a659d8c7de
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@814 fd906abe-77d9-0310-91a1-e0d9ade77398
93 lines
2.9 KiB
Python
93 lines
2.9 KiB
Python
#
|
|
# Copyright (c) 2005 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 Concept class.
|
|
|
|
$Id$
|
|
"""
|
|
|
|
from zope.app import zapi
|
|
from zope.app.container.btree import BTreeContainer
|
|
from zope.app.container.contained import Contained
|
|
from zope.interface import implements
|
|
from persistent import Persistent
|
|
|
|
from cybertools.relation.interfaces import IRelationsRegistry
|
|
from cybertools.relation import DyadicRelation
|
|
|
|
from interfaces import IConcept
|
|
from interfaces import IConceptManager, IConceptManagerContained
|
|
from interfaces import ILoopsContained
|
|
from relations import ConceptRelation
|
|
|
|
|
|
class Concept(Contained, Persistent):
|
|
|
|
implements(IConcept, IConceptManagerContained)
|
|
|
|
_title = u''
|
|
def getTitle(self): return self._title
|
|
def setTitle(self, title): self._title = title
|
|
title = property(getTitle, setTitle)
|
|
|
|
def __init__(self, name=None, title=u''):
|
|
self.title = title
|
|
|
|
# concept relations:
|
|
|
|
def getSubConcepts(self, relationships=None):
|
|
rels = getRelations(first=self, relationships=relationships)
|
|
return [r.second for r in rels]
|
|
# TODO: sort...
|
|
|
|
def getParentConcepts(self, relationships=None):
|
|
rels = getRelations(second=self, relationships=relationships)
|
|
return [r.first for r in rels]
|
|
|
|
def assignConcept(self, concept, relationship=ConceptRelation):
|
|
registry = zapi.getUtility(IRelationsRegistry)
|
|
registry.register(relationship(self, concept))
|
|
# TODO (?): avoid duplicates
|
|
|
|
def deassignConcept(self, concept, relationships=None):
|
|
pass # TODO
|
|
|
|
|
|
class ConceptManager(BTreeContainer):
|
|
|
|
implements(IConceptManager, ILoopsContained)
|
|
|
|
|
|
# TODO: move this to the cybertools.relation package
|
|
|
|
def getRelations(first=None, second=None, third=None, relationships=None):
|
|
registry = zapi.getUtility(IRelationsRegistry)
|
|
query = {}
|
|
if first: query['first'] = first
|
|
if second: query['second'] = second
|
|
if third: query['third'] = third
|
|
if not relationships:
|
|
return registry.query(**query)
|
|
else:
|
|
result = []
|
|
for r in relationships:
|
|
query['relationship'] = r
|
|
result.extend(registry.query(**query))
|
|
return result
|
|
|