diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/date_and_time/zones.rb')
-rw-r--r-- | activesupport/lib/active_support/core_ext/date_and_time/zones.rb | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/date_and_time/zones.rb b/activesupport/lib/active_support/core_ext/date_and_time/zones.rb new file mode 100644 index 0000000000..96c6df9407 --- /dev/null +++ b/activesupport/lib/active_support/core_ext/date_and_time/zones.rb @@ -0,0 +1,41 @@ +module DateAndTime + module Zones + # Returns the simultaneous time in <tt>Time.zone</tt> if a zone is given or + # if Time.zone_default is set. Otherwise, it returns the current time. + # + # Time.zone = 'Hawaii' # => 'Hawaii' + # DateTime.utc(2000).in_time_zone # => Fri, 31 Dec 1999 14:00:00 HST -10:00 + # Date.new(2000).in_time_zone # => Sat, 01 Jan 2000 00:00:00 HST -10:00 + # + # This method is similar to Time#localtime, except that it uses <tt>Time.zone</tt> as the local zone + # instead of the operating system's time zone. + # + # You can also pass in a TimeZone instance or string that identifies a TimeZone as an argument, + # and the conversion will be based on that zone instead of <tt>Time.zone</tt>. + # + # Time.utc(2000).in_time_zone('Alaska') # => Fri, 31 Dec 1999 15:00:00 AKST -09:00 + # DateTime.utc(2000).in_time_zone('Alaska') # => Fri, 31 Dec 1999 15:00:00 AKST -09:00 + # Date.new(2000).in_time_zone('Alaska') # => Sat, 01 Jan 2000 00:00:00 AKST -09:00 + def in_time_zone(zone = ::Time.zone) + time_zone = ::Time.find_zone! zone + time = acts_like?(:time) ? self : nil + + if time_zone + time_with_zone(time, time_zone) + else + time || self.to_time + end + end + + private + + def time_with_zone(time, zone) + if time + ActiveSupport::TimeWithZone.new(time.utc? ? time : time.getutc, zone) + else + ActiveSupport::TimeWithZone.new(nil, zone, to_time(:utc)) + end + end + end +end + |