[Nepomuk] Re: same nepomuk db for several users

[Bruce Adams]

----- Original Message ----
> From: Markus Leuthold <nepomuk at titlis.org>
> To: nepomuk at kde.org
> Sent: Sun, December 5, 2010 4:54:03 PM
> Subject: [Nepomuk]   Re: same nepomuk db for several users
> 
> > On 12/02/2010 01:24 AM, Markus Leuthold wrote:
> > > Hello  list
> > > 
> > > We share our computer among several persons,  each with a separate user
> > > account. We want to have a shared nepomuk  database. What's the best way
> > > to do this? Creating a symlink of  ~/.kde/share/apps/nepomuk to a shared
> > > folder?
> > > 
> >  > best regards
> > > Kusi
> 
> > This is tricky. It could be  hacked with links indeed. But then no two
> > users could ever be logged in  at the same time.
> > Why do you want to share the database?
> > 
> > Cheers,
> > Sebastian
> 
> There are many possible use-cases for  sharing tags. Some real-world examples:
> 
> - me and my girlfriend are  planning our vacation. She's tagging documents, 
> pictures etc with the tag  "vacation-2010". In my account, I'd like to see now 

> what is already  available when I'm organizing our vacations in my account.
> 
> - we're  preparing a playlist for a party. We'd like to set the tag "party-
> playlist"  in dolphin, running in each one's account. Since we're in a hurry, 
> we're  tagging the music at the same time on two different computers. So it 
> should  be possible to have the nepomuk db on a remote location.
> 
> As mentioned  later in this thread, not all tags should be shared. It would be 

> nice to  have several nepomuk-dbs (private/shared). I understand that it's 
> quite  tricky to get the sharing right: It doesn't make sense to share tags for 
>
> object which are not shared. 
> You could say that tags of files which are  readable by both accounts should 
> also be saved in a shared nepomuk-db.  Probably best would be an extended user 

> interface where the user can choose  the nepomuk location.
> 
> I'd like to mention that the workflow in digikam  works excellent! We have all 

> our photos in a shared directory. The sqlite3  file digikam4.db is read/write 
> for all users, so each of us can tag photos  (even concurrently) in digikam in 

> our own accounts. 
> 
> Talking about  concurrent access: are you sure 2 nepomuk clients cannot access 

> the db at  the same time? It works with digikam. You can have two running 
> instances of  digikam (in two accounts), and when you change metadata located 
> in  digikam4.db, the change is immediately visible in the other running 
> instance  of  digikam
> 
> cheers,
> Kusi

If digikam is using sqllite it is presumably not using nepomuk?

I see that it does support nepomuk according the link below.
How are the two database's reconciled (if indeed they are)?

http://www.digikam.org/drupal/node/500