Question

我只是尝试将我的django（1.9和python3.4）应用程序从Sqlite3迁移到Postgresql。迁移./manage.py makemigrations "app"和./manage.py migrate然后使用loaddata加载所有用户后，一切似乎都找不到。但是，当我尝试使用SessionAuthentication对用户进行身份验证时，收到以下错误：

django.db.utils.IntegrityError: insert or update on table "server_gcssession" violates foreign key constraint "server_gcsses_session_id_6afc9a27_fk_django_session_session_key" DETAIL: Key (session_id)=(b2j6ip8ac29xcvbac7ul3q1wha6mnri0) is not present in table "django_session".

在解析异常之后，似乎当具有SessionAuthentication的用户尝试通过authenticate(username,password)和login(request,usermodel)进行身份验证时，Session对象实际上永远不会存储在表django_sessions中。当我尝试将用户的session_id用作以下模型的键时，抛出了Integrity异常：

class GCSSession(models.Model):
   user = models.ForeignKey(settings.AUTH_USER_MODEL)
   session =models.ForeignKey(Session)

使用此查询：

GCSSession.objects.get_or_create(
    user=user,
    session_id = request.session.session_key
)

用户登录时用Django信号触发的

我已经在线查看了，我发现这个问题最接近的是question。但是，我还不确定该做什么，有什么想法吗？是否有一个我错过迁移的步骤？

更新

这是使用sqlite3运行上述迁移命令的输出：

    Migrations for 'server':
  0001_initial.py:
    - Create model ImagingUser
    - Create model GCSSession
    - Create model Picture
    - Create model Target
Operations to perform:
  Apply all migrations: server, auth, contenttypes, admin, sessions
Running migrations:
  Rendering model states... DONE
  Applying sessions.0001_initial... OK
  Applying contenttypes.0001_initial... OK
  Applying contenttypes.0002_remove_content_type_name... OK
  Applying auth.0001_initial... OK
  Applying auth.0002_alter_permission_name_max_length... OK
  Applying auth.0003_alter_user_email_max_length... OK
  Applying auth.0004_alter_user_username_opts... OK
  Applying auth.0005_alter_user_last_login_null... OK
  Applying auth.0006_require_contenttypes_0002... OK
  Applying auth.0007_alter_validators_add_error_messages... OK
  Applying server.0001_initial... OK
  Applying admin.0001_initial... OK
  Applying admin.0002_logentry_remove_auto_add... OK

这是使用postgresql运行相同命令的输出：

   Migrations for 'server':
  0001_initial.py:
    - Create model ImagingUser
    - Create model GCSSession
    - Create model Picture
    - Create model Target
Operations to perform:
  Apply all migrations: sessions, auth, admin, contenttypes, server
Running migrations:
  No migrations to apply.

Django从sqlite转移到postgresql会话问题

0 个答案: