Script Runner - Make Comment Field required on Issue asign

[DavidF]

When users asign issues to each other via the standard asign-function in JIRA (not via workflow transition) I'd like the commentary field to be mandatory. Is that possible in any way?

[Mahesh S · Accepted solution]

Yes, Johny's script might help you. In addition to that, you can remove Assignee field from edit screen and hence, it will be available only in Assign screen. Otherwise, the user can cheat you by performing an inline edit of Assignee in the view screen itself.

[Jonny Carter]

Actually, if you have a behaviour associated with a field, it should disable inline editing on the View Issue page. Granted, the user could still cheat with more advanced techniques; disabling inline editing is JavaScript based, and happens shortly after page load. Behaviours are about convenience, not security.

[Tarun Sapra]

Good to know -  if you have a behaviour associated with a field, it should disable inline editing on the View Issue page

[Mahesh S]

Yes.. Good to know! 

[Jonny Carter · Accepted solution]

You bet it is! This can be done with a Behaviour. Create a behaviour on the Assignee field with a validation script like the one below:

import com.atlassian.jira.component.ComponentAccessor
import com.onresolve.jira.groovy.user.FieldBehaviours
import groovy.transform.BaseScript

@BaseScript FieldBehaviours fieldBehaviours

def commentField = getFieldById("comment")
def assignee = getFieldById(getFieldChanged())

def currentUser = ComponentAccessor.getJiraAuthenticationContext().getLoggedInUser()
log.debug("Assignee: $assignee.value ; Current User: $currentUser.name")

boolean requireComment = assignee.value != currentUser.name && underlyingIssue.getAssignee().name != assignee.value && assignee.value
log.debug("Comment required: $requireComment")
commentField.setRequired(requireComment)

That will make the comment field required whenever the assignee is not "unassigned" and it's not the same user as the person doing the assignment. It should work on the edit issue and assign issue screens.