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work in progress: filters

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git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@3457 fd906abe-77d9-0310-91a1-e0d9ade77398
This commit is contained in:
helmutm 2009-07-16 06:04:35 +00:00
parent 75efbfb38a
commit a7351c0cff
3 changed files with 19 additions and 8 deletions
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10
expert/README.txt
View file

@ -187,10 +187,12 @@ concepts) that are direct or indirect children of jim.
>>> sorted(o.title for o in getObjects((qu & fltr.query()).apply())) >>> sorted(o.title for o in getObjects((qu & fltr.query()).apply()))
[u'Doc 001', u'Doc 003'] [u'Doc 001', u'Doc 003']
>>> #fltr.check(concepts['d001.txt']) >>> #fltr.check(resources['d001.txt'])
>>> #fltr.check(concepts['d002.txt']) >>> #fltr.check(resources['d002.txt'])
>>> #objs = fltr.apply(objs) >>> r1 = qu.apply()
>>> #sorted(o.title for o in objs.values()) >>> r2 = fltr.apply(dict(zip(r1, getObjects(r1))))
>>> sorted(o.title for o in r2.values())
[u'Doc 001', u'Doc 003']
Organizing Queries and Filters with Query Instances Organizing Queries and Filters with Query Instances

13
expert/filter.py
View file

@ -28,22 +28,31 @@ from zope.interface import implements
from cybertools.catalog.query import And from cybertools.catalog.query import And
from loops.expert.interfaces import IFilter from loops.expert.interfaces import IFilter
from loops.expert.query import Children as ChildrenQuery from loops.expert.query import Children as ChildrenQuery
from loops import util
class Filter(object): class Filter(object):
implements(IFilter) implements(IFilter)
query = None
def __init__(self, **kw): def __init__(self, **kw):
self.kwargs = kw self.kwargs = kw
def apply(self, objects, queryInstance=None): def apply(self, objects, queryInstance=None):
qu = self.query()
#if qu is not None:
# return set(objects).intersection(qu.apply())
result = IOBTree() result = IOBTree()
for uid, obj in objects: for uid, obj in objects.items():
if self.check(obj, queryInstance): if self.check(uid, obj, queryInstance):
result[uid] = obj result[uid] = obj
return result return result
def check(self, uid, obj, queryInstance=None):
return uid in self.query().apply() #.keys()
class Children(Filter): class Children(Filter):

4
expert/interfaces.py
View file

@ -26,7 +26,7 @@ from zope.interface import Interface, Attribute
class IQuery(Interface): class IQuery(Interface):
""" A query or """ A query.
""" """
def apply(): def apply():
@ -68,7 +68,7 @@ class IFilter(Interface):
intermediate results. intermediate results.
""" """
def check(obj, queryInstance=None): def check(uid, obj, queryInstance=None):
""" Return True if the object given should be included in the """ Return True if the object given should be included in the
filter's result set, False otherwise. filter's result set, False otherwise.