Bug 492849

Summary:	No sidecar XMP file written when "Sidecar file names are compatible..." is UNchecked
Product:	[Applications] digikam	Reporter:	brent
Component:	Metadata-Xmp	Assignee:	Digikam Developers <digikam-bugs-null>
Status:	REPORTED ---
Severity:	normal	CC:	caulier.gilles, metzpinguin
Priority:	NOR
Version First Reported In:	8.4.0
Target Milestone:	---
Platform:	Microsoft Windows
OS:	Microsoft Windows
URL:	https://discuss.kde.org/t/xmp-sidecar-are-not-being-created/19724/2
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	Showing settings in the situation where sidecar files ARE written successfully.

Description brent 2024-09-08 23:49:27 UTC

Created attachment 173463 [details]
Showing settings in the situation where sidecar files ARE written successfully.

SUMMARY

Digikam 8.4.0, when settings are read & write from sidecars, Write to Item & XMP sidecar, and "Sidecar file names are compatible with commercial programs" is NOT CHECKED, then no sidecar file is written.

This is true both when editing the file or metadata in the file (like tags), then saving, and also when doing "Maintenance" and "Sync Metadata and Database" in the direction database-> metadata.

When "Sidecar file names are compatible with commercial programs" is changed to CHECKED, then the XMP sidecar file is written in both of the above cases.


STEPS TO REPRODUCE
1. Settings set to:: Read & write from sidecars, Write to Item & XMP sidecar, and "Sidecar file names are compatible with commercial programs" is NOT CHECKED, then no sidecar file is written.

2.  Edit a photo by changing a tag, changing description, or otherwise changing the metadata.

3. Note that no sidecar file is created.

4.  Repeat the same process, but change "Sidecar file names are compatible with commercial programs" to CHECKED before editing a file's metadata.

5. Proper sidecar file is now created immediately.


OBSERVED RESULT

As above - no sidecar file created.

EXPECTED RESULT

Sidecar file created.

SOFTWARE/OS VERSIONS
Windows: Windows 10, Digikam ver 8.4.0.

ADDITIONAL INFORMATION

There is discussion about this in the forum at https://discuss.kde.org/t/xmp-sidecar-are-not-being-created/19724/2

Comment 1 brent 2024-09-08 23:53:38 UTC

Note the same bug happens whether the setting "Delegate to Exiftools backend all operations to write metadata to files" is checked or unchecked.

Comment 2 caulier.gilles 2024-09-09 05:47:48 UTC

Can you try with the current 8.5.0 pre release to see if the problem remains. Files are there to test :

https://files.kde.org/digikam/

Comment 3 Maik Qualmann 2024-09-09 05:54:28 UTC

I just tested it again - although I was sure - it works in both cases sidecars are created.

Please test it again more carefully, otherwise we need a DebugView log of the process as described here:

https://www.digikam.org/contribute/

Maik

Comment 4 Maik Qualmann 2024-09-12 06:06:32 UTC

Any feedback here? I have now tested it on 3 different Windows installations. In both cases the corresponding sidecar is created. In principle it is not even possible for the option to stop the sidecar from being created.
Here is the simple code:

https://invent.kde.org/graphics/digikam/-/blob/master/core/libs/metadataengine/engine/metaengine_fileio.cpp?ref_type=heads#L42

Maik

Comment 5 caulier.gilles 2025-04-11 18:13:43 UTC

Hi,

The 8.7.0 pre-release Windows installer from today have been rebuilt from
scratch with Qt 6.8.3, KDE 6.12, OpenCV 4.11 + CUDA support, Exiv2 0.28.5, ExifTool 13.27, ffmpeg 7, all image codecs updated to last version (jxl, avif, heif, aom, etc.).

Please try with this version to see if your problem still reproducible...

https://files.kde.org/digikam/

Thanks in advance
Best regards

Gilles Caulier