114 lines
4 KiB
Python
114 lines
4 KiB
Python
#
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# Copyright (c) 2013 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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"""
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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.interface import implements
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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 cybertools.tracking.interfaces import ITrack
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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.organize.tracking.base import BaseRecordManager
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from loops.security.common import getCurrentPrincipal
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from loops import util
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class ChangeManager(BaseRecordManager):
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storageName = 'changes'
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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 valid(self):
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req = util.getRequest()
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if req and req.form.get('organize.suppress_tracking'):
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return False
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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.personId is None)
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and self.options('organize.tracking.changes'))
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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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last = self.storage.getLastUserTrack(uid, 0, self.personId)
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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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event = kw.get('event')
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if event is not None:
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desc = getattr(event, 'descriptions', ())
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for item in desc:
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if isinstance(item, dict):
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data.update(item)
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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, self.personId, data, update)
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class IChangeRecord(ITrack):
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pass
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class ChangeRecord(Track):
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implements(IChangeRecord)
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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(event=event)
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@adapter(ILoopsObject, IObjectAddedEvent)
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def recordAdding(obj, event):
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ChangeManager(obj).recordModification('add', event=event)
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@adapter(ILoopsObject, IAssignmentEvent)
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def recordAssignment(obj, event):
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ChangeManager(obj).recordModification('assign',
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event=event, 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',
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event=event, relation=event.relation)
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