repositoryClass="Van\TeamsBundle\Entity\TeamRepository") @ORM\Table(name="van_teams")
*/
class Team
{
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="name", type="string", length=100)
*/
private $name;
/**
* @var string
*
* @ORM\Column(name="countryCode", type="string", length=2)
*/
private $countryCode;
/**
* @ORM\ManyToOne(targetEntity="Van\TeamsBundle\Entity\Game")
* @ORM\JoinColumn(nullable=false)
*/
private $game;
/**
* @ORM\ManyToOne(targetEntity="Van\TeamsBundle\Entity\Statut")
* @ORM\JoinColumn(nullable=false)
*/
private $statut;
/**
* @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 name
*
* @param string $name
* @return Team
*/
public function setName($name)
{
$this->name = $name;
return $this;
}
/**
* Get name
*
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* Set countryCode
*
* @param string $countryCode
* @return Team
*/
public function setCountryCode($countryCode)
{
$this->countryCode = $countryCode;
return $this;
}
/**
* Get countryCode
*
* @return string
*/
public function getCountryCode()
{
return $this->countryCode;
}
/**
* Set image
*
* @param string $image
* @return Team
*/
public function setImage($image)
{
$this->image = $image;
return $this;
}
/**
* Get image
*
* @return string
*/
public function getImage()
{
return $this->image;
}
/**
* Set game
*
* @param \Van\TeamsBundle\Entity\Game $game
* @return Team
*/
public function setGame(\Van\TeamsBundle\Entity\Game $game)
{
$this->game = $game;
return $this;
}
/**
* Get game
*
* @return \Van\TeamsBundle\Entity\Game
*/
public function getGame()
{
return $this->game;
}
/**
* Set statut
*
* @param \Van\TeamsBundle\Entity\Statut $statut
* @return Team
*/
public function setStatut(\Van\TeamsBundle\Entity\Statut $statut)
{
$this->statut = $statut;
return $this;
}
/**
* Get statut
*
* @return \Van\TeamsBundle\Entity\Statut
*/
public function getStatut()
{
return $this->statut;
}
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();
return __DIR__ . '/../../../../web/uploads/';
}
protected function getTmpUploadRootDir() {
// the absolute directory path where uploaded documents should be saved
return __DIR__ . '/../../../../web/uploads_tmp/';
}
/**
* @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());
}
}
编辑2
我已经做到了。当我提供一张图片时,它会被保存在数据库中的图片字段中,并重定向到我的主页。当我没有提供任何图片时,不会发生重定向,并且在我的表单中的文件输入框上方出现以下消息:“找不到该文件”。在我的TeamEditType
类中,我做了以下操作,因此图片不是必需的。
$builder->remove('image')
->add('image', 'file', array(
'data_class' => null,
'required' => false
))
;