如何在Django中显示特定类别下的子类别？

from django.shortcuts import render
from .models import Category

def category_detail(request, category_id):
    category = Category.objects.get(id=category_id)
    # 其他处理逻辑
    return render(request, 'category_detail.html', {'category': category})

<!-- category_detail.html -->
<h1>{{ category.name }}</h1>
<ul>
    {% for subcategory in category.subcategories.all %}
        <li>{{ subcategory.name }}</li>
    {% empty %}
        <li>No subcategories found.</li>
    {% endfor %}
</ul>