[Zope3-dev] Formatting dates

[Gary Poster]

On Jul 19, 2005, at 6:33 PM, Garrett Smith wrote:



> So this will specifically impact:
>
> - The use of date/time formatters
> - Date/time widgets
>
> Anything else?
>
>

I don't think so.



> Since datetime values are immutable, I assume you're envisioning  
> that widgets create tz-aware values. With that in mind, I don't  
> understand  'collected timezone-less times from our forms'.
>
>

Consider the current datetime widgets: we have one that is text- 
based, and tiks has one (as does ZC--another thing we should all  
share so too many of us don't have to reinvent wheels) based on the  
mishoo calendar widget.  The mishoo widget is much more friendly than  
a text-only widget (IMO; take it for argument's sake, at least) but  
does not collect timezone information (or didn't last time I  
checked).  Therefore, it seems reasonable behavior to declare to a  
user that their registered timezone will be applied to times they  
enter for which they do not specify a timezone.

That application of the user's timezone might be done before the  
datetime is actually generated, or with a datetime.replace 
(tzinfo=ITZInfo(request)) call.  (The immutable nature of strings,  
datetimes, and other similar types doesn't prevent us from performing  
operations with them or from replacing one attribute value with  
another, of course).

Gary