On 7/15/15 9:09 AM, Richard Gerd Kuesters wrote:
hi all,
i was wondering if there's a way to create more than one level of
polymorphic entities in sa. quick example:
class Foo(Base):
...
__mapper_args__ = { ... }
class Bar(Foo):
...
__mapper_args__ = { ??? } # <--- polymorphic_identity for ...
two?
class Baz(Bar): # <--- is this possible?
...
yes, you give a new polymorphic_identity to Baz separate from Bar.
The only requirement is that they are all using the same column on "Foo"
for the differentiation (cascading polymorphic_on columns isn't
supported yet).
cheers,
Richard.
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