Script Runner get and calculate Values from Issues linked to Epic

[Daniela Scheiwe]

Hi, I have Epics and "normal" issues with custom fields that hold some numbers,

I want to add another custom field to the epic that shows a calculated value based on values from the epic and its linked issues. 

I do know how to do the calculation, but I can't figure out how to get the list of linked (through epic link!) issues.

All I found was either using the normal issuelinks function or some old greenhopper code.

Any help with that?

In short, I need

-Get all tasks with epic-link = currentTask
-Get customFieldValue1 from these tasks
-Calculate against customFieldValue1 from currentTask
-Store result to customField2 in currentTask

[Tarun Sapra]

You can use searchService class - https://developer.atlassian.com/static/javadoc/jira/latest/reference/com/atlassian/jira/bc/issue/search/SearchService.html 

You can supply a JQL query as a parameter for the method  - parseQuery(ApplicationUser searcher, String query)

Once you get the parseResult Object, you cna get the query() and invoke the method-

search(ApplicationUser searcher, Query query, PagerFilter pager)

This will return the issues which satisfy the original jql search query - "Epic Link" = "XYZ-123" thus you will now have list of issues with the epic link as the epic key and the epic itself.

[Tarun Sapra]

And once you have all the issue objects then you can easily fetch the values of the  fields and do the calculation whcih you want.