[prev in list] [next in list] [prev in thread] [next in thread] 

List:       kde-pim
Subject:    Re: [Kde-pim] RFC libksync
From:       Cornelius Schumacher <schumacher () kde ! org>
Date:       2002-05-29 13:41:40
[Download RAW message or body]

On Thursday 23 May 2002 00:13, Holger Freyther wrote:
> Am Wednesday 22 May 2002 23:36 schrieb Cornelius Schumacher:
>
> > > it should include all necessary metainformations( id
> > > replacement )
> >
> > You can't replace ids. If an entry has an id, syncing musn't alter
> > it. Otherwise things like group scheduling get broken.
>
> In cases of Opie uids you may alter it. Group scheduling isn't a
> problem. Could you explain it a bit more.

In vCalendar and iCalendar the unique id is required to be globally 
unique and musn't be changed after an event has been created. This 
allows to identify events even across systems and after sending via 
email.

For group scheduling the id is used to associate events with reponses to 
scheduling messages. E.g. if you send a proposal for a meeting to some 
people and you get back a counterporposal or a confirmation, it's 
possible to associate the response with the original request.

I believe that no syncing code should rely on being able to change the 
id or to store extra information in the synced entries in any other 
way, because this will break if there are restrictions on the synccees 
side that don't allow that.

-- 
Cornelius Schumacher <schumacher@kde.org>
_______________________________________________
kde-pim mailing list
kde-pim@mail.kde.org
http://mail.kde.org/mailman/listinfo/kde-pim
kde-pim home page at http://pim.kde.org/
[prev in list] [next in list] [prev in thread] [next in thread]