Symfony Form中基于当前用户过滤EntityType字段的正确姿势

<?php

namespace AppForm;

use AppEntityCourrier;
use AppEntityDestinataire;
use DoctrineORMEntityRepository;
use SymfonyBridgeDoctrineFormTypeEntityType;
use SymfonyComponentFormAbstractType;
use SymfonyComponentFormFormBuilderInterface;
use SymfonyComponentOptionsResolverOptionsResolver;
use SymfonyComponentSecurityCoreSecurity;

class CourrierType extends AbstractType
{
  private $security;

  public function __construct(Security $security)
  {
    $this->security = $security;
  }

  public function buildForm(FormBuilderInterface $builder, array $options): void
  {
    $builder
        ->add('objet')
        ->add('destinataire', EntityType::class, [
            'class' => Destinataire::class,
            'placeholder' => '--Choisissez un destinataire--',
            'query_builder' => function (EntityRepository $er) 
            {
                // 获取当前登录用户
                $user = $this->security->getUser();

                // 确保用户已登录，否则返回空查询或抛出异常
                if (!$user) {
                    return $er->createQueryBuilder('qb')->where('1 = 0'); // 返回一个永不匹配的查询
                }

                return $er->createQueryBuilder('qb')
                    // 使用DQL表达式和命名参数进行过滤
                    ->where('qb.utilisateur = :user')
                    // 将当前用户实体绑定到命名参数:user
                    ->setParameter('user', $user)
                    ->addOrderBy('qb.denomination', 'ASC')
                    ->addOrderBy('qb.prenom', 'ASC')
                    ->addOrderBy('qb.nom', 'ASC');
            },
        ])           
        ->add('dateEnvoi')
        ->add('dateRelance')
        // ... 其他字段
        ->add('statut')
        ->add('offreReference')
        ->add('nosReferences')
        ->add('vosReferences')
        ->add('annonceCopie')
        ->add('paragraphe1')
        ->add('paragraphe2')
        ->add('paragraphe3')
        ->add('paragraphe4')  
    ;
  }

  public function configureOptions(OptionsResolver $resolver): void
  {
    $resolver->setDefaults([
        'data_class' => Courrier::class,
    ]);
  }
}