Link Issues with ScriptRunner

dD_fzic1p

Hello,

in my project I use 2 different issue types. The issues of both types can have the same assignee. Hence my goal is to link the all issues from the issuetype A to an issue of the issuetype B, if the assignee is the same (and some other conditions - but it doesnt matter for this question). In the ideal case I would have a list for my issues from the issuetype B, where all the respecive issues from the issuetype A are named. 

Later on I would also like to get a customfield value displayed from the linked issues as well. So e.g. the customfield is costs. And all issues from the issuetype A are materials, I would like to display all names of the materials and the respective cost  values on the issues from the issuetype B. So in a next step I could go ahead and count al the costs together and safe this result in a new customfield for the issues of the issuetype B.

Is this possible and how would I best start? I tried with Fields --> Issue(s)Picker but I couldnt even configure a jql that searches for issues with 

assignee = {{assignee.displayName}} 

 looking forward for your suggestions

Nic Brough -Adaptavist-

I think https://library.adaptavist.com/entity/add-or-update-the-issue-link-for-an-issue-in-jira probably gives you example code for working with issue links

Then this one can show you how to go over and look at all linked issues - https://library.adaptavist.com/entity/calculate-the-sum-of-all-values-of-a-custom-field-in-linked-issues (obviously, dump the "sum" bit in favour of your code to do what you need with the custom field you find, although it might help with "summing the cost" later)