Django如何从自引用模型生成ul li层次结构

from django.db import models

class Category(models.Model):
    name = models.CharField(max_length=100)
    parent = models.ForeignKey('self', null=True, blank=True, on_delete=models.CASCADE, related_name='children')

    def __str__(self):
        return self.name

    def get_hierarchy(self):
        hierarchy = [self.name]
        category = self.parent

        while category:
            hierarchy.insert(0, category.name)
            category = category.parent

        return hierarchy

from django.shortcuts import render
from .models import Category

def category_hierarchy(request):
    categories = Category.objects.all()
    context = {'categories': categories}
    return render(request, 'category_hierarchy.html', context)

<ul>
{% for category in categories %}
    <li>{{ category.name }}</li>
    {% if category.children.all %}
        <ul>
        {% for child in category.children.all %}
            <li>{{ child.name }}</li>
            <!-- 可以继续嵌套更深层次的子分类 -->
        {% endfor %}
        </ul>
    {% endif %}
{% endfor %}
</ul>