如何在更新表单中检索存储在数据库中的图像？
我已经设置了一个 Profile 实体：
<?php
namespace Krown\DashboardBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
use FOS\UserBundle\Model\User as BaseUser;
use Symfony\Component\Validator\Constraints as Assert;
use Krown\DashboardBundle\Entity\Status;
use Krown\DashboardBundle\Entity\Picture;
use Symfony\Component\HttpFoundation\File\File;
use Vich\UploaderBundle\Mapping\Annotation as Vich;
/**
* Profile
*
* @ORM\Table(name="profile")
* @ORM\Entity(repositoryClass="Krown\DashboardBundle\Repository\ProfileRepository")
* @Vich\Uploadable
*/
class Profile
{
/**
* @var int
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* NOTE: This is not a mapped field of entity metadata, just a simple property.
*
* @Vich\UploadableField(mapping="product_image", fileNameProperty="imageName")
*
* @var File
*/
private $imageFile;
/**
* @ORM\Column(type="string", length=255, nullable=true)
*
* @var string
*/
private $imageName;
/**
* @ORM\Column(type="datetime", nullable=true)
*
* @var \DateTime
*/
private $updatedAt;
/**
* @var boolean
*
* @ORM\Column(name="avocat", type="boolean")
*/
private $avocat;
/**
* @var string
*
* @ORM\Column(name="breve_description", type="string", nullable=true)
*/
protected $breve_description;
/**
* @var array
*
* @ORM\Column(name="fields_of_law", type="array", nullable=true)
*/
protected $fields_of_law;
/**
* @var string
*
* @ORM\Column(name="registre_ou_bareau", type="string", nullable=true)
*/
protected $registre_ou_bareau;
/**
* @var string
*
* @ORM\Column(name="canton_actif", type="string", nullable=true)
*/
protected $canton_actif;
/**
* @var string
*
* @ORM\Column(name="annee_obtention_brevet", type="string", nullable=true)
*/
protected $annee_obtention_brevet;
/**
* @var string
*
* @ORM\Column(name="titre_supplementaire", type="string", nullable=true)
*/
protected $titre_supplementaire;
/**
* @var string
*
* @ORM\Column(name="years_of_experience", type="string", nullable=true)
*/
protected $years_of_experience;
/**
* @var string
*
* @ORM\Column(name="langues_de_travail", type="string", nullable=true)
*/
protected $langues_de_travail;
/**
* @var string
*
* @ORM\Column(name="email_contact", type="string", nullable=true)
*/
protected $email_contact;
/**
* @var string
*
* @ORM\Column(name="numero_telephone", type="string", nullable=true)
*/
protected $numero_telephone;
/**
* @var string
*
* @ORM\Column(name="title", type="string", length=255)
*/
private $title;
/**
* @var string
*
* @ORM\Column(name="body", type="text")
*/
private $body;
/**
* @var \DateTime
*
* @ORM\Column(name="created_date", type="datetime")
*/
private $createdDate;
/**
* @ORM\OneToOne(targetEntity="User")
* @ORM\JoinColumn(name="user_id", referencedColumnName="id")
*/
protected $user;
/**
* Get id
*
* @return int
*/
public function getId()
{
return $this->id;
}
/**
* Set title
*
* @param string $title
*
* @return Profile
*/
public function setTitle($title)
{
$this->title = $title;
return $this;
}
/**
* Get title
*
* @return string
*/
public function getTitle()
{
return $this->title;
}
/**
* Set body
*
* @param string $body
*
* @return Profile
*/
public function setBody($body)
{
$this->body = $body;
return $this;
}
/**
* Get body
*
* @return string
*/
public function getBody()
{
return $this->body;
}
/**
* Set createdDate
*
* @param \DateTime $createdDate
*
* @return Profile
*/
public function setCreatedDate($createdDate)
{
$this->createdDate = $createdDate;
return $this;
}
/**
* Get createdDate
*
* @return \DateTime
*/
public function getCreatedDate()
{
return $this->createdDate;
}
/**
* Set user
*
* @param \Krown\DashboardBundle\Entity\User $user
*
* @return Profile
*/
public function setUser(\Krown\DashboardBundle\Entity\User $user = null)
{
$this->user = $user;
return $this;
}
/**
* Get user
*
* @return \Krown\DashboardBundle\Entity\User
*/
public function getUser()
{
return $this->user;
}
/**
* If manually uploading a file (i.e. not using Symfony Form) ensure an instance
* of 'UploadedFile' is injected into this setter to trigger the update. If this
* bundle's configuration parameter 'inject_on_load' is set to 'true' this setter
* must be able to accept an instance of 'File' as the bundle will inject one here
* during Doctrine hydration.
