use a TypeDecorator like
http://www.sqlalchemy.org/docs/core/types.html#rounding-numerics and change the
"rounding" part to "raise an error".
On Oct 28, 2011, at 6:27 PM, Michael Hipp wrote:
> Could someone point me to a doc page that explains how to enforce a
> range limit on a Numeric type. I have some monetary values that I want
> to force to always be >= Decimal('0.00').
>
> Thanks,
> Michael
>
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