From 45c0216ea060ea2dde3b821cb54e9428619869d4 Mon Sep 17 00:00:00 2001
From: Laurent Monin <zas@norz.org>
Date: Thu, 4 Jun 2015 00:37:15 +0200
Subject: [PATCH] Discogs importer: append sub-track titles to main title

If we have an index titled "A" with 2 sub-tracks "B" and "C", set the track title to "A: B / C"

Tested on http://www.discogs.com/release/5880212
---
 discogs_importer.user.js | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/discogs_importer.user.js b/discogs_importer.user.js
index fe04a87..045f824 100644
--- a/discogs_importer.user.js
+++ b/discogs_importer.user.js
@@ -357,7 +357,7 @@ function parseDiscogsRelease(data) {
         if (discogsTrack.type_ == 'heading') {
           heading = discogsTrack.title;
           return;
-        } else if (discogsTrack.type_ != 'track') {
+        } else if (discogsTrack.type_ != 'track' && discogsTrack.type_ != 'index') {
           return;
         }
 
@@ -386,8 +386,27 @@ function parseDiscogsRelease(data) {
         // Track position and release number
         var trackPosition = discogsTrack.position;
 
+        // Handle sub-tracks
         if (trackPosition == "" && discogsTrack.sub_tracks) {
             trackPosition = discogsTrack.sub_tracks[0].position;
+            // Append titles of sub-tracks to main track title
+            var subtrack_titles = [];
+            $.each(discogsTrack.sub_tracks, function(subtrack_index, subtrack) {
+              if (subtrack.type_ != 'track') {
+                return;
+              }
+              if (subtrack.title) {
+                subtrack_titles.push(subtrack.title);
+              } else {
+                subtrack_titles.push('[unknown]');
+              }
+            });
+            if (subtrack_titles.length) {
+              if (track.title) {
+                track.title += ': ';
+              }
+              track.title += subtrack_titles.join(' / ');
+            }
         }
 
         // Skip special tracks