Hi Anthony,
do you have an answer for the second problem? I want to get the number of
items in the list "auswahl":
form = SQLFORM.factory(
Field("auswahl", "list:string"),
)
- If there is only one item in "auswahl" then the type of
form.vars.auswahl is string and len(form.vars.auswahl) is the length of the
string.
- If there is more than one item, the type is list and
len(form.vars.auswahl) is the desired length.
I think it would be better if "list:string" delivers always a list.
Something like
len(form.vars.auswahl) if isinstance(form.vars.auswahl, list) else 1
is not very pythonic.
2018-05-18 17:03 GMT+02:00 Anthony <[email protected]>:
> On Wednesday, May 16, 2018 at 1:35:02 PM UTC-4, mweissen wrote:
>>
>> I understand that there is no DEFAULT VALIDATOR for 'list:string', but it
>> seems that is not possible to use IS_LENGTH at all.
>>
>
> See the end of this section: http://web2py.com/
> books/default/chapter/29/07/forms-and-validators#Validators. In
> particular, it notes that you can use IS_LIST_OF in conjunction with any
> other validator.
>
> Anthony
>
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