在Django中创建无限的论坛层次结构

pip install django-mptt

INSTALLED_APPS = [
    # ...
    'mptt',
    # ...
]

from django.db import models
from mptt.models import MPTTModel, TreeForeignKey

class Forum(MPTTModel):
    name = models.CharField(max_length=50)
    parent = TreeForeignKey('self', on_delete=models.CASCADE, null=True, blank=True, related_name='children')

    class MPTTMeta:
        order_insertion_by = ['name']

# 创建根论坛
root_forum = Forum.objects.create(name='Root Forum')

# 创建一个子论坛
child_forum = Forum.objects.create(name='Child Forum', parent=root_forum)

# 创建一个子子论坛
grandchild_forum = Forum.objects.create(name='Grandchild Forum', parent=child_forum)

# 获取子论坛的祖先
ancestors = child_forum.get_ancestors()

# 获取根论坛的后代
descendants = root_forum.get_descendants()