How to write condition when Custom field changes value

Question

Hello!

I have problem with writing a condition in Script Listener.

I have CF called "Investment" - it have 3 options: "Required", "Not required", "I am not sure".

I want to write a condition, which checks when field "Investment" is changing value from "Not required" to one of the others and then create linked issue in other project.

Now I have created listener only on "Create issue" event

Confition looks like that:

cfValues['Investment']?.value == "Required" ||
cfValues['Investment']?.value == "I am not sure"

, but I want to have when task is even edited and it have changed "Investment" value.
It is possible?

Dar Kronenblum · Answer

Hi
in this case you should use issue update event and get the changed fields:

List <Map> changes=event?.getChangeLog()?.getRelated("ChildChangeItem") as List

you can get the fields :

def field=change.field

and their new and old values:

change?.oldstring
change?.newstring

good luck :)