[Tickets #8814] Task completion from kcal isn't properly transmitted

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Ticket URL: http://bugs.horde.org/ticket/8814
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  Ticket             | 8814
  Created By         | felix.leimbach at gmx.net
  Summary            | Task completion from kcal isn't properly transmitted
  Queue              | Nag
  Version            | 2.3.4
  Type               | Bug
  State              | Unconfirmed
  Priority           | 2. Medium
  Milestone          |
  Patch              |
  Owners             |
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felix.leimbach at gmx.net (2010-01-03 12:46) wrote:

(This bug was also mentioned in bug 8644)

I'm using KDE SC's kontact with a remote calendar pointing to my horde  
installation:
https://my.host/rpc.php/nag/emailadress/emailaddress.ics

However, when I mark a task in kontact as completed it does NOT show  
up completed in horde.
The other way around (marking as completed in horde) DOES show up as  
completed in kontact.

I've collected samples of a VTODO which was completed in horde and one  
which was completed in kontact.

VTODO from horde (this correctly shows up as completed in horde and kontact)
======================
BEGIN:VTODO
UID:20100103173616.83443vd8r6emqe0w at mail.some.host
SUMMARY:This is a test VTODO (created from horde)
PRIORITY:3
STATUS:COMPLETED
COMPLETED:20100103T163635Z
CREATED:20100103T163616Z
LAST-MODIFIED:20100103T163616Z
END:VTODO

And this is the problematic VTODO completed in kcal:
======================
BEGIN:VTODO
DTSTAMP:20100103T163919Z
ORGANIZER;CN="Felix Leimbach":MAILTO:x at y.z
CREATED:20100103T163849Z
UID:libkcal-1556699273.854
SEQUENCE:1
LAST-MODIFIED:20100103T163902Z
SUMMARY:This is a test VTODO (kcal)
PRIORITY:5
COMPLETED:20100103T163919Z
PERCENT-COMPLETE:100
END:VTODO

My preliminary interpretation:
kontact sets PERCENT-COMPLETE and COMPLETED and does NOT set the  
STATUS field. Horde however, does not regard a VTODO as complete  
unless its status is set to COMPLETED.

Would it be better if horde considered a VTODO complete as soon as it  
has a COMPLETED tag?
Note that I couldn't find a RFC which describes those fields in detail  
(RFC 2445 comes closest) so this is my gut feeling.

Software versions:
horde 3.3.6
nag 2.3.4
KDE SC 4.3.3