Data2sql (#2070)

* remove leftover progen files * remove Data sources and turn headers into forwards * add SQL files #2059 * Data2sql: adjust Travis, AppVeyor & Makefiles (#2069) * Replace Data by SQL * Replace Data by SQL * Replace Data by SQL * Replace Data by SQL * fix header forwarding * Data2sql: Fixes for complete Travis CI success (#2071) * Replace Data by SQL * Replace Data by SQL * Replace Data by SQL * Replace Data by SQL * Replace Data by SQL * Restore DataFormatException * Replace Data by SQL * Replace Data by SQL * Replace Data by SQL * Replace Data by SQL * construct RowFilter from RecordSet reference instead of pointer * pass Container ref instead of ptr to Column * elimitate g++ warnings * SQL: remove raw pointers from interfaces #2094; add constness and move ops where appropriate * tidy up Postgres * ODBC fixes
2025-11-05 04:58:05 +00:00 · 2018-01-18 11:29:28 -06:00
parent 7726d024ab
commit b49ac67225
708 changed files with 32147 additions and 32429 deletions
--- a/SQL/MySQL/src/StatementExecutor.cpp
+++ b/SQL/MySQL/src/StatementExecutor.cpp
@@ -0,0 +1,148 @@
+//
+// StatementExecutor.cpp
+//
+// Library: Data/MySQL
+// Package: MySQL
+// Module:  StatementExecutor
+//
+// Copyright (c) 2008, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#include <mysql.h>
+#include "Poco/SQL/MySQL/StatementExecutor.h"
+#include "Poco/Format.h"
+
+
+namespace Poco {
+namespace SQL {
+namespace MySQL {
+
+
+StatementExecutor::StatementExecutor(MYSQL* mysql)
+	: _pSessionHandle(mysql)
+	, _affectedRowCount(0)
+{
+	if (!(_pHandle = mysql_stmt_init(mysql)))
+		throw StatementException("mysql_stmt_init error");
+
+	_state = STMT_INITED;
+}
+
+
+StatementExecutor::~StatementExecutor()
+{
+	mysql_stmt_close(_pHandle);
+}
+
+
+int StatementExecutor::state() const
+{
+	return _state;
+}
+
+
+void StatementExecutor::prepare(const std::string& query)
+{
+	if (_state >= STMT_COMPILED)
+	{
+		_state = STMT_COMPILED;
+		return;
+	}
+	
+	int rc = mysql_stmt_prepare(_pHandle, query.c_str(), static_cast<unsigned int>(query.length()));
+	if (rc != 0)
+	{
+		// retry if connection lost
+		int err = mysql_errno(_pSessionHandle);
+		if (err == 2006 /* CR_SERVER_GONE_ERROR */ || err == 2013 /* CR_SERVER_LOST */)
+		{
+			rc = mysql_stmt_prepare(_pHandle, query.c_str(), static_cast<unsigned int>(query.length()));
+		}
+	}
+	if (rc != 0) throw StatementException("mysql_stmt_prepare error", _pHandle, query);
+
+	_query = query;
+	_state = STMT_COMPILED;
+}
+
+
+void StatementExecutor::bindParams(MYSQL_BIND* params, std::size_t count)
+{
+	if (_state < STMT_COMPILED)
+		throw StatementException("Statement is not compiled yet");
+
+	if (count != mysql_stmt_param_count(_pHandle))
+		throw StatementException("wrong bind parameters count", 0, _query);
+
+	if (count == 0) return;
+
+	if (mysql_stmt_bind_param(_pHandle, params) != 0)
+		throw StatementException("mysql_stmt_bind_param() error ", _pHandle, _query);
+}
+
+
+void StatementExecutor::bindResult(MYSQL_BIND* result)
+{
+	if (_state < STMT_COMPILED)
+		throw StatementException("Statement is not compiled yet");
+
+	if (mysql_stmt_bind_result(_pHandle, result) != 0)
+		throw StatementException("mysql_stmt_bind_result error ", _pHandle, _query);
+}
+
+
+void StatementExecutor::execute()
+{
+	if (_state < STMT_COMPILED)
+		throw StatementException("Statement is not compiled yet");
+
+	if (mysql_stmt_execute(_pHandle) != 0)
+		throw StatementException("mysql_stmt_execute error", _pHandle, _query);
+
+	_state = STMT_EXECUTED;
+
+	my_ulonglong affectedRows = mysql_affected_rows(_pSessionHandle);
+	if (affectedRows != ((my_ulonglong) - 1))
+		_affectedRowCount = static_cast<std::size_t>(affectedRows); //Was really a DELETE, UPDATE or INSERT statement
+}
+
+
+bool StatementExecutor::fetch()
+{
+	if (_state < STMT_EXECUTED)
+		throw StatementException("Statement is not executed yet");
+
+	int res = mysql_stmt_fetch(_pHandle);
+
+	// we have specified zero buffers for BLOBs, so DATA_TRUNCATED is normal in this case
+	if ((res != 0) && (res != MYSQL_NO_DATA) && (res != MYSQL_DATA_TRUNCATED))
+		throw StatementException("mysql_stmt_fetch error", _pHandle, _query);
+
+	return (res == 0) || (res == MYSQL_DATA_TRUNCATED);
+}
+
+
+bool StatementExecutor::fetchColumn(std::size_t n, MYSQL_BIND *bind)
+{
+	if (_state < STMT_EXECUTED)
+		throw StatementException("Statement is not executed yet");
+
+	int res = mysql_stmt_fetch_column(_pHandle, bind, static_cast<unsigned int>(n), 0);
+
+	if ((res != 0) && (res != MYSQL_NO_DATA))
+		throw StatementException(Poco::format("mysql_stmt_fetch_column(%z) error", n), _pHandle, _query);
+
+	return (res == 0);
+}
+
+int StatementExecutor::getAffectedRowCount() const
+{
+	return _affectedRowCount;
+}
+
+
+}}}