uhm. The real problem of a client-side implementation is that if the client pc is not set correctly, it obviously fails. Assuming that we're ok with that (i.e. most of the times the client clock is set correctly) this implementation is fine "for the current day" but doesn't account for DST at all, i.e. there are several corner-cases (read: too many to count them as "acceptable exceptions") where given an offset you can't tell what "zone" the client is in, so you can't recalculate either the proper DST --> you end up with wrong data.
This is a full implementation that is fine in the 99% of the cases. http://pellepim.bitbucket.org/jstz/ PS: I didn't read the implementation yet but we should "enforce" a good behaviour of storing all informations as UTC and representing it as the local timezone of the user, either server-side or client-side. PS2: Instead of reinventing the wheel, we could use moment.js and https://github.com/timrwood/moment-timezone On Monday, March 18, 2013 3:31:24 AM UTC+1, Massimo Di Pierro wrote: > > I was looking at code to detect the user timezone and store dates > consistently in UTC format. > I made some changes in trunk to handle this. I could use some help testing. > > 1) In the header of your layout.html add: > > {{if not session.timezone:}} > <script> > > jQuery(function(){jQuery.post('{{=URL('default','set_timezone')}}',{timezone:(new > > Date()).getTimezoneOffset()});}); > </script> > {{pass}} > > 2) in the default controller: > > def set_timezone(): > session.timezone = int(request.vars.timezone)/60 > > 3) Use the new timezone attribute of validators in trunk: > > Field('birthday','datetime',requires = > IS_DATETIME(timezone=session.timezone) > > Does it work for you? Suggestions for improvement? > > Massimo > -- --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
