Django 如何使用UserProfile模型修复IntegrityError（当用户从管理界面创建时）？

EDIT1：我尝试使用sqlflush重置所有内容，但没有帮助

EDIT2：我可以创建一个用户并将OtherModel指定为NULL，然后稍后编辑该用户以使OtherModel成为实际引用。当我在用户创建期间指定引用时，就会出现问题

因此，在我的应用程序中，它与postgres相连，我试图用一个名为UserProfile的新模型扩展django提供的用户模型。我希望每个用户都与我创建的另一个模型相关联。这是我的代码：

型号.py

.
.
.

class OtherModel(models.Model):
    # model info

class UserProfile(models.Model):
    user = models.OneToOneField(User)    
    othermodel = models.OneToOneField(OtherModel, null=True)

def create_user_profile(sender, instance, created, **kwargs):
    if created:
        profile, created = UserProfile.objects.get_or_create(user=instance)

post_save.connect(create_user_profile, sender=User)

从django管理界面创建用户时，出现以下错误：

IntegrityError at /admin/auth/user/add/
duplicate key value violates unique constraint "planamocal_userprofile_user_id_key"
DETAIL:  Key (user_id)=(23) already exists.

每次我尝试创建一个新用户时，用户id计数都会不断增加，这很奇怪，因为我的实际用户计数保持不变

这是回溯：

Environment:


Request Method: POST
Request URL: http://127.0.0.1:8000/admin/auth/user/add/

Django Version: 1.3.1
Python Version: 2.7.1
Installed Applications:
['django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.sites',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'planamocal',
 'django.contrib.admin']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware')


Traceback:
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  111.                         response = callback(request, *callback_args, **callback_kwargs)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/contrib/admin/options.py" in wrapper
  307.                 return self.admin_site.admin_view(view)(*args, **kwargs)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view
  93.                     response = view_func(request, *args, **kwargs)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  79.         response = view_func(request, *args, **kwargs)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/contrib/admin/sites.py" in inner
  197.             return view(request, *args, **kwargs)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapper
  28.             return bound_func(*args, **kwargs)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view
  93.                     response = view_func(request, *args, **kwargs)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/utils/decorators.py" in bound_func
  24.                 return func(self, *args2, **kwargs2)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/db/transaction.py" in inner
  217.                 res = func(*args, **kwargs)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/contrib/auth/admin.py" in add_view
  103.         return super(UserAdmin, self).add_view(request, form_url, extra_context)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapper
  28.             return bound_func(*args, **kwargs)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view
  93.                     response = view_func(request, *args, **kwargs)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/utils/decorators.py" in bound_func
  24.                 return func(self, *args2, **kwargs2)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/db/transaction.py" in inner
  217.                 res = func(*args, **kwargs)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/contrib/admin/options.py" in add_view
  885.                     self.save_formset(request, form, formset, change=False)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/contrib/admin/options.py" in save_formset
  677.         formset.save()
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/forms/models.py" in save
  482.         return self.save_existing_objects(commit) + self.save_new_objects(commit)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/forms/models.py" in save_new_objects
  613.             self.new_objects.append(self.save_new(form, commit=commit))
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/forms/models.py" in save_new
  717.             obj.save()
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/db/models/base.py" in save
  460.         self.save_base(using=using, force_insert=force_insert, force_update=force_update)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/db/models/base.py" in save_base
  553.                     result = manager._insert(values, return_id=update_pk, using=using)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/db/models/manager.py" in _insert
  195.         return insert_query(self.model, values, **kwargs)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/db/models/query.py" in insert_query
  1436.     return query.get_compiler(using=using).execute_sql(return_id)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/db/models/sql/compiler.py" in execute_sql
  791.         cursor = super(SQLInsertCompiler, self).execute_sql(None)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/db/models/sql/compiler.py" in execute_sql
  735.         cursor.execute(sql, params)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/db/backends/util.py" in execute
  34.             return self.cursor.execute(sql, params)
File "/Users/AndyFang/Desktop/planamo/venv/lib/python2.7/site-packages/django/db/backends/postgresql_psycopg2/base.py" in execute
  44.             return self.cursor.execute(query, args)

Exception Type: IntegrityError at /admin/auth/user/add/
Exception Value: duplicate key value violates unique constraint "planamocal_userprofile_user_id_key"
DETAIL:  Key (user_id)=(23) already exists.

---

如何修复此错误？

出现此问题的原因是，您似乎正在尝试创建一个用户配置文件，并在管理中同时添加另一个模型

由于另一个模型是连接到用户创建的信号，因此，这是不可能的

---

更改工作流程，以便您创建用户、保存用户、创建配置文件、保存配置文件和添加其他模型、保存配置文件（按此顺序）

是否有办法在管理界面中创建具有填充配置文件的用户？