From 2dd9a85819218e481f9bc6e88264c2b1ae5f25e8 Mon Sep 17 00:00:00 2001 From: Adrian Holovaty Date: Sat, 9 Jan 2010 21:27:39 +0000 Subject: Fixed #7235 -- EmptyQuerySet no longer raises and exception when it's filter()ed (along with some other QuerySet methods). Thanks, taylormarshall git-svn-id: http://code.djangoproject.com/svn/django/trunk@12147 bcc190cf-cafb-0310-a4f2-bffc1f526a37 --- tests/regressiontests/queries/models.py | 35 ++++++++++++++++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-) (limited to 'tests') diff --git a/tests/regressiontests/queries/models.py b/tests/regressiontests/queries/models.py index aababffbab..43c843756c 100644 --- a/tests/regressiontests/queries/models.py +++ b/tests/regressiontests/queries/models.py @@ -8,7 +8,8 @@ import sys from django.conf import settings from django.db import models, DEFAULT_DB_ALIAS -from django.db.models.query import Q, ITER_CHUNK_SIZE +from django.db.models import Count +from django.db.models.query import Q, ITER_CHUNK_SIZE, EmptyQuerySet # Python 2.3 doesn't have sorted() try: @@ -969,6 +970,38 @@ Bug #7759 -- count should work with a partially read result set. ... break True +Bug #7235 -- an EmptyQuerySet should not raise exceptions if it is filtered. +>>> q = EmptyQuerySet() +>>> q.all() +[] +>>> q.filter(x=10) +[] +>>> q.exclude(y=3) +[] +>>> q.complex_filter({'pk': 1}) +[] +>>> q.select_related('spam', 'eggs') +[] +>>> q.annotate(Count('eggs')) +[] +>>> q.order_by('-pub_date', 'headline') +[] +>>> q.distinct() +[] +>>> q.extra(select={'is_recent': "pub_date > '2006-01-01'"}) +[] +>>> q.query.low_mark = 1 +>>> q.extra(select={'is_recent': "pub_date > '2006-01-01'"}) +Traceback (most recent call last): +... +AssertionError: Cannot change a query once a slice has been taken +>>> q.reverse() +[] +>>> q.defer('spam', 'eggs') +[] +>>> q.only('spam', 'eggs') +[] + Bug #7791 -- there were "issues" when ordering and distinct-ing on fields related via ForeignKeys. >>> len(Note.objects.order_by('extrainfo__info').distinct()) -- cgit v1.3