nested admins

gistfile1.py

from functools import update_wrapper
from django.conf.urls import patterns, url, include
from django.contrib import admin

# Register your models here.
from django.contrib.admin.utils import quote
from django.contrib.admin.views.main import ChangeList
from django.contrib.auth.admin import csrf_protect_m
from django.core.urlresolvers import reverse
from django.http import HttpResponseRedirect
from django.shortcuts import render, redirect
from accounts.models import User, APIKey, APIKeyTemplate, APIKeyTemplateLimit, APIKeyLimit


class APIKeyTemplateLimitInline(admin.StackedInline):
    model = APIKeyTemplateLimit


class APIKeyTemplateAdmin(admin.ModelAdmin):
    model = APIKeyTemplate
    inlines = [APIKeyTemplateLimitInline]
    list_display = ('name',)


class APIKeyLimitInline(admin.StackedInline):
    model = APIKeyLimit
    extra = 0


# noinspection PyMethodOverriding
class APIKeyAdmin(admin.ModelAdmin):
    model = APIKey
    readonly_fields = ('key', 'user',)
    inlines = [APIKeyLimitInline]

    def get_changelist(self, request, **kwargs):
        cl_class = super(APIKeyAdmin, self).get_changelist(request, **kwargs)

        class ChangeList(cl_class):
            def url_for_result(self, result):
                pk = getattr(result, self.pk_attname)
                return reverse('admin:%s_%s_change' % (self.opts.app_label,
                                                       self.opts.model_name),
                               args=(quote(request.parent_pk), quote(pk),),
                               current_app=self.model_admin.admin_site.name)

        return ChangeList

    def updated_context(self, user_id, extra_context):
        if extra_context is not None:
            extra_context.update({"user_id": user_id})
        else:
            extra_context = {"user_id": user_id}
        return extra_context

    def get_queryset(self, request):

        return super(APIKeyAdmin, self).get_queryset(request).filter(user__pk=request.parent_pk)

    def changelist_view(self, request, user_id, extra_context=None):
        request.parent_pk = user_id
        return super(APIKeyAdmin, self).changelist_view(
            request, self.updated_context(user_id, extra_context))

    def add_view(self, request, user_id, form_url='', extra_context=None):
        user = User.objects.get(pk=user_id)
        api_key = self.model.objects.create_for_user(user)
        return HttpResponseRedirect(reverse(
            'admin:accounts_apikey_change',
            args=(api_key.pk,),
            kwargs={"user_id": user_id},
        ))

    def history_view(self, request, object_id, user_id, extra_context=None):
        request.parent_pk = user_id
        return super(APIKeyAdmin, self).history_view(
            request, object_id, self.updated_context(user_id, extra_context))

    def delete_view(self, request, object_id, user_id, extra_context=None):
        request.parent_pk = user_id
        return super(APIKeyAdmin, self).delete_view(
            request, object_id, self.updated_context(user_id, extra_context))

    def change_view(self, request, object_id, user_id, form_url='',
                    extra_context=None):
        request.parent_pk = user_id
        return super(APIKeyAdmin, self).change_view(
            request, object_id, form_url, self.updated_context(user_id, extra_context))


class UserAdmin(admin.ModelAdmin):
    model = User
    list_display = ('email', 'name', 'is_staff', 'is_superuser')

    def get_urls(self):
        urls = super(UserAdmin, self).get_urls()

        extra_urls = patterns(
            '',
            url(
                r'^(?P<user_id>\d+)/keys/',
                include(APIKeyAdmin(APIKey, self.admin_site).get_urls())
            ),
        )
        return extra_urls + urls