I've seen similar discussions here, but it's been a while so perhaps
things have changed.
class Foo(Base):
__tablename__ = 'foo'
type = Column(Integer)
__mapper_args__ = {'polymorphic_on': type}
...
class BarFoo(Foo):
__mapper_args__ = {'polymorphic_identity': 1}
bar_id = Column(Integer)
# relations
bar = relation('Bar')
class BazFoo(Foo):
__mapper_args__ = {'polymorphic_identity': 2}
baz_id = Column(Integer)
# relations
baz = relation('Baz')
## assume existence of Bar and Baz objects
Is there a way to say, query all Foo objects while eager-loading the
bar/baz relations?
- Jae
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