Hi,
I try to setup a little application but have a probably little problem
with a ForbiddenAttribute exception on "location.locate" method.
Here is my setup :
class IPhoto(IContainer,IContained):
"""Photo handling interface"""
...
image = Bytes(...)
...
class Photo(Folder):
"""Photo handling class"""
...
image = None
def __init__(self, image=None):
super(Photo,self).__init__()
self.__parent__ = self.__name__ = None
if image:
self.image = image
...
class IEvent(IContained):
"""Event handling interface"""
...
class Event(Persistent):
"""Event handling class"""
...
def __init__(self):
super(Event,self).__init__()
self.__parent__ = self.__name__ = None
In my event creation form (derived from formlib.AddForm), I put
something like this, without a problem :
def create(self, data):
event = Event()
if data.has_key('image'):
event.image = Photo(image=data['image'])
location.locate(event.image, event, 'image')
form.applyChanges(event, self.form_fields, data)
return event
"event.image" access can then be granted easily in an URL through a
"z3c.traverser" plug-in and everything works fine... until now !
Because when I'm trying to make the same thing in an edit form to update
an existing event, an exception is raised :
def edit(self, action, data):
changed = False
event = self.context
if data.has_key('image'):
event.image = Photo(image=data['image'])
location.locate(event.image, event, 'image')
changed = True
return super(EventEditForm,self).edit(action, data) or
changed
Here is the traceback :
Traceback (most recent call last):
File "/usr/local/zope/3.3.0/lib/python/zope/publisher/publish.py", line 133,
in publish
result = publication.callObject(request, obj)
File
"/usr/local/zope/3.3.0/lib/python/zope/app/publication/zopepublication.py",
line 161, in callObject
return mapply(ob, request.getPositionalArguments(), request)
File "/usr/local/zope/3.3.0/lib/python/zope/publisher/publish.py", line 108,
in mapply
return debug_call(obj, args)
- __traceback_info__: <security proxied
zope.app.publisher.browser.viewmeta.NewsEventEditForm instance at 0xa677e20c>
File "/usr/local/zope/3.3.0/lib/python/zope/publisher/publish.py", line 114,
in debug_call
return obj(*args)
File "/usr/local/zope/3.3/lib/python/zope/formlib/form.py", line 751, in
__call__
self.update()
File "/usr/local/zope/3.3/lib/python/zope/formlib/form.py", line 732, in
update
result = action.success(data)
File "/usr/local/zope/3.3/lib/python/zope/formlib/form.py", line 582, in
success
return self.success_handler(self.form, self, data)
File "/var/local/zope/3.3/lib/python/ulthar/forms/forms.py", line 104, in
handle_edit_action
self.edit_action(action,data)
File "/var/local/zope/3.3/lib/python/ulthar/forms/forms.py", line 107, in
edit_action
if not self.edit(action, data):
File "/var/local/zope/3.3/lib/python/usf/news/browser/event.py", line 85, in
edit
location.locate(event.image, event, 'image')
File "/usr/local/zope/3.3.0/lib/python/zope/location/location.py", line 71,
in locate
object.__parent__ = parent
ForbiddenAttribute: ('__parent__', <gallery.photo.Photo object at 0xa678f62c>)
I've tried to setup different permissions and access rights, but without
success.
So any help would be great !
Thanks,
Thierry
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