a7351c0cff
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@3457 fd906abe-77d9-0310-91a1-e0d9ade77398
67 lines
1.8 KiB
Python
67 lines
1.8 KiB
Python
#
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# Copyright (c) 2008 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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Filter query results.
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$Id$
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"""
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from BTrees.IOBTree import IOBTree
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from zope.interface import implements
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from cybertools.catalog.query import And
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from loops.expert.interfaces import IFilter
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from loops.expert.query import Children as ChildrenQuery
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from loops import util
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class Filter(object):
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implements(IFilter)
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query = None
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def __init__(self, **kw):
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self.kwargs = kw
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def apply(self, objects, queryInstance=None):
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qu = self.query()
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#if qu is not None:
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# return set(objects).intersection(qu.apply())
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result = IOBTree()
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for uid, obj in objects.items():
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if self.check(uid, obj, queryInstance):
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result[uid] = obj
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return result
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def check(self, uid, obj, queryInstance=None):
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return uid in self.query().apply() #.keys()
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class Children(Filter):
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implements(IFilter)
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def __init__(self, parent, **kw):
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self.parent = parent
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super(Children, self).__init__(**kw)
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def query(self):
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return ChildrenQuery(self.parent, **self.kwargs)
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