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- ##############################################################################
- #
- # Zope Public License (ZPL) Version 1.0
- # -------------------------------------
- #
- # Copyright (c) Digital Creations. All rights reserved.
- #
- # This license has been certified as Open Source(tm).
- #
- # Redistribution and use in source and binary forms, with or without
- # modification, are permitted provided that the following conditions are
- # met:
- #
- # 1. Redistributions in source code must retain the above copyright
- # notice, this list of conditions, and the following disclaimer.
- #
- # 2. Redistributions in binary form must reproduce the above copyright
- # notice, this list of conditions, and the following disclaimer in
- # the documentation and/or other materials provided with the
- # distribution.
- #
- # 3. Digital Creations requests that attribution be given to Zope
- # in any manner possible. Zope includes a "Powered by Zope"
- # button that is installed by default. While it is not a license
- # violation to remove this button, it is requested that the
- # attribution remain. A significant investment has been put
- # into Zope, and this effort will continue if the Zope community
- # continues to grow. This is one way to assure that growth.
- #
- # 4. All advertising materials and documentation mentioning
- # features derived from or use of this software must display
- # the following acknowledgement:
- #
- # "This product includes software developed by Digital Creations
- # for use in the Z Object Publishing Environment
- # (http://www.zope.org/)."
- #
- # In the event that the product being advertised includes an
- # intact Zope distribution (with copyright and license included)
- # then this clause is waived.
- #
- # 5. Names associated with Zope or Digital Creations must not be used to
- # endorse or promote products derived from this software without
- # prior written permission from Digital Creations.
- #
- # 6. Modified redistributions of any form whatsoever must retain
- # the following acknowledgment:
- #
- # "This product includes software developed by Digital Creations
- # for use in the Z Object Publishing Environment
- # (http://www.zope.org/)."
- #
- # Intact (re-)distributions of any official Zope release do not
- # require an external acknowledgement.
- #
- # 7. Modifications are encouraged but must be packaged separately as
- # patches to official Zope releases. Distributions that do not
- # clearly separate the patches from the original work must be clearly
- # labeled as unofficial distributions. Modifications which do not
- # carry the name Zope may be packaged in any form, as long as they
- # conform to all of the clauses above.
- #
- #
- # Disclaimer
- #
- # THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
- # EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DIGITAL CREATIONS OR ITS
- # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- # OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- # SUCH DAMAGE.
- #
- #
- # This software consists of contributions made by Digital Creations and
- # many individuals on behalf of Digital Creations. Specific
- # attributions are listed in the accompanying credits file.
- #
- ##############################################################################
- __doc__='''short description
-
- $Id: Undo.py,v 1.21.4.1 2000/06/20 19:28:39 brian Exp $'''
- __version__='$Revision: 1.21.4.1 $'[11:-2]
-
- import Globals, ExtensionClass
- from DateTime import DateTime
- from string import atof, find, atoi, split, rfind, join
- from AccessControl import getSecurityManager
-
- class UndoSupport(ExtensionClass.Base):
-
- __ac_permissions__=(
- ('Undo changes', (
- 'manage_undo_transactions', 'undoable_transactions',
- 'manage_UndoForm',
- )),
- )
-
- manage_options=(
- {'label':'Undo', 'action':'manage_UndoForm',
- 'help':('OFSP','Undo.stx')},
- )
-
- manage_UndoForm=Globals.HTMLFile(
- 'undo', globals(),
- PrincipiaUndoBatchSize=20,
- first_transaction=0, last_transaction=20)
-
- def get_request_var_or_attr(self, name, default):
- if hasattr(self, 'REQUEST'):
- REQUEST=self.REQUEST
- if REQUEST.has_key(name): return REQUEST[name]
- if hasattr(self, name): v=getattr(self, name)
- else: v=default
- REQUEST[name]=v
- return v
- else:
- if hasattr(self, name): v=getattr(self, name)
- else: v=default
- return v
-
- def undoable_transactions(self, first_transaction=None,
- last_transaction=None,
- PrincipiaUndoBatchSize=None):
-
- if first_transaction is None:
- first_transaction=self.get_request_var_or_attr(
- 'first_transaction', 0)
-
- if PrincipiaUndoBatchSize is None:
- PrincipiaUndoBatchSize=self.get_request_var_or_attr(
- 'PrincipiaUndoBatchSize', 20)
-
- if last_transaction is None:
- last_transaction=self.get_request_var_or_attr(
- 'last_transaction',
- first_transaction+PrincipiaUndoBatchSize)
-
- spec={}
-
- # A user is allowed to undo transactions that were initiated
- # by any member of a user folder in the place where the user
- # is defined.
- user = getSecurityManager().getUser()
- if hasattr(user, 'aq_parent'):
- path = join(user.aq_parent.getPhysicalPath()[1:-1], '/')
- else:
- path=''
- if path: spec['user_name']=Prefix(path)
-
- # We also only want to undo things done here
- opath=join(self.getPhysicalPath(),'/')
- if opath: spec['description']=Prefix(opath)
-
- r=Globals.UndoManager.undoInfo(
- first_transaction, last_transaction, spec)
-
- for d in r: d['time']=DateTime(d['time'])
-
- return r
-
- def manage_undo_transactions(self, transaction_info, REQUEST=None):
- """
- """
- undo=Globals.UndoManager.undo
- for i in transaction_info: undo(i)
-
-
- if REQUEST is None: return
- REQUEST['RESPONSE'].redirect("%s/manage_main" % REQUEST['URL1'])
- return ''
-
- Globals.default__class_init__(UndoSupport)
-
-
- class Prefix:
-
- __no_side_effects__=1
-
- def __init__(self, path):
- self.value = len(path), path
-
- def __cmp__(self, o):
- l,v = self.value
- rval = cmp(o[:l],v)
- return rval
-
-
-