用户在我在EasyAdmin3和symfony5上的成就上的问题

Question

这个问题出现在Symfony 5上，我用EasyAdmin v3包创建了我的站点的管理端。当我试图添加一个实现时，我的问题就会发生，它会给我以下错误消息。

https://i.stack.imgur.com/RXpLr.png

它说，我的用户不能为空，但关注的是，我试图添加一个实现与管理帐户，所以我希望他们考虑到，我已登录为管理员，并将自己的实现从这个帐户。下面是我的代码，我的实现实体。

<?php

namespace App\Entity;

use App\Repository\RealisationRepository;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\HttpFoundation\File\File;
use Vich\UploaderBundle\Mapping\Annotation as Vich;
/**
 * @ORM\Entity(repositoryClass=RealisationRepository::class)
 *  @Vich\Uploadable
 */
class Realisation
{
    /**
     * @ORM\Id
     * @ORM\GeneratedValue
     * @ORM\Column(type="integer")
     */
    private $id;

    /**
     * @ORM\Column(type="string", length=255)
     */
    private $nom;

    /**
     * @ORM\Column(type="datetime")
     */
    private $createdAt;

    /**
     * @ORM\Column(type="datetime", nullable=true)
     */
    private $dateRealisation;

    /**
     * @ORM\Column(type="text")
     */
    private $description;

    /**
     * @ORM\Column(type="boolean")
     */
    private $portfolio;

    /**
     * @ORM\Column(type="string", length=255)
     */
    private $slug;

    /**
     * @ORM\Column(type="string", length=255)
     */
    private $file;
    /**
     * @var File
     * @Vich\UploadableField(mapping="Realisation",fileNameProperty="file")
     */
    private $imageFile;

    /**
     * @ORM\ManyToOne(targetEntity=User::class, inversedBy="realisations")
     * @ORM\JoinColumn(nullable=false)
     */
    private $user;

    /**
     * @ORM\ManyToMany(targetEntity=Categorie::class, inversedBy="realisations")
     */
    private $categorie;

    public function __construct()
    {
        $this->categorie = new ArrayCollection();
    }

    public function getId(): ?int
    {
        return $this->id;
    }

    public function getNom(): ?string
    {
        return $this->nom;
    }

    public function setNom(string $nom): self
    {
        $this->nom = $nom;

        return $this;
    }

    public function getCreatedAt(): ?\DateTimeInterface
    {
        return $this->createdAt;
    }

    public function setCreatedAt(\DateTimeInterface $createdAt): self
    {
        $this->createdAt = $createdAt;

        return $this;
    }

    public function getDateRealisation(): ?\DateTimeInterface
    {
        return $this->dateRealisation;
    }

    public function setDateRealisation(?\DateTimeInterface $dateRealisation): self
    {
        $this->dateRealisation = $dateRealisation;

        return $this;
    }

    public function getDescription(): ?string
    {
        return $this->description;
    }

    public function setDescription(string $description): self
    {
        $this->description = $description;

        return $this;
    }

    public function getPortfolio(): ?bool
    {
        return $this->portfolio;
    }

    public function setPortfolio(bool $portfolio): self
    {
        $this->portfolio = $portfolio;

        return $this;
    }

    public function getSlug(): ?string
    {
        return $this->slug;
    }

    public function setSlug(string $slug): self
    {
        $this->slug = $slug;

        return $this;
    }

    public function getFile(): ?string
    {
        return $this->file;
    }

    public function setFile(string $file): self
    {
        $this->file = $file;

        return $this;
    }

    public function getUser(): ?User
    {
        return $this->user;
    }

    public function setUser(?User $user): self
    {
        $this->user = $user;

        return $this;
    }

    /**
     * @return Collection|Categorie[]
     */
    public function getCategorie(): Collection
    {
        return $this->categorie;
    }

    public function addCategorie(Categorie $categorie): self
    {
        if (!$this->categorie->contains($categorie)) {
            $this->categorie[] = $categorie;
        }

        return $this;
    }

    public function removeCategorie(Categorie $categorie): self
    {
        $this->categorie->removeElement($categorie);

        return $this;
    }

    /**
     * @return File
     */
    public function getImageFile(): ?File
    {
        return $this->imageFile;
    }

    /**
     * @param File $imageFile
     */
    public function setImageFile(?File $imageFile = null)
    {
        $this->imageFile = $imageFile;
        if(null !== $imageFile){
            $this->dateRealisation = new \DateTime();
        }
    }
}

我的realisationCrudController

<?php

namespace App\Controller\Admin;

use App\Entity\Realisation;
use EasyCorp\Bundle\EasyAdminBundle\Controller\AbstractCrudController;
use EasyCorp\Bundle\EasyAdminBundle\Field\AssociationField;
use EasyCorp\Bundle\EasyAdminBundle\Field\BooleanField;
use EasyCorp\Bundle\EasyAdminBundle\Field\DateTimeField;
use EasyCorp\Bundle\EasyAdminBundle\Field\ImageField;
use EasyCorp\Bundle\EasyAdminBundle\Field\IntegerField;
use EasyCorp\Bundle\EasyAdminBundle\Field\TextField;
use EasyCorp\Bundle\EasyAdminBundle\Field\TextEditorField;
use EasyCorp\Bundle\EasyAdminBundle\Field\IdField;
use EasyCorp\Bundle\EasyAdminBundle\Field\TextareaField;
use Symfony\Component\Form\Extension\Core\Type\DateTimeType;
use Symfony\Component\Validator\Constraints\DateTime;
use Vich\UploaderBundle\Form\Type\VichFileType;

class RealisationCrudController extends AbstractCrudController
{
    public static function getEntityFqcn(): string
    {
        return Realisation::class;

    }

    public function configureFields(string $pageName): iterable
    {

        return [
            IntegerField::new('id','ID')->onlyOnIndex(),
            TextField::new('nom'),
            TextEditorField::new('description'),
            DateTimeField::new('createdAt'),
            DateTimeField::new('dateRealisation'),
            TextField::new('slug'),
           BooleanField::new('portfolio'),
            TextareaField ::new('imageFile')
                ->setFormType(VichFileType::class)
                ->setLabel('Image'),


        ];
    }
}

Answer 1

是否希望用户始终是登录创建Realisation实体的用户？

实现这一目标的一个简单方法是使用事件自动将用户设置为登录用户。

一个例子是使用EventSubscriber：

class DoctrineSubscriber implements EventSubscriber

    private $tokenStorage;

    public function __construct(
        TokenStorageInterface $tokenStorage
    ) {
        $this->tokenStorage = $tokenStorage;
    }

    public function getSubscribedEvents(): array
    {
        return [
            Events::prePersist => 'prePersist',
        ];
    }

    public function prePersist(OnFlushEventArgs $args)
    {
       $entity = $args->getObject();

        if ($entity instanceof Realisation) {
            $user = $this->tokenStorage->getToken()->getUser();
            if($user){
                $entity->setUser($user);
            }else{
                //throw an exception, no user logged in
            }
            
        }
    }

}

不要忘记在services.yaml中定义事件订阅服务器

  #services.yaml
  App\EventSubscriber\DoctrineSubscriber:
    tags:
      - { name: doctrine.event_subscriber }

另一种方法是从您的createEntity AbstractCrudController中重写该方法：

public function createEntity(string $entityFqcn)
{
    $realisation = new Realisation();
    
    $realisation->setUser($this->getUser());

    return $realisation;
}