#15711: Abstract model managers should return subclass instances
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Reporter: jdunck | Owner: nobody
Status: new | Milestone:
Component: Database layer | Version: 1.2
(models, ORM) | Triage Stage:
Keywords: pony | Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
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Suppose a base:
{{{
class Document(Model):
title = CharField()
class Meta:
abstract = True
class Presentation(Document):
num_kitten_pictures = IntegerField()
class Spreadsheet(Document):
num_pie_charts = IntegerField()
}}}
It would be useful if Documents.objects.filter(title='x') returned
instances of both Presentation and Spreadsheet whose title was 'x'.
I'd expect support only for base-class fields. This should be safe, since
inheritance should follow an is-a relationship.
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Ticket URL: <http://code.djangoproject.com/ticket/15711>
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