List of existing artists in library

[Sebastián Villamonte]

Hi!
I'm trying to make a plugin in order to get an idea of all existing
artists (and their respective albums) from my collection. Is there a
way to get a list of, say, existing artists in the music library? I
don't know if there's an "artist" object, but a simple list with
artist's names strings will be enough to do the trick (very much like
a SELECT query does). As long as I know, the only path to knowing
something about Exaile's music library using the API, is through the
"trax" object, but it would be very unperforming to scan all existing
tracks in order to build the list of artists, don't you think?
Hope to hear from you! Thanks in advance...

Sebastián

[Aren Olson]

It's not nearly as slow as you'd think to scan through them all - the collection panel does it all the time.  If all you want is a list of all artist strings, I'd suggest something like this (untested):

artists = set()

for track in exaile.collection.get_tracks():

   artists.update(track.get_tag_raw("artist") or [])

That should get you a set object containing all the unique artist tag strings in the db, running in roughly O(number of tracks).  This is unsorted obviously, but you can easily turn it into a list and sort it afterwards if necessary.

HTH

-Aren

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[Sebastián Villamonte]

Wow! You've almost written my plugin! Thanks dude, I will give it a
try, at least as a first approach.
See you around.

Sebastián

On 26 jun, 00:23, Aren Olson <reacoc...@gmail.com> wrote:
> It's not nearly as slow as you'd think to scan through them all - the
> collection panel does it all the time.  If all you want is a list of all
> artist strings, I'd suggest something like this (untested):
>
> artists = set()
> for track in exaile.collection.get_tracks():
>    artists.update(track.get_tag_raw("artist") or [])
>
> That should get you a set object containing all the unique artist tag
> strings in the db, running in roughly O(number of tracks).  This is
> unsorted obviously, but you can easily turn it into a list and sort it
> afterwards if necessary.
>
> HTH
>
> -Aren
>