如何在django管理中添加对象级权限

from django.db import models
from django.contrib.auth.models import User

class Post(models.Model):
    title = models.CharField(max_length=100)
    content = models.TextField()
    author = models.ForeignKey(User, on_delete=models.CASCADE)

from django.contrib.auth.models import Permission

class ObjectPermission(Permission):
    def has_object_permission(self, user, obj):
        # 在这里添加自定义的对象级权限验证逻辑
        return user == obj.author

from django.contrib import admin

class PostAdmin(admin.ModelAdmin):
    def get_queryset(self, request):
        qs = super().get_queryset(request)
        if request.user.is_superuser:
            return qs
        return qs.filter(author=request.user)

admin.site.register(Post, PostAdmin)

from django.contrib.auth.decorators import permission_required
from django.shortcuts import get_object_or_404, render

@permission_required('app.change_post', (Post, 'id', 'post_id'))
def edit_post(request, post_id):
    post = get_object_or_404(Post, id=post_id)
    # 编辑帖子的逻辑
    return render(request, 'edit_post.html', {'post': post})