Implementing Folder-like Structure with Limited Visible Records in Frappe

1

I’m trying to replicate a folder-like structure within Frappe, where only the latest 3 records are visible at any given time. Any new records exceeding this limit should be automatically moved to a backup location (another doctype).

Background:
In a shell script, I’ve successfully implemented this behavior with a backup folder and file. Essentially, when a 4th folder is created, the oldest one is moved to the backup. I’d like to achieve the same within Frappe, but I’m not sure about the best approach.

2

Can you describe your use case a bit? Designating a separate custom doctype as a backup “location” sounds like a very un-Frappe design pattern. I think there’s probably a much better way to accomplish what you’re trying to do.

That said, this would be fairly trivial to implement using a Server Script triggered either on Insert or on Submit. Just query the doctype list, see how man documents you have, and copy/delete if there are more than three.