[gnome-music/wip/mschraal/tageditor: 5/16] grltrackerwrapper: Retrieve creation year for songs

[Marinus Schraal <mschraal src gnome org>]

commit 992681840960749ca066a4b9a00d053a87121f1f
Author: Sumaid Syed <sumaidsyed gmail com>
Date:   Sun Aug 4 22:47:34 2019 +0530

    grltrackerwrapper: Retrieve creation year for songs
    
    Based on the patches by Jean Felder
    
    https://gitlab.gnome.org/GNOME/gnome-music/issues/293

 gnomemusic/grilowrappers/grltrackerwrapper.py | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/gnomemusic/grilowrappers/grltrackerwrapper.py b/gnomemusic/grilowrappers/grltrackerwrapper.py
index ceb8242e..ca7beb8d 100644
--- a/gnomemusic/grilowrappers/grltrackerwrapper.py
+++ b/gnomemusic/grilowrappers/grltrackerwrapper.py
@@ -298,6 +298,7 @@ class GrlTrackerWrapper(GObject.GObject):
             nie:usageCounter(?song) AS ?play_count
             nmm:trackNumber(?song) AS ?track_number
             nmm:setNumber(nmm:musicAlbumDisc(?song)) AS ?album_disc_number
+            YEAR(nie:contentCreated(?song)) AS ?creation_date
             ?tag AS ?favourite
         WHERE {
             ?song a nmm:MusicPiece .
@@ -371,6 +372,7 @@ class GrlTrackerWrapper(GObject.GObject):
             nie:usageCounter(?song) AS ?play_count
             nmm:trackNumber(?song) AS ?track_number
             nmm:setNumber(nmm:musicAlbumDisc(?song)) AS ?album_disc_number
+            YEAR(nie:contentCreated(?song)) AS ?creation_date
             ?tag AS ?favourite
         WHERE {
             ?song a nmm:MusicPiece .
@@ -604,6 +606,7 @@ class GrlTrackerWrapper(GObject.GObject):
             nmm:setNumber(nmm:musicAlbumDisc(?song)) AS ?album_disc_number
             ?tag AS ?favourite
             nie:usageCounter(?song) AS ?play_count
+            YEAR(nie:contentCreated(?song)) AS ?creation_date
         WHERE {
             ?song a nmm:MusicPiece ;
                     nmm:musicAlbum ?album .