73c33a108e
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@1111 fd906abe-77d9-0310-91a1-e0d9ade77398
285 lines
9.9 KiB
Python
285 lines
9.9 KiB
Python
#
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# Copyright (c) 2004 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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Definition of the Task view class.
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$Id$
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"""
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from zope.app import zapi
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from zope.app.catalog.interfaces import ICatalog
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from zope.app.dublincore.interfaces import ICMFDublinCore
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from zope.app.event.objectevent import ObjectCreatedEvent
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from zope.app.form.browser.interfaces import ITerms
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from zope.cachedescriptors.property import Lazy
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from zope.dottedname.resolve import resolve
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from zope.event import notify
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from zope.interface import implements
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from zope.publisher.interfaces import BadRequest
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from zope.publisher.interfaces.browser import IBrowserRequest
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from zope import schema
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from zope.schema.interfaces import IIterableSource
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from zope.security.proxy import removeSecurityProxy
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from loops.interfaces import IConcept
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from loops.concept import Concept, ConceptTypeSourceList, PredicateSourceList
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from loops.resource import getResourceTypes, getResourceTypesForSearch
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from loops.target import getTargetTypes
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from loops.browser.common import BaseView, LoopsTerms
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from loops import util
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class ConceptView(BaseView):
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def children(self):
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for r in self.context.getChildRelations():
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yield ConceptRelationView(r, self.request, contextIsSecond=True)
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def parents(self):
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for r in self.context.getParentRelations():
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yield ConceptRelationView(r, self.request)
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def resources(self):
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for r in self.context.getResourceRelations():
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yield ConceptResourceRelationView(r, self.request, contextIsSecond=True)
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class ConceptConfigureView(ConceptView):
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def update(self):
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request = self.request
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action = request.get('action')
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if action is None:
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return True
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if action == 'create':
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self.createAndAssign()
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return True
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tokens = request.get('tokens', [])
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for token in tokens:
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parts = token.split(':')
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token = parts[0]
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if len(parts) > 1:
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relToken = parts[1]
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concept = self.loopsRoot.loopsTraverse(token)
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if action == 'assign':
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assignAs = request.get('assignAs', 'child')
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predicate = request.get('predicate') or None
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if predicate:
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predicate = removeSecurityProxy(
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self.loopsRoot.loopsTraverse(predicate))
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if assignAs == 'child':
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self.context.assignChild(removeSecurityProxy(concept), predicate)
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elif assignAs == 'parent':
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self.context.assignParent(removeSecurityProxy(concept), predicate)
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elif assignAs == 'resource':
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self.context.assignResource(removeSecurityProxy(concept), predicate)
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else:
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raise(BadRequest, 'Illegal assignAs parameter: %s.' % assignAs)
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elif action == 'remove':
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predicate = self.loopsRoot.loopsTraverse(relToken)
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qualifier = request.get('qualifier')
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if qualifier == 'parents':
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self.context.deassignParent(concept, [predicate])
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elif qualifier == 'children':
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self.context.deassignChild(concept, [predicate])
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elif qualifier == 'resources':
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self.context.deassignResource(concept, [predicate])
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elif qualifier == 'concepts':
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self.context.deassignConcept(concept, [predicate])
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else:
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raise(BadRequest, 'Illegal qualifier: %s.' % qualifier)
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else:
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raise(BadRequest, 'Illegal action: %s.' % action)
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return True
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def createAndAssign(self):
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request = self.request
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name = request.get('create.name')
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if not name:
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raise(BadRequest, 'Empty name.')
