Restrict approval based on selected approver in a Software project.

[Natasja Eloff]

I would like to know if it's possible, using ScriptRunner, to restrict who approves tickets created within a software project.
I have a custom field Approvers (Single Select).
The people who can be added as approvers are defined in the users and groups of the project,
I used validation on the workflow to make sure the Reporter and Approver are not the same person.
I now have to make sure that the approvers selected is the only person who can press the approval button and not anyone in this group.

I have behaviour scripting for the Reporter and Approver to not be the same
How do I change it to validate that the selected approver is the one that press the approval button and not anyone in the group?

// Get the current user
def currentUser = ComponentAccessor.getJiraAuthenticationContext().getLoggedInUser()

// Get the changed field
def approversField = getFieldByName("Approvers (Single)")
def reporterField = getFieldById("reporter")

//def userInPickerCF = it.getCustomFieldValue(approverFieldValue)

if(!(approversField.getValue()?.toString().equals("")))
{
if(approversField.value.toString() == reporterField.value.toString()
/* || currentUser.key == approversField.value.toString() */|| reporterField.value.toString() == approversField.value.toString())
{
approversField.setError("Please select a different Approver (Approver must not be the same as Reporter)")

}
else
{
approversField.clearError()
}
}

[Peter-Dave Sheehan · Accepted solution]

You can use a Condition in your Approve transition to ensure that only the user in the Approvers custom field can see the Approve button.

[Natasja Eloff]

I have this condition. It still allows everyone in the role of the approvers to see the ticket.
I want only the selected approver to see the approval button and not everyone in the group.

[Natasja Eloff]

I opted to use the workflow functions to assign the ticket to the selected approver and then to have a condition that only assignee can approve the request as well as be in the group/role.
Then I added a post function to clear the assignee field.

This will also help with notification of the assigned ticket.
No need for scripting.

[Peter-Dave Sheehan]

It's great to have the ability to use scripting to meet requirements. But it still adds some maintenance overhead. So if you can meet your requirement without scripting, that's always best.