Scriptrunner

[Stanislav]

Im new to scriptrunner
Add user (Tom Thomas) as a watcher on an issue if assignee is (John Johnson) in a certain project, for example project ABC. Where i should write script ? Behaviour, post function, listeners ?
If you can provide me with a script it would be perfect 

[Nic Brough -Adaptavist- · Accepted solution]

Listener would be best, because it can update the watchers on edit as well as transition.

https://library.adaptavist.com/entity/automatically-add-watchers-to-newly-created-issues

should get you started.  You'll want to change the events it's looking at (create, update, assign and possibly transition if you change assignees during transitions), and add a bit of logic for "if user X then add watcher Y", but most of what you need is there.

[Stanislav]

if assignee was added not at the creation of issue but later in the workflow or have been changed will it work?

[Nic Brough -Adaptavist-]

That's what the listener is for - it can catch "edit" and "assign" events where the assignee may be changed.

So yes, it can pick up the current assignee whenever it changes.

[Stanislav]

@Nic Brough -Adaptavist-  What do you think about this code will it work

import com.atlassian.jira.component.ComponentAccessor

def watcherManager = ComponentAccessor.watcherManager
def userManager = ComponentAccessor.userManager
def loggedInUser = ComponentAccessor.jiraAuthenticationContext.loggedInUser

if(loggedInUser.name == "John Johnson") {
    def watchUsers = { usernames ->
        usernames.each {
            def user = userManager.getUserByName(it)
            watcherManager.startWatching(user, issue.genericValue)
        }
    }
    def users = ["tthomas"] // use Tom Thomas' username not full name
    watchUsers(users)    
}

[Daniel Ebers]

This seems to have been continued here:
https://community.atlassian.com/t5/Jira-Software-questions/Scriptrunner-post-function-or-behaviour/qaq-p/1711254