a44c5a1d2e
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@1380 fd906abe-77d9-0310-91a1-e0d9ade77398
287 lines
11 KiB
Python
287 lines
11 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 concept view classes.
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$Id$
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"""
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from zope import interface, component, schema
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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.event.objectevent import ObjectCreatedEvent, ObjectModifiedEvent
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from zope.app.container.contained import ObjectRemovedEvent
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from zope.app.form.browser.interfaces import ITerms
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from zope.app.form.interfaces import IDisplayWidget
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from zope.app.pagetemplate import ViewPageTemplateFile
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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.formlib.form import EditForm, FormFields
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from zope.formlib.namedtemplate import NamedTemplate
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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.schema.interfaces import IIterableSource
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from zope.security.proxy import removeSecurityProxy
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from cybertools.typology.interfaces import IType, ITypeManager
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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.browser.common import EditForm, BaseView, LoopsTerms
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from loops import util
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class ConceptEditForm(EditForm):
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@Lazy
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def typeInterface(self):
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return IType(self.context).typeInterface
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@property
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def form_fields(self):
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fields = FormFields(IConcept)
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typeInterface = self.typeInterface
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if typeInterface is not None:
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fields = FormFields(fields, typeInterface)
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return fields
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class ConceptView(BaseView):
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template = NamedTemplate('loops.concept_macros')
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@Lazy
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def macro(self):
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return self.template.macros['conceptdata']
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def fieldData(self):
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ti = IType(self.context).typeInterface
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if not ti: return
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adapter = ti(self.context)
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for n, f in schema.getFieldsInOrder(ti):
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value = getattr(adapter, n, '')
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if not value:
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continue
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bound = f.bind(adapter)
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widget = component.getMultiAdapter(
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(bound, self.request), IDisplayWidget)
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widget.setRenderedValue(value)
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yield dict(title=f.title, value=value, id=n, widget=widget)
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def children(self):
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cm = self.loopsRoot.getConceptManager()
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hasType = cm.getTypePredicate()
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standard = cm.getDefaultPredicate()
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rels = sorted(self.context.getChildRelations(),
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key=(lambda x: x.second.title))
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for r in rels:
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if r.predicate == hasType:
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# only show top-level entries for type instances:
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skip = False
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for parent in r.second.getParents((standard,)):
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if parent.conceptType == self.context:
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skip = True
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break
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if skip: continue
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yield ConceptRelationView(r, self.request, contextIsSecond=True)
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def parents(self):
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rels = sorted(self.context.getParentRelations(),
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key=(lambda x: x.first.title))
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for r in rels:
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yield ConceptRelationView(r, self.request)
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def resources(self):
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rels = sorted(self.context.getResourceRelations(),
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key=(lambda x: x.second.title))
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for r in rels:
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yield ConceptRelationView(r, self.request, contextIsSecond=True)
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@Lazy
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def view(self):
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viewName = self.request.get('loops.viewName') or getattr(self, '_viewName', None)
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if not viewName:
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ti = IType(self.context).typeInterface
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# TODO: check the interface (maybe for a base interface IViewProvider)
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# instead of the viewName attribute:
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if ti and 'viewName' in ti:
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typeAdapter = ti(self.context)
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viewName = typeAdapter.viewName
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if viewName:
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# ??? Would it make sense to use a somehow restricted interface
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# that should be provided by the view like IQuery?
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#viewInterface = getattr(typeAdapter, 'viewInterface', None) or IQuery
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adapter = component.queryMultiAdapter((self.context, self.request),
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interface.Interface, name=viewName)
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if adapter is not None:
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return adapter
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#elif type provides view: use this
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return self
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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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token = self.request.get('create.type')
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type = ITypeManager(self.context).getType(token)
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factory = type.factory
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container = type.defaultContainer
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concept = removeSecurityProxy(factory(title))
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container[name] = concept
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if IConcept.providedBy(concept):
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concept.conceptType = type.typeProvider
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notify(ObjectCreatedEvent(concept))
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notify(ObjectModifiedEvent(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(concept, predicate)
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elif assignAs == 'parent':
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self.context.assignParent(concept, predicate)
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elif assignAs == 'resource':
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self.context.assignResource(concept, predicate)
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elif assignAs == 'concept':
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self.context.assignConcept(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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# TODO: can this be done in a faster way?
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result = [r for r in result if r.getLoopsRoot() == self.loopsRoot]
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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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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(BaseView):
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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 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 uidToken(self):
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return ':'.join((util.getUidForObject(self.context),
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util.getUidForObject(self.predicate)))
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@Lazy
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def isProtected(self):
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return zapi.getName(self.predicate) == 'hasType'
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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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