*
* @param File|\Symfony\Component\HttpFoundation\File\UploadedFile $image
*
* @return Product
*/
public function setImageFile(File $image = null)
{
$this->imageFile = $image;
if ($image) {
// It is required that at least one field changes if you are using doctrine
// otherwise the event listeners won't be called and the file is lost
$this->updatedAt = new \DateTime('now');
}
return $this;
}
/**
* @return File
*/
public function getImageFile()
{
return $this->imageFile;
}
/**
* Set imageName
*
* @param string $imageName
*
* @return Profile
*/
public function setImageName($imageName)
{
$this->imageName = $imageName;
return $this;
}
/**
* Get imageName
*
* @return string
*/
public function getImageName()
{
return $this->imageName;
}
/**
* Set updatedAt
*
* @param \DateTime $updatedAt
*
* @return Profile
*/
public function setUpdatedAt($updatedAt)
{
$this->updatedAt = $updatedAt;
return $this;
}
/**
* Get updatedAt
*
* @return \DateTime
*/
public function getUpdatedAt()
{
return $this->updatedAt;
}
/**
* Set avocat
*
* @param boolean $avocat
*
* @return Profile
*/
public function setAvocat($avocat)
{
$this->avocat = $avocat;
return $this;
}
/**
* Get avocat
*
* @return boolean
*/
public function getAvocat()
{
return $this->avocat;
}
/**
* Set breveDescription
*
* @param string $breveDescription
*
* @return Profile
*/
public function setBreveDescription($breveDescription)
{
$this->breve_description = $breveDescription;
return $this;
}
/**
* Get breveDescription
*
* @return string
*/
public function getBreveDescription()
{
return $this->breve_description;
}
/**
* Set fieldsOfLaw
*
* @param array $fieldsOfLaw
*
* @return Profile
*/
public function setFieldsOfLaw($fieldsOfLaw)
{
$this->fields_of_law = $fieldsOfLaw;
return $this;
}
/**
* Get fieldsOfLaw
*
* @return array
*/
public function getFieldsOfLaw()
{
return $this->fields_of_law;
}
/**
* Set registreOuBareau
*
* @param string $registreOuBareau
*
* @return Profile
*/
public function setRegistreOuBareau($registreOuBareau)
{
$this->registre_ou_bareau = $registreOuBareau;
return $this;
}
/**
* Get registreOuBareau
*
* @return string
*/
public function getRegistreOuBareau()
{
return $this->registre_ou_bareau;
}
/**
* Set cantonActif
*
* @param string $cantonActif
*
* @return Profile
*/
public function setCantonActif($cantonActif)
{
$this->canton_actif = $cantonActif;
return $this;
}
/**
* Get cantonActif
*
* @return string
*/
public function getCantonActif()
{
return $this->canton_actif;
}
/**
* Set anneeObtentionBrevet
*
* @param string $anneeObtentionBrevet
*
* @return Profile
*/
public function setAnneeObtentionBrevet($anneeObtentionBrevet)
{
$this->annee_obtention_brevet = $anneeObtentionBrevet;
return $this;
}
/**
* Get anneeObtentionBrevet
*
* @return string
*/
public function getAnneeObtentionBrevet()
{
return $this->annee_obtention_brevet;
}
/**
* Set titreSupplementaire
*
* @param string $titreSupplementaire
*
* @return Profile
*/
public function setTitreSupplementaire($titreSupplementaire)
{
$this->titre_supplementaire = $titreSupplementaire;
return $this;
}
/**
* Get titreSupplementaire
*
* @return string
*/
public function getTitreSupplementaire()
{
return $this->titre_supplementaire;
}
/**
* Set yearsOfExperience
*
* @param string $yearsOfExperience
*
* @return Profile
*/
public function setYearsOfExperience($yearsOfExperience)
{
$this->years_of_experience = $yearsOfExperience;
return $this;
}
/**
* Get yearsOfExperience
*
* @return string
*/
public function getYearsOfExperience()
{
return $this->years_of_experience;
}
/**
* Set languesDeTravail
*
* @param string $languesDeTravail
*
* @return Profile
*/
public function setLanguesDeTravail($languesDeTravail)
{
$this->langues_de_travail = $languesDeTravail;
return $this;
}
/**
* Get languesDeTravail
*
* @return string
*/
public function getLanguesDeTravail()
{
return $this->langues_de_travail;
}
/**
* Set emailContact
*
* @param string $emailContact
*
* @return Profile
*/
public function setEmailContact($emailContact)
{
$this->email_contact = $emailContact;
return $this;
}
/**
* Get emailContact
*
* @return string
*/
public function getEmailContact()
{
return $this->email_contact;
}
/**
* Set numeroTelephone
*
* @param string $numeroTelephone
*
* @return Profile
*/
public function setNumeroTelephone($numeroTelephone)
{
$this->numero_telephone = $numeroTelephone;
return $this;
}
/**
* Get numeroTelephone
*
* @return string
*/
public function getNumeroTelephone()
{
return $this->numero_telephone;
}
}
以及个人资料更新表单：
public function editAction($id, Request $request)
{
$em = $this->getDoctrine()->getManager();
$profile = $em->getRepository('KrownDashboardBundle:Profile')->find($id);
if (!$profile) {
throw $this->createNotFoundException(
'No news found for id ' . $id
);
}
$form = $this->createFormBuilder($profile)
->add('title', 'text')
->add('breve_description', TextareaType::class, array(
'attr' => array('class' => 'tinymce'),
))
->add('fields_of_law', 'choice', array(
'choices' => array(
'Droit du travail' => "Droit du travail",
'Droit de la famille' => "Droit de la famille",
'Contrats commerciaux' => "Contrats commerciaux",
),
'choices_as_values' => true,
'multiple' => true,
))
->add('imageFile', FileType::class, array(
'label' => 'Photo',
'data' => $profile->getImageFile(),
'required' => false,
)
)
->add('registre_ou_bareau')
->add('canton_actif')
->add('annee_obtention_brevet')
->add('titre_supplementaire')
->add('years_of_experience')
->add('langues_de_travail')
->add('email_contact')
->add('numero_telephone')
->add('avocat')
->getForm();
$form->handleRequest($request);
if ($form->isValid()) {
$em->flush();
return new Response('Profile updated successfully');
}
$build['form'] = $form->createView();
return $this->render('KrownDashboardBundle:Profile:profiles_edit_add.html.twig', $build);
}
在此表单上，我可以完美地更新和检索任何字段，但FileType field除外。
提交表单时，文件 $ imageFile 已正确上传，文件名 $ imageName 存储在数据库中。问题是我在加载时无法附加已经上传到表单的文件。
我可以使用 $ profile-＆gt; getImageName（）获取存储在数据库中的文件名，但是当我执行 $ profile-＆gt; getImageFile（）时，我得到一个空值？
我错过了什么吗？
修改
我还尝试使用这样的文件名手动加载文件。
$profile->setImageFile(
new File(__DIR__.'/../../../../web/images/products/'.$profile->getImageName())
);
现在，当我执行$ profile-＆gt; getImageFile（）时，我可以看到该文件，但它没有附加到表单上。
答案 0 :(得分：0)
您无法将文件附加到文件输入，出于安全考虑，这是不可能的。但是，您可以使用一些jquery库来显示/上传文件（可能是bluimp），或者只显示带有文件路径的图像标记，允许更改用户的文件。
答案 1 :(得分：0)
您应在提交表单之前编写此代码
$image = $profile->getImageFile();
if ($image !== null) {
$profile->setImageFile(new File($this->getParameter('your image dir name') . '/' . $image));
}
$file = $project->getProfilePic();
$project->setProfilePic($file);
，如果要更新或保留旧文件，请尝试此 提交
后粘贴此代码// add the new one
if ($profile->getImageFile() !== null) {
$newImage = $profile->getImageFile();
$newImageName = md5(uniqid()) . '.' . $file->guessExtension();
$newImage->move($this->getParameter('your image dir'), $newImageName);
$project->setImageFile($newImageName);
} else {
//Restore old file name
$profile->setProfilePic($image);
}