[Zope] Re: Internationalization

[Tino Wildenhain]

Hi benno,

--On Sonntag, 5. Januar 2003 07:27 -0400 beno <zope@thewebsons.com> wrote:

> At 12:12 PM 1/5/2003 +0100, you wrote:
>> beno wrote:
>>> Hi;
>>> I would like to get the language code from the client's header. I
>>> presume  this is done with a REQUEST to get_header, but I've been
>>> searching  without luck for the syntax. Got it?
>>
>> You can get it with something like:
>>
>> REQUEST.get('HTTP_ACCEPT_LANGUAGE')
>
> Okay, so I've got this:
>
> <dtml-call expr="REQUEST.get('HTTP_ACCEPT_LANGUAGE')">
>
> How do I return the value of the expression to my script? If my language
> is *en*, how do I return this to use it in redirecting the client? TIA,
> beno

Language negotiation is slightly more complicated. Look out for my
outdated (because its for DTML) but as starting point for the algorithm
still valuabe VaryTag. Please dont use it directly but look at the source
for hints.
( http://www.zope.org/Members/tino/Vary_Tag/readme )

In short, you should have an object-manager alike object (like a folder),
add ZPT files for content, name them like de.pt, en.pt, ...
index_html or if you make a product the default view should
take the HTTP_ACCEPT_LANGUAGE header, do the math on the weights,
look into its objectIds(), order it with the accept-list from
the client and choose the most appropriate which you have and the
client wants or at least a default if there is no match.
It should then set the return code and HTTP-Headers to tell downstream
proxies and the client about the language-negotiation
and finally return the Template in question rendered.

Dont forget to set somewhere (for example in REQUEST) the
information which language was choosen, so generated output
(for example from database) can be localized as well.

HTH
Tino Wildenhain