Hi Massimo, and thank you for your reply. :) I had already tried requires=IS_EMPTY_OR(IS_IN_SET(....)) and it seems not to work. The form is not accepted because the selected value is not in the set. Perhaps I am missing something!?
Cheers, David On 6 November 2012 14:42, Massimo Di Pierro <[email protected]>wrote: > requires=IS_EMPTY_OR(IS_IN_SET(....)) > > > On Tuesday, 6 November 2012 06:46:24 UTC-6, David Sorrentino wrote: >> >> Hey there! :) >> >> Other day, other doubt. :P >> >> In my controller I define a form with SQLFORM.factory. This form contains >> a dropdown. >> Here is the code. >> def mansioni(): >> form = SQLFORM.factory( >> Field('just_a_dropdown', requires=IS_IN_SET({'first_**choice': 'First >> choice', 'second_choice': 'Second choice'}, zero='Please, make your >> choice...')) >> ) >> return dict(form=form) >> >> My problem is that, understandably, one of the two values must be >> selected, otherwise the form will not be accepted. >> So the question is: is there any way to make this dropdown optional? >> >> Best, >> David >> > -- > > > > --
