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'''Description''' | '''Description''' | ||
This question attribute can be used to set the minimum value for the calendar question. It applies to both, the popup-variant of the calendar and the dropdown fields. However, for the dropdown fields, only the year is used as a minimum. | This question attribute can be used to set the minimum value for the calendar question. It applies to both, the popup-variant of the calendar and the dropdown fields. However, for the dropdown fields, only the year is used as a minimum. | ||
'''Valid values''' | '''Valid values''' | ||
#'''Any date value in format YYYY-MM-DD''' (eg., 2013-08-24) | #'''Any date value in format YYYY-MM-DD''' (eg., 2013-08-24) | ||
#'''Any year value''' | #'''Any year value''' | ||
Revision as of 17:01, 17 September 2013
Minimum date (date_min) (New in 2.05 )
Description This question attribute can be used to set the minimum value for the calendar question. It applies to both, the popup-variant of the calendar and the dropdown fields. However, for the dropdown fields, only the year is used as a minimum.
Valid values
- Any date value in format YYYY-MM-DD (eg., 2013-08-24)
- Any year value
- Reference to another date/time question in curly braces (eg., {dateofbirth} )
- Expressions, work on a following page, not on the same: E.g, You can use a date from a previous answer + 3 days as a minimum for the present question by entering {date("Y-m-d",strtotime(departuredate)+3*60*60*24)}. The question with the code 'departuredate' has to be on a previous page in the survey (either in a different group in group by group mode or use question by question mode).