What about integrating polymorphic features in the ORM? It's like having
the features of django-polymorphic but in the core.
The polymorphism could be acheved by:
1. Having contenttypes installed (this is a common pattern).
2. Specifying a root (first ancestor) model class like:
class MyParentModel(models.Model):
...
class Meta:
polymorphic = True
discriminant = "somefield" #it could default to 'content_type'
if not specified. This field could be created.
To achieve the polymorphism a query could be like:
objects =
MyParentModel.objects.filter(foo=bar,baz=clorch,...).polymorphic().more().calls().ifneeded()
Such method could complain if the contenttypes application is not
installed; it could be based on many select_related() arguments (which are
collected by tree-traversing the hierarchy, perhaps ignoring proxies).
Alternatively, this could be an util in the contenttypes app instead of the
core apps:
objects =
contenttypes.utils.polymorphic(MyParentModel.objects.filter(foo=bar,baz=clorch,...)).more().calls().ifneeded()
Sorry if this was posted before, but it's my first time here and I always
asked why does Django not have this feature in the core.
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