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This commit is contained in:
Ruud
2012-02-11 16:28:06 +01:00
parent 3bbf1126c3
commit 02e01fb2d6
217 changed files with 26395 additions and 21194 deletions
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libs/sqlalchemy/dialects/mssql/pyodbc.py
+32 -17
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@@ -1,5 +1,5 @@
# mssql/pyodbc.py
# Copyright (C) 2005-2011 the SQLAlchemy authors and contributors <see AUTHORS file>
# Copyright (C) 2005-2012 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
@@ -35,27 +35,31 @@ Examples of pyodbc connection string URLs:
dsn=mydsn;UID=user;PWD=pass;LANGUAGE=us_english
* ``mssql+pyodbc://user:pass@host/db`` - connects using a connection string
dynamically created that would appear like::
* ``mssql+pyodbc://user:pass@host/db`` - connects using a connection
that would appear like::
DRIVER={SQL Server};Server=host;Database=db;UID=user;PWD=pass
* ``mssql+pyodbc://user:pass@host:123/db`` - connects using a connection
string that is dynamically created, which also includes the port
information using the comma syntax. If your connection string
requires the port information to be passed as a ``port`` keyword
see the next example. This will create the following connection
string::
string which includes the port
information using the comma syntax. This will create the following
connection string::
DRIVER={SQL Server};Server=host,123;Database=db;UID=user;PWD=pass
* ``mssql+pyodbc://user:pass@host/db?port=123`` - connects using a connection
string that is dynamically created that includes the port
string that includes the port
information as a separate ``port`` keyword. This will create the
following connection string::
DRIVER={SQL Server};Server=host;Database=db;UID=user;PWD=pass;port=123
* ``mssql+pyodbc://user:pass@host/db?driver=MyDriver`` - connects using a connection
string that includes a custom
ODBC driver name. This will create the following connection string::
DRIVER={MyDriver};Server=host;Database=db;UID=user;PWD=pass
If you require a connection string that is outside the options
presented above, use the ``odbc_connect`` keyword to pass in a
urlencoded connection string. What gets passed in will be urldecoded
@@ -94,7 +98,12 @@ class _MSNumeric_pyodbc(sqltypes.Numeric):
"""
def bind_processor(self, dialect):
super_process = super(_MSNumeric_pyodbc, self).bind_processor(dialect)
super_process = super(_MSNumeric_pyodbc, self).\
bind_processor(dialect)
if not dialect._need_decimal_fix:
return super_process
def process(value):
if self.asdecimal and \
@@ -112,31 +121,35 @@ class _MSNumeric_pyodbc(sqltypes.Numeric):
return value
return process
# these routines needed for older versions of pyodbc.
# as of 2.1.8 this logic is integrated.
def _small_dec_to_string(self, value):
return "%s0.%s%s" % (
(value < 0 and '-' or ''),
'0' * (abs(value.adjusted()) - 1),
"".join([str(nint) for nint in value._int]))
"".join([str(nint) for nint in value.as_tuple()[1]]))
def _large_dec_to_string(self, value):
_int = value.as_tuple()[1]
if 'E' in str(value):
result = "%s%s%s" % (
(value < 0 and '-' or ''),
"".join([str(s) for s in value._int]),
"0" * (value.adjusted() - (len(value._int)-1)))
"".join([str(s) for s in _int]),
"0" * (value.adjusted() - (len(_int)-1)))
else:
if (len(value._int) - 1) > value.adjusted():
if (len(_int) - 1) > value.adjusted():
result = "%s%s.%s" % (
(value < 0 and '-' or ''),
"".join(
[str(s) for s in value._int][0:value.adjusted() + 1]),
[str(s) for s in _int][0:value.adjusted() + 1]),
"".join(
[str(s) for s in value._int][value.adjusted() + 1:]))
[str(s) for s in _int][value.adjusted() + 1:]))
else:
result = "%s%s" % (
(value < 0 and '-' or ''),
"".join(
[str(s) for s in value._int][0:value.adjusted() + 1]))
[str(s) for s in _int][0:value.adjusted() + 1]))
return result
@@ -206,5 +219,7 @@ class MSDialect_pyodbc(PyODBCConnector, MSDialect):
self.description_encoding = description_encoding
self.use_scope_identity = self.dbapi and \
hasattr(self.dbapi.Cursor, 'nextset')
self._need_decimal_fix = self.dbapi and \
self._dbapi_version() < (2, 1, 8)
dialect = MSDialect_pyodbc