Django - 如何从模型实例中获取管理员 URL

I'm trying to send an email to a user when a new model instance is saved and I want the email to include a link to the admin page for that model instance. Is there a way to get the correct URL? I figure Django must have that information stored somewhere.

解决方案

这个 Django 片段 应该做:

from django.urls import reverse
from django.contrib.contenttypes.models import ContentType
from django.db import models

class MyModel(models.Model):

    def get_admin_url(self):
        content_type = ContentType.objects.get_for_model(self.__class__)
        return reverse("admin:%s_%s_change" % (content_type.app_label, content_type.model), args=(self.id,))

self 引用父模型类，即self.id 引用对象的实例id.您也可以将其设置为 property通过将 @property 装饰器粘贴在方法签名之上来建模.