Display all sub-tasks assignees

Scenario

You require a field that displays all team members working on sub-tasks for a Story.

Resolution

This solution uses the Scripted User Collection custom field type to create a field on Story issues that displays a user badge for any team member assigned to one of the Story’s sub-tasks. This field could also be modified to display all assignees to Stories related to an Epic, or expanded to display all team members working on any issue related to an Epic!

Follow the Steps

1. Create a Scripted user collection custom field

1. Log into your Jira instance as an Administrator.

2. In the upper right corner of the window, click Settings ( ) and select Apps.

3. In the left-hand sidebar, click Jira Misc Custom Fields.

4. Click My custom fields and in the upper right corner click New custom field.

5. Enter a name for your custom field and, optionally, a description.

6. Select Scripted user collection and click Next.

7. Select the projects and issue types to which the custom field should be added. For this example, we are only going to select Story under Issue types.

8. Click Next.

9. Select the screens to which the new custom field should be added. Click Next.

10. Configure the field (Figure 1, right):

    1. In the script editor, enter the following:

       // get child issues for the current issue const childIssues = await api.issue.getChildIssues(issue) // get relevant fields const childFields = await Promise.all(childIssues.map(async childIssue => await api.issue.getFields(childIssue, ["issuetype",'assignee']))) const assignees = childFields.reduce((acc, fields) => { const {issuetype, assignee} = fields //only run for subtasks that have an assignee if (issuetype.subtask && assignee) { acc.push(assignee.accountId) } return acc },[]) // remove duplicates so each user only displays once const final = [...new Set(assignees)] return final

11. Optionally, you can test the results of the script by entering an issue ID in the Test with issue field and clicking Test.

12. Click Save.