Hi Mike,
Thank you very much. A thousand years and I still wouldn't be able to
figure that one out.
And thank you also for clarifying use of Comparators - makes coding simpler
with expression instead.
Thanks,
George
On Saturday, 20 November 2021 at 00:28:00 UTC+11 Mike Bayer wrote:
>
You ought to be able to use the "sqlalchemy.func" system:
https://docs.sqlalchemy.org/en/14/core/tutorial.html#functions
server_default=sa.func.gen_random_uuid()
Hope that helps,
Simon
On Fri, Nov 19, 2021 at 6:21 AM jens.t...@gmail.com
wrote:
>
> Tim,
>
> I wanted to offload the UUID
there's no need to use custom Comparator objects, these are difficult to get
right and there's not really any need to use them except in the extremely
unusual case that you need specific SQL operators to do something different,
which itself is not really a thing in modern SQLAlchemy.
Just use
heya -
haven't run it yet but if you are on SQLAlchemy 1.3, the signature for case()
is different (sorry, note the list ):
https://docs.sqlalchemy.org/en/13/core/sqlelement.html?highlight=case#sqlalchemy.sql.expression.case
expr = case(
[(cls.Type == "SELL", cast(cls.Units *