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title = request.get('create.title', u'')
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conceptType = request.get('create.type')
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if conceptType and conceptType.startswith('loops.resource.'):
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factory = resolve(conceptType)
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concept = factory(title)
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container = self.loopsRoot.getResourceManager()
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else:
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concept = Concept(title)
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container = self.loopsRoot.getConceptManager()
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container[name] = concept
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if conceptType:
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ctype = self.loopsRoot.loopsTraverse(conceptType)
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concept.conceptType = ctype
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notify(ObjectCreatedEvent(removeSecurityProxy(concept)))
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assignAs = self.request.get('assignAs', 'child')
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predicate = request.get('create.predicate') or None
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if predicate:
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predicate = removeSecurityProxy(
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self.loopsRoot.loopsTraverse(predicate))
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if assignAs == 'child':
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self.context.assignChild(removeSecurityProxy(concept), predicate)
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elif assignAs == 'parent':
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self.context.assignParent(removeSecurityProxy(concept), predicate)
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elif assignAs == 'resource':
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self.context.assignResource(removeSecurityProxy(concept), predicate)
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elif assignAs == 'concept':
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self.context.assignConcept(removeSecurityProxy(concept), predicate)
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else:
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raise(BadRequest, 'Illegal assignAs parameter: %s.' % assignAs)
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def search(self):
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request = self.request
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if request.get('action') != 'search':
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return []
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searchTerm = request.get('searchTerm', None)
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searchType = request.get('searchType', None)
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result = []
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if searchTerm or searchType != 'none':
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criteria = {}
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if searchTerm:
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criteria['loops_title'] = searchTerm
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if searchType:
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if searchType.endswith('*'):
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start = searchType[:-1]
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end = start + '\x7f'
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else:
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start = end = searchType
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criteria['loops_type'] = (start, end)
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cat = zapi.getUtility(ICatalog)
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result = cat.searchResults(**criteria)
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else:
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result = self.loopsRoot.getConceptManager().values()
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if searchType == 'none':
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result = [r for r in result if r.conceptType is None]
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return self.viewIterator(result)
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@Lazy
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def typeTitle(self):
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return self.context.conceptType.title
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@Lazy
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def typeUrl(self):
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return zapi.absoluteURL(self.context.conceptType, self.request)
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def viewIterator(self, objs):
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request = self.request
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for o in objs:
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if IConcept.providedBy(o):
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yield ConceptConfigureView(o, request)
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else:
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yield BaseView(o, request)
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def conceptTypes(self):
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types = ConceptTypeSourceList(self.context)
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terms = zapi.getMultiAdapter((types, self.request), ITerms)
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for type in types:
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yield terms.getTerm(type)
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def conceptTypesForSearch(self):
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types = ConceptTypeSourceList(self.context)
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typesItems = [(':'.join(('loops:concept',
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self.getConceptTypeTokenForSearch(t))), t.title)
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for t in types]
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return util.KeywordVocabulary(typesItems)
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def getConceptTypeTokenForSearch(self, ct):
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return ct is None and 'unknown' or zapi.getName(ct)
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def resourceTypes(self):
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return util.KeywordVocabulary(getResourceTypes())
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def resourceTypesForSearch(self):
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return util.KeywordVocabulary(getResourceTypesForSearch())
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def predicates(self):
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preds = PredicateSourceList(self.context)
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terms = zapi.getMultiAdapter((preds, self.request), ITerms)
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for pred in preds:
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yield terms.getTerm(pred)
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class ConceptRelationView(object):
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def __init__(self, relation, request, contextIsSecond=False):
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if contextIsSecond:
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self.context = relation.second
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self.other = relation.first
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else:
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self.context = relation.first
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self.other = relation.second
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self.predicate = relation.predicate
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self.request = request
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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 url(self):
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return zapi.absoluteURL(self.context, self.request)
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@Lazy
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def title(self):
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return self.context.title
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@Lazy
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def token(self):
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return ':'.join((self.loopsRoot.getLoopsUri(self.context),
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self.loopsRoot.getLoopsUri(self.predicate)))
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@Lazy
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def conceptType(self):
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return self.context.conceptType
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@Lazy
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def typeTitle(self):
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return self.conceptType.title
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@Lazy
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def typeUrl(self):
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return zapi.absoluteURL(self.conceptType, self.request)
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@Lazy
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def predicateTitle(self):
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return self.predicate.title
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@Lazy
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def predicateUrl(self):
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return zapi.absoluteURL(self.predicate, self.request)
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class ConceptResourceRelationView(ConceptRelationView):
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@Lazy
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def conceptType(self):
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return None
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@Lazy
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def typeTitle(self):
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voc = util.KeywordVocabulary(getTargetTypes())
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token = '.'.join((self.context.__module__,
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self.context.__class__.__name__))
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term = voc.getTermByToken(token)
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return term.title
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@Lazy
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def typeUrl(self):
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return ''
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