Django数据迁移顺序

我正在使用sites应用程序( django.contrib.sites )在我的申请中。我创建了一个数据迁移,在创建数据库时设置当前站点的值,但是我的数据迁移是在安装站点应用程序之前执行的。我如何强制执行数据迁移 sites

该项目旨在成为其他项目的种子,我经常删除数据库并重新开始,因此初始的makemigrations/migrate命令必须开箱即用。

我的迁移文件位于主应用程序文件夹中:

project folder
..+app
....+migrations
......-0001_initial.py

以下是迁移文件的内容:

from __future__ import unicode_literals

from django.db import migrations

def set_development_site(apps, schema_editor):
    Site = apps.get_model('sites', 'Site')
    current= Site.objects.get_current()
    current.domain = "localhost:8000"
    current.name = "Django-Angular-Webpack-Starter"
    current.save()

class Migration(migrations.Migration):

    dependencies = [
    ]

    operations = [
        migrations.RunPython(set_development_site),
    ]

以及 python manage.py migrate 命令:

Operations to perform:
  Apply all migrations: admin, app, auth, authentication, authtoken, contenttypes, sessions, sites
Running migrations:
  Applying contenttypes.0001_initial... OK
  Applying contenttypes.0002_remove_content_type_name... OK
  Applying auth.0001_initial... OK
  Applying authentication.0001_initial... OK
  Applying admin.0001_initial... OK
  Applying admin.0002_logentry_remove_auto_add... OK
  Applying app.0001_initial...Traceback (most recent call last):
  File "/home/user/devel/django-angular-webpack-starter/venv/lib/python3.5/site-packages/django/apps/registry.py", line 149, in get_app_config
    return self.app_configs[app_label]
KeyError: 'sites'