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# mysql/cymysql.py
# Copyright (C) 2005-2013 the SQLAlchemy authors and contributors <see AUTHORS file>
#
# This module is part of SQLAlchemy and is released under
# the MIT License: http://www.opensource.org/licenses/mit-license.php
"""
.. dialect:: mysql+cymysql
:name: CyMySQL
:dbapi: cymysql
:connectstring: mysql+cymysql://<username>:<password>@<host>/<dbname>[?<options>]
:url: https://github.com/nakagami/CyMySQL
"""
from .mysqldb import MySQLDialect_mysqldb
from .base import (BIT, MySQLDialect)
from ... import util
class _cymysqlBIT(BIT):
def result_processor(self, dialect, coltype):
"""Convert a MySQL's 64 bit, variable length binary string to a long.
"""
def process(value):
if value is not None:
# Py2K
value = 0L
for i in map(ord, value):
value = value << 8 | i
# end Py2K
# Py3K
#value = 0
#for i in value:
# value = value << 8 | i
return value
return process
class MySQLDialect_cymysql(MySQLDialect_mysqldb):
driver = 'cymysql'
description_encoding = None
colspecs = util.update_copy(
MySQLDialect.colspecs,
{
BIT: _cymysqlBIT,
}
)
@classmethod
def dbapi(cls):
return __import__('cymysql')
def _extract_error_code(self, exception):
# Py2K
return exception[0]
# end Py2K
# Py3K
#return exception.args[0].args[0]
dialect = MySQLDialect_cymysql
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