Using ScriptRunner Post Function to set issue custom date based on other custom date field

[Anthony Craiu]

JIRA Version: v6.3.15 (JIRA Server)

Script Runner Version: 3.0.16

My Objective -

{ 

Add 1278 days (30 months) to a datepicker custom field "DateCF1" and store it to another custom date field, "DateCF2" with a post function. I don't want to change DateCF1, it is just the starting date for DateCF2.

}

I've "found" multiple solutions to this problem, none of which have worked. I don't know what I'm doing wrong.

I don't want to use a scripted field, as I'd like the project administrators to have the ability to edit DateCF2 after the transition, as needed.

My current approach has been "Add post function" -> "Script Post-Function" -> "Custom script post-function" -> "Inline script" ->

def dateField = getCustomFieldValue("DateCF1")
def number = 1278

result = dateField + number
setCustomFieldValue("DateCF2",new Date(result.getTime()))

Any help at all would be sincerely appreciated.

I don't have access to the log as I'm not a server admin, so my trial and error has been publishing the workflow and moving through the transition. 

Thank you in advance,

Craiu

[Steve Thornhill]

This doesn't answer your query on the function of behaviours, but couldn't you achieve the same function by just using a validator on the workflow to check that Assignee has been changed?

[Frank Winkler]

Thanks Steve! I also thought of a validator at first. But the requirement is that the assignee should be set to "unassigned" when the transition screen is opened (and only in the screen's field). If I use a validator, I would set the assignee in the issue - and when the user closes the transition screen with Cancel it would stay "unassigned".