GetPlaylists only with names and uri's

[woutervanwijk]

For the http-frontend, getting the whole list of playlists including all tracks is a bit too much. It works, but it slows the interface down too much, especially in webkit. Firefox handles it ok, but webkit doesn't, it locks up for a while. It would be great to have an option to get only the playlist-names and uri's, so that you could load the tracks after the user clicks on a playlist via a lookup.

[adamcik]

Hmm, I'm wondering if there should a PlaylistReference model or something like that which is really just a sub-set of a playlist for providing say name, uri and track count. Alternative would be just to re-use the model we have and not set tracks, but I would kinda like to have a clear separation between a partial and full playlist.

[jodal]

I can understand that you want to keep a separation here, but I'm afraid adding e.g. a PlaylistRef which is simply a Playlist without tracks would just be more confusing to "end developers"?

What about extending core.playlists.get_playlist() to take a keyword argument include_tracks=True. Then the "end developer" will always have to explicitly ask us to strip out the tracks before returning the playlists.

[adamcik]

Mhm, that was the other alternative I was thinking of, but in that case I guess we would want a num_tracks field to playlists.

[jodal]

Yeah, that would be nice. Should the playlist creator set it manually, or should the Playlist model have some logic for setting it? We must be able to make a copy of the playlist with 0 tracks without resetting the num_tracks field to 0.

[woutervanwijk]

It's both ok for me. I would even be fine if there was a simple function like this:
I tried to add it to the base-backend, but it doesn't show up in javascript :-(
It's much faster when I tested i btw

---

def get_playlists_light(self):
    """
    Get currently available playlists, but without tracks.

    """
    lightplaylists = []
    for pl in self._playlists:
        lightplaylists.append({'uri':pl.uri, 'name':pl.name})
    return lightplaylists

[jodal]

Fixed by #313.