[Database] restored id on Artist, Genre and Release tables. Added basic MusicBrainz ID support. Improved search filters a bit

src/database/SearchFilter.cpp

@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2015 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS 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 LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "SearchFilter.hpp"
+
+namespace Database
+{
+
+SqlQuery generatePartialQuery(SearchFilter& filter)
+{
+	SqlQuery sqlQuery;
+
+	WhereClause likeWhereClause;
+
+	// Process name like parameters
+	for (auto nameLikeMatch : filter.nameLikeMatch)
+	{
+		// Artist
+		switch (nameLikeMatch.first)
+		{
+			case SearchFilter::Field::Artist:
+				for (const std::string& name : nameLikeMatch.second)
+					likeWhereClause.Or( WhereClause("a.name LIKE ?") ).bind("%%" + name + "%%");
+				break;
+
+			case SearchFilter::Field::Release:
+				for (const std::string& name : nameLikeMatch.second)
+					likeWhereClause.Or( WhereClause("r.name LIKE ?") ).bind("%%" + name + "%%");
+				break;
+
+			case SearchFilter::Field::Genre:
+				for (const std::string& name : nameLikeMatch.second)
+					likeWhereClause.Or( WhereClause("g.name LIKE ?") ).bind("%%" + name + "%%");
+				break;
+
+			case SearchFilter::Field::Track:
+				for (const std::string& name : nameLikeMatch.second)
+					likeWhereClause.Or( WhereClause("t.name LIKE ?") ).bind("%%" + name + "%%");
+				break;
+		}
+
+	}
+	sqlQuery.where().And( likeWhereClause );
+
+	// Process id exact match parameters
+
+	for (auto idMatch : filter.idMatch)
+	{
+		WhereClause idWhereClause;
+
+		switch (idMatch.first)
+		{
+			case SearchFilter::Field::Artist:
+				for (auto id : idMatch.second)
+					idWhereClause.Or( WhereClause("a.id = ?") ).bind( std::to_string(id));
+				break;
+			case SearchFilter::Field::Release:
+				for (auto id : idMatch.second)
+					idWhereClause.Or( WhereClause("r.id = ?") ).bind( std::to_string(id));
+				break;
+			case SearchFilter::Field::Genre:
+				for (auto id : idMatch.second)
+					idWhereClause.Or( WhereClause("g.id = ?") ).bind( std::to_string(id));
+				break;
+			case SearchFilter::Field::Track:
+				for (auto id : idMatch.second)
+					idWhereClause.Or( WhereClause("t.id = ?") ).bind( std::to_string(id));
+				break;
+		}
+
+		sqlQuery.where().And( idWhereClause );
+	}
+
+	return sqlQuery;
+}
+
+} // namespace Database
+