65 lines
2.1 KiB
Python
65 lines
2.1 KiB
Python
# mssql/zxjdbc.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:: mssql+zxjdbc
|
|
:name: zxJDBC for Jython
|
|
:dbapi: zxjdbc
|
|
:connectstring: mssql+zxjdbc://user:pass@host:port/dbname[?key=value&key=value...]
|
|
:driverurl: http://jtds.sourceforge.net/
|
|
|
|
|
|
"""
|
|
from ...connectors.zxJDBC import ZxJDBCConnector
|
|
from .base import MSDialect, MSExecutionContext
|
|
from ... import engine
|
|
|
|
|
|
class MSExecutionContext_zxjdbc(MSExecutionContext):
|
|
|
|
_embedded_scope_identity = False
|
|
|
|
def pre_exec(self):
|
|
super(MSExecutionContext_zxjdbc, self).pre_exec()
|
|
# scope_identity after the fact returns null in jTDS so we must
|
|
# embed it
|
|
if self._select_lastrowid and self.dialect.use_scope_identity:
|
|
self._embedded_scope_identity = True
|
|
self.statement += "; SELECT scope_identity()"
|
|
|
|
def post_exec(self):
|
|
if self._embedded_scope_identity:
|
|
while True:
|
|
try:
|
|
row = self.cursor.fetchall()[0]
|
|
break
|
|
except self.dialect.dbapi.Error:
|
|
self.cursor.nextset()
|
|
self._lastrowid = int(row[0])
|
|
|
|
if (self.isinsert or self.isupdate or self.isdelete) and \
|
|
self.compiled.returning:
|
|
self._result_proxy = engine.FullyBufferedResultProxy(self)
|
|
|
|
if self._enable_identity_insert:
|
|
table = self.dialect.identifier_preparer.format_table(
|
|
self.compiled.statement.table)
|
|
self.cursor.execute("SET IDENTITY_INSERT %s OFF" % table)
|
|
|
|
|
|
class MSDialect_zxjdbc(ZxJDBCConnector, MSDialect):
|
|
jdbc_db_name = 'jtds:sqlserver'
|
|
jdbc_driver_name = 'net.sourceforge.jtds.jdbc.Driver'
|
|
|
|
execution_ctx_cls = MSExecutionContext_zxjdbc
|
|
|
|
def _get_server_version_info(self, connection):
|
|
return tuple(
|
|
int(x)
|
|
for x in connection.connection.dbversion.split('.')
|
|
)
|
|
|
|
dialect = MSDialect_zxjdbc
|