I have a Coppermine Gallery with over 20 000 photos. Is it possible to import all pictures to zenphoto ?
As far as the ammount of photos, in theory, it should be fine as long as your server has enough capacity for all the photo and the processing power to generate thumbnails.
more specifically, are you talking import as in importing comments and other metadata from coppermine to zenphoto? As far as I have seen, nobody has done that yet.
Theoretically possible though. Coppermine uses an image table and a comments table similar to zenphoto, so it's a matter of writing an import tool to migrate the data, probably including image titles and descriptions if you've typed them (for 20,000 images though? I hope not). It wouldn't be fun, but not terribly difficult either.
If you just want the photos, just copy them into the zenphoto /albums directory and you're gallery is complete. Yes, it is that easy.
Sorry, no manual. There is the database definition. The fields should be pretty easy to decipher. But, you know what would be really nice? A tool that would move the copermine data into EXIF/IPTC fields in the image itself. Then Zenphoto would automatically make use of the information.
I created a basic script. all feedback, bugs, patches, etc welcome here : http://www.zenphoto.org/support/topic.php?id=5003