Hi there,
I'm facing an issue with the use of AbstractConcreteBase class and a
@declarred_attr returning a query_expression()
class A(AbstractConcreteBase, Base):
@declared_attr
def foo(cls):
return query_expression()
class B(A):
...
class C(A):
...
objects = db.session.query(A).options(with_expression(A.foo, my_expression
)).all()
B and C objects returned have the property foo but it is None
The generated SQL query returns a value for the expression but the mapping
seems to be not effective
Am I doing something wrong ?
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