Symfony - EntityType select重复相同的选项

use App\Entity\YourEntity;
use Symfony\Bridge\Doctrine\Form\Type\EntityType;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;

class YourFormType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('yourField', EntityType::class, [
                'class' => YourEntity::class,
                'choice_label' => 'name', // 根据实际情况选择显示的字段
            ]);
    }

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

use App\Entity\YourEntity;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;

class YourController extends AbstractController
{
    /**
     * @Route("/your-route", name="your_route")
     */
    public function yourAction(Request $request)
    {
        $entityManager = $this->getDoctrine()->getManager();
        $queryBuilder = $entityManager->createQueryBuilder();

        $queryBuilder->select('e')
            ->from(YourEntity::class, 'e')
            ->distinct(); // 确保查询结果中的实体对象是唯一的

        $entities = $queryBuilder->getQuery()->getResult();

        return $this->render('your_template.html.twig', [
            'entities' => $entities,
        ]);
    }
}