Let's say I've got simple structure Order-->Item-->Detail.
class Detail(Base):
...
class Order(Base):
...
class Item(Base):
...
detail = relation(Detail, uselist=False, lazy=False)
order = relation(Order, uselist=False, backref='items')
Of course I can specify order_by for Order.items by any columns from
Item, but is there a way I can order_by a column defined in Detail?
I've naively tried something as backref('items', order_by=Detail.id),
but because Detail is anonymously joined to Item as e.g. 'details_1',
I've received ProgrammingError: invalid reference to FROM-clause
entry for table "details".
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