Hi,
is there a way to map a class against an arbitrary SQL expression
(read-only would be OK)? I can't find the correct way to define the
selectable for the mapper.
Example:
this table:
carside_table = Table(
'carside', metadata,
Column('id', Integer, primary_key=True),
Column('car_id', Integer),
Column('side', Text),
Column('temperature', Float),
)
with a dummy class;
class CarSide(object):
pass
And I want to use this SQL expression to map the class:
SELECT
left.car_id
left.temperature AS left_temperature
right.temperature AS right_temperature
FROM carside AS left
JOIN carside AS right
ON left.car_id=right.car_id
WHERE
left.side = "left" AND
right.side = "right"
;
Many thanks,
Jan.
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