// エンティティ
namespace App\Entity;

class Master
{
    private string $name = '';
    private string $description = '';

    public function getName(): string
    {
        return $this->name;
    }

    public function setName(string $name): self
    {
        $this->name = $name;
        return $this;
    }

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

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

// フォーム
namespace App\Form\Type;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\FormBuilderInterface;

class MasterEditType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options): void
    {
        $builder
            ->add('name', TextType::class)
            ->add('desctiption', TextType::class)
        ;
    }
}

// コントローラー
namespace App\Controller;

use App\Entity\Master;
use App\Form\Type\MasterEditType;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;

class MasterEditController extends AbstractController
    public function edit(Request $request) : Response
    {
        $master = new Master();
        // ...
        
        $form = $this->createForm(MasterEditType::class, $master);

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

<!-- 画面テンプレート（Symfony Form使用） -->
<div>
    <div>
        <label>名称</label>
        {{ form_widget(form.name) }}
    </div>
    <div>
        <label>説明</label>
        {{ form_widget(form.description) }}
    </div>
</div>

// 変更後のコントローラー（Symfony Formを使わない）
namespace App\Controller;

use App\Entity\Master;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;

class MasterEditController extends AbstractController
    public function edit(Request $request) : Response
    {
        $master = new Master();
        // ...

        return $this->render('master/edit.html.twig', [
            'master' => [
                'name' => $master->getName(),
                'description' => $master->getDescription(),
            ],
        ]);
    }
}

// 変更後の画面テンプレート（Vue.js使用）
<div>
    <div>
        <label>名称</label>
        <input type="text" v-model="mst.name">
    </div>
    <div>
        <label>説明</label>
        <input type="text" v-model="mst.description">
    </div>
</div>

<!-- Vue.jsのスクリプト部分 -->
<script>
export default {
  props: {
    master: {},
  },
  setup(props) {
    const mst = ref(props.master);
    return {
      mst,
    };
  },
}
</script>