This is the newforms-admin equivalent of #3002. See http://code.djangoproject.com/ticket/3002#comment:3
Find attached patch fixing this (identical modulo lines offsets to the one attached to #3002).
This bug can be reproduced by this minimal app:
# models.py
import datetime
from django.db import models
from django.contrib import admin
from admin import PollAdmin, ChoiceAdmin
class Poll(models.Model):
question = models.CharField(max_length=200)
def __unicode__(self):
return self.question
class Choice(models.Model):
poll = models.ForeignKey(Poll, null=True)
choice = models.CharField(max_length=200)
def __unicode__(self):
return self.choice
class Meta:
ordering = ('poll',)
admin.site.register(Poll, PollAdmin)
admin.site.register(Choice, ChoiceAdmin)
# admin.py
from django.contrib import admin
class PollAdmin(admin.ModelAdmin):
pass
class ChoiceAdmin(admin.ModelAdmin):
pass
Problem shows itself when the "Choices" link is clicked in the admin index page. This is the traceback generated:
Environment:
Request Method: GET
Request URL: http://ikki:8000/admin/issues/choice/
Django Version: 0.97-newforms-admin-SVN-unknown
Python Version: 2.4.4
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'nfa_test.issues']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.middleware.doc.XViewMiddleware')
Traceback:
File "/mnt/disk2/ramiro/hg-repos/django/t3002-nf-a/django/core/handlers/base.py" in get_response
82. response = callback(request, *callback_args, **callback_kwargs)
File "/mnt/disk2/ramiro/hg-repos/django/t3002-nf-a/django/contrib/admin/sites.py" in root
137. return self.model_page(request, *url.split('/', 2))
File "/mnt/disk2/ramiro/hg-repos/django/t3002-nf-a/django/contrib/admin/sites.py" in model_page
154. return admin_obj(request, rest_of_url)
File "/mnt/disk2/ramiro/hg-repos/django/t3002-nf-a/django/contrib/admin/options.py" in __call__
242. return self.changelist_view(request)
File "/mnt/disk2/ramiro/hg-repos/django/t3002-nf-a/django/contrib/admin/options.py" in changelist_view
586. self.date_hierarchy, self.search_fields, self.list_select_related, self.list_per_page, self)
File "/mnt/disk2/ramiro/hg-repos/django/t3002-nf-a/django/contrib/admin/views/main.py" in __init__
148. self.query_set = self.get_query_set()
File "/mnt/disk2/ramiro/hg-repos/django/t3002-nf-a/django/contrib/admin/views/main.py" in get_query_set
309. qs = qs.order_by(order_type + lookup_order_field)
File "/mnt/disk2/ramiro/hg-repos/django/t3002-nf-a/django/db/models/query.py" in order_by
427. obj.query.add_ordering(*field_names)
File "/mnt/disk2/ramiro/hg-repos/django/t3002-nf-a/django/db/models/sql/query.py" in add_ordering
1293. raise FieldError('Invalid order_by arguments: %s' % errors)
Exception Type: FieldError at /admin/issues/choice/
Exception Value: Invalid order_by arguments: ['issues_poll.id']
