how to trigger an action on issue update

[Pat Noack]

HOw can I trigger an action on an issue update.  Workflow validators and post functions are not enough.  I want to be able to make sure that anyone that was ever an assignee to a ticket is in the watcher field even if they are no longer the current assignee.   I have part of this working in the workflow but the assignee can change without going through a transision.

[Nic Brough -Adaptavist-]

You'll need to find or write a listener that can pick up "issue assigned" and "issue edited" events (then it can basically run the same code as your post-function, although it'll also need to re-index the issue as well)

[Midori]

I'd also check if the JIRA Automation Plugin makes it easier. I know that it can intercept the "issue updated" events, but I'm not sure if its "Edit issue" action is flexible enough for your purposes.