[Kde-pim] Investigating DAV ressource issues with cancelled events

[Philipp Schmidt]

Hi all,

as KOrganizer is now capable of (or rather: not) displaying Events that 
have an exception event with STATUS=CANCELLED (See Bug 282591) I now 
investigated why the behaviour for carddav-calendars is still very 
different to that of the ical-ressource. Some things I have already 
mentioned in the corresponding Bug 296489, some more I wish to comment 
and elaborate on here.

First the setting: An OwnCloud server 4.5.x. When Cancelling an event 
recurrence (Using an additional event with STATUS=CANCELLED) the 
corresponding, additional event is stored in the same ics-file as the 
original event. So now the ics for said event has 2 VEVENT sections, one 
for the exception (first VEVENT) and the actual recurring event (second 
VEVENT).

The behaviour that I have noticed and confirmed in the source (assuming 
that my understanding is correct) is that the DAV-ressource assumes that 
only 1 VEVENT shall be present in the ics provided by the carddav-server 
(in my case owncloud 4.5, I have no possibility to check with others). 
(See kdepim-runtime/resources/dav/common/davitemsfetchjob.cpp line 140 
and others, refers to dataElement.firstChild() or firstChildElementNS() 
only)

The result in my case is that only the CANCELLED VEVENT is inserted into 
the akonadi DB, which on the other hand is contradictory to the 
firstChild() theory, as the ics downloaded from the server contains the 
cancelled VEVENT after the original. But the fact remains that only one 
VEVENT seems to be processed.

Now as the ics resource creates separate items in the DB for the 
original event and every cancelled recurrence in the file the same 
should happen with the carddav-ressource.

I hope someone can look into this and confirm my suspicions and 
hopefully fix this before the 4.11 release so that events that contain 
cancelled recurrences (created using for example android phones or 
thunderbird on the server) can finally be displayed correctly under 
korganizer.

Cheers,
Philipp
_______________________________________________
KDE PIM mailing list kde-pim at kde.org
https://mail.kde.org/mailman/listinfo/kde-pim
KDE PIM home page at http://pim.kde.org/