Scriptrunner fields hiding/showing based on another field value

[jmarko]

Hi,
I have problem with showing/hiding fields based on value chosen in previous field.
I found similar questions on this forum, but every solution that I tried failed. Perhaps its problem with Jira Service Desk version? We're using version 4.6.0 . 
We want to have field 'Vrsta poizvedbe' with few options. When option 'Duplikat is chosen' by costumer on portal field 'Datum predvidenega vračila' is shown. 
Otherwise is hidden. Its like cascadingValues is not 'Duplikat'. Is there a way to see what is in this field than?
Please help.

[PD Sheehan · Accepted solution]

You have to put the serer-side script on the trigger field, not the target field.

So in this case, add the script to 'Vrsta poizvedbe'

def valuesToCauseHiding = ['Duplikat']
def fieldsToHide = ['customfield_12629']
def triggerField = getFieldById(getFieldChange())
def triggerValue = triggerField.value
fieldsToHide.each{fieldId-> 
  def fieldToHide = getFieldById(fieldId)
  fieldToHide.setHidden(triggerValue in valueToCauseHiding)
}

[jmarko]

Thank you Peter