我有一个问题，我在我的网站上使用 EasyAdminBundle 和 VichUploaderBundle。令人担忧的是，当我删除图像时，它会返回错误，如下所示：
违反完整性约束：1048 Le champ 'image' ne peut être vide (null)
这是我的代码：
配置.yml：
vich_uploader:
db_driver: orm
mappings:
photo_images:
uri_prefix: %app.path.photo_images%
upload_destination: %kernel.root_dir%/../web/uploads/images
namer: vich_uploader.namer_uniqid
我的easyadmin配置：
entities:
Event:
class: AppBundle\Entity\Event
label: 'Evenements'
new:
title: 'Création événement'
fields:
- { property: 'nom', label: 'Nom/Intitulé' }
- { property: 'date', label: 'Date' }
- { property: 'heure', label: 'Heure' }
- { property: 'lieu', label: 'Lieu' }
- { property: 'categorie', label: 'Catégorie' }
- { property: 'prix', label: 'Prix' }
- { property: 'imageFile', label: 'Image',type: 'vich_image' }
- { property: 'isActive', label: 'Publié' }
edit:
title: 'Evenement (#%%entity_id%%)'
fields:
- { property: 'nom', label: 'Nom/Intitulé' }
- { property: 'date', label: 'Date' }
- { property: 'heure', label: 'Heure' }
- { property: 'lieu', label: 'Lieu' }
- { property: 'categorie', label: 'Catégorie' }
- { property: 'prix', label: 'Prix' }
- { property: 'imageFile', label: 'Image', type: 'vich_image' }
- { property: 'isActive', label: 'Publié' }
我的实体：
<?php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\HttpFoundation\File\File;
use Vich\UploaderBundle\Mapping\Annotation as Vich;
/**
* Events
*
* @ORM\Table(name="event")
* @ORM\Entity(repositoryClass="AppBundle\Repository\EventRepository")
* @Vich\Uploadable
*/
class Event
{
/**
* @var int
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
* @Assert\NotBlank(message = "not null")
* @ORM\Column(name="nom", type="string", length=255)
*/
private $nom;
/**
* @var \DateTime
*
* @ORM\Column(name="date", type="date")
*/
private $date;
/**
* @var \Time
*
* @ORM\Column(name="heure", type="time")
*/
private $heure;
/**
* @var string
* @Assert\NotBlank(message = "not null")
* @ORM\Column(name="lieu", type="string", length=255)
*/
private $lieu;
/**
* @var string
* @Assert\NotBlank(message = "not null")
* @ORM\Column(name="categorie", type="string", length=255)
*/
private $categorie;
/**
* @var float
* @ORM\Column(name="prix", type="float")
*/
private $prix;
/**
* @var bool
* @ORM\Column(name="isActive", type="boolean", options={"default":"0"})
*/
protected $isActive;
/**
* One Event has Many Command.
* @ORM\OneToMany(targetEntity="Commande", mappedBy="event")
*/
private $commandes;
/**
* @ORM\Column(type="string", length=255)
* @var string
*/
private $image;
/**
* @Vich\UploadableField(mapping="photo_images", fileNameProperty="image")
* @var File
*/
private $imageFile;
/**
* @ORM\Column(type="datetime")
* @var \DateTime
*/
private $updatedAt;
public function __toString()
{
return $this->nom;
}
public function setImageFile(File $image = null)
{
$this->imageFile = $image;
// VERY IMPORTANT:
// It is required that at least one field changes if you are using Doctrine,
// otherwise the event listeners won't be called and the file is lost
if ($image) {
// if 'updatedAt' is not defined in your entity, use another property
$this->updatedAt = new \DateTime('now');
}
}
public function getImageFile()
{
return $this->imageFile;
}
public function setImage($image)
{
$this->image = $image;
}
public function getImage()
{
return $this->image;
}
/**
* Get id
*
* @return int
*/
public function getId()
{
return $this->id;
}
/**
* Set nom
*
* @param string $nom
*
* @return Event
*/
public function setNom($nom)
{
$this->nom = $nom;
return $this;
}
/**
* Get nom
*
* @return string
*/
public function getNom()
{
return $this->nom;
}
/**
* Set date
*
* @param \DateTime $date
*
* @return Event
*/
public function setDate($date)
{
$this->date = $date;
return $this;
}
/**
* Get date
*
* @return \DateTime
*/
public function getDate()
{
return $this->date;
}
/**
* Set heure
*
* @param \DateTime $heure
*
* @return Event
*/
public function setHeure($heure)
{
$this->heure = $heure;
return $this;
}
/**
* Get heure
*
* @return \DateTime
*/
public function getHeure()
{
return $this->heure;
}
/**
* Set lieu
*
* @param string $lieu
*
* @return Event
*/
public function setLieu($lieu)
{
$this->lieu = $lieu;
return $this;
}
/**
* Get lieu
*
* @return string
*/
public function getLieu()
{
return $this->lieu;
}
/**
* Set categorie
*
* @param string $categorie
*
* @return Event
*/
public function setCategorie($categorie)
{
$this->categorie = $categorie;
return $this;
}
/**
* Get categorie
*
* @return string
*/
public function getCategorie()
{
return $this->categorie;
}
/**
* Set prix
*
* @param float $prix
*
* @return Event
*/
public function setPrix($prix)
{
$this->prix = $prix;
return $this;
}
/**
* Get prix
*
* @return float
*/
public function getPrix()
{
return $this->prix;
}
/**
* Set isActive
*
* @param boolean $isActive
*
* @return Event
*/
public function setIsActive($isActive)
{
$this->isActive = $isActive;
return $this;
}
/**
* Get isActive
*
* @return boolean
*/
public function getIsActive()
{
return $this->isActive;
}
/**
* Constructor
*/
public function __construct()
{
$this->commandes = new \Doctrine\Common\Collections\ArrayCollection();
}
/**
* Add commande
*
* @param \AppBundle\Entity\Commande $commande
*
* @return Event
*/
public function addCommande(\AppBundle\Entity\Commande $commande)
{
$this->commandes[] = $commande;
return $this;
}
/**
* Remove commande
*
* @param \AppBundle\Entity\Commande $commande
*/
public function removeCommande(\AppBundle\Entity\Commande $commande)
{
$this->commandes->removeElement($commande);
}
/**
* Get commandes
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getCommandes()
{
return $this->commandes;
}
/**
* Set updatedAt
*
* @param \DateTime $updatedAt
*
* @return Event
*/
public function setUpdatedAt($updatedAt)
{
$this->updatedAt = $updatedAt;
return $this;
}
/**
* Get updatedAt
*
* @return \DateTime
*/
public function getUpdatedAt()
{
return $this->updatedAt;
}
}
我不明白错误可能来自哪里，或者我做错了什么。我按照本网站上的教程进行操作：链接
谢谢您的回答