MaxValueValidator to validate a model

[refreegrata]

Hello list. I want to validate the data in a field of a model.

with this
validators=[MaxValueValidator(14)]
the field is correctly validated

but with this
validators=[MaxValueValidator(14.5)]
always is invalid

Somebody know how use the "MaxValueValidator" when the "max_value" is
a decimal?

thanks for read.

[refreegrata]

Now works.
validators=[MaxValueValidator(Decimal('14.5'))

But I must to do an explicit declaration Decimal('14.5').

Somebody knows why?

[Steve Holden]

On 10/15/2010 9:18 PM, refreegrata wrote:
> Now works.
> validators=[MaxValueValidator(Decimal('14.5'))
>
> But I must to do an explicit declaration Decimal('14.5').
>
> Somebody knows why?

Because only decimal numbers can give exact comparisons to arbitrary
decimal values. You would not want your input to validate correctly with
an entry of (say) 14.500000000000001, which might be possible if the
limit was expressed as a floating-point number.

regards
Steve
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DjangoCon US 2010 September 7-9 http://djangocon.us/