如何生成扩展自定义记录类的Doctrine模型/类

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use App\Entity\BaseEntity;

/**
 * @ORM\Entity(repositoryClass=CustomRepository::class)
 */
class CustomEntity extends BaseEntity
{
    /**
     * @ORM\Column(type="string", length=255)
     */
    private $customField;

    public function getCustomField(): ?string
    {
        return $this->customField;
    }

    public function setCustomField(string $customField): self
    {
        $this->customField = $customField;

        return $this;
    }
}

namespace App\Repository;

use App\Entity\CustomEntity;
use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
use Doctrine\Persistence\ManagerRegistry;

class CustomRepository extends ServiceEntityRepository
{
    public function __construct(ManagerRegistry $registry)
    {
        parent::__construct($registry, CustomEntity::class);
    }

    public function findByCustomField(string $customField)
    {
        return $this->createQueryBuilder('c')
            ->andWhere('c.customField = :customField')
            ->setParameter('customField', $customField)
            ->getQuery()
            ->getResult();
    }
}

$customEntity = new CustomEntity();
$customEntity->setCustomField('custom value');

$entityManager->persist($customEntity);
$entityManager->flush();

$customRepository = $entityManager->getRepository(CustomEntity::class);
$customEntities = $customRepository->findByCustomField('custom value');