Hello everyone,
A user enters the time of an event and the time zone of the event.
Before
validation in the model, I set the zone of the time entered to the one
chosen (only changing the zone, not the time)
self.starts_at.zone = time_zone
extending ActiveSupport thus …
module ActiveSupport
class TimeWithZone
def zone=(new_zone = ::Time.zone)
# Reinitialize with the new zone and the local time
initialize(nil, ::Time.send(:get_zone, new_zone), time)
end
end
end
and that gets saved nicely in the DB as UTC.
Upon editing that record, I keep getting different time zones being
displayed and they change upon page refresh or a new request.
Here is an example of the output after a refresh …
Here are the relevant fields after being retrieved in the edit action
@event.to_yaml
attributes:
starts_at: 2011-07-08 17:00:00
invitation_expiry: 2011-07-08 16:50:00
time_zone: Pacific Time (US & Canada)
attributes_cache:
starts_at: 2011-07-08 17:00:00 Z
invitation_expiry: 2011-07-08 16:50:00 Z
And here’s some simple debug output from the relevant requests
logger.debug @event.starts_at.zone
→ PDT
logger.debug @event.starts_at
# → 2011-07-08 10:00:00 -0700
logger.debug @event.starts_at.in_time_zone(@event.time_zone) # →
2011-07-08
10:00:00 -0700
logger.debug @event.starts_at.in_time_zone(‘UTC’) #
→ 2011-07-08 17:00:00 UTC
logger.debug @event.starts_at.zone
→ UTC
logger.debug @event.starts_at
# → 2011-07-08 17:00:00 UTC
logger.debug @event.starts_at.in_time_zone(@event.time_zone) # →
2011-07-08
10:00:00 -0700
logger.debug @event.starts_at.in_time_zone(‘UTC’) #
→ 2011-07-08 17:00:00 UTC
Now, I thought Rails would do all the magic and convert my UTC time
(from
the DB) in to the time zone that I set. As you can see, it does
sometimes
but as it’s random, it’s obviously not doing what I thought it would.
This takes me back to my mod_perl days of sometimes it works, sometimes
it
doesn’t.
Does anyone have any insight in to this, please.
Any pointers would be great. Thanks
-ants