Automatically Assign an Issue based on the Modulus Value of the Issue Key

    

        
        
        
            
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    import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.event.type.EventDispatchOption
import com.atlassian.jira.issue.MutableIssue

def issueManager = ComponentAccessor.issueManager
def projectManager = ComponentAccessor.projectManager
def userManager = ComponentAccessor.userManager

//Specify Project Key
def project = projectManager.getProjectByCurrentKey('')

//Specify User's Name
def user1Id = ''
def user2Id = ''
def user3Id = ''

def issues = issueManager.getIssueObjects(issueManager.getIssueIdsForProject(project.id))

issues.sort().each {
    def issue = it as  MutableIssue

    def user1 = userManager.getUserByName(user1Id)
    def user2 = userManager.getUserByName(user2Id)
    def user3 = userManager.getUserByName(user3Id)

    def filter  = issue.key.replace("${project.key}-", '') as Integer

    if ( filter % 10 == 0 ) {
        issue.setAssignee(user1)
    } else if ( filter % 2 == 0 || filter % 3 == 0 ) {
        issue.setAssignee(user2)
    } else {
        issue.setAssignee(user3)
    }
    issueManager.updateIssue(issue.assignee, issue, EventDispatchOption.DO_NOT_DISPATCH, false)
}