Reset values of hidden fields in Confiforms datasets

Question

Dear community,

I'm trying to purge data from a hidden field in a Confiforms data set. Reason for this is that I populate this field in a complex approval process, and in rare cases fetching the data I want to put in there via IFTTT fails due to DNS lookup errors. So I need to reset the data and run the process again.

I tried an IFTTT ActionButton and put as "Action to perform"

confluencelink=[empty]

but this won't empty the field "confluencelink".

confluencelink=NULL

or just

confluencelink=

also doesn't work. How am I supposed to tell the macro that I what confluencelink to be empty?

Thanks a bunch!

Alex Medved _ConfiForms_ · Answer

I think what you are looking for is to use the ! with the expression (this is evaluated as Velocity template anyway, see "Quiet Reference Notation" section)

$!{iftttResult_0.id}

it will set the empty value if there is no iftttResult_0 or no id property in this IFTTT result

Dennis W · Answer

Sorry, my previous message was wrong. I have an error downstream that re-creates the entries.

As we're already talking: do you know how to check whether ${iftttResult_0.id} has a value in the IFTTT conditions?

Dennis W · Answer

Thank you! Your solution seems to work with 1 value I want to reset, but full disclosure: it's 2! :)  And with two the changes are not applied.

Any idea?

entryId=[entry.id]&confluencelink=&jiralink=