952cd7e9a8
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@1070 fd906abe-77d9-0310-91a1-e0d9ade77398
140 lines
4.1 KiB
Python
140 lines
4.1 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.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 loops.interfaces import IResource
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from loops.interfaces import 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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# proxies for accessing target objects from views/nodes
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class ConceptProxy(object):
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implements(IConcept)
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adapts(IConceptView)
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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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def getTitle(self): return self.target.title
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def setTitle(self, title): self.target.title = title
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title = property(getTitle, setTitle)
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def getSubConcepts(self, relationships=None):
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return self.target.getSubConcepts(relationships)
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def getParentConcepts(self, relationships=None):
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return self.target.getParentConcepts(relationships)
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class ResourceProxy(object):
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adapts(IView)
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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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def getTitle(self): return self.target.title
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def setTitle(self, title): self.target.title = title
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title = property(getTitle, setTitle)
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def setContentType(self, 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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@Lazy
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def target(self):
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return self.context.target
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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): 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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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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# source classes for target vocabularies
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class TargetSourceList(object):
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implements(schema.interfaces.IIterableSource)
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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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root = self.context.getLoopsRoot()
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self.resources = root.getResourceManager()
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self.concepts = root.getConceptManager()
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def __iter__(self):
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for obj in self.resources.values():
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yield obj
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for obj in self.concepts.values():
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yield obj
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#return iter(list(self.resources.values()) + list(self.concepts.values()))
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def __len__(self):
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return len(self.resources) + len(self.concepts)
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class QueryableTargetSource(object):
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implements(schema.interfaces.ISource)
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def __init__(self, context):
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self.context = context
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root = self.context.getLoopsRoot()
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self.resources = root.getResourceManager()
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self.concepts = root.getConceptManager()
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def __contains__(self, value):
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return value in self.resources.values() or value in self.concepts.values()
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