Duplicate entry 'ErwinFeser' for key 'username'

[erwinfeser]

If an user login using different services (Google, Twitter, etc) and the user has the same username for at least two, Django raises an IntegrityError exception because it try to create more than one django account with the same username.

I pasted a debug page example below:

Environment:

Request Method: GET
Request URL: http://www.erwinfeser.com.ar/...
Django Version: 1.2.3
Python Version: 2.6.5
Installed Applications:
['tinymce',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.admin',
'feserwin.erwinsite',
'feserwin.teg7',
'social_auth']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.middleware.csrf.CsrfResponseMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware')

Traceback:
File "/usr/local/lib/python2.6/dist-packages/django/core/handlers/base.py" in get_response

1.                 response = callback(request, _callback_args, *_callback_kwargs)
   

   File "/usr/local/lib/python2.6/dist-packages/social_auth/views.py" in complete

2. user = backend.auth_complete()
   

   File "/usr/local/lib/python2.6/dist-packages/social_auth/auth.py" in auth_complete

3.         return authenticate(_args, *_kwargs)
   

   File "/usr/local/lib/python2.6/dist-packages/django/contrib/auth/init.py" in authenticate

4.         user = backend.authenticate(**credentials)
   

   File "/usr/local/lib/python2.6/dist-packages/social_auth/backends.py" in authenticate

5.     self.update_user_details(user, response, details, new_user=new_user)
   

   File "/usr/local/lib/python2.6/dist-packages/social_auth/backends.py" in update_user_details

6.         user.save()
   

   File "/usr/local/lib/python2.6/dist-packages/django/db/models/base.py" in save

7.     self.save_base(using=using, force_insert=force_insert, force_update=force_update)
   

   File "/usr/local/lib/python2.6/dist-packages/django/db/models/base.py" in save_base

8.                     rows = manager.using(using).filter(pk=pk_val)._update(values)
   

   File "/usr/local/lib/python2.6/dist-packages/django/db/models/query.py" in _update

9.     return query.get_compiler(self.db).execute_sql(None)
   

   File "/usr/local/lib/python2.6/dist-packages/django/db/models/sql/compiler.py" in execute_sql

10.     cursor = super(SQLUpdateCompiler, self).execute_sql(result_type)
    

    File "/usr/local/lib/python2.6/dist-packages/django/db/models/sql/compiler.py" in execute_sql

11.     cursor.execute(sql, params)
    

    File "/usr/local/lib/python2.6/dist-packages/django/db/backends/util.py" in execute

12.         return self.cursor.execute(sql, params)
    

    File "/usr/local/lib/python2.6/dist-packages/django/db/backends/mysql/base.py" in execute

13.         return self.cursor.execute(query, args)
    

    File "/usr/lib/pymodules/python2.6/MySQLdb/cursors.py" in execute

14.         self.errorhandler(self, exc, value)
    

    File "/usr/lib/pymodules/python2.6/MySQLdb/connections.py" in defaulterrorhandler

15. raise errorclass, errorvalue
    

Exception Type: IntegrityError at /site/social-auth/complete/google/
Exception Value: (1062, "Duplicate entry 'ErwinFeser' for key 'username'")

[omab]

Remove username update, username is already generated and loaded in user instance. Closed by f42fc57