[horde] Problem dismissing Horde events with Lightning

[Jan Schneider]

Zitat von Heiko Schellhorn <schell at iup.physik.uni-bremen.de>:

> Hi
>
> short time ago we upgraded our Horde from 3.3.9 to 5.0.4.
> New server, new installation, migrated old DB.
>
> So far everything worked fine but we face one problem.
>
> The Horde-Calendar is embedded in Thunderbird/Lightning as remote  
> calendar via https://servername/rpc.php/kronolith/user/user.ics
>
> If we now have an event with alarm and the reminder in Lightning  
> comes up and is dismissed, after some time the reminder comes up  
> again and again. It harasses until you e.g. edit the event and  
> disable the alarm.
>
> Yes... The remote calendar is writable.
>
> If we observe the horde-db we can see the new event with alarm in  
> table horde_alarms with field alarm_dismissed set to 0.
> After the event came up in Lightning and got dismissed  
> alarm_dismissed changes to 1 and the entry in horde_alarms  
> disappears anytime later.
> And event_alarm_methods in kronolith_events changes to N; (is N; correct?)
>
> But unfortunately sometimes later the alarm comes up in lightning  
> again and the entry in horde_alarm appears again. But this time  
> instantly with alarm_dismissed set to 1.
>
> With version 3.3.x we didn't see this issue.
> We also compared two entries with alarm in kronolith_events written  
> with old horde and new horde and have seen that the field  
> alarm_method from dismissed events of old horde is set to NULL and  
> new horde set it to N;
>
> Comparison of two events in the ics-backup in thunderbird folder  
> brought no news both entries have the same syntax.
>
> I'm not quite sure if it's a problem with Lightning ?
> Some forum-entries found concerning Lightning dismissal mostly deal  
> with different issues or show workarounds to get rid of the  
> harassing reminders but no real solution.
>
> Or is it a problem with horde maybe caused by the schema update  
> during upgrade ? (we also ran convert-to-utc)
>
> Any ideas where to put the screwdriver to fix it ?

How does the exported (from Horde to iCalendar) event look like?
-- 
Jan Schneider
The Horde Project
http://www.horde.org/