24bc699e53
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@2557 fd906abe-77d9-0310-91a1-e0d9ade77398
114 lines
3.2 KiB
Python
114 lines
3.2 KiB
Python
#
|
|
# Copyright (c) 2008 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
|
|
#
|
|
|
|
"""
|
|
Generic query functionality for retrieving stuff from a loops database.
|
|
|
|
$Id$
|
|
"""
|
|
|
|
from BTrees.IIBTree import IITreeSet
|
|
from BTrees.IFBTree import IFBTree, IFTreeSet
|
|
from BTrees.IOBTree import IOBTree
|
|
from zope import interface, component
|
|
from zope.app.intid.interfaces import IIntIds
|
|
from zope.component import adapts
|
|
from zope.interface import implements, implementer
|
|
from zope.cachedescriptors.property import Lazy
|
|
|
|
from cybertools.catalog.query import Term, Eq, Between
|
|
from cybertools.catalog.query import Text as BaseText
|
|
from loops.expert.interfaces import IQuery
|
|
from loops.security.common import canListObject
|
|
from loops import util
|
|
|
|
titleIndex = ('', 'loops_title')
|
|
textIndex = ('', 'loops_text')
|
|
typeIndex = ('', 'loops_type')
|
|
|
|
|
|
@implementer(IQuery)
|
|
def Title(value):
|
|
return BaseText(titleIndex, value)
|
|
|
|
@implementer(IQuery)
|
|
def Text(value):
|
|
return BaseText(textIndex, value)
|
|
|
|
@implementer(IQuery)
|
|
def Type(value):
|
|
if value.endswith('*'):
|
|
v1 = value[:-1]
|
|
v2 = value[:-1] + '\x7f'
|
|
return Between(typeIndex, v1, v2)
|
|
return Eq(typeIndex, value)
|
|
|
|
|
|
class ConceptMapTerm(Term):
|
|
|
|
implements(IQuery)
|
|
|
|
def __init__(self, concept, **kw):
|
|
self.context = concept
|
|
for k, v in kw.items():
|
|
setattr(self, k, v)
|
|
|
|
|
|
class Resources(ConceptMapTerm):
|
|
|
|
predicates = None
|
|
|
|
def apply(self):
|
|
result = IFTreeSet()
|
|
for r in self.context.getResources():
|
|
result.insert(int(util.getUidForObject(r)))
|
|
return result
|
|
|
|
|
|
class Children(ConceptMapTerm):
|
|
|
|
includeResources = False
|
|
recursive = False
|
|
predicates = None
|
|
|
|
def apply(self):
|
|
result = IFTreeSet()
|
|
self.getRecursive(self.context, result)
|
|
return result
|
|
|
|
def getRecursive(self, c, result):
|
|
if self.includeResources:
|
|
for r in c.getResources():
|
|
uid = int(util.getUidForObject(r))
|
|
if uid not in result:
|
|
result.insert(uid)
|
|
for c in c.getChildren():
|
|
uid = int(util.getUidForObject(c))
|
|
if uid not in result:
|
|
result.insert(uid)
|
|
if self.recursive:
|
|
self.getRecursive(c, result)
|
|
|
|
|
|
def getObjects(uids, root=None, checkPermission=canListObject):
|
|
intIds = component.getUtility(IIntIds)
|
|
for uid in uids:
|
|
obj = util.getObjectForUid(uid, intIds)
|
|
if ((root is None or obj.getLoopsRoot() == root) and
|
|
(checkPermission is None or checkPermission(obj))):
|
|
yield obj
|