Simple Scripted Validator for "Parent Link"

[Julia]

I want to write a groovy simple scripted expression to check on issue creation if the "Parent Link" field on an Epic is filled out during the CREATE screen... I can't figure out how to access that field. 

I know that "parent" in issue.ParentObject for example is only referencing the parent of a subtask so I am stuck on how to access the "Parent Link" on an Epic. 

This is just an example of what I want to write. How do I write this to say "Parent Link is not EMPTY

issue.resolution.name != "Fixed"

[Alex Koxaras _Relational_]

Hi @Julia 

Parent Link is a field reserved for Portfolio for Jira. If you add this field on a screen, and you don't have it you will get a message like the following:

Portfolio for Jira must be licensed for the parent link to be available.

If however you have Portfolio for Jira, then a script like:

issue.customfield_12345.value != null

Where 12345 is the id of the parent link on your instance.

[Julia]

This is the error I get when I try that 

[Alex Koxaras _Relational_]

@Julia write the following

issue.customfield_14201.key != null

and don't mind if the line is red. I've tried it on my instance and works fine. Test it and let me know if that works.