How to assign an issue via Script Listener

[Michael Schultz]

I have this Listener (below). What I want to happen:

When the issue type is set as 'Enhancement Request' by a specified author, assign the issue to another specified user (user).

If the event author is not the user I've specified, ignore this auto-assignment.

import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.issue.Issue;
import org.apache.log4j.Category;
import com.atlassian.jira.user.ApplicationUser;
import com.atlassian.jira.issue.MutableIssue


def Category log = Category.getInstance("com.onresolve.jira.groovy")
log.setLevel(org.apache.log4j.Level.INFO)

Issue issue = event.issue as MutableIssue
def issueObject = issue.getKey()
def author = event.getUser().getDisplayName()

if( ["Enhancement Request"].contains(issue.issueType.name) && author == {string username})
{ log.info 'Issue Type is Enhancement Request.'
def userManager = ComponentAccessor.getUserManager()
def user = ComponentAccessor.getUserManager().getUserByKey({string username})
def admin = userManager.getUserByName({string username})


issue.setAssigneeId(user)
return "Author = " + { log.info author.toString() };
return "Assignee = " + { log.info user.toString() };
}

@Adaptavist Supp 

[Michael Schultz · Accepted solution]

For those of you wondering, I retooled the script and was able to solve it. Here it is:

import com.atlassian.jira.issue.MutableIssue
import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.user.util.UserManager
import com.atlassian.jira.user.ApplicationUser
import com.atlassian.jira.event.type.EventDispatchOption
import com.atlassian.jira.issue.IssueManager

UserManager userManager = ComponentAccessor.getUserManager()
IssueManager issueManager = ComponentAccessor.getIssueManager()

def issue = event.getIssue() as MutableIssue
def author = event.getUser().name.toString()
final List<String> projTeam = ['user1', 'user2', 'user3', 'user4']

ApplicationUser assignToUser = userManager.getUserByKey('user5')

if (["Enhancement Request"].contains(issue.issueType.name) && author in projTeam) { 
  issue.setAssignee(assignToUser)
  issueManager.updateIssue(assignToUser, issue, EventDispatchOption.DO_NOT_DISPATCH, false)
  log.info(author + " changed ticket to Enchancement Request.")
}
else
  log.info("Non-projTeam user switched issue to Enhancement Request.")