[Zope-dev] Weird IndexableObjectWrapper + TopicIndex +
aq_acquired interactions.
Dieter Maurer
dieter at handshake.de
Wed Sep 21 13:28:04 EDT 2005
Lennart Regebro wrote at 2005-9-21 08:18 +0200:
> ...
>> What is the "aq_parent" that was used when wrapping the object?
>
>Eh, which one? The aq_chain of both the original aq wrapper and the
>indexableobjectrapper is correct. The aq_chain of the "outside"
>aq_wrapper is just [<self>]. Which seems expected, since aq_acquire
>think it got an object without acquisition, right?
Depending of what "<self>" is.
When an acquisition wrapper is formed, there always must some context
(which is put into "aq_parent").
Almost all contexts contain a full acquisition chain.
Maybe, we should wrap the "IndexableObjectWrapper" into the
context of the catalog?
> ...
>> Where does the context come from used when "aq_acquire" acquisition
>> wrapped the "IndexableObjectWrapper"?
>
>I don't think there is any context involved.
When an acquisition wrapper is formed, there is a context -- the
one put as "parent" argument of the acquisition wrapper constructor.
>> The best way around such problems would probably by to make
>> "IndexableObjectWrapper" a public class.
>
>"Public"?
Yes, public (to let all security checks succeed).
Of course, this means that someone with the permission to
customize a catalog can obtain information he may not
gain in a different way.
--
Dieter
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