Database*: move to db/

src/db/DatabaseQueue.cxx

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "DatabaseQueue.hxx"
+#include "DatabaseGlue.hxx"
+#include "DatabasePlugin.hxx"
+#include "Partition.hxx"
+#include "util/Error.hxx"
+#include "DetachedSong.hxx"
+#include "Mapper.hxx"
+
+#include <functional>
+
+static bool
+AddToQueue(Partition &partition, const LightSong &song, Error &error)
+{
+	PlaylistResult result =
+		partition.playlist.AppendSong(partition.pc,
+					      map_song_detach(song),
+					      nullptr);
+	if (result != PlaylistResult::SUCCESS) {
+		error.Set(playlist_domain, int(result), "Playlist error");
+		return false;
+	}
+
+	return true;
+}
+
+bool
+AddFromDatabase(Partition &partition, const DatabaseSelection &selection,
+		Error &error)
+{
+	const Database *db = GetDatabase(error);
+	if (db == nullptr)
+		return false;
+
+	using namespace std::placeholders;
+	const auto f = std::bind(AddToQueue, std::ref(partition), _1, _2);
+	return db->Visit(selection, f, error);
+}