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📄 __init__.py(278 B)
📄 __init__.pyc(405 B)
📄 __init__.pyo(405 B)
📄 mxodbc.py(5.22 KB)
📄 mxodbc.pyc(6.21 KB)
📄 mxodbc.pyo(6.21 KB)
📄 pyodbc.py(6.43 KB)
📄 pyodbc.pyc(5.78 KB)
📄 pyodbc.pyo(5.78 KB)
📄 zxJDBC.py(1.82 KB)
📄 zxJDBC.pyc(2.65 KB)
📄 zxJDBC.pyo(2.65 KB)

Editing: pyodbc.py

# connectors/pyodbc.py
# Copyright (C) 2005-2017 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

from . import Connector
from .. import util

import sys
import re

class PyODBCConnector(Connector):
    driver = 'pyodbc'

supports_sane_multi_rowcount = False

if util.py2k:
        # PyODBC unicode is broken on UCS-4 builds
        supports_unicode = sys.maxunicode == 65535
        supports_unicode_statements = supports_unicode

supports_native_decimal = True
    default_paramstyle = 'named'

# for non-DSN connections, this *may* be used to
    # hold the desired driver name
    pyodbc_driver_name = None

# will be set to True after initialize()
    # if the freetds.so is detected
    freetds = False

# will be set to the string version of
    # the FreeTDS driver if freetds is detected
    freetds_driver_version = None

# will be set to True after initialize()
    # if the libessqlsrv.so is detected
    easysoft = False

def __init__(self, supports_unicode_binds=None, **kw):
        super(PyODBCConnector, self).__init__(**kw)
        self._user_supports_unicode_binds = supports_unicode_binds

@classmethod
    def dbapi(cls):
        return __import__('pyodbc')

def create_connect_args(self, url):
        opts = url.translate_connect_args(username='user')
        opts.update(url.query)

keys = opts

query = url.query

connect_args = {}
        for param in ('ansi', 'unicode_results', 'autocommit'):
            if param in keys:
                connect_args[param] = util.asbool(keys.pop(param))

if 'odbc_connect' in keys:
            connectors = [util.unquote_plus(keys.pop('odbc_connect'))]
        else:
            def check_quote(token):
                if ";" in str(token):
                    token = "'%s'" % token
                return token

keys = dict(
                (k, check_quote(v)) for k, v in keys.items()
            )

dsn_connection = 'dsn' in keys or \
                ('host' in keys and 'database' not in keys)
            if dsn_connection:
                connectors = ['dsn=%s' % (keys.pop('host', '') or
                                          keys.pop('dsn', ''))]
            else:
                port = ''
                if 'port' in keys and 'port' not in query:
                    port = ',%d' % int(keys.pop('port'))

connectors = []
                driver = keys.pop('driver', self.pyodbc_driver_name)
                if driver is None:
                    util.warn(
                        "No driver name specified; "
                        "this is expected by PyODBC when using "
                        "DSN-less connections")
                else:
                    connectors.append("DRIVER={%s}" % driver)

connectors.extend(
                    [
                        'Server=%s%s' % (keys.pop('host', ''), port),
                        'Database=%s' % keys.pop('database', '')
                    ])

user = keys.pop("user", None)
            if user:
                connectors.append("UID=%s" % user)
                connectors.append("PWD=%s" % keys.pop('password', ''))
            else:
                connectors.append("Trusted_Connection=Yes")

# if set to 'Yes', the ODBC layer will try to automagically
            # convert textual data from your database encoding to your
            # client encoding.  This should obviously be set to 'No' if
            # you query a cp1253 encoded database from a latin1 client...
            if 'odbc_autotranslate' in keys:
                connectors.append("AutoTranslate=%s" %
                                  keys.pop("odbc_autotranslate"))

connectors.extend(['%s=%s' % (k, v) for k, v in keys.items()])

return [[";".join(connectors)], connect_args]

def is_disconnect(self, e, connection, cursor):
        if isinstance(e, self.dbapi.ProgrammingError):
            return "The cursor's connection has been closed." in str(e) or \
                'Attempt to use a closed connection.' in str(e)
        else:
            return False

def initialize(self, connection):
        # determine FreeTDS first.   can't issue SQL easily
        # without getting unicode_statements/binds set up.

pyodbc = self.dbapi

dbapi_con = connection.connection

_sql_driver_name = dbapi_con.getinfo(pyodbc.SQL_DRIVER_NAME)
        self.freetds = bool(re.match(r".*libtdsodbc.*\.so", _sql_driver_name
                                     ))
        self.easysoft = bool(re.match(r".*libessqlsrv.*\.so", _sql_driver_name
                                      ))

if self.freetds:
            self.freetds_driver_version = dbapi_con.getinfo(
                pyodbc.SQL_DRIVER_VER)

self.supports_unicode_statements = (
            not util.py2k or
            (not self.freetds and not self.easysoft)
        )

if self._user_supports_unicode_binds is not None:
            self.supports_unicode_binds = self._user_supports_unicode_binds
        elif util.py2k:
            self.supports_unicode_binds = (
                not self.freetds or self.freetds_driver_version >= '0.91'
            ) and not self.easysoft
        else:
            self.supports_unicode_binds = True

# run other initialization which asks for user name, etc.
        super(PyODBCConnector, self).initialize(connection)

def _dbapi_version(self):
        if not self.dbapi:
            return ()
        return self._parse_dbapi_version(self.dbapi.version)

def _parse_dbapi_version(self, vers):
        m = re.match(
            r'(?:py.*-)?([\d\.]+)(?:-(\w+))?',
            vers
        )
        if not m:
            return ()
        vers = tuple([int(x) for x in m.group(1).split(".")])
        if m.group(2):
            vers += (m.group(2),)
        return vers

def _get_server_version_info(self, connection):
        # NOTE: this function is not reliable, particularly when
        # freetds is in use.   Implement database-specific server version
        # queries.
        dbapi_con = connection.connection
        version = []
        r = re.compile(r'[.\-]')
        for n in r.split(dbapi_con.getinfo(self.dbapi.SQL_DBMS_VER)):
            try:
                version.append(int(n))
            except ValueError:
                version.append(n)
        return tuple(version)

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