Modifying custom label type field in behavior

[Danil Ivanov]

Hi!

I need to create linked issue of type B based on source issue of type A (both of them in the same project). 

I decide to do this using ScriptRunner "Constrained create issue dialog" and "Behaviors" and not by workflow transition and post-script function cause I need to give end user the ability to change some values before linked issue's creation.

Some issue fields in both types are the same and should be pre-filled before using initialiser.

But now I stuck at label-type custom field. There is two the same label CF in type A issue and type B issue.

import com.atlassian.jira.ComponentManager
import com.atlassian.jira.issue.CustomFieldManager
import com.atlassian.jira.issue.Issue
import com.atlassian.jira.issue.IssueManager
import com.atlassian.jira.issue.customfields.manager.OptionsManager
import com.atlassian.jira.issue.fields.CustomField
import com.atlassian.jira.issue.label.Label
import com.atlassian.jira.issue.label.LabelManager
import java.sql.Timestamp

IssueManager issueManager = ComponentManager.getComponentInstanceOfType(IssueManager)
Issue originalIssue = issueManager.getIssueObject(getContextIssueId())
CustomFieldManager customFieldManager = ComponentManager.getComponentInstanceOfType(CustomFieldManager)
OptionsManager optionsManager = ComponentManager.getComponentInstanceOfType(OptionsManager)

LabelManager labelManager = ComponentManager.getComponentInstanceOfType(LabelManager)



if (getBehaviourContextId() == "bankiru-create-media-issue") {
    CustomField customField
    def config
    def options
    Set<Label> z = []

    // Summary
    getFieldById("summary").setFormValue(originalIssue.getSummary())
    getFieldById("summary").setReadOnly(true)

    // IssueType
    getFieldById("issuetype-field").setReadOnly(true)

    // Project
    getFieldById("project-field").setReadOnly(true)

    List<CustomField> originalCustomFields = customFieldManager.getCustomFieldObjects(originalIssue)



    originalCustomFields.each { cf ->
        def parentValue = cf.getValue(originalIssue)

        if (!parentValue || !getFieldById(cf.id)) return

        if (parentValue instanceof  String) {
            getFieldById(cf.id).setFormValue(parentValue)
            return
        }

        /*

        some code here...

        */
        
        if (cf.customFieldType.name == "Labels") {
            parentValue.each {
                getFieldById(cf.id).setFormValue(it.label)
            }
            getFieldById(cf.id).setFormValue(z)
        }

    }


    getFieldById("issuelinks-linktype").setFormValue("blocks").setReadOnly(true)
    getFieldById("issuelinks-issues").setFormValue(originalIssue.key).setReadOnly(true)
}

No errors, no warnings... Just don't work. There's no porblems with other field types, only with this label field.

Any suggestions?

Jira 7.4.1, ScriptRunner 5.5.9