How to I set a custom field's value to the latest comment?

[Randy]

I'm trying to store the latest comment in a custom field so that I can easily surface it in confluence.  I'm on JIRA Cloud with SR.

How would I get the latest comment in an issue so that i can set it to a custom field in my ScriptRunner Listener that runs on Create and Update?

[Randy · Accepted solution]

Thanks for the solution Vasiliy

Since I'm on Cloud, I had to go through the API.

To retrieve i used this call: /rest/api/2/issue/${issue.key}/comment

[Mark Crocker]

Can you elaborate how you did this?

[Thomas Opiolka - codefortynine]

To get first or last comments (and more comment related fields) as a synchronised custom field you can also use the cloud App Comment Custom Fields for Jira.

The fields build at installation and will stay in sync from then on.

The answer is a bit late, but maybe someone else needs an easy scriptless solution

Disclaimer: I'm the product manager of said App.

[Vasiliy Zverev]

You could use script field. Here is code to get last comment (test it before use):

import com.atlassian.jira.issue.Issue
import com.atlassian.jira.issue.comments.Comment
import com.atlassian.jira.issue.comments.CommentManager

Issue issue

CommentManager commentManager ;
List<Comment> commentList = commentManager.getComments(issue)

if(commentList.size() == 0)
    return null

commentList.sort(new Comparator<Comment>() {
    @Override
    int compare(Comment o1, Comment o2) {
        if(o1.getCreated().before(o2.getCreated())) return -1
        else return 1
    }
})

return commentList.get(0).getBody()