How can I block a story epic link by a CF in epic?

[Valeria Cruz]

How can I block a story epic link by a CF in epic?

This validation needs to be in issue creation

for example
an issue type Story can only have a epic link if this epic has the custom field 1 = abc

[Leo · Accepted solution]

Hi @Valeria Cruz,

Below script may give you some idea/reference. I haven't tried this my workflow though, it may require some minor changes 

Try adding in Custom Script Validator in create transition

import com.atlassian.jira.ComponentManager;
import com.atlassian.jira.component.ComponentAccessor;
import com.atlassian.jira.issue.CustomFieldManager;
import com.atlassian.jira.issue.IssueManager;
import com.atlassian.jira.issue.Issue; 
import com.atlassian.jira.component.ComponentAccessor
import com.opensymphony.workflow.InvalidInputException

def issueManager = ComponentAccessor.issueManager
def epicLink = ComponentAccessor.customFieldManager.getCustomFieldObjectByName("Epic Link")

def epic = issue.getCustomFieldValue(epicLink) as String

if(epic){
    def issueE = issueManager.getIssueObject(epic);
    def cf = ComponentAccessor.customFieldManager.getCustomFieldObjectByName("Custom Field")
    def cfValue = issueE.getCustomFieldValue(cf) as String
    if(cfValue == "abc"){
        return true
    }  
    else{
        throw new InvalidInputException("Invalid Epic Association")
    }
}

 BR,

Leo

[Valeria Cruz]

Tks Leo, its working!!

but I need to validate the fields empty too. 'cause we can create story without a epic link too

I'm trying to use 

else if(epic == null ){

return true

but doesn't worked

[Leo]

Hey, if you notice my script I already did a validation for epic is empty or not

if there is Epic it does enters for field validation if not. it won't. 

I just missed to add Else part in the bottom. below may fix your issue

if(epic){

  //code written already for field validation if epic mapped

}else{

   return true // if issue created without epic

}

BR,

Leo