mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-09-21 11:18:49 +03:00
87 lines
2.7 KiB
Python
87 lines
2.7 KiB
Python
"""psycopg 1.1.x compatibility module
|
|
|
|
This module uses the new style connection and cursor types to build a psycopg
|
|
1.1.1.x compatibility layer. It should be considered a temporary hack to run
|
|
old code hile porting to psycopg 2. Import as follows:
|
|
|
|
from psycopg import psycopg1 as psycopg
|
|
"""
|
|
# psycopg/psycopg1.py - psycopg 1.1.x compatibility module
|
|
#
|
|
# Copyright (C) 2003-2004 Federico Di Gregorio <fog@debian.org>
|
|
#
|
|
# 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; either version 2, or (at your option) any later
|
|
# version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful, but
|
|
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY
|
|
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
# for more details.
|
|
|
|
import _psycopg as _2psycopg
|
|
from psycopg2.extensions import cursor as _2cursor
|
|
from psycopg2.extensions import connection as _2connection
|
|
|
|
from psycopg2 import *
|
|
del connect
|
|
|
|
|
|
def connect(*args, **kwargs):
|
|
"""connect(dsn, ...) -> new psycopg 1.1.x compatible connection object"""
|
|
kwargs['connection_factory'] = connection
|
|
return _2psycopg.connect(*args, **kwargs)
|
|
|
|
|
|
class connection(_2connection):
|
|
"""psycopg 1.1.x connection."""
|
|
|
|
def cursor(self):
|
|
"""cursor() -> new psycopg 1.1.x compatible cursor object"""
|
|
return _2connection.cursor(self, cursor_factory=cursor)
|
|
|
|
def autocommit(self, on_off=1):
|
|
"""autocommit(on_off=1) -> switch autocommit on (1) or off (0)"""
|
|
if on_off > 0:
|
|
self.set_isolation_level(0)
|
|
else:
|
|
self.set_isolation_level(2)
|
|
|
|
|
|
class cursor(_2cursor):
|
|
"""psycopg 1.1.x cursor.
|
|
|
|
Note that this cursor implements the exact procedure used by psycopg 1 to
|
|
build dictionaries out of result rows. The DictCursor in the
|
|
psycopg.extras modules implements a much better and faster algorithm.
|
|
"""
|
|
|
|
def __build_dict(self, row):
|
|
res = {}
|
|
for i in range(len(self.description)):
|
|
res[self.description[i][0]] = row[i]
|
|
return res
|
|
|
|
def dictfetchone(self):
|
|
row = _2cursor.fetchone(self)
|
|
if row:
|
|
return self.__build_dict(row)
|
|
else:
|
|
return row
|
|
|
|
def dictfetchmany(self, size):
|
|
res = []
|
|
rows = _2cursor.fetchmany(self, size)
|
|
for row in rows:
|
|
res.append(self.__build_dict(row))
|
|
return res
|
|
|
|
def dictfetchall(self):
|
|
res = []
|
|
rows = _2cursor.fetchall(self)
|
|
for row in rows:
|
|
res.append(self.__build_dict(row))
|
|
return res
|
|
|