[Zope3-checkins] CVS: Zope3/src/zope/app/undo - __init__.py:1.2 undo.py:NONE

[Philipp von Weitershausen]

Update of /cvs-repository/Zope3/src/zope/app/undo
In directory cvs.zope.org:/tmp/cvs-serv23722

Modified Files:
	__init__.py 
Removed Files:
	undo.py 
Log Message:
Moved zope.app.undo.undo to zope.app.undo.


=== Zope3/src/zope/app/undo/__init__.py 1.1 => 1.2 ===
--- Zope3/src/zope/app/undo/__init__.py:1.1	Mon Mar  1 09:16:56 2004
+++ Zope3/src/zope/app/undo/__init__.py	Fri Mar 19 13:34:01 2004
@@ -1 +1,72 @@
-# make this directory a package
+##############################################################################
+#
+# Copyright (c) 2001, 2002 Zope Corporation and Contributors.
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.0 (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.
+#
+##############################################################################
+"""
+$Id$
+"""
+from datetime import datetime
+from zope.interface import implements
+
+from zope.app import zapi
+from zope.app.event import function
+from zope.app.undo.interfaces import IUndoManager
+from zope.app.servicenames import Utilities
+
+def undoSetup(event):
+    # setup undo functionality
+    svc = zapi.getService(None, Utilities)
+    svc.provideUtility(IUndoManager, ZODBUndoManager(event.database))
+
+undoSetup = function.Subscriber(undoSetup)
+
+class ZODBUndoManager:
+    """Implement the basic undo management api for a single ZODB database."""
+    implements(IUndoManager)
+
+    def __init__(self, db):
+        self.__db = db
+
+    def getUndoInfo(self, first=0, last=-20, user_name=None):
+        """See zope.app.undo.interfaces.IUndoManager"""
+
+        # Entries are a list of dictionaries, containing
+        # id          -> internal id for zodb
+        # user_name   -> name of user that last accessed the file
+        # time        -> unix timestamp of last access
+        # description -> transaction description
+
+        if user_name is not None:
+            # XXX The 'user' in the transactions is a concatenation of
+            # 'path' and 'user' (id). 'path' used to be the path of
+            # the user folder in Zope 2. ZopePublication currently
+            # does not set a path, so it defaults to '/'. Maybe we can
+            # find a new meaning for 'path' in Zope 3 (the principal
+            # source?)
+            path = '/' # default for now
+            specification = {'user_name': path + ' ' + user_name}
+        else:
+            specification = None
+        entries = self.__db.undoInfo(first, last, specification)
+
+        # We walk through the entries, augmenting the dictionaries 
+        # with some additional items (at the moment, datetime, a useful 
+        # form of the unix timestamp).
+        for e in entries:
+            e['datetime'] = datetime.fromtimestamp(e['time'])
+        return entries
+
+    def undoTransaction(self, id_list):
+        '''See zope.app.undo.interfaces.IUndoManager'''
+
+        for id in id_list:
+            self.__db.undo(id)

=== Removed File Zope3/src/zope/app/undo/undo.py ===