From b9fc585e26283bd00fc2970c40777d48724cbe87 Mon Sep 17 00:00:00 2001
From: HanzZ <hanzz.k@gmail.com>
Date: Fri, 12 Aug 2011 18:32:53 +0200
Subject: [PATCH] print mysql errors

---
 include/transport/mysqlbackend.h | 2 ++
 src/mysqlbackend.cpp             | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/include/transport/mysqlbackend.h b/include/transport/mysqlbackend.h
index 99fe3ff5..e411b3fc 100644
--- a/include/transport/mysqlbackend.h
+++ b/include/transport/mysqlbackend.h
@@ -111,10 +111,12 @@ class MySQLBackend : public StorageBackend
 				Statement& operator >> (T& t);
 			private:
 				MYSQL_STMT *m_stmt;
+				MYSQL *m_conn;
 				std::vector<MYSQL_BIND> m_params;
 				int m_resultOffset;
 				int m_offset;
 				int m_error;
+				std::string m_string;
 		};
 
 		MYSQL m_conn;
diff --git a/src/mysqlbackend.cpp b/src/mysqlbackend.cpp
index ef54b127..388222b6 100644
--- a/src/mysqlbackend.cpp
+++ b/src/mysqlbackend.cpp
@@ -78,7 +78,9 @@ static LoggerPtr logger = Logger::getLogger("MySQLBackend");
 
 MySQLBackend::Statement::Statement(MYSQL *conn, const std::string &format, const std::string &statement) {
 	m_resultOffset = -1;
+	m_conn = conn;
 	m_offset = 0;
+	m_string = statement;
 	m_stmt = mysql_stmt_init(conn);
 	if (mysql_stmt_prepare(m_stmt, statement.c_str(), statement.size())) {
 		LOG4CXX_ERROR(logger, statement << " " << mysql_error(conn));
@@ -148,6 +150,7 @@ bool MySQLBackend::Statement::execute() {
 	}
 
 	if (mysql_stmt_execute(m_stmt)) {
+		LOG4CXX_ERROR(logger, m_string << " " << mysql_error(m_conn));
 		return false;
 	}
 	return true;