Auto update subtask status when transition on parent

gistfile1.txt

import com.atlassian.jira.ComponentManager
import com.atlassian.jira.issue.comments.CommentManager
import com.opensymphony.workflow.WorkflowContext
import org.apache.log4j.Category
import com.atlassian.jira.config.SubTaskManager
import com.atlassian.jira.workflow.WorkflowTransitionUtil;
import com.atlassian.jira.workflow.WorkflowTransitionUtilImpl;
import com.atlassian.jira.util.JiraUtils;
import com.atlassian.jira.issue.resolution.Resolution
import com.atlassian.jira.issue.MutableIssue
import com.atlassian.jira.issue.IssueInputParameters

log = Category.getInstance("com.onresolve.jira.groovy.AutoCloseChildIssues")
String currentUser = ((WorkflowContext) transientVars.get("context")).getCaller();
WorkflowTransitionUtil workflowTransitionUtil = ( WorkflowTransitionUtil ) JiraUtils.loadComponent( WorkflowTransitionUtilImpl.class );
SubTaskManager subTaskManager = ComponentManager.getInstance().getSubTaskManager();
Collection subTasks = issue.getSubTaskObjects()
if (subTaskManager.subTasksEnabled && !subTasks.empty) 
  {
    subTasks.each 
    {
      if(it.issueTypeObject.name == "Sub-task")
      {
        String status = it.getStatus().get("name").toString()
        if(!(status.equals("Closed")))
        {
          it.setResolutionId("7")
          log.debug ("issue.statusObject.name: " + issue.statusObject.name)
          workflowTransitionUtil.setIssue(it);
          workflowTransitionUtil.setUsername(currentUser);
          workflowTransitionUtil.setAction(161)
          CommentManager commentManager = (CommentManager) ComponentManager.getComponentInstanceOfType(CommentManager.class);
          String comment = "Moving to *new status* status as a result of the *this transition* action being applied to the parent.";
          commentManager.create(it, currentUser, comment, true);
          workflowTransitionUtil.validate();
          workflowTransitionUtil.progress();
        }
     }
  }
}

import com.atlassian.jira.ComponentManager
import com.atlassian.jira.issue.comments.CommentManager
import com.opensymphony.workflow.WorkflowContext
import org.apache.log4j.Category
import com.atlassian.jira.config.SubTaskManager
import com.atlassian.jira.workflow.WorkflowTransitionUtil;
import com.atlassian.jira.workflow.WorkflowTransitionUtilImpl;
import com.atlassian.jira.util.JiraUtils;
import com.atlassian.jira.issue.resolution.Resolution
import com.atlassian.jira.issue.MutableIssue
import com.atlassian.jira.issue.IssueInputParameters
import com.atlassian.jira.component.ComponentAccessor;
import com.atlassian.jira.issue.Issue;


def Category log = Category.getInstance("com.onresolve.jira.groovy.AutoCloseChildIssues")
String currentUser = ((WorkflowContext) transientVars.get("context")).getCaller();
WorkflowTransitionUtil workflowTransitionUtil = ( WorkflowTransitionUtil ) JiraUtils.loadComponent( WorkflowTransitionUtilImpl.class );
SubTaskManager subTaskManager = ComponentAccessor.getSubTaskManager();
List<Issue> subTasks = issue.getSubTaskObjects()

if (subTaskManager.subTasksEnabled && !subTasks.empty) 
  {
   MutableIssue it = (MutableIssue)subTasks.first()   
   
      if(it.issueTypeObject.name == "Sub-task")
      {
        if(!(status.equals("Closed")))
        {
          it.setResolutionId("7")
          log.debug ("issue.statusObject.name: " + issue.statusObject.name)
          workflowTransitionUtil.setIssue(it);
          workflowTransitionUtil.setUsername(currentUser);
          workflowTransitionUtil.setAction(161)
          CommentManager commentManager = (CommentManager) ComponentManager.getComponentInstanceOfType(CommentManager.class);
          String comment = "Moving to *new status* status as a result of the *this transition* action being applied to the parent.";
          commentManager.create(it, currentUser, comment, true);
          workflowTransitionUtil.validate();
          workflowTransitionUtil.progress();
        }
     }
}