d7efbbdcdf
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@2236 fd906abe-77d9-0310-91a1-e0d9ade77398
117 lines
3.6 KiB
Python
117 lines
3.6 KiB
Python
#
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# Copyright (c) 2006 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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Adapter classes (proxies, in fact), for providing access to concepts and
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resources e.g. from forms that are called on view/node objects.
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$Id$
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"""
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from zope.app import zapi
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from zope.cachedescriptors.property import Lazy
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from zope.component import adapts
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from zope.i18nmessageid import MessageFactory
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from zope.interface import implements
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from zope import schema
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from zope.security.proxy import removeSecurityProxy
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from zope.lifecycleevent import ObjectModifiedEvent, Attributes
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from zope.event import notify
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from loops.interfaces import ILoopsObject, IResource, IDocument, IMediaAsset
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from loops.interfaces import IDocumentView, IMediaAssetView
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from loops.interfaces import IView
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from loops.interfaces import IConcept, IConceptView
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_ = MessageFactory('loops')
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# proxies for accessing target objects from views/nodes
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class TargetProxy(object):
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def __init__(self, context):
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#self.context = context
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self.context = removeSecurityProxy(context)
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@Lazy
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def target(self):
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return self.context.target
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def getTitle(self):
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return self.target.title
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def setTitle(self, title):
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self.target.title = title
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notify(ObjectModifiedEvent(self.target,
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Attributes(ILoopsObject, 'title')))
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title = property(getTitle, setTitle)
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class ConceptProxy(TargetProxy):
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implements(IConcept)
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adapts(IConceptView)
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def getConceptType(self): return self.target.conceptType
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def setConceptType(self, conceptType):
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self.target.conceptType = conceptType
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notify(ObjectModifiedEvent(self.target, Attributes(IConcept, 'conceptType')))
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conceptType = property(getConceptType, setConceptType)
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def getChildren(self, predicates=None):
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return self.target.getChildren(predicates)
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def getParents(self, predicates=None):
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return self.target.getParents(predicates)
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def getResources(self, predicates=None):
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return self.target.getResources(predicates)
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class ResourceProxy(TargetProxy):
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def setContentType(self, contentType):
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notify(ObjectModifiedEvent(self.target, Attributes(IResource, 'contentType')))
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self.target.contentType = contentType
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def getContentType(self): return self.target.contentType
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contentType = property(getContentType, setContentType)
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class DocumentProxy(ResourceProxy):
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implements(IDocument)
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adapts(IDocumentView)
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def setData(self, data):
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self.target.data = data
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notify(ObjectModifiedEvent(self.target, Attributes(IDocument, 'data')))
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def getData(self): return self.target.data
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data = property(getData, setData)
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class MediaAssetProxy(ResourceProxy):
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implements(IMediaAsset)
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adapts(IMediaAssetView)
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def setData(self, data): self.target.data = data
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def getData(self): return self.target.data
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data = property(getData, setData)
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