misc/cwzope/cwzope.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Wed, 09 Dec 2009 18:24:18 +0100
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"""
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:organization: Logilab
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:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
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"""
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from AccessControl import getSecurityManager
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from cubicweb.dbapi import connect, Connection, Cursor
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from cubicweb.common.utils import ResultSet, ResultSetIterator, ResultSetRow, Entity
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Connection.__allow_access_to_unprotected_subobjects__ = 1
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Cursor.__allow_access_to_unprotected_subobjects__ = 1
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ResultSet.__allow_access_to_unprotected_subobjects__ = 1
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ResultSetIterator.__allow_access_to_unprotected_subobjects__ = 1
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ResultSetRow.__allow_access_to_unprotected_subobjects__ = 1
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Entity.__allow_access_to_unprotected_subobjects__ = 1
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CNX_CACHE = {}
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def get_connection(context, user=None, password=None,
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                   host=None, database=None, group='cubicweb'):
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    """get a connection on an cubicweb server"""
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    request = context.REQUEST
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    zope_user = getSecurityManager().getUser()
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    if user is None:
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        user = zope_user.getId()
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    key = (user, host, database)
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    try:
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        return CNX_CACHE[key]
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    except KeyError:
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        if password is None:
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            password = zope_user._getPassword()
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        cnx = connect(user, password, host, database, group)
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        CNX_CACHE[key] = cnx
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        return cnx
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