Jam.py documentation


on_before_apply(item, params)

domain: client

language: javascript

class Item class


Occurs before an application saves dataset changes to the project database.

The item parameter is an item that triggered the event.

The params parameter is an object that has been passed to the apply method or an empty object if this object is undefined. This object is passed to the server and can be used in the on_apply event handler to perform some actions when saving changes to the database.

Write an on_before_apply event handler to take specific action immediately before an application saves the change log to the project database.

on_before_apply is triggered by apply method.