Jam.py documentation


on_before_open(item, params)

domain: client

language: javascript

class Item class


Occurs before an application sends a request to the server for obtaining a dataset.

The item parameter is an item that triggered the event.

The params parameter is an object that has been passed to the open method or an empty object if this object is undefined. This object is passed to the server and can be used in the on_open event handler to perform some actions when obtaining a dataset

Write an on_before_open event handler to take specific action immediately before an application obtains an dataset from the server.

on_before_open is called by open method.

See also