How to link issue to project automatic with scriptrunner

[Pablo Rodriguez]

I would like to automatically create link issue to the parent project when is created or a script to get all issues and create the link.

//Import classes you need
import com.atlassian.jira.ComponentAccessor;
import com.atlassian.jira.issue.Issue;
import com.atlassian.jira.issue.CustomFieldManager;
import com.atlassian.jira.issue.MutableIssue;
import com.atlassian.jira.issue.IssueManager;
import com.atlassian.jira.component.ComponentAccessor;
import com.atlassian.jira.user.ApplicationUser;
import com.atlassian.jira.security.JiraAuthenticationContext;
import com.atlassian.jira.issue.fields.CustomField;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

// Get some additional information you typically need like current user
JiraAuthenticationContext userMgr = ComponentAccessor.getJiraAuthenticationContext();
ApplicationUser currentUserObj = userMgr.getLoggedInUser();

//Get an IssueManager. you always need one of those.
IssueManager issueMgr = ComponentAccessor.getIssueManager();
CustomFieldManager fieldmgr = ComponentAccessor.getCustomFieldManager();
MutableIssue issue = issueMgr.getIssueObject("TEST-2") // this is just an example key

//Print stuff. Just assuming you are playing around/learning in the Scriptrunner console.
log.error "";
log.error "The current user is " + currentUserObj.name;
log.error "The current issue ID is " + issue.id;
log.error "The current issue key is " + issue.key;
log.error "The current issue key is " + issue.getProjectId()

I have the issue.id and the projectId, But i don't know how connect.

Thanks

[Nic Brough -Adaptavist-]

Have a look at https://library.adaptavist.com/entity/create-a-backdated-issue - it does some work with dates as well as creating an issue.