mysql5/mysql-5.7.27/storage/ndb/nodejs/Converters/NdbDatetimeConverter.js

57 lines
1.8 KiB
JavaScript

/*
Copyright (c) 2013, Oracle and/or its affiliates. All rights
reserved.
This program 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; version 2 of
the License.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
*/
/**********************
This is the standard TypeConverter class used with DATETIME columns
in the Ndb Adapter.
DATETIME columns are read and written using a MySQLTime structure,
which provides lossless interchange.
This Converter converts between MySQLTime and standard JavaScript Date.
While convenient, such a conversion can result in lost precision.
JavaSCript Date supports millisecond precision, while MySQL DATETIME
can support up to microsecond precision.
An application can override this converter and use MySQLTime directly:
sessionFactory.registerTypeConverter("DATETIME", null);
Or replace this converter with a custom one:
sessionFactory.registerTypeConverter("DATETIME", myConverterClass);
************************/
var path = require("path"),
MySQLTime = require(path.join(mynode.fs.spi_dir,"common","MySQLTime.js")),
udebug = unified_debug.getLogger("NdbDatetimeConverter.js");
exports.toDB = function(jsdate) {
return new MySQLTime().initializeFromJsDateLocal(jsdate);
};
exports.fromDB = function(dbTime) {
return MySQLTime.initializeFromNdb(dbTime).toJsDateLocal();
};