checking if change tasks have been approved before requesting approval for a change request

[donatello]

I am trying to write a business rule to check all change tickets to make sure that they have been approved before a change can be placed into pending or "requested for approval"". my script is not working for some reason and I would love if the community would help me out. Thanks in advance

function onBefore(current, previous) {
   checkChildTasks();
function checkChildTasks() {
       var grChild = new GlideRecord("change_task");
       grChild.addQuery('change_request', current.sys_id);
       grChild.addQuery('Approval',"CONTAINS","approved");
       grChild.query();
while(grChild.next()){   
       if (grChild.result == "approved" || grChild.result == "skipped")
       answer = true;   
       else{   
       answer = false;   
       return;   
   }   
   }   
}   
} 

[donatello]

here is the screen shot thanks

[Abhinay Erra]

Is this a before business rule and did you check the insert and update checkboxes? Which release are you on?

[donatello]

yes I did here is the snapshot

[Akshya]

Hi Donatello, were you able to find a solution for this requirement?

Thanks,

Akshya