Display the Projected Due Date

Scenario

You require a field that displays the projected due date for an issue based on its priority; the due date is calculated using values within the script that add a number of days, skipping weekends (Saturday and Sunday), to the date the issue was created.

Resolution

This solution uses the Scripted Datetime custom field type which uses the issue’s Priority value to automatically calculate a due date. It adds a specific number of days to the issue's Create Date value. The custom field is also configured to use the Priority value as a dependency - if that value is changed, the custom field will automatically be recalculated!

Steps to Create

1. Create a Scripted datetime 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. In the upper right corner click New custom field.

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

6. Select Scripted datetime and click Next.

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

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

   1. In the script editor, enter the following:

      // Creates a Date object from a date string plus some number of days (exclude weekends) function date(from, nod) { let c1 = new Date(from); let weeks = Math.floor(nod / 5); let remDays = nod % 5; // Adding whole weeks c1.setDate(c1.getDate() + weeks * 7); // Run a loop and check each day to skip a weekend for (let i = 1; i <= remDays; i++) { c1.setDate(c1.getDate() + 1); while (c1.getDay() === 6 || c1.getDay() === 0) { // 6 is Saturday, 0 is Sunday c1.setDate(c1.getDate() + 1); } } // Skip ending weekend while (c1.getDay() === 6 || c1.getDay() === 0) { c1.setDate(c1.getDate() + 1); } // move to 0:00 c1.setHours(0, 0, 0, 0); return c1; } // extract the created and priority fields from the issue const from = await api.issue.getField(issue, "created") const priorityObj = await api.issue.getField(issue, "priority") const priority = priorityObj?.name console.log('created on: ', from) console.log('priority: ', priority) // Add some number of days to the created date based on the priority switch (priority) { case "Highest": case "High": return date(from, 2); case "Medium": return date(from, 4); case "Low": case "Lowest": default: return date(from, 5); }

   2. In the Dependencies on other fields field, select Sprint.

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

10. Click Save.

2. Configure Custom Field Context (Optional)

When a custom field is created, it is added to the selected screens, but it is also added to every issue type and every project. If a custom field should only be added to specific issue types and/or projects, you need to edit the custom field context.

1. Open the custom field configuration:

   1. From the My Custom Fields page, click the Contexts link for the new custom field.

   2. Through the native Jira menus:

      1. In the upper right corner of the Jira window, click Settings ( ) and select Issues.

      2. In the left-hand panel, click Custom fields.

      3. Locate your new custom field in the list and click Action at the far right. Select Contexts and default value.

2. Update the context for your custom field as necessary:

   1. To add a new context, click Add new context.

   2. To update the existing context, click Edit context or Edit Configuration.

   3. For specific steps on modifying contexts, see this page: Edit a custom field context | Atlassian Support