[gnome-music/wip/jfelder/mpris-cleanup: 44/67] mpris: Use song favourite status to describe userRating

[Jean Felder <jfelder src gnome org>]

commit 3a855f095fd36ad9c4e2bc1b3ac21fe682cfec28
Author: Jean Felder <jfelder src gnome org>
Date:   Tue Sep 4 18:32:35 2018 +0200

    mpris: Use song favourite status to describe userRating
    
    Music does not handle user ratings but the favourite status can be
    used instead.
    Set userRating to 1.0 is song is favourite, 0.0 otherwise.

 gnomemusic/mpris.py | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/gnomemusic/mpris.py b/gnomemusic/mpris.py
index 5998037a..fe9c9649 100644
--- a/gnomemusic/mpris.py
+++ b/gnomemusic/mpris.py
@@ -327,12 +327,8 @@ class MPRIS(DBusInterface):
         except:
             pass
 
-        try:
-            userRating = media.get_rating()
-            assert userRating is not None
-            metadata['xesam:userRating'] = GLib.Variant('d', userRating)
-        except:
-            pass
+        user_rating = 1.0 if media.get_favourite() else 0.0
+        metadata['xesam:userRating'] = GLib.Variant('d', user_rating)
 
         try:
             title = utils.get_media_title(media)