feat(Core/Database): port TrinityCore database API (#5611)

src/server/database/Database/MySQLPreparedStatement.h

@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-AGPL3
+ * Copyright (C) 2021+ WarheadCore <https://github.com/WarheadCore>
+ */
+
+#ifndef MySQLPreparedStatement_h__
+#define MySQLPreparedStatement_h__
+
+#include "DatabaseEnvFwd.h"
+#include "Define.h"
+#include "MySQLWorkaround.h"
+#include <string>
+#include <vector>
+
+class MySQLConnection;
+class PreparedStatementBase;
+
+//- Class of which the instances are unique per MySQLConnection
+//- access to these class objects is only done when a prepared statement task
+//- is executed.
+class AC_DATABASE_API MySQLPreparedStatement
+{
+friend class MySQLConnection;
+friend class PreparedStatementBase;
+
+public:
+    MySQLPreparedStatement(MySQLStmt* stmt, std::string queryString);
+    ~MySQLPreparedStatement();
+
+    void BindParameters(PreparedStatementBase* stmt);
+
+    uint32 GetParameterCount() const { return m_paramCount; }
+
+protected:
+    void SetParameter(uint8 index, std::nullptr_t);
+    void SetParameter(uint8 index, bool value);
+    template<typename T>
+    void SetParameter(uint8 index, T value);
+    void SetParameter(uint8 index, std::string const& value);
+    void SetParameter(uint8 index, std::vector<uint8> const& value);
+
+    MySQLStmt* GetSTMT() { return m_Mstmt; }
+    MySQLBind* GetBind() { return m_bind; }
+    PreparedStatementBase* m_stmt;
+    void ClearParameters();
+    void AssertValidIndex(uint8 index);
+    std::string getQueryString() const;
+
+private:
+    MySQLStmt* m_Mstmt;
+    uint32 m_paramCount;
+    std::vector<bool> m_paramsSet;
+    MySQLBind* m_bind;
+    std::string const m_queryString;
+
+    MySQLPreparedStatement(MySQLPreparedStatement const& right) = delete;
+    MySQLPreparedStatement& operator=(MySQLPreparedStatement const& right) = delete;
+};
+
+#endif // MySQLPreparedStatement_h__