On Fri, Apr 17, 2009 at 03:35:58PM -0400, Ethan Jucovy wrote:
> How about just monkeypatching the active negotiator?
>
> {{{
> negotiator = getUtility(zope.i18n.interfaces.INegotiator)
> orig = negotiator.getLanguage
> negotiator.getLanguage = lambda foo, bar: 'fr'
> text = my_page_template()
> negotiator.getLanguage = orig
> }}}
>
> Haven't tested it, but in my (limited) understanding of the I18N system
> something like that ought to work..Two words: "thread safety". Zope 3 utilities are global, not thread-local. Unless you have a persistent utility (theoretically; the default INegotiator isn't), which would be thread-local. (And in which case your example code would try to pickle a bound method---I wonder if that'd work? I think it might, but just consider the conflict errors you'd get if every request did this.) "Monkey-patching outside unit tests is evil and will explode when you don't expect" is a good rule of thumb. Marius Gedminas -- http://pov.lt/ -- Zope 3 consulting and development
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