Rename some backend methods

mopidy/backends/base.py

@@ -3,15 +3,6 @@ class BaseBackend(object):
     def current_song(self):
         return None
 
-    def list_playlists(self):
-        return None
-
-    def playlist_changes(self, version):
-        return None
-
-    def load(self, name):
-        pass
-
 # Status methods
     def status_volume(self):
         return 0
@@ -43,3 +34,14 @@ class BaseBackend(object):
 # Control methods
     def stop(self):
         pass
+
+# Current/single playlist methods
+    def playlist_changes(self, version):
+        return None
+
+    def playlist_load(self, name):
+        pass
+
+# Stored playlist methods
+    def playlists_list(self):
+        return None

mopidy/backends/spotify.py

@@ -9,19 +9,23 @@ class SpotifyBackend(BaseBackend):
         self.spotify = spytify.Spytify(
             settings.SPOTIFY_USERNAME.encode('utf-8'),
             settings.SPOTIFY_PASSWORD.encode('utf-8'))
+        self._playlist_load_cache = None
 
-    def list_playlists(self):
-        playlists = u''
+    def playlist_load(self, name):
+        if not self._playlist_load_cache:
+            for playlist in self.spotify.stored_playlists:
+                if playlist.name == name:
+                    tracks = []
+                    for track in playlist.tracks:
+                        tracks.append(u'add %s\n' % track.file_id)
+                    self._playlist_load_cache = tracks
+                    break
+        return self._playlist_load_cache
+
+    def playlists_list(self):
+        playlists = []
         for playlist in self.spotify.stored_playlists:
-            playlists += u'playlist: %s\n' % playlist.name.decode('utf-8')
+            playlists.append(u'playlist: %s' % playlist.name.decode('utf-8'))
         return playlists
 
-    def load(self, name):
-        for playlist in self.spotify.stored_playlists:
-            if playlist.name == 'name':
-                break
 
-        tracks = u''
-        for track in playlist.tracks:
-            tracks += u'add %s\n' % track.file_id
-        return tracks

mopidy/handler.py

@@ -105,18 +105,18 @@ class MpdHandler(object):
 
     @register(r'^listplaylists$')
     def _listplaylists(self):
-        return self.backend.list_playlists()
+        return self.backend.playlists_list()
 
     @register(r'^load (?P<name>.+)$')
     def _load(self, name):
-        self.backend.load(name)
-        pass # TODO
+        return self.backend.playlist_load(name)
 
     @register(r'^lsinfo( "(?P<uri>[^"]*)")*$')
     def _lsinfo(self, uri):
         if uri == u'/':
             return self._listplaylists()
         pass # TODO
+        return self._listplaylists()
 
     @register(r'^move ((?P<songpos>\d+)|(?P<start>\d+):(?P<end>\d+)*) (?P<to>\d+)$')
     def _move(self, songpos=None, start=None, end=None, to=None):