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[Markus Bekken <markus@xxxxxxxxx>]

Hi Olav,
the following syntax is now supported:  
> - #{wmSb9TmevMn.jeK5z6acB3N}  == ‘’

Jira issue: https://jira.dhis2.org/browse/DHIS2-1185 <https://jira.dhis2.org/browse/DHIS2-1185>

Best regards,
Markus

> 1. feb. 2017 kl. 13.40 skrev Olav Poppe <olav.poppe@xxxxxx>:
> 
> Hi devs, I’m trying (in 2.25) to make a program indicator counting events where a specific data element has not been filled.
> 
> Tested so far: 
> - d2:hasValue(‘wmSb9TmevMn.jeK5z6acB3N’)		=> not supported in program indicators, only program rules
> - #{wmSb9TmevMn.jeK5z6acB3N}  == ‘’	 		=> no data 
> - #{wmSb9TmevMn.jeK5z6acB3N}  != ‘’ 			=> counts the events WITH data, but I’m unable to «invert» this:
> 	-- !(#{wmSb9TmevMn.jeK5z6acB3N}  != ‘’) 		=> no data, catalina.out shows: ERROR: operator does not exist: ! boolean
> 	-- (#{wmSb9TmevMn.jeK5z6acB3N}  != '') != true 	=> no data
> - #{wmSb9TmevMn.jeK5z6acB3N}  is null 			=> works, but is not a supported format from what I understand.
> 
> In general, what is displayed in «Filter description» and what actually works is not consistent - some things are invalid, but work, others are valid but don’t work…
> 
> Any advice?
> 
> Regards
> Olav
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