Prevent Recursive loop script

[Pat Surtan]

Hello,

There is a parent/child feature in Incident Management where a record can be added to an incident as that incident's parent record. If the parent record has been added, that same record cannot be added as a child. This is a OOTB recursive script.

I want to create this same feature to prevent recursive loop in my custom table. Can someone provide a script for me to use? I found the OOTB script, modified it but it doesn't work. No errors and I can add one ticket as both the parent and a child, which isn't correct. 

Here is the OOTB script I modified.

var rt = new RecursionTester('u_additional_info', 'u_parent_info');
if (rt.isRecursive(current)) {
current.setAbortAction(true);
current.u_parent_info.setError(gs.getMessage('Invalid Parent Info'));
gs.addErrorMessage(gs.getMessage('The selected Parent Info loops back to this record (recursive sdq ticket loop)'));
}

Thanks in advance. 

[Mike_R]

Your script looks fine and I compared it to several other OOTB business rules.

Stupid question, but can you confirm these settings on your business rule

[Pat Surtan]

Yes, it matches your screenshot.

when: before

Insert: true

Update: true

I'm not sure why it isn't working. 

[Mike_R]

I'm at a loss. I would suggest opening a case with support in the meantime.

If i think of anything else i will post here.

[Pat Surtan]

Hi Mike,

Thank you for helping out. Is there any other script I might have overlooked and that is why it isn't working?