[Digikam-devel] [Bug 268688] Write metadata to all images does not remove obsolete tags

[DrSlony]

https://bugs.kde.org/show_bug.cgi?id=268688

--- Comment #30 from DrSlony <bugs at londonlight.org> ---
That is incorrect. I only store metadata in the image files themselves, not in
sidecar files. I cannot effectively delete tags so that they will be removed
from the images' embedded metadata. Removing the digikam.db file doesn't help
either as it will get repopulated with crap when the images are reread.

(In reply to comment #25)
> It is possible to rearrange tags on the tag tree and synchronize tags and
> the database IF you let digiKam write to the images. The trick is to reread
> metadata from the images to get all the mismatched tags into the digiKam
> database, then select ALL tags (not just the unwanted tags) on the Filters
> pane before rearranging and pruning the tag tree. Use a combination of
> albums and tags on the left pane to actually select the files to work with.
> 
> Unfortunately the above process doesn't seem to work if you are only writing
> to XMP sidecar files. digiKam doesn't seem to reread the XMP file and/or
> doesn't seem to want to delete any tags already written in the XMP file. 
> 
> I can see how some people might want digiKam to leave existing tags alone in
> the XMP file, if other applications are also using the same XMP file. But
> for myself, digiKam is the only application that writes to the XMP file and
> the current behavior makes using only XMP files impossible if I want the XMP
> files and the digiKam database to be in synch, which I do.

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