[Bug 233671] Only syncs one of several google calendars connected to the same account

[Ingo Ratsdorf]

https://bugs.kde.org/show_bug.cgi?id=233671





--- Comment #12 from Ingo Ratsdorf <ingo envirology co nz>  2011-04-09 22:16:39 ---
My previous comment #10 was related to the quoted comment #9 about calDAV.

Please note that there are two ways of connecting to google calendars:

1) via gdata akonadi resource
Has exactly the restriction as described in this whole thread: It can only sunc
with the primary calendar, not with secondary ones. This is due to the design
of the gadata resource and could relatively easily changed by changing the
login method, as done in Mozilla Thunderbird gdata plugin.
Please also see my comment #2 and #3.

2) Via caldav akonadi resource
COULD sync with google when google would comply with their implementation of
caldav, as stated in my comment #10. Since the akonadi groupdav resource uss
caldav filters to filter incidences from the collections, which google does not
fully support, loss of data occurred - at least in the past. The resource would
get the collection returned from google instead just "the" element and would
delete the first element in the collection, ie the oldest one.
Furthermore, there is a bug in the kdepim libs that prevents receiving updates,
a bug that will be fixed in 4.6.2 as far as i know.
Since I have moved successfully away from google, I can not comment on any
existing caldav rtesources for akonadi and whether they would work with google.

But be warned: googles implementation of caldav is not standard compliant in
many ways and there is a STRING POSSIBILITY OF LOSING DATA.
Unless you use method 1) of course.

Suggest you try out working opensource caldav implementations like daviCal
(requires root server, PHP and postgres), egroupware (runs on shared server
with PHP and various databases) or the lightweight version SabreDAV (PHP and
various datbases).

I have an egroupware installation running that successfully syncs with
Thunderbird, Akonadi and iPhone.

Cheers,
Ingo

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