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##############################################################################
#
# Copyright (c) 2002 Nexedi SARL. All Rights Reserved.
# Copyright (c) 2001 Zope Corporation and Contributors. All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE
#
##############################################################################
import string
import Acquisition
import sys
from ZODB.POSException import ConflictError
from AccessControl import ClassSecurityInfo
from AccessControl.SecurityInfo import allow_class
from zLOG import LOG
class ZSQLBrain(Acquisition.Implicit):
security = ClassSecurityInfo()
security.declareObjectPublic()
def _aq_dynamic(self, name):
"""Acquire an attribute from a real object.
"""
if name.startswith('__') :
return None
o = self.getObject()
return getattr(o, name, None)
def getURL(self):
return self.path
def getUrl(self):
return self.path
def getPath(self):
return self.path
def getUid(self):
return self.uid
getRID = getUid
def getObject(self, REQUEST=None):
"""Try to return the object for this record"""
if 'path' not in dir(self) and 'PATH' not in dir(self):
raise ValueError, "Unable to getObject from ZSQLBrain if ZSQL Method "\
"does not retrieves the `path` column from catalog table."
try:
obj = self.aq_parent.unrestrictedTraverse(self.getPath())
if obj is None:
if REQUEST is None:
REQUEST = self.REQUEST
obj = self.aq_parent.portal_catalog.resolve_url(
self.getPath(), REQUEST)
return obj
except ConflictError:
raise
except:
LOG("ZCatalog WARNING", 0,
"Could not access object path %s" % self.getPath(),
error=sys.exc_info() )
return None
def absolute_url(self, relative=0):
"""
Default method used to return the path stored in the Catalog.
However, if virtual hosting is implemented, we must return
a value which is compatible with the standard absolute_url
behaviour
And if absolute_url is invoked within a Web Site,
additional Web Site behaviour is required
Implementation of absolute_url therefore consists in using
physicalPathToURL defined in the REQUEST so that absolute_url
is consistent with HTTPRequest implementation.
"""
return self.REQUEST.physicalPathToURL(self.path, relative=relative)
def resolve_url(self, path, REQUEST):
"""
Taken from ZCatalog
Attempt to resolve a url into an object in the Zope
namespace. The url may be absolute or a catalog path
style url. If no object is found, None is returned.
No exceptions are raised.
"""
script=REQUEST.script
if string.find(path, script) != 0:
path='%s/%s' % (script, path)
try:
return REQUEST.resolve_url(path)
except ConflictError:
raise
except:
pass
allow_class(ZSQLBrain)