For a list:-type field, I think you can only use IS_IN_SET(...,
multiple=True), IS_IN_DB(..., multiple=True), IS_NOT_EMPTY(), and
IS_LIST_OF(), no?
IS_LIST_OF() takes only a single additional validator, so to apply multiple
validators using it, you would probably have to create a custom validator
that applies multiple validators.
Anthony
On Wednesday, January 8, 2014 1:04:36 PM UTC-5, Massimo Di Pierro wrote:
>
> You simply need in the model or in the action before SQLFORM
>
> db. register.sample_name.requires=(IS_ALPHANUMERIC(),IS_LENGTH(maxsize=6))
>
>
>
> On Wednesday, 8 January 2014 07:44:15 UTC-6, curly wrote:
>>
>> Hello,
>>
>> I'm trying to validate a list:string field with is_alphanumeric and
>> is_length - trying to ensure that names are no longer than 6 alphanumeric
>> characters in length. (I'm running web2py 2.8.1 in ubuntu 12.04)
>>
>> view:
>> <li>Sample name *: {{=form.custom.widget.sample_name}}</li>
>>
>> controller:
>> form = SQLFORM(db.register,fields=[..,'sample_name',...])
>>
>> if form.validate(onvalidation=validate_sample_name):
>> form.vars.id = db.register.insert(**dict(form.vars))
>> response.flash = 'Reg saved.'
>> redirect(URL('samples', 'default', 'index'))
>> elif form.errors:
>> response.flash = 'form has errors'
>> return dict(form=form)
>>
>> model:
>> db.define_table(
>> "register",
>> .....
>> Field('sample_name','list:string'),
>> )
>>
>> def validate_sample_name(form):
>> for sample in form.vars.sample_name:
>> out,ers = IS_ALPHANUMERIC()(sample) and
>> IS_LENGTH(maxsize=6)('sample')
>> if ers:
>> form.errors.sample_name = ers
>>
>>
>> The above does check for alphanumeric characters but doesn't seem to
>> check for the length of each sample name.
>>
>> Am I doing something wrong?
>>
>> Many thanks.
>>
>>
--
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