[sync] HordeSync with SonyEricsson W800i and Thunderbird remote calendar

[Jan Schneider]

Zitat von Anders Tietze <hordesync at dk-tietze.dk>:

> Jan Schneider wrote:
>> Zitat von Anders Tietze <hordesync at dk-tietze.dk>:
>>
>>>
>>>
>>> Jan Schneider wrote:
>>>> Zitat von Anders Tietze <hordesync at dk-tietze.dk>:
>>>>
>>>>> Hi everybody,
>>>>>
>>>>> I am using Horde SyncML to sync contacts and calendar with my  
>>>>> SonyEricsson W800i and it works fine, but I have found a problem  
>>>>> with calendar sync.
>>>>>
>>>>> From my desktop PC I use remote calendar via  
>>>>> Thunderbird+Lightning and the horde webdav interface  
>>>>> (http://hostname/horde/rpc.php/kronolith/horde_login_name.ics)  
>>>>> which works fine.
>>>>
>>>> Do you mean with the WebDAV patch from bugs.horde.org?
>>>
>>> I'm not sure which patch you are talking about. I'm just using the  
>>> CVS HEAD.
>>
>> Sorry, I didn't look at the path closely enough, I thought you were  
>> trying to use horde/kronolith/ics.php.
>>
>>>>> If I make a new calendar item from Thunderbird, I get all  
>>>>> previous calendar items repeated in my W800 calendar the next  
>>>>> time I do a sync, even if the Horde calendar does not contain  
>>>>> repeated items. This error does not occur if I add a new  
>>>>> calendar item via the Horde calendar.
>>>>
>>>> That's the backdraft of how Thunderbird uses WebDAV. It replaces  
>>>> *all* events when saving to the calendar, thus they will appear  
>>>> as new events in Kronolith and get synched again. At least if  
>>>> that is what you are talking about.
>>>
>>> The problem is that the events is not marked as updated (I  
>>> assume), but as new ones and therefore I get new events in my  
>>> phone calendar (the phone keeps the old ones).
>>>
>>> Isn't it possible to compare the calendar events from the WebDAV  
>>> interface to the actual one in the Kronolith database and from  
>>> that only update the events that has changed?
>>
>> Unfortunately not, there is nothing like an event diff that allows  
>> to determine only the changed events and update them. Thus we need  
>> to delete all events first and the import the events sent from the  
>> calendar client. OTOH, this should happen too when synching the  
>> event to the phone, so maybe it's a bug in the synching code.
>
> Is there anything I can do to help solving this issue?

Rewrite the _kronolith_put() function to not delete the complete  
calendar before re-importing the data from the client. See also  
http://bugs.horde.org/ticket/?id=3032.

Jan.

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