Enable searching through songs.

Show name instead of username in the list of songs.

marietje/songs/admin.py

@@ -4,6 +4,10 @@ from .models import Song
 
 
 @admin.register(Song)
-class OrderAdmin(admin.ModelAdmin):
+class SongAdmin(admin.ModelAdmin):
-    list_display = ('artist', 'title', 'user')
+    list_display = ('artist', 'title', 'user_name')
-    search_fields = ('artist', 'title', 'user')
+    search_fields = ('artist', 'title', 'user__name')
+
+    @staticmethod
+    def user_name(obj):
+        return obj.user.name