Parameters:
scheduler.attachEvent("onBeforeEventChanged", function(event_object, native_event, is_new){ //any custom logic here return true; });
Event occurs when new “event” was added or existing one changed, by drag-n-drop action.
Beware that parameter of event is “event” object, not “event” id ( because newly created events may not have ID yet )
Event is blockable, returning false from handler will prevent data update.