# # Copyright (c) 2004 Helmut Merz helmutm@cy55.de # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # """ Definition of the Task view class. $Id$ """ from zope.app import zapi from zope.app.catalog.interfaces import ICatalog from zope.app.dublincore.interfaces import ICMFDublinCore from zope.app.event.objectevent import ObjectCreatedEvent from zope.app.form.browser.interfaces import ITerms from zope.cachedescriptors.property import Lazy from zope.dottedname.resolve import resolve from zope.event import notify from zope.formlib.form import EditForm, FormFields from zope.formlib.namedtemplate import NamedTemplate from zope.interface import implements from zope.publisher.interfaces import BadRequest from zope.publisher.interfaces.browser import IBrowserRequest from zope import schema from zope.schema.interfaces import IIterableSource from zope.security.proxy import removeSecurityProxy from cybertools.typology.interfaces import ITypeManager from loops.interfaces import IConcept from loops.concept import Concept, ConceptTypeSourceList, PredicateSourceList from loops.target import getTargetTypes from loops.browser.common import BaseView, LoopsTerms from loops import util class ConceptEditForm(EditForm): form_fields = FormFields(IConcept) template = NamedTemplate('pageform') class ConceptView(BaseView): def children(self): for r in self.context.getChildRelations(): yield ConceptRelationView(r, self.request, contextIsSecond=True) def parents(self): for r in self.context.getParentRelations(): yield ConceptRelationView(r, self.request) def resources(self): for r in self.context.getResourceRelations(): yield ConceptRelationView(r, self.request, contextIsSecond=True) class ConceptConfigureView(ConceptView): def update(self): request = self.request action = request.get('action') if action is None: return True if action == 'create': self.createAndAssign() return True tokens = request.get('tokens', []) for token in tokens: parts = token.split(':') token = parts[0] if len(parts) > 1: relToken = parts[1] concept = self.loopsRoot.loopsTraverse(token) if action == 'assign': assignAs = request.get('assignAs', 'child') predicate = request.get('predicate') or None if predicate: predicate = removeSecurityProxy( self.loopsRoot.loopsTraverse(predicate)) if assignAs == 'child': self.context.assignChild(removeSecurityProxy(concept), predicate) elif assignAs == 'parent': self.context.assignParent(removeSecurityProxy(concept), predicate) elif assignAs == 'resource': self.context.assignResource(removeSecurityProxy(concept), predicate) else: raise(BadRequest, 'Illegal assignAs parameter: %s.' % assignAs) elif action == 'remove': predicate = self.loopsRoot.loopsTraverse(relToken) qualifier = request.get('qualifier') if qualifier == 'parents': self.context.deassignParent(concept, [predicate]) elif qualifier == 'children': self.context.deassignChild(concept, [predicate]) elif qualifier == 'resources': self.context.deassignResource(concept, [predicate]) elif qualifier == 'concepts': self.context.deassignConcept(concept, [predicate]) else: raise(BadRequest, 'Illegal qualifier: %s.' % qualifier) else: raise(BadRequest, 'Illegal action: %s.' % action) return True def createAndAssign(self): request = self.request name = request.get('create.name') if not name: raise(BadRequest, 'Empty name.') title = request.get('create.title', u'') token = self.request.get('create.type') type = ITypeManager(self.context).getType(token) factory = type.factory container = type.defaultContainer concept = factory(title) container[name] = concept if IConcept.providedBy(concept): concept.conceptType = type.typeProvider notify(ObjectCreatedEvent(removeSecurityProxy(concept))) assignAs = self.request.get('assignAs', 'child') predicate = request.get('create.predicate') or None if predicate: predicate = removeSecurityProxy( self.loopsRoot.loopsTraverse(predicate)) if assignAs == 'child': self.context.assignChild(removeSecurityProxy(concept), predicate) elif assignAs == 'parent': self.context.assignParent(removeSecurityProxy(concept), predicate) elif assignAs == 'resource': self.context.assignResource(removeSecurityProxy(concept), predicate) elif assignAs == 'concept': self.context.assignConcept(removeSecurityProxy(concept), predicate) else: raise(BadRequest, 'Illegal assignAs parameter: %s.' % assignAs) def search(self): request = self.request if request.get('action') != 'search': return [] searchTerm = request.get('searchTerm', None) searchType = request.get('searchType', None) result = [] if searchTerm or searchType != 'none': criteria = {} if searchTerm: criteria['loops_title'] = searchTerm if searchType: if searchType.endswith('*'): start = searchType[:-1] end = start + '\x7f' else: start = end = searchType criteria['loops_type'] = (start, end) cat = zapi.getUtility(ICatalog) result = cat.searchResults(**criteria) else: result = self.loopsRoot.getConceptManager().values() if searchType == 'none': result = [r for r in result if r.conceptType is None] return self.viewIterator(result) def viewIterator(self, objs): request = self.request for o in objs: yield BaseView(o, request) def conceptTypes(self): return util.KeywordVocabulary([(t.token, t.title) for t in ITypeManager(self.context).listTypes(('concept',))]) def conceptTypesForSearch(self): general = [('loops:concept:*', 'Any'),] return util.KeywordVocabulary(general + [(t.tokenForSearch, t.title) for t in ITypeManager(self.context).listTypes(('concept',))]) def resourceTypes(self): return util.KeywordVocabulary([(t.token, t.title) for t in ITypeManager(self.context).listTypes(('resource',))]) def resourceTypesForSearch(self): general = [('loops:resource:*', 'Any'),] return util.KeywordVocabulary(general + [(t.tokenForSearch, t.title) for t in ITypeManager(self.context).listTypes(('resource',))]) def predicates(self): preds = PredicateSourceList(self.context) terms = zapi.getMultiAdapter((preds, self.request), ITerms) for pred in preds: yield terms.getTerm(pred) class ConceptRelationView(BaseView): def __init__(self, relation, request, contextIsSecond=False): if contextIsSecond: self.context = relation.second self.other = relation.first else: self.context = relation.first self.other = relation.second self.predicate = relation.predicate self.request = request @Lazy def token(self): return ':'.join((self.loopsRoot.getLoopsUri(self.context), self.loopsRoot.getLoopsUri(self.predicate))) @Lazy def predicateTitle(self): return self.predicate.title @Lazy def predicateUrl(self): return zapi.absoluteURL(self.predicate, self.request)