I am trying to create a property on a mapped class which basically
executes a subquery. Here is what I'm trying to do in non-working
pseudo code:
mapper(OrderChain, Table('order_chains', self.meta,
autoload=True),
properties={'entries': relation(OrderChainEntry,
order_by=Column('timestamp')),
'first_cancel':
select(OrderChainEntry).filter('type'='new').first()
})
Is something like this possible? Or what's the best way to approach
it?
Also, if I've mangled terminology and/or written something that makes
no sense, please let me know - I'm very new to this package!
Cheers,
Andrew
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