https://bugzilla.wikimedia.org/show_bug.cgi?id=21795





--- Comment #3 from User:Docu <test5...@myway.com>  2009-12-10 09:12:54 UTC ---
*for the second problem: 

The general idea is to evaluate exif data and create categories based on that. 

It seems that this would need a step where exif data is evaluated when a file
is uploaded/re-uploaded or an exif mediawiki namespace message is changed. This
wouldn't necessarily be more expensive than any change to
http://commons.wikimedia.org/wiki/Template:Information. It is likely that
people would edit it each time a new camera type is discovered (or a camera
manufacturer changes its camera string).


a. One way to solve this could be to create a separate table with the exif data
and make this searchable. Given the structure of exif data, this isn't
necessarily that useful. An intermediate solution could be to parse some fields
only into a table. A separate table wouldn't necessarily helpful unless we
build an interface around it. Currently we can't make much use of MIME types
(e.g. to identify SVG).


b. Another way could be based on the MediaWiki messages mentioned above.


c. A third way could be to create a special message in MediaWiki namespace
(e.g. [[MediaWiki:Exif categories]]) that would be parsed on file
upload/re-upload. It could contain variables for exif fields and switch
functions to generate categories.


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