How to get assignee change history?

[Samuel Lee]

New issue has the assignee field set to "automatic" for default value. How can I obtain the "assign date" value for usage as a value in a scriptrunner(scripted field) to track when time is changed.

[Samuel Lee]

Thank Jamie. I found an example and I am able to get the assignee change history with the following scripts.

import com.atlassian.jira.issue.*
import com.atlassian.jira.issue.fields.CustomField
import com.atlassian.core.util.DateUtils 
import com.atlassian.jira.ComponentManager 
import com.atlassian.jira.issue.history.ChangeItemBean 

def componentManager = ComponentManager.getInstance();
def changeHistoryManager = componentManager.getChangeHistoryManager();

def changeItems = changeHistoryManager.getChangeItemsForField(issue, "assignee");
def firstAssigned;
if(changeItems !=null && !changeItems.isEmpty()){
	ChangeItemBean ci = (ChangeItemBean) changeItems.get(0);
	String assigneeName = ci.getFrom(); // name
	String assigneeFullName = ci.getFromString();// full name
        def assignedTime = ci.getCreated().getTime();
        firstAssigned = assignedTime;

}

[Mario Ofner]

Is there a possibility to get the user who did the transition?

[ernesto_laing@avivacanada.com]

I also would be very interested

[j2166730]

this is who did last update issue

def changeItems = changeHistoryManager.getChangeHistories(issue);
return changeItems.get(changeItems.size()-1).getUsername()

getUsername() Deprecated.  Use getAuthorObject() instead. Since v5.0.  

[JamieA]

You need to use com.atlassian.jira.issue.changehistory.ChangeHistoryManager. Google on that, you should find some examples.