[html-formfu] constraint on multi-select elements

[Carl Franks]

On 01/06/07, Thorsten Domsch <tdomsch at gmx.de> wrote:
> Hello Carl,
>
> here's a snippet from my yml file so you can see how i use the field:
>
>   - type: date
>     name: justadate
>     start_year: 1977
>     end_year: 2010
>     constraints:
>         - Required
>     comment: please choose a correct date
>
> so i guess it should be alright... but doesn't work. Error like i wrote
> "no field names to add constraint to at /usr/loc..."

ah, the constraints are being added during the creation of the date
element - before your setup() has run and added the sub-elements.
I think to get around that, you'll have to do something like:

---
elements:
  - type: block
    name: justadate
    start_year: 1977
    end_year: 2010
    comment: please choose a correct date

constraints:
  - type: Required
    name: [date_year, date_month, date_day]