Nevermind, found it.
requires=IS_EMPTY_OR(IS_DATE())


On Monday, December 30, 2013 11:31:36 AM UTC-6, Keith Planer wrote:
>
> One other small problem, the field doesn't allow for nothing to be entered 
> now. How do I make it optional?
>
> On Monday, December 30, 2013 8:33:34 AM UTC-6, Paolo Caruccio wrote:
>>
>> Please try to add to the INPUT the class "date":
>>
>> form=FORM(TABLE(...TR("Admission Date: ",INPUT(_class='date',_name=
>> 'adm_date',widget=SQLFORM.widgets.date.widget,requires=IS_DATE()))...
>>
>>
>>
>> Il giorno lunedì 30 dicembre 2013 09:48:06 UTC+1, Keith Planer ha scritto:
>>>
>>> After adding some input validation I've realized that the calendar 
>>> widget is not popping up. Is there anything I need to add to the controller 
>>> or elsewhere?
>>>
>>> form=FORM(TABLE(...TR("Admission Date: ",INPUT(_name='adm_date',widget=
>>> SQLFORM.widgets.date.widget,requires=IS_DATE()))...
>>>
>>>
>>>

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