Commit fcab1ded authored by Tim Peters's avatar Tim Peters

Merge rev 30307 from 3.4 branch.

ZApplication.py is moving to Zope trunk.
parent 3416d261
...@@ -3,6 +3,19 @@ What's new in ZODB3 3.5a0? ...@@ -3,6 +3,19 @@ What's new in ZODB3 3.5a0?
Release date: DD-MMM-YYYY Release date: DD-MMM-YYYY
What's new in ZODB3 3.4a8?
==========================
Release date: DD-May-2005
Another internal release, to move Zope 2.8 along.
ZApplication
------------
- The file ``ZApplication.py`` was moved, from ZODB to Zope(3). ZODB and
Zope3 don't use it, but Zope2 does.
What's new in ZODB3 3.4a7? What's new in ZODB3 3.4a7?
========================== ==========================
Release date: 06-May-2005 Release date: 06-May-2005
......
##############################################################################
#
# Copyright (c) 2001, 2002 Zope Corporation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE
#
##############################################################################
"""Implement an bobo_application object that is BoboPOS3 aware
This module provides a wrapper that causes a database connection to be created
and used when bobo publishes a bobo_application object.
"""
import transaction
connection_open_hooks = []
class ZApplicationWrapper:
def __init__(self, db, name, klass= None, klass_args= (),
version_cookie_name=None):
self._stuff = db, name, version_cookie_name
if klass is not None:
conn=db.open()
root=conn.root()
if not root.has_key(name):
root[name]=klass()
transaction.commit()
conn.close()
self._klass=klass
# This hack is to overcome a bug in Bobo!
def __getattr__(self, name):
return getattr(self._klass, name)
def __bobo_traverse__(self, REQUEST=None, name=None):
db, aname, version_support = self._stuff
if version_support is not None and REQUEST is not None:
version=REQUEST.get(version_support,'')
else: version=''
conn=db.open(version)
if connection_open_hooks:
for hook in connection_open_hooks:
hook(conn)
# arrange for the connection to be closed when the request goes away
cleanup = Cleanup(conn)
REQUEST._hold(cleanup)
conn.setDebugInfo(REQUEST.environ, REQUEST.other)
v=conn.root()[aname]
if name is not None:
if hasattr(v, '__bobo_traverse__'):
return v.__bobo_traverse__(REQUEST, name)
if hasattr(v,name): return getattr(v,name)
return v[name]
return v
def __call__(self, connection=None):
db, aname, version_support = self._stuff
if connection is None:
connection=db.open()
elif isinstance(connection, basestring):
connection=db.open(connection)
return connection.root()[aname]
class Cleanup:
def __init__(self, jar):
self._jar = jar
def __del__(self):
self._jar.close()
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