[UI] Added some stats on the track view

src/database/Track.cpp

@@ -113,6 +113,20 @@ Track::getUIQuery(Wt::Dbo::Session& session, SearchFilter filter)
 	return query;
 }
 
+Track::StatsQueryResult
+Track::getStats(Wt::Dbo::Session& session, SearchFilter filter)
+{
+	SqlQuery sqlQuery = generatePartialQuery(filter);
+
+	Wt::Dbo::Query<StatsQueryResult> query = session.query<StatsQueryResult>( "SELECT COUNT(DISTINCT t.id), SUM(t.duration) FROM track t INNER JOIN artist a ON t.artist_id = a.id INNER JOIN genre g ON g.id = t_g.genre_id INNER JOIN track_genre t_g ON t_g.track_id = t.id INNER JOIN release r ON r.id = t.release_id " + sqlQuery.where().get());
+
+	for (const std::string& bindArg : sqlQuery.where().getBindArgs())
+		query.bind(bindArg);
+
+	return query;
+}
+
+
 std::vector<Track::pointer>
 Track::getByFilter(Wt::Dbo::Session& session, SearchFilter filter, int offset, int size)
 {

src/database/Track.hpp

@@ -105,10 +105,8 @@ class Track
 		static pointer getByPath(Wt::Dbo::Session& session, const boost::filesystem::path& p);
 		static pointer getById(Wt::Dbo::Session& session, id_type id);
 		static pointer getByMBID(Wt::Dbo::Session& session, const std::string& MBID);
-		static Wt::Dbo::collection< pointer > getAll(Wt::Dbo::Session& session);
-
-		// Used for remote
 		static std::vector<pointer> 	getByFilter(Wt::Dbo::Session& session, SearchFilter filter, int offset = -1, int size = -1);
+		static Wt::Dbo::collection< pointer > getAll(Wt::Dbo::Session& session);
 
 		// Utility fonctions
 		// MVC models for the user interface
@@ -127,6 +125,13 @@ class Track
 		static Wt::Dbo::Query< UIQueryResult > getUIQuery(Wt::Dbo::Session& session, SearchFilter filter);
 		static void updateUIQueryModel(Wt::Dbo::Session& session, Wt::Dbo::QueryModel< UIQueryResult >& model, SearchFilter filter, const std::vector<Wt::WString>& columnNames = std::vector<Wt::WString>());
 
+		// Stats for a given search filter
+		typedef boost::tuple<
+				int,		// Total tracks
+				boost::posix_time::time_duration // Total duration
+				> StatsQueryResult;
+		static StatsQueryResult getStats(Wt::Dbo::Session& session, SearchFilter filter);
+
 		// Create utility
 		static pointer	create(Wt::Dbo::Session& session, const boost::filesystem::path& p);