Condition or Validator to check specific sub-tasks

[hkenny]

Hi,

In our instance, a story can have various sub-tasks but will always have a 'QA Task' sub-task. I need to use ScriptRunner to block a specific transition if any sub-tasks are not closed excluding the 'QA Task' sub-task.

I referenced this first example in the documentation with some tweaks, but to no avail (it seems 'passesCondition' is not valid: https://scriptrunner.adaptavist.com/6.4.0-p5/jira/recipes/workflow/conditions/all-subtasks-resolved.html

Can anyone help with producing a simple script that will block the transition (preferably using a validator) unless all sub-tasks except QA Task are closed?

Many thanks,

Howard