Automatically generating admin URLs for your objects

models.py

from django.contrib.contenttypes.models import ContentType
from django.core.urlresolvers import reverse
from django.db import models

class AdminURLMixin(object):
    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,))

    @models.permalink
    def alternative_admin_url(self):
        content_type = ContentType \
            .objects \
            .get_for_model(self.__class__)
        return ('admin:%s_%s_change' % (
            content_type.app_label,
            content_type.model), [str(self.id)])

Genius!! How many times I've bulit in a get_admin_url method... Why provide @permalink and reverse separately?