Hi all,
I have a base class common for all my orthogonal models, that is,
models that hold content for other models, such as tags. This base
class also has a manager. Here are the classes:
class OrthoManager(models.Manager):
def get_for_object(self, object):
ctype = ContentType.objects.get_for_model(object)
return self.filter(content_type__pk=ctype.id,
object_id=object.id)
def get_for_model(self, model):
ctype = ContentType.objects.get_for_model(model)
return self.filter(content_type__pk=ctype.id)
class Ortho(models.Model):
content_type = models.ForeignKey(ContentType,
editable=False,
blank=True,
null=True)
object_id = models.PositiveIntegerField(blank=True,
editable=False,
null=True)
object = generic.GenericForeignKey('content_type', 'object_id')
objects = OrthoManager()
When I define my orthogonal model like that:
class Tag(Ortho):
tag = models.CharField(maxlength=50)
and try to access its manager, I get a:
Programming Error: relation "models_ortho" does not exist
i.e. it looks for the "models_ortho" table.
If I add:
objects = OrthoManager()
to the Tag model class (the inherited class), it works fine.
It seems that I cannot inherit the manager of the base class. Is this
by design? Or am I doing something wrong?
Thanks,
oMat
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