From kde-pim  Sat Feb 18 17:18:00 2012
From: Dan Vratil <dan () progdan ! cz>
Date: Sat, 18 Feb 2012 17:18:00 +0000
To: kde-pim
Subject: Re: [Kde-pim] Contacts, Groups, Akonadi and Nepomuk
Message-Id: <15462404.0GfiFVb8v5 () odin>
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On Saturday 18 of February 2012 15:55:19 Kevin Krammer wrote:
> Hi,
> 
> sorry for not replying earlier, I have just returned from a business trip.

Hi, 

no problem :)

> 
> On Sunday, 2012-02-12, Dan Vratil wrote:
> > On Saturday 11 of February 2012 16:41:33 Kevin Krammer wrote:
> > > On Saturday, 2012-02-11, Dan Vratil wrote:
> > > > Hello,
> > > > 
> > > > I 'd like to bring full support for contact groups to the Google
> > > > Contacts resource. The problem is, that a single contact on Google can
> > > > be listed in multiple groups, but Akonadi does not seem to support
> > > > storing single instance of Akonadi::Item in multiple collections
> > > > without duplication.
> > > 
> > > See Akonadi::LinkJob and/or KABC::ContactGroup
> > 
> > Thanks, the Linkjob is exactly what I needed. I've run to some trouble
> > using it though.
> > 
> > I have the root collection properly synchronized (that works as expected)
> > and then I have a subcollection. When retrieveItems() is called for this
> > subcollection, I fetch all items from the main collection, check their
> > groups membership and then I call LinkJob to link some of the items from
> > main collection with the subcollection. This works for the first time - I
> > can see the linked items in the subcollection (and they are properly
> > linked in Akonadi database), but when I restart KAddressBook, the linked
> > items will not appear in the subcollection, no matter what I do.
> 
> Weird, restarting a client like KAddressBook should not change data in
> Akonadi.
> Can you check if the shutdown or the restart of KAddressBook makes the
> linked items vanish from the collection?

The items are still linked in Akonadi database, I can see them all in 
collectionpimitemrelation table. They are just not fetched by the model.

I suspect that the problem is, that the collections are not virtual. From 
reading documentation and going through other resources I got the impression  
that linked items are accepted by virtual collections only. I haven't tested 
it though, because the Collection::isVirtual() method is hardcoded for the 
search and nepomuktag resources only.

> 
> > Any idea what I could be missing?
> 
> No idea, sorry. Haven't used linking myself yet, just remembered that there
> was a job for that purpose.
> 
> Cheers,
> Kevin
> 
> 
> --
> Kevin Krammer, KDE developer, xdg-utils developer
> KDE user support, developer mentoring

-- 
Dan Vratil
www.progdan.cz | dan@progdan.cz | Jabber: progdan@jabber.cz
Fingerprint: 76C9 2F08 5D0D 6F9E 5AD4 2BFD 3A85 0307 F506 5B61
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