[Zope-dev] how to install a method hook

[Jepthte CLAIN]

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Hello,

here is the 'problem': I want to write support for french dates and
various other stuff in my zope installation.

Until now, i've always patched zope, but it proves to be a pain to patch
my installation each time a release is out.

for now, I want to write a product that 'replace' some common objects by
a my custom objects.

For example, I derived DateTime to provide french date display and
input. I would like to 'replace' (in term of acquisition) the toplevel
Application.ZopeTime with my own ZopeTime (instance of DateTimeFr)

For now, I have written a custon Folder which has a ZopeTime method,
returning an instance of DateTimeFr
All object under such a folder get the new ZopeTime thanks to
acquisition.

But I would like to replace ZopeTime for the toplevel folder too.


<---------- the actual question ------------>
could I do this with the legacy methods of context.RegisterClass ?
If I install a product that register ZopeTime legacy methods, will it
'replace' the toplevel ZopeTime? I read the source, but it unclear to me
if it will work that way

If it work that way, I could do a Locale_fr product which replace the
locale sensitive objects with custom ones.

Are there any other ways to do this?


please cc to my address as I'm not on the list
-- 
Regards,

Jephte CLAIN
minf7@educ.univ-reunion.fr
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