您正在寻找的是 自定义管理员 FilterSpecs。坏消息是，对这些的支持可能不会很快发布（您可以跟踪讨论here）。
但是，以肮脏的 hack 为代价，您可以解决此限制。在深入研究代码之前如何构建FilterSpecs 的一些亮点：
- 在构建
FilterSpec 列表以显示在页面上时，Django 使用您在list_filter 中提供的字段列表
- 这些字段必须是模型上的真实字段，而不是反向关系，也不是自定义属性。
- Django 维护着一个
FilterSpec 类的列表，每个类都与一个test 函数相关联。
- 对于
list_filter 中的每个字段，Django 将使用test 函数为该字段返回True 的第一个FilterSpec 类。
好的，现在考虑到这一点，看看下面的代码。改编自a django snippet。代码的组织由您自行决定，请记住这应该由admin 应用程序导入。
from myapp.models import UserProfile, Country
from django.contrib.auth.models import User
from django.contrib.auth.admin import UserAdmin
from django.contrib.admin.filterspecs import FilterSpec, ChoicesFilterSpec
from django.utils.encoding import smart_unicode
from django.utils.translation import ugettext_lazy as _
class ProfileCountryFilterSpec(ChoicesFilterSpec):
def __init__(self, f, request, params, model, model_admin):
ChoicesFilterSpec.__init__(self, f, request, params, model, model_admin)
# The lookup string that will be added to the queryset
# by this filter
self.lookup_kwarg = 'userprofile__country__name'
# get the current filter value from GET (we will use it to know
# which filter item is selected)
self.lookup_val = request.GET.get(self.lookup_kwarg)
# Prepare the list of unique, country name, ordered alphabetically
country_qs = Country.objects.distinct().order_by('name')
self.lookup_choices = country_qs.values_list('name', flat=True)
def choices(self, cl):
# Generator that returns all the possible item in the filter
# including an 'All' item.
yield { 'selected': self.lookup_val is None,
'query_string': cl.get_query_string({}, [self.lookup_kwarg]),
'display': _('All') }
for val in self.lookup_choices:
yield { 'selected' : smart_unicode(val) == self.lookup_val,
'query_string': cl.get_query_string({self.lookup_kwarg: val}),
'display': val }
def title(self):
# return the title displayed above your filter
return _('user\'s country')
# Here, we insert the new FilterSpec at the first position, to be sure
# it gets picked up before any other
FilterSpec.filter_specs.insert(0,
# If the field has a `profilecountry_filter` attribute set to True
# the this FilterSpec will be used
(lambda f: getattr(f, 'profilecountry_filter', False), ProfileCountryFilterSpec)
)
# Now, how to use this filter in UserAdmin,
# We have to use one of the field of User model and
# add a profilecountry_filter attribute to it.
# This field will then activate the country filter if we
# place it in `list_filter`, but we won't be able to use
# it in its own filter anymore.
User._meta.get_field('email').profilecountry_filter = True
class MyUserAdmin(UserAdmin):
list_filter = ('email',) + UserAdmin.list_filter
# register the new UserAdmin
from django.contrib.admin import site
site.unregister(User)
site.register(User, MyUserAdmin)
它显然不是灵丹妙药，但它可以胜任，等待更好的解决方案出现。（例如，将子类化 ChangeList 并覆盖 get_filters）。