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List:       kde-panel-devel
Subject:    Re: Akonadi Calendar
From:       John Layt <jlayt () kde ! org>
Date:       2011-10-27 18:36:30
Message-ID: 1425609.HyIUc0fRhD () argo ! layt ! net
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On Thursday 27 Oct 2011 05:50:46 David Narvaez wrote:
> On Sat, Oct 15, 2011 at 6:09 AM, David Narvaez
> =

> <david.narvaez@computer.org> wrote:
> > Hi all, sorry for the cross posting,
> > =

> > I was about to work on fixes in the calendar events dataengine dealing
> > with the Akonadi calendar support, and found this README[0] explaining
> > a migration plan for the dataengine into Akonadi, etc. I wonder what's
> > the status of that migration: if it's already in progress (and needs
> > any help) or if it's still pending. Also, what would be the status of
> > fixes to that feature? First fix in kdepimlibs and then port to the
> > copied code in calendar dataengine? Or should fixes be frozen while the
> > migration happens?
> So after 12 days without an answer I'm assuming:
> =

> 1) No one is taking care of that migration
> 2) There's no freeze to fix bugs on that code
> =

> I assume we are now too close to the freezes to try any drastic move,
> but can we plan for November to pick this topic up? I could take care
> of the migration if someone tells me how files should end up
> structured in Akonadi.
> =

> David E. Narv=E1ez

Hi,

Sorry for not picking up your first email, I've been offline a lot lately.  =

Seeing as I'm the one who wrote that README I should fill things in a bit =

more.

The original author of the data engine had to copy the Akonadi interface fr=
om =

kdepim as it was not available in kdepimlibs at the time.  I moved it to th=
e =

subfolder and updated it with some bug-fixes [1] as well as overhauling the =

data engine itself.  I'm supposed to be keeping the code in sync but forgot =

before the last release, so we need to look at refreshing the copy before t=
he =

next release.

The intention has always been to move the Akonadi calendar interface into =

kdepimlibs so everyone could use it, but I don't know if this has been done =

yet.  Once done we can delete the copy and switch the data engine to the =

kdepimlibs version.  =


Sergio, do you know the status of this?

It was at this point that I was suggesting we might move the code from the =

Calendar engine to the Akonadi data engine so the implementations and =

interfaces are consistent, but thinking about it again Akonadi is an =

implementation detail and a bad name for a high level api so perhaps separa=
te =

data engines for Calendar, Mail, and Contacts are better even if they use t=
he =

same underlying code and consistent api.

Currently the Calendar data engine is a one-way affair, it just fetches the =

existing events from Akonadi, you can't use it to add new events.  What I =

would like to see happen is a two-way integration using a Plasma service [2=
] =

for which I wrote the initial operations definition file [3] but stalled at =

that point.  The idea here is not to provide a full api or feature set, as =

creating events is rather complex and Akonadi/kdepimlibs provides advanced =

widgets for doing that which you don't want to be trying to replicate in =

Plasma as well.  I think an advanced PIM Plasma widget should link directly=
 to =

and use the PIM widgets.  What the service would provide is api for adding =

simple events such as one-off reminders for plasmoids that want to integrat=
e =

but are not really PIM specific.

The other big thing that needs investigation is the abiltiy to configure wh=
at =

Akonadi resource to use, at the moment it just uses the default resource bu=
t I =

can imagine users might want to show different calendars in different widge=
ts.  =

Whether this is something to be provided through the data engine api or if =

it's something an applet should use akonadi directly for is a matter for =

debate.

Basically, as far as I know, no futher work has been done on the Plasma end=
 or =

the Akonadi end.  If you have any more questions, poke me with a stick and =

I'll get back to you when I can.

Cheers!

John.

[1] https://projects.kde.org/projects/kde/kde-
workspace/repository/revisions/master/show/plasma/generic/dataengines/calen=
dar/akonadi
[2] http://techbase.kde.org/Development/Tutorials/Plasma/Services
[3] https://projects.kde.org/projects/kde/kde-
workspace/repository/revisions/master/entry/plasma/generic/dataengines/cale=
ndar/calendar.operations

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