I've filed #7666 [1] which has a test I wrote that fails to illustrate
what I believe is a bug. The code is a lot easier to understand than
my english, so I'll let it speak for itself. To be clear, I'm just
talking about changing the behavior of
ReverseSingleRelatedObjectDescriptor, not
SingleRelatedObjectDescriptor.
I couldn't find any related tickets, so if nothing else I hope this
ticket helps people find the reasoning even if we just close it.
Here's the example:
class SourceManager(models.Manager):
def get_query_set(self):
return super(SourceManager, self).get_query_set().filter(is_public=True)
class Source(models.Model):
is_public = models.BooleanField()
objects = SourceManager()
class Item(models.Model):
source = models.ForeignKey(Source)
>>> public_source = Source.objects.create(is_public=True)
>>> public_item = Item.objects.create(source=public_source)
>>> private_source = Source.objects.create(is_public=False)
>>> private_item = Item.objects.create(source=private_source)
# SUCCESS
>>> public_item.source
<Source: Source object>
# FAIL: Raises DoesNotExist when it quite clearly *does* exist. I
don't think the default manager should have any say here)
>>> private_item.source
<Source: Source object>
Joseph
[1] http://code.djangoproject.com/ticket/7666
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