[tracker/wip/sam/resource: 7/13] tracker-extract: Fix resource API usage in gstreamer extractor

[Sam Thursfield <sthursfield src gnome org>]

commit cdf11ab822340518db89ab2f8e552b2e1a11bb78
Author: Sam Thursfield <sam afuera me uk>
Date:   Thu Apr 7 17:30:42 2016 +0100

    tracker-extract: Fix resource API usage in gstreamer extractor

 src/tracker-extract/tracker-extract-gstreamer.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/tracker-extract/tracker-extract-gstreamer.c b/src/tracker-extract/tracker-extract-gstreamer.c
index 0bfcb0b..4a94f23 100644
--- a/src/tracker-extract/tracker-extract-gstreamer.c
+++ b/src/tracker-extract/tracker-extract-gstreamer.c
@@ -724,7 +724,7 @@ extractor_apply_audio_metadata (MetadataExtractor     *extractor,
 
        if (album_disc) {
                TrackerResource *album;
-               album = tracker_resource_get_relation (album_disc, "nmm:albumDiscAlbum");
+               album = tracker_resource_get_first_relation (album_disc, "nmm:albumDiscAlbum");
 
                tracker_resource_set_relation (audio, "nmm:musicAlbumDisc", album_disc);
                tracker_resource_set_relation (audio, "nmm:musicAlbum", album);