Re: [ietf-caldav] draft-daboo-webdav-sync-01

[Roberto Polli <[e-mail]>]

On martedì 10 marzo 2009 15:50:29 you wrote:
> Note that the current spec is a generic webdav spec.
you mean the target is about fasten webdav sync and not caldav one?

> You want to get deleted items separately from other changes?
yes. I know the issue is quite complex. Afaik sync process needs at least 3 
methods:
1- get new items since last sync
2- get updated items since last sync
3- get deleted items since last sync

> For CalDAV we would
> need to write an extension that would allow a time-range to be included in
> the report
I miss the point:
* as of now we can find events by time-range with caldav for queries 1) and 2) 
using CREATED|LAST-MOD
* as we lack a method for 3) we're forced to use etags mapping (and storing a 
table on database with a history between syncs), thus retrieving all events 
and retrieve deleted items by difference of sets (stored - retrieved).
* retrieving deleted items directly from server will (partially) solve that 
issue.. 

I wish this mail is not too confuse.

Hope it helps+Peace,
R.

-- 

Roberto Polli
Babel S.r.l. - http://www.babel.it
Tel. [phone] - fax [phone]
P.zza S.Benedetto da Norcia, 33 - 00040 Pomezia (Roma)

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