Sum of custom field from all the linked child stories to a field in parent story

[Swapnil Tiwari]

Consider below scenario -

I have field in story - "Field_1"

I have created link - Outward Description > is parent of

Inward Description > is child of

Now,

I want to sum up the values from all the child stories to parent story.

(We can have a scripted field configured to carry the sum of the values. Let that field be Field_2)

Eg- 

I have a parent story AB-123

I have three child stories linked to AB-123, let that be AB-124, AB-125, and AB126.

I want to sum the value of Field_1 of all the child stories to Field_2 of the parent story.

Can anyone help me out.

[Nic Brough -Adaptavist-]

You say you have a "scripted field" for field_2. 

That means you have a scripting add-on and you should be able to create another scripted field for "read all subtasks for the data of field 2 and place it in field 1 on the parent".  It should be able to do simply issue.getSubtasks() to get the list.

[Swapnil Tiwari]

Hi Nic,

I want to have those fields on story.

I do not want to use subtasks.

Thank you

[Nic Brough -Adaptavist-]

Ah, sorry, you talked about "child" issues, which means "sub-task" in JIRA-speak.  I didn't realise you meant issue-links, so there's no child relationship.

You'll need issue.getOutwardIssueLink() instead of subtasks.

[Swapnil Tiwari]

Can you help me with the complete expression which  I should use?

[Nic Brough -Adaptavist-]

Sorry, yes, that issue.<function> is wrong.

How you get the list of links is highly dependent on where you are in JIRA, but you'll probably end up needing to use an issueLinkManager - see https://docs.atlassian.com/jira/7.3.8/com/atlassian/jira/issue/link/IssueLinkManager.html