django - 如何在 django 迁移期间向用户/组添加权限？

Question

我想执行以下迁移:

# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.contrib.auth.models import Permission
from django.db import migrations
from django.conf import settings
from django.contrib.auth.models import Group, User


def add_api_group(apps, schema_editor):

    Group.objects.create(name=settings.API_USER_GROUP)
    # get_or_create returns a tuple, not a Group
    group = Group.objects.get(name=settings.API_USER_GROUP)
    permissions = Permission.objects.filter(codename__in = [
        'add_topic',
    ])
    group.permissions.add(*permissions)


def add_api_user(apps, schema_editor):

    user = User.objects.create_user(username=settings.API_USER, password=settings.API_USER_PASSWORD)
    group = Group.objects.get(name=settings.API_USER_GROUP)
    user.groups.add(group)

class Migration(migrations.Migration):

    dependencies = [
        ('nd_content', '0001_initial'),
    ]

    operations = [
        migrations.RunPython(add_api_group),
        migrations.RunPython(add_api_user)
    ]

在迁移的最后一行，我发出错误停止执行并查看数据库状态。问题是表 auth_permission仍然没有另一个模块的模型的权限，尽管这个另一个模块被注册为这个迁移的依赖。

我可以确认似乎只有在执行所有迁移后才添加缺少的权限。

Answer 1

AttributeError: 'StateApps' object has no attribute 'label' in Django 1.10

有一个解决方案:

for app_config in apps.get_app_configs():
    app_config.models_module = True
    create_permissions(app_config, verbosity=0)
    app_config.models_module = None