如何在Symfony中检索twig模板内的EntityType字段的实体实例

use App\Entity\Category;
use App\Form\CategoryType;
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)
    {
        $category = new Category();
        $form = $this->createForm(CategoryType::class, $category);

        // 处理表单提交
        $form->handleRequest($request);
        if ($form->isSubmitted() && $form->isValid()) {
            // 进行相关操作
        }

        // 获取与表单相关联的实体实例
        $categoryEntity = $form->get('category')->getData();

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

{{ categoryEntity.name }}