all our managers have set/checked the setting "a player calendar has changed from group: ALL" so they get an email when a user changed his own calendar.
Now there is a manager on our club, which edit the days for all users from the past (to correct the absences and so on). Now these corrections generate email notifications to all other managers (which aren't necessary because only the new absences in the future are relevant for them).
So can you give me some hints where I have to change the code in order to disable the notification emails when the set absence(s) was in the past?
(a new checkbox right to that setting in the editprofile page would be nice for example "only send notifications for future absences" (or don't send notifications which were oriented to the past" or somthing like that)