diff --git a/CoAuthoring/sources/mySqlBaseConnector.js b/CoAuthoring/sources/mySqlBaseConnector.js
index 91e5dd2e..f94fac2f 100644
--- a/CoAuthoring/sources/mySqlBaseConnector.js
+++ b/CoAuthoring/sources/mySqlBaseConnector.js
@@ -1 +1 @@
-var mysql = require('mysql');
var config = require('./config.json');
var configSql = config['sql'];
var pool  = mysql.createPool({
	host		: configSql['host'],
	port		: configSql['dbport'],
	user		: configSql['user'],
	password	: configSql['pass'],
	database	: configSql['database'],
	charset		: configSql['charset']
});

var logger = require('./../../Common/sources/logger');

exports.sqlQuery = function (sqlCommand, callbackFunction) {
	pool.getConnection(function(err, connection) {
		if (err) {
			logger.error('pool.getConnection error: %s', err);
			if (callbackFunction) callbackFunction(err, null);
			return;
		}

		connection.query(sqlCommand, function (error, result) {
			connection.release();
			if (error) logger.error('sqlQuery: %s sqlCommand: %s', error.code, sqlCommand);
			if (callbackFunction) callbackFunction(error, result);
		});
	});
};
\ No newline at end of file
+var mysql = require('mysql');
var config = require('./config.json');
var configSql = config['sql'];
var pool  = mysql.createPool({
	host		: configSql['host'],
	port		: configSql['dbport'],
	user		: configSql['user'],
	password	: configSql['pass'],
	database	: configSql['database'],
	charset		: configSql['charset']
});

var logger = require('./../../Common/sources/logger');

exports.sqlQuery = function (sqlCommand, callbackFunction) {
	pool.getConnection(function(err, connection) {
		if (err) {
			logger.error('pool.getConnection error: %s', err);
			if (callbackFunction) callbackFunction(err, null);
			return;
		}

		connection.query(sqlCommand, function (error, result) {
			connection.release();
			if (error) {
				logger.error('________________________error_____________________');
				logger.error('sqlQuery: %s sqlCommand: %s', error.code, sqlCommand);
				logger.error(error);
				logger.error('_____________________end_error_____________________');
			}
			if (callbackFunction) callbackFunction(error, result);
		});
	});
};
\ No newline at end of file