From acb0e47909be2463b9620e46517cd8db4889135f Mon Sep 17 00:00:00 2001
From: Trygve Aaberge <trygveaa@gmail.com>
Date: Sat, 21 Jun 2014 17:21:48 +0200
Subject: [PATCH] mpd: Ignore empty parts in query

This is to fix e.g. that an empty string can't be parsed as a date,
which may be attempted if the query contains 'Date ""'.
---
 mopidy/mpd/protocol/music_db.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mopidy/mpd/protocol/music_db.py b/mopidy/mpd/protocol/music_db.py
index 300f95e8..769cc80b 100644
--- a/mopidy/mpd/protocol/music_db.py
+++ b/mopidy/mpd/protocol/music_db.py
@@ -41,7 +41,9 @@ def _query_from_mpd_search_parameters(parameters, mapping):
             raise exceptions.MpdArgError('incorrect arguments')
         if not parameters:
             raise ValueError
-        query.setdefault(field, []).append(parameters.pop(0))
+        value = parameters.pop(0)
+        if value:
+            query.setdefault(field, []).append(value)
     return query