Copy system field values to custom in bulk?

[TSD Group]

There is a built-in script which allows to copy custom field values from one field to another in bulk. Is there the same possibility to copy values from system field to custom? E.g. from Due to DateCustomField ?

[Vasiliy Zverev]

Here is a code example:

import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.event.type.EventDispatchOption
import com.atlassian.jira.issue.CustomFieldManager
import com.atlassian.jira.issue.IssueManager
import com.atlassian.jira.issue.MutableIssue
import com.atlassian.jira.issue.fields.CustomField
import com.atlassian.jira.project.Project

/**
 * Move date value from one custom field to another
 */

CustomFieldManager customFieldManager = ComponentAccessor.getCustomFieldManager();
CustomField dateFrom = customFieldManager.getCustomFieldObjectByName("field name 1");
if(dateFrom == null)
    return "field for date from not found"

CustomField dateTo = customFieldManager.getCustomFieldObjectByName("field name 2");
if(dateFrom == null)
    return "field for date from not found"

//Loop issues and update
IssueManager issueManager = ComponentAccessor.getIssueManager();
for(Project project: ComponentAccessor.getProjectManager().getProjectObjects())
    for(MutableIssue issue: issueManager.getIssueObjects( issueManager.getIssueIdsForProject())){
        issue.setCustomFieldValue(dateTo, issue.getCustomFieldValue(dateFrom))
        issue.setCustomFieldValue(dateTo, issue.getDueDate()) //if you want to copy from due
        issueManager.updateIssue(ComponentAccessor.getJiraAuthenticationContext().getUser().getDirectoryUser(), issue, EventDispatchOption.ISSUE_UPDATED, false)
    }

[TSD Group]

Hi Vasiliy,
Thank you for the answer! Sorry I am late with my reply.
Do I need to copy your example of a code, then paste it into the Script Console and click the Run button?
I just never did this operation.

With kind regards
Vyacheslav

[Vasiliy Zverev]

1. Test it on test JIRA instance.
2. Yes, you need just to cope it to a script console
3. Try also to perfom it at first not on all project/issues, but only on sigle peoject/issue
4. Good luck!

I see you are novice, since ask more questions here.