#10594: distance(geom) results ambiguous when the PointField can be null
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Reporter: whiteinge | Owner: nobody
Status: new | Milestone:
Component: GIS | Version: SVN
Keywords: distance queryset | Stage: Unreviewed
Has_patch: 0 |
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Given the following GIS model:
{{{
class SomeModel(models.Model):
location = models.PointField(null=True)
<snip>
}}}
When populated with instances that both have and do not have location
information, doing a {{{distance(geom)}}} query yields unexpected results.
For example, {{{SomeModel.objects.distance(somePoint)}}} returns no
results at all.
{{{SomeModel.objects.filter(location__isnull=False).distance(somePoint)}}}
works as expected.
IMO, {{{distance(geom)}}} results that cannot calculate distance should
simply return None.
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Ticket URL: <http://code.djangoproject.com/ticket/10594>
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