[web2py] Why is first element in IS_IN_SET pull-down always blank?

2010-02-06 Thread weheh 
In a crud form (or other form) where I have a field declared as a
string that requires=IS_IN_SET(['A','B','C']), the first item in the
automatically-generated pull-down for that enumerated field is a
blank.

Why is that, if there is no blank in my set, and especially, since a
blank setting on that field will fail validation? How to get rid of
the first blank entry?

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Re: [web2py] Why is first element in IS_IN_SET pull-down always blank?

2010-02-06 Thread Jonathan Lundell 
On Feb 6, 2010, at 7:53 PM, weheh wrote:

> In a crud form (or other form) where I have a field declared as a
> string that requires=IS_IN_SET(['A','B','C']), the first item in the
> automatically-generated pull-down for that enumerated field is a
> blank.
> 
> Why is that, if there is no blank in my set, and especially, since a
> blank setting on that field will fail validation? How to get rid of
> the first blank entry?

Try specifying zero=None in the validator.

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