def locate(self, item):
key = self.key_reverse(item)
if self.wrapper is not None:
proxy = self.wrapper(item, name=key, container=self)
if IAcquirer.providedBy(proxy):
return proxy.__of__(self)
return proxy
return item
def connectionOfPersistent(obj):
""" zope2 cxn fetcher for wrapped items """
if not (IAcquirer.providedBy(obj) or hasattr(obj, '__parent__')):
return getattr(obj, '_p_jar', None)
for parent in aq_iter(obj):
conn = getattr(parent, '_p_jar', None)
if conn is not None:
return conn
def rewrap_in_request_container(obj, context=None):
'''Fix an object's acquisition wrapper to be able to acquire the REQUEST.'''
request = getattr(context, 'REQUEST', None) or getRequest()
if IAcquirer.providedBy(obj) and request is not None:
chain = []
parent = obj
while 1:
chain.append(parent)
parent = aq_parent(aq_inner(parent))
if parent in chain or parent is None or isinstance(
parent, RequestContainer):
break
obj = RequestContainer(REQUEST=request)
for ob in reversed(chain):
obj = aq_base(ob).__of__(obj)
return obj
def aq_iter(obj, error=None):
if not (IAcquirer.providedBy(obj) or hasattr(obj, '__parent__')):
raise TypeError("%s not acquisition wrapped" % obj)
# adapted from alecm's 'listen'
seen = set()
# get the inner-most wrapper (maybe save some cycles, and prevent
# bogus loop detection)
cur = aq_inner(obj)
while cur is not None:
yield cur
seen.add(id(aq_base(cur)))
cur = getattr(cur, 'aq_parent', getattr(cur, '__parent__', None))
if id(aq_base(cur)) in seen:
if error is not None:
raise error('__parent__ loop found')
break
def aq_iter(obj, error=None):
if not (IAcquirer.providedBy(obj) or hasattr(obj, '__parent__')):
raise TypeError("%s not acquisition wrapped" % obj)
# adapted from alecm's 'listen'
seen = set()
# get the inner-most wrapper (maybe save some cycles, and prevent
# bogus loop detection)
cur = aq_inner(obj)
while cur is not None:
yield cur
seen.add(id(aq_base(cur)))
cur = getattr(cur, 'aq_parent', getattr(cur, '__parent__', None))
if cur:
cur = aq_inner(cur) # unwrap from Acquisition context
if id(aq_base(cur)) in seen:
if error is not None:
raise error('__parent__ loop found')
break
def aq_iter(obj, error=None):
if not (IAcquirer.providedBy(obj) or hasattr(obj, '__parent__')):
raise TypeError("%s not acquisition wrapped" %obj)
# adapted from alecm's 'listen'
seen = set()
# get the inner-most wrapper (maybe save some cycles, and prevent
# bogus loop detection)
cur = aq_inner(obj)
while cur is not None:
yield cur
seen.add(id(aq_base(cur)))
cur = getattr(cur, 'aq_parent', getattr(cur, '__parent__', None))
if id(aq_base(cur)) in seen:
# avoid loops resulting from acquisition-less views
# whose __parent__ points to
# the context whose aq_parent points to the view
if error is not None:
raise error, '__parent__ loop found'
break
def __call__(self, form, request):
template = self.template
if IAcquirer.providedBy(template):
return ImplicitAcquisitionWrapper(template, form)
else:
return template
def __call__(self, form, request):
template = self.template
if IAcquirer.providedBy(template):
return ImplicitAcquisitionWrapper(template, form)
else:
return template
