Re: [Tracker] Handling arrays in XMP

[jamie <jamiemcc blueyonder co uk>]

On Mon, 2007-06-25 at 16:35 -0700, Jason Kivlighn wrote:
> As far as I can tell, Tracker only does a one to one mapping of keys to
> values.  For example, there can only be one value for DC:Title.
>
> For the dc:subject example, I'm talking about how to index this
> example.  I can only have one value mapped to DC:Subject in the
> database, so I'm wondering if I should just separate each array item
> with a comma and then store that as the DC:Subject value.

A few things,

1) we do handle multiple value for some metadata but only where said
metadata is defined as supporting multiple values eg like keywords

2) Avoid using DC types as they are too generic and may get overwritten
if other apps use them. Our practice is to subclass DC types where
necessary EG Doc:Author is a subclass of DC:Author.

3) separating multiple values with commas wont work if we search for a
specific keyword using the keyword api

4) for langs it onl;y makes sense to use the user locale one if
available

Hope thats enough to keep you busy until I commit your other stuff

jamie