Removed the database lib from services as it is still not a service

src/libs/database/impl/SqlQuery.hpp

@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2013 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/>.
+ */
+
+#pragma once
+
+#include <vector>
+#include <string>
+
+
+class WhereClause
+{
+	public:
+		WhereClause() {}
+		WhereClause(const std::string& clause) { _clause = clause; }
+
+		WhereClause& And(const WhereClause& clause);
+		WhereClause& Or(const WhereClause& clause);
+
+		// Arguments binding (for each '?' in where clause)
+		WhereClause& bind(std::string_view arg);
+
+		std::string get() const;
+		const std::vector<std::string>&	getBindArgs() const	{return _bindArgs;}
+
+	private:
+		std::string _clause;		// WHERE clause
+		std::vector<std::string>  _bindArgs;
+};
+
+class InnerJoinClause
+{
+	public:
+		InnerJoinClause() {}
+		InnerJoinClause(const std::string& clause);
+
+		InnerJoinClause&	And(const InnerJoinClause& clause);
+		std::string get() const	{ return _clause;}
+
+	private:
+		std::string _clause;
+};
+
+class GroupByStatement
+{
+	public:
+		GroupByStatement() {}
+		GroupByStatement(const std::string& statement) { _statement = statement; }
+
+		GroupByStatement& And(const GroupByStatement& statement);
+
+		std::string get() const      {return _statement;}
+
+	private:
+		std::string _statement;		// SELECT statement
+};
+
+class SelectStatement
+{
+	public:
+		SelectStatement() {};
+		SelectStatement(const std::string& item);
+
+		SelectStatement& And(const std::string& item);
+
+		std::string get() const;
+
+	private:
+		std::vector<std::string>	_statement;
+};
+
+class FromClause
+{
+	public:
+		FromClause() {}
+		FromClause(const std::string& clause);
+
+		FromClause& And(const FromClause& clause);
+
+		std::string get() const;
+
+	private:
+		std::vector<std::string>	_clause;
+};
+
+class SqlQuery
+{
+	public:
+		SelectStatement&	select()		{ return _selectStatement;}
+		SelectStatement&	select(const std::string& statement)		{ _selectStatement = SelectStatement(statement); return _selectStatement; }
+		FromClause&		from()		{ return _fromClause; }
+		FromClause&		from(const std::string& clause)			{ _whereClause = WhereClause(clause); return _fromClause; }
+		InnerJoinClause&	innerJoin()		{ return _innerJoinClause; }
+		WhereClause&		where()		{ return _whereClause; }
+		const WhereClause&	where() const	{ return _whereClause; }
+		GroupByStatement&	groupBy() 		{ return _groupByStatement; }
+		const GroupByStatement&	groupBy() const	{ return _groupByStatement; }
+
+		std::string get() const;
+
+	private:
+		SelectStatement		_selectStatement;	// SELECT statement
+		InnerJoinClause		_innerJoinClause;	// INNER JOIN
+		FromClause		_fromClause;		// FROM tables
+		WhereClause		_whereClause;		// WHERE clause
+		GroupByStatement	_groupByStatement;	// GROUP BY statement
+};
+