I've created a trac bug for this as well, and am posting it here in case anyone else has seen this and found a more practical solution.
If you want to look at it in trac, it's #1381
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I have a gallery, containing 4 or 5 albums. Recently, sort-order breaks in one of the albums (which contains around 260 images) when new image batches are uploaded via the UI.
Sort order is set as Date(Descending), but after uploading a large group of new images, becomes 'stuck' - I don't know whether it's internally using date ascending or ID ascending, but changing the sort order on the album to *any* value has no effect.
If the newly-uploaded photos are deleted from the gallery using SSH, then the sort order returns to Date(Descending).
First time this happened, the photos were all named <number>.jpg, and changing this to Picture_<number>.jpg on the server seemed to fix the problem.
Second time, with about 25 files all named dsc_<number>.jpg, the same thing has happened.
This time moving the photos away, and moving them back in batches of 5 or so seems to have fixed the problem -- at least for now.
zenphoto/installation details are:
Zenphoto version 1.2.8 [4881] (Official Build)
Current gallery theme: default
PHP version: 5.2.8
Graphics support: PHP GD library bundled (2.0.34 compatible)
PHP memory limit: 96M (Note: Your server might allocate less!)
MySQL version: 5.0.86
-PJC
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To reduce redundancy, here are my answers to some questions already asked in trac:
>Some questions: Does the drop-down indicator still show Date (Descending) as the sort order when this happens?
Yes
>Which area are you viewing the images--the front end album, the back end image edit tab, both?
Both
>For each, what is the "selection" for sort order that shows in the drop-down. Does it change?
The "selection" is Date(Descending) for both, and changes when I change it, but the "apparent" order doesn't change
>Do you have any guess as to what the order actually is?
I can't tell directly, but my guess would be Date(Ascending) or ID(Ascending), which I'd guess would visibly look the same?
>Have you tried refreshing pages a few times to see if the order changes?
Yes - nothing changes unless I remove and (re-)add pictures in smaller batches - 5 at a time works just fine, whether added via the UI, or copied in the SSH terminal. I haven't done much experimentation to find the threshold, but would guess it's something under 10.
Zenphoto
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