问题 django get() 返回两个值 postgresql

Question

你好，我一直是这个问题，因为我在它为空时将 sqlite 更改为 postgresql 我点击迁移并创建表，当我创建超级用户时它会出错但仍然创建管理员用户，并且当它创建时我无法登录所以它的基本 django 管理员并且不应该有所不同我该如何解决这个问题？是迁移错误还是？

这是我创建超级用户时的回溯

Traceback (most recent call last):
  File "manage.py", line 15, in <module>
    execute_from_command_line(sys.argv)
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/core/management/__init__.py", line 395, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/core/management/base.py", line 330, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/contrib/auth/management/commands/createsuperuser.py", line 79, in execute
    return super().execute(*args, **options)
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/core/management/base.py", line 371, in execute
    output = self.handle(*args, **options)
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/contrib/auth/management/commands/createsuperuser.py", line 189, in handle
    self.UserModel._default_manager.db_manager(database).create_superuser(**user_data)
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/contrib/auth/models.py", line 157, in create_superuser
    return self._create_user(username, email, password, **extra_fields)
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/contrib/auth/models.py", line 140, in _create_user
    user.save(using=self._db)
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/contrib/auth/base_user.py", line 67, in save
    super().save(*args, **kwargs)
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/db/models/base.py", line 753, in save
    self.save_base(using=using, force_insert=force_insert,
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/db/models/base.py", line 801, in save_base
    post_save.send(
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/dispatch/dispatcher.py", line 177, in send
    return [
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/dispatch/dispatcher.py", line 178, in <listcomp>
    (receiver, receiver(signal=self, sender=sender, **named))
  File "/var/www/html/web/users/signals.py", line 11, in create_profile
    Profile.objects.create(user=instance)
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/db/models/manager.py", line 85, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/db/models/query.py", line 447, in create
    obj.save(force_insert=True, using=self.db)
  File "/var/www/html/web/users/models.py", line 25, in save
    img = Image.open(self.image.path)
  File "/var/www/html/web/venv/lib/python3.8/site-packages/django/db/models/fields/files.py", line 57, in path
    return self.storage.path(self.name)
  File "/var/www/html/webst/venv/lib/python3.8/site-packages/django/core/files/storage.py", line 116, in path
    raise NotImplementedError("This backend doesn't support absolute paths.")
NotImplementedError: This backend doesn't support absolute paths.

Answer 1

您可能有两个登录相同的用户。您可以尝试让所有用户登录您用于登录管理面板

python manage.py shell
from users.models import User
User.objects.filter(login=your_login)

你会得到查询集，如果有多个相同登录的对象，只需删除它

Answer 2

看起来它与settings.py有关。请确保设置正常： https://docs.djangoproject.com/en/3.1/ref/settings/#std:setting-HOST

与我们分享 settings.py 以获得更多帮助