这是一个有趣的问题,所以我创建了一个示例应用程序来解决这个问题。
# models.py
from django.db import models
class Campaign(models.Model):
name = models.CharField(max_length=20)
def __unicode__(self):
return unicode(self.name)
class Category(models.Model):
campaign = models.ForeignKey(Campaign)
name = models.CharField(max_length=20)
def __unicode__(self):
return unicode(self.name)
class Account(models.Model):
category = models.ForeignKey(Category)
name = models.CharField(max_length=20)
def __unicode__(self):
return unicode(self.name)
# admin.py
from django.contrib import admin
from models import Campaign, Category, Account
class CampaignAdmin(admin.ModelAdmin):
list_display = ('name', 'related_accounts', )
def related_accounts(self, obj):
from django.core import urlresolvers
url = urlresolvers.reverse("admin:<yourapp>_account_changelist")
lookup = u"category__campaign__exact"
text = u"View Accounts"
return u"<a href='%s?%s=%d'>%s</a>" % (url, lookup, obj.pk, text)
related_accounts.allow_tags = True
admin.site.register(Campaign, CampaignAdmin)
admin.site.register(Category)
class AccountAdmin(admin.ModelAdmin):
list_display = ('category', 'name')
list_filter = ('category__campaign',)
admin.site.register(Account, AccountAdmin)
您需要替换为 Account ModelAdmin 所在的应用程序的名称。
注意:从 Django 1.2.4、Django 1.1.3 和 Django 1.3 beta 1 开始,AccountAdmin 上的 list_filter 是必需的,它们通过管理员中的 URL 参数引入了防止任意过滤的保护。