diff options
Diffstat (limited to 'activesupport/lib/active_support/time_with_zone.rb')
| -rw-r--r-- | activesupport/lib/active_support/time_with_zone.rb | 83 |
1 files changed, 68 insertions, 15 deletions
diff --git a/activesupport/lib/active_support/time_with_zone.rb b/activesupport/lib/active_support/time_with_zone.rb index b1cec43124..20650ce714 100644 --- a/activesupport/lib/active_support/time_with_zone.rb +++ b/activesupport/lib/active_support/time_with_zone.rb @@ -1,7 +1,9 @@ -require 'active_support/duration' -require 'active_support/values/time_zone' -require 'active_support/core_ext/object/acts_like' -require 'active_support/core_ext/date_and_time/compatibility' +# frozen_string_literal: true + +require "active_support/duration" +require "active_support/values/time_zone" +require "active_support/core_ext/object/acts_like" +require "active_support/core_ext/date_and_time/compatibility" module ActiveSupport # A Time-like class that can represent a time in any time zone. Necessary @@ -36,14 +38,13 @@ module ActiveSupport # t.is_a?(Time) # => true # t.is_a?(ActiveSupport::TimeWithZone) # => true class TimeWithZone - # Report class name as 'Time' to thwart type checking. def self.name - 'Time' + "Time" end PRECISIONS = Hash.new { |h, n| h[n] = "%FT%T.%#{n}N".freeze } - PRECISIONS[0] = '%FT%T'.freeze + PRECISIONS[0] = "%FT%T".freeze include Comparable, DateAndTime::Compatibility attr_reader :time_zone @@ -134,7 +135,7 @@ module ActiveSupport period.zone_identifier.to_s end - # Returns a string of the object's date, time, zone and offset from UTC. + # Returns a string of the object's date, time, zone, and offset from UTC. # # Time.zone.now.inspect # => "Thu, 04 Dec 2014 11:00:25 EST -05:00" def inspect @@ -149,6 +150,7 @@ module ActiveSupport "#{time.strftime(PRECISIONS[fraction_digits.to_i])}#{formatted_offset(true, 'Z'.freeze)}" end alias_method :iso8601, :xmlschema + alias_method :rfc3339, :xmlschema # Coerces time to a string for JSON encoding. The default format is ISO 8601. # You can get %Y/%m/%d %H:%M:%S +offset style by setting @@ -171,12 +173,12 @@ module ActiveSupport end def init_with(coder) #:nodoc: - initialize(coder['utc'], coder['zone'], coder['time']) + initialize(coder["utc"], coder["zone"], coder["time"]) end def encode_with(coder) #:nodoc: - coder.tag = '!ruby/object:ActiveSupport::TimeWithZone' - coder.map = { 'utc' => utc, 'zone' => time_zone, 'time' => time } + coder.tag = "!ruby/object:ActiveSupport::TimeWithZone" + coder.map = { "utc" => utc, "zone" => time_zone, "time" => time } end # Returns a string of the object's date and time in the format used by @@ -280,6 +282,7 @@ module ActiveSupport end end alias_method :since, :+ + alias_method :in, :+ # Returns a new TimeWithZone object that represents the difference between # the current object's time and the +other+ time. @@ -329,6 +332,42 @@ module ActiveSupport since(-other) end + # Returns a new +ActiveSupport::TimeWithZone+ where one or more of the elements have + # been changed according to the +options+ parameter. The time options (<tt>:hour</tt>, + # <tt>:min</tt>, <tt>:sec</tt>, <tt>:usec</tt>, <tt>:nsec</tt>) reset cascadingly, + # so if only the hour is passed, then minute, sec, usec and nsec is set to 0. If the + # hour and minute is passed, then sec, usec and nsec is set to 0. The +options+ + # parameter takes a hash with any of these keys: <tt>:year</tt>, <tt>:month</tt>, + # <tt>:day</tt>, <tt>:hour</tt>, <tt>:min</tt>, <tt>:sec</tt>, <tt>:usec</tt>, + # <tt>:nsec</tt>, <tt>:offset</tt>, <tt>:zone</tt>. Pass either <tt>:usec</tt> + # or <tt>:nsec</tt>, not both. Similarly, pass either <tt>:zone</tt> or + # <tt>:offset</tt>, not both. + # + # t = Time.zone.now # => Fri, 14 Apr 2017 11:45:15 EST -05:00 + # t.change(year: 2020) # => Tue, 14 Apr 2020 11:45:15 EST -05:00 + # t.change(hour: 12) # => Fri, 14 Apr 2017 12:00:00 EST -05:00 + # t.change(min: 30) # => Fri, 14 Apr 2017 11:30:00 EST -05:00 + # t.change(offset: "-10:00") # => Fri, 14 Apr 2017 11:45:15 HST -10:00 + # t.change(zone: "Hawaii") # => Fri, 14 Apr 2017 11:45:15 HST -10:00 + def change(options) + if options[:zone] && options[:offset] + raise ArgumentError, "Can't change both :offset and :zone at the same time: #{options.inspect}" + end + + new_time = time.change(options) + + if options[:zone] + new_zone = ::Time.find_zone(options[:zone]) + elsif options[:offset] + new_zone = ::Time.find_zone(new_time.utc_offset) + end + + new_zone ||= time_zone + periods = new_zone.periods_for_local(new_time) + + self.class.new(nil, new_zone, new_time, periods.include?(period) ? period : nil) + end + # Uses Date to provide precise Time calculations for years, months, and days # according to the proleptic Gregorian calendar. The result is returned as a # new TimeWithZone object. @@ -407,7 +446,18 @@ module ActiveSupport # Time.zone.now.to_datetime # => Tue, 18 Aug 2015 02:32:20 +0000 # Time.current.in_time_zone('Hawaii').to_datetime # => Mon, 17 Aug 2015 16:32:20 -1000 def to_datetime - utc.to_datetime.new_offset(Rational(utc_offset, 86_400)) + @to_datetime ||= utc.to_datetime.new_offset(Rational(utc_offset, 86_400)) + end + + # Returns an instance of +Time+, either with the same UTC offset + # as +self+ or in the local system timezone depending on the setting + # of +ActiveSