Thanks, everyone. I appreciate the tips.
Jim Coleman
Upsala '75
http://www.linkedin.com/in/jamescoleman
http://www.flickr.com/photos/jecoleman/sets
<http://www.flickr.com/photos/jecoleman>
On Wed, Dec 3, 2014 at 6:09 AM, Tobias Ellinghaus <[email protected]> wrote:
> Am Mittwoch, 3. Dezember 2014, 23:16:35 schrieb johannes hanika:
> > On Wed, Dec 3, 2014 at 1:42 PM, Steven Fosdick <[email protected]>
> >
> > wrote:
> > > On 29 November 2014 at 15:06, johannes hanika <[email protected]>
> wrote:
> > >> your data is in xmp as a backup and to allow transferring it along
> with
> > >> the file easily. the database is our primary source of data, and used
> for
> > >> fast access (the collect module allows you to do fancy things based on
> > >> metadata, which would be atrociously slow if we would need to open all
> > >> the
> > >> xmp for this).
> > >>
> > >> you can sync the xmp data on startup with a crawler thread (which you
> can
> > >> enable in your preferences), in case you're doing crazy things to your
> > >> xmp
> > >> outside dt (load with other application, use sed, etc).
> > >
> > > If so this make it a better idea to change the database? Will
> darktable
> > > rewrite the XMP files from the database? It would be very simple to
> > > change
> > > metadata across a large number of files with SQL.
> >
> > yes, that would work. you might want to collect `film roll %', press
> ctrl-a
> > and write xmp in the right panel after that operation, to be sure the xmp
> > is written. xmp are only synced if data is changed inside dt (which is
> > pretty much all the time you work with a picture, star ratings, tags,
> > colour labels, enter/exit darkroom mode even without changes..).
>
> Instead of forcing a write of all XMP files the crawler could be used
> again.
> Just set the field image.write_timestamp to 0 for every image you change
> in the
> database. If the crawler is activated (duh) it will detect that the XMP is
> newer than the db entry for that image and allow you to overwrite the XMP.
> That way only the images you actually changed needs to be handled.
>
> > -jo
>
> Tobias
>
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