[Zope-CMF] [dev] Portal status messages and i18n: a proposal

[yuppie]

Hi!


Currently the portal status message is always translated in the i18n 
domain of main_template if sent through a redirect. This makes it 
impossible to use different domains (and mappings or defaults).

Add-on products might want to use their own i18n domain. CMFCalendar 
demonstrates that use case. "Event changed." is currently not translated 
because of that issue.


There are more sophisticated approaches than using the query string for 
status messages. Depending on your needs sessions or the statusmessages 
product (http://dev.plone.org/collective/browser/statusmessages) might 
be more appropriate.

But I'd like to keep the solution used in CMF simple and don't want to 
create any dependencies on third party products. So I propose to resolve 
the issue like this:

1.) Translate portal status messages and encode them with 
default_charset before they are added to the query string. To make this 
easier I'd like to add a translate function to CMFDefault utils.

2.) Decode the messages again before they are passed to the 
main_template. No longer use i18n:translate="" in the template.


Comments are welcome! If there are no objections I'll implement this on 
the trunk before the 2.0 beta release.


Cheers,

	Yuppie