Re: [Tracker] Tags, metadata and date fields

[Ivan Frade <ivan frade gmail com>]

hi,

 you don't need to poll tracker. Tracker has a signal mechanism to
notify changes (additions, removals, changes) on class basis (only
some classes are supported). Check:
http://live.gnome.org/Tracker/Documentation/SignalsOnChanges

So your script goes as follows:

 connect to additions in nfo:textDocument
 on addition { add your metadata )

in the callback you receive the tracker-uri... you can always get the
location in the filesystem with:

select ?location where { TRACKER-URI nie:url ?location }

regards

ivan

On 4/9/10, Alexey Fisher <bug-track fisher-privat net> wrote:
> Am Freitag, den 09.04.2010, 11:50 -0400 schrieb Nikolaus Rath:
> > Adrien Bustany <abustany-rDKQcyrBJuzYtjvyW6yDsg public gmane org> writes:
> > > On Fri, 09 Apr 2010 09:23:38 -0400, Nikolaus Rath
> > > <Nikolaus-BTH8mxji4b0 public gmane org>
> > > wrote:
> > > > Ivan Frade
> > > > <ivan frade-Re5JQEeQqe8AvxtiuMwx3w-XMD5yJDbdMReXY1tMh2IBg public gmane org>
> > > > writes:
> > > > > Hi,
> > > > >
> > > > > > However, I wasn't really able to find any information on how to get
> > > the
> > > > > > metadata into my index in the first place. Could you give me some
> > > > > > information where to start? Do I move the documents into a
> > > > > > tracker-watched folder and manually modify the database after the
> > > > > > documents have been indexed? Or do I explicitly ask tracker to add a
> > > > > > specific file with specific metadata to the index? Or do I add the
> > > > > > metadata as extended attributes of the file and put it in a watched
> > > > > > folder? Or something else entirely?
> > > > >
> > > > >  Check ~/.config/tracker/tracker-miner-fs.cfg file to know/configure
> > > what
> > > > > directories is tracker watching. Either you move your files to any of
> > > > > those
> > > > > locations, or you add your documents path there.
> > > > >
> > > > >  Wait for tracker to index that folder (tracker-status should show the
> > > > > progress), and then run a query with:
> > > > [..]
> > > >
> > > > That seems a little bit cumbersome to me. So my "Add to Archive" script
> > > > would have to move the file into the watcher directory, and then poll
> > > > tracker until the file has been indexed? Isn't there a way to instruct
> > > > tracker to "index this file and block until your're done"?
> > > No, it'd be the other way around: your archive folder would be indexed
> > > by Tracker, and your script wouldn't have to do anything more.
> >
> > My script still has to add the custom metadata, doesn't it? And the way
> > understood you, I need the tracker-url of the document to add the
> > metadata. And the tracker-url is only available once the document is
> > actually in the index...
>
> Interesting question. I still can't finish my program because of this.
>
> Regards,
>       Alexey
>
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