Hi, I'm not sure what's causing your error, but it appears that using User.add_to_class is not the recommended approach for extending the user model.
James Bennet explains it very well here - http://groups.google.com/group/django-users/browse_thread/thread/a35d94ce1a7893b0/9e45e7bfc58cfa05?lnk=gst&q=add_to_class#9e45e7bfc58cfa05 Basically, create a UserProfile class and associate it to your user via the User.profile property. There are many resources online, just search for 'django user.profile' I use and prefer this approach http://www.codekoala.com/blog/2009/quick-django-tip-user-profiles/ Good luck, Sam On Nov 1, 3:26 am, ewoudenberg <eric.woudenb...@gmail.com> wrote: > Hi, > > I'm adding row level permissions to the admin using this > guideline:http://www.djangosnippets.org/snippets/1054/. Everything works fine > when I add a simple ForeignKey to the User object and use that to > identify records 'owned' by the user. e.g.: > > from django.contrib.auth.models import User > User.add_to_class('venue', models.ForeignKey(Venue)) > > However, when I add a ManyToManyField, so that a user can effectively > be many owners, e.g.: > > from django.contrib.auth.models import User > User.add_to_class('venues', models.ManyToManyField(Venue)) > > I get this Django crash: > > Exception Value: > Cannot resolve keyword 'user' into field. Choices are: <shows all > fields of the Venue object> > > Exception Location: C:\Python25\lib\site-packages\django-trunk\django > \db\models\sql\query.py in setup_joins, line 1737 > > Here is the offending line: > > print request.user.venues.all() > > However, this same operation works fine from the command line: > > >>> from django.db import models > >>> from django.contrib.auth.models import User > >>> from dharmaseed.talks.models import Venue > >>> User.add_to_class('venues', models.ManyToManyField(Venue)) > >>> dennis = User.objects.get(id=7) > >>> dennis.venues.count() > 2 > >>> dennis.venues.all() > > [<Venue: Insight Meditation Society - Forest Refuge>, <Venue: Insight > Meditation Society - Retreat Center>] > > Is this a Django bug? What could be different about request.user > during a web fetch and the user instance I get from the command line? > Should I just go back to ForeignKey ownership instead of ManyToMany? > > Any help or hints would be greatly appreciated! > > Thank you, > Eric Woudenberg > > Trace: > > Environment: > > Request Method: GET > Request URL:http://127.0.0.1:8000/admin/talks/talk/ > Django Version: 1.1 rc 1 > Python Version: 2.5.2 > Installed Applications: > ['django.contrib.admin', > 'django.contrib.auth', > 'django.contrib.contenttypes', > 'django.contrib.sessions', > 'django.contrib.sites', > 'django.contrib.flatpages', > 'django.contrib.redirects', > 'dharmaseed.talks', > 'dharmaseed.quicklinks', > 'zilbo.accounts'] > Installed Middleware: > ('django.middleware.common.CommonMiddleware', > 'django.contrib.sessions.middleware.SessionMiddleware', > 'django.contrib.auth.middleware.AuthenticationMiddleware', > 'django.middleware.doc.XViewMiddleware', > 'django.contrib.flatpages.middleware.FlatpageFallbackMiddleware', > 'django.contrib.redirects.middleware.RedirectFallbackMiddleware') > > Traceback: > File "C:\Python25\lib\site-packages\django-trunk\django\core\handlers > \base.py" in get_response > 92. response = callback(request, *callback_args, > **callback_kwargs) > File "C:\Python25\lib\site-packages\django-trunk\django\contrib\admin > \sites.py" in root > 490. return self.model_page(request, *url.split('/', > 2)) > File "C:\Python25\lib\site-packages\django-trunk\django\views > \decorators\cache.py" in _wrapped_view_func > 44. response = view_func(request, *args, **kwargs) > File "C:\Python25\lib\site-packages\django-trunk\django\contrib\admin > \sites.py" in model_page > 509. return admin_obj(request, rest_of_url) > File "C:\Python25\lib\site-packages\django-trunk\django\contrib\admin > \options.py" in __call__ > 1090. return self.changelist_view(request) > File "C:\Python25\lib\site-packages\django-trunk\django\contrib\admin > \options.py" in changelist_view > 897. self.date_hierarchy, self.search_fields, > self.list_select_related, self.list_per_page, self.list_editable, > self) > File "C:\Python25\lib\site-packages\django-trunk\django\contrib\admin > \views\main.py" in __init__ > 39. self.root_query_set = model_admin.queryset(request) > File "..\dharmaseed\talks\admin.py" in queryset > 12. return self.filter_user_queryset(queryset, request) > File "..\dharmaseed\talks\admin.py" in filter_user_queryset > 110. print request.user.venues.all() > File "C:\Python25\lib\site-packages\django-trunk\django\db\models > \manager.py" in all > 105. return self.get_query_set() > File "C:\Python25\lib\site-packages\django-trunk\django\db\models > \fields\related.py" in get_query_set > 424. return superclass.get_query_set > (self)._next_is_sticky().filter(**(self.core_filters)) > File "C:\Python25\lib\site-packages\django-trunk\django\db\models > \query.py" in filter > 498. return self._filter_or_exclude(False, *args, **kwargs) > File "C:\Python25\lib\site-packages\django-trunk\django\db\models > \query.py" in _filter_or_exclude > 516. clone.query.add_q(Q(*args, **kwargs)) > File "C:\Python25\lib\site-packages\django-trunk\django\db\models\sql > \query.py" in add_q > 1675. can_reuse=used_aliases) > File "C:\Python25\lib\site-packages\django-trunk\django\db\models\sql > \query.py" in add_filter > 1569. negate=negate, > process_extras=process_extras) > File "C:\Python25\lib\site-packages\django-trunk\django\db\models\sql > \query.py" in setup_joins > 1737. "Choices are: %s" % (name, ", > ".join(names))) > > Exception Type: FieldError at /admin/talks/talk/ > Exception Value: Cannot resolve keyword 'user' into field. Choices > are: audio_header, contact_email, description, id, location, name, > retreat, rssfeed_author, rssfeed_description, rssfeed_image_url, > rssfeed_itunes_image_url, rssfeed_keywords, rssfeed_link, > rssfeed_title, talk, venue_code, website --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
