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Fixed #8291 -- Allowed 'pk' to be used as an ordering option in Model.Meta. Thanks to peterd12 for the report and to evan_schulz, gruszczy, frog32 and David Gouldin for their work on the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17445 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Julien Phalip 2012-02-04 19:56:40 +00:00
parent 3db80c4c05
commit d3154d1896
4 changed files with 52 additions and 1 deletions

View File

@ -283,6 +283,11 @@ def get_validation_errors(outfile, app=None):
# this format would be nice, but it's a little fiddly).
if '__' in field_name:
continue
# Skip ordering on pk, this is always a valid order_by field
# but is an alias and therefore won't be found by
# opts.get_field.
if field_name == 'pk':
continue
try:
opts.get_field(field_name, many_to_many=False)
except models.FieldDoesNotExist:

View File

@ -233,6 +233,15 @@ class UnicodeForeignKeys(models.Model):
class PrimaryKeyNull(models.Model):
my_pk_field = models.IntegerField(primary_key=True, null=True)
class OrderByPKModel(models.Model):
"""
Model to test that ordering by pk passes validation.
Refs #8291
"""
name = models.CharField(max_length=100, blank=True)
class Meta:
ordering = ('pk',)
model_errors = """invalid_models.fielderrors: "charfield": CharFields require a "max_length" attribute that is a positive integer.
invalid_models.fielderrors: "charfield2": CharFields require a "max_length" attribute that is a positive integer.

View File

@ -24,3 +24,12 @@ class Article(models.Model):
def __unicode__(self):
return self.headline
class ArticlePKOrdering(models.Model):
headline = models.CharField(max_length=100)
pub_date = models.DateTimeField()
class Meta:
ordering = ('-pk',)
def __unicode__(self):
return self.headline

View File

@ -5,7 +5,7 @@ from operator import attrgetter
from django.test import TestCase
from .models import Article
from .models import Article, ArticlePKOrdering
class OrderingTests(TestCase):
@ -137,3 +137,31 @@ class OrderingTests(TestCase):
],
attrgetter("headline")
)
def test_order_by_pk(self):
"""
Ensure that 'pk' works as an ordering option in Meta.
Refs #8291.
"""
a1 = ArticlePKOrdering.objects.create(
pk=1, headline="Article 1", pub_date=datetime(2005, 7, 26)
)
a2 = ArticlePKOrdering.objects.create(
pk=2, headline="Article 2", pub_date=datetime(2005, 7, 27)
)
a3 = ArticlePKOrdering.objects.create(
pk=3, headline="Article 3", pub_date=datetime(2005, 7, 27)
)
a4 = ArticlePKOrdering.objects.create(
pk=4, headline="Article 4", pub_date=datetime(2005, 7, 28)
)
self.assertQuerysetEqual(
ArticlePKOrdering.objects.all(), [
"Article 4",
"Article 3",
"Article 2",
"Article 1",
],
attrgetter("headline")
)