fd4be51425
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@2531 fd906abe-77d9-0310-91a1-e0d9ade77398
115 lines
3.8 KiB
Python
115 lines
3.8 KiB
Python
#
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# Copyright (c) 2008 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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Recording changes to loops objects.
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$Id$
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"""
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from zope.app.container.interfaces import IObjectAddedEvent, IObjectRemovedEvent
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from zope.app.container.interfaces import IObjectMovedEvent
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from zope.cachedescriptors.property import Lazy
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from zope.component import adapter
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from zope.lifecycleevent.interfaces import IObjectModifiedEvent, IObjectCreatedEvent
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from cybertools.meta.interfaces import IOptions
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from cybertools.tracking.btree import Track, getTimeStamp
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from loops.concept import ConceptManager
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from loops.resource import ResourceManager
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from loops.interfaces import IAssignmentEvent, IDeassignmentEvent
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from loops.interfaces import ILoopsObject
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from loops.organize.party import getPersonForUser
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from loops.security.common import getCurrentPrincipal
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from loops import util
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class ChangeManager(object):
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context = None
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def __init__(self, context):
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if isinstance(context, (ConceptManager, ResourceManager)):
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return
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self.context = context
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@Lazy
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def options(self):
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#return IOptions(self.context)
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return IOptions(self.loopsRoot)
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@Lazy
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def valid(self):
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return (not (self.context is None or
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self.storage is None or
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self.person is None)
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and 'changes' in self.options('organize.tracking', ()))
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@Lazy
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def loopsRoot(self):
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return self.context.getLoopsRoot()
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@Lazy
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def storage(self):
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records = self.loopsRoot.getRecordManager()
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if records is not None:
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return records.get('changes')
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return None
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@Lazy
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def person(self):
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principal = getCurrentPrincipal()
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if principal is not None:
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return getPersonForUser(self.context, principal=principal)
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return None
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def recordModification(self, action='modify', **kw):
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if not self.valid:
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return
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uid = util.getUidForObject(self.context)
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personUid = util.getUidForObject(self.person)
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last = self.storage.getLastUserTrack(uid, 0, personUid)
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update = (last is not None and last.data.get('action') == action and
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last.metadata['timeStamp'] >= getTimeStamp() - 5)
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data = dict(action=action)
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relation = kw.get('relation')
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if relation is not None:
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data['predicate'] = util.getUidForObject(relation.predicate)
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data['second'] = util.getUidForObject(relation.second)
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if update:
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self.storage.updateTrack(last, data)
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else:
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self.storage.saveUserTrack(uid, 0, personUid, data, update)
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class ChangeRecord(Track):
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typeName = 'ChangeRecord'
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@adapter(ILoopsObject, IObjectModifiedEvent)
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def recordModification(obj, event):
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ChangeManager(obj).recordModification()
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@adapter(ILoopsObject, IAssignmentEvent)
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def recordAssignment(obj, event):
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ChangeManager(obj).recordModification('assign', relation=event.relation)
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@adapter(ILoopsObject, IDeassignmentEvent)
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def recordDeassignment(obj, event):
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ChangeManager(obj).recordModification('deassign', relation=event.relation)
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