[Zope-dev] Features for Zope 2.8

[Christian Theune]

Hi.

As Zope 2.7 looks like could-be-out-soon. I'd like to ask if there is
room for including the post-traverse patch in Zope 2.8. I'm currently
maintaining it as a patch on a branch for Zope 2.7, but would like to
see it back in the mainstream. 

Short description of it:

	-	Sometimes you want to run code before the published 		object as in
the before_traverse hooks. But there you 		miss to variables: The object
to be published and 		security context.

	-	During traversal you can register yourself to be called 		after those
two variables have been determined. This 		results in a chain of methods
to be callen.

	-	When the methods are callen, they get the necessary 		contexts and
can return None (everything as usual) or 		return something else, that
should be used for 		publication instead of the object that was found by
		traversal. (Note: I intended it that the 		REQUEST['PUBLISHED']
remains the one found by 		traversal.) This also discontinues the chain
of post 		traversal calls.

If this is feature could be a candidate for 2.8, i'll write a more
in-depth proposal on it, and can provide the necessary code.

Cheers,
Christian

-- 
Christian Theune, gocept gmbh & co. kg
http://www.gocept.com - ct at gocept.com
fon: 03496 3099112 fax: 03496 3099118 mobile: 0179 7808366
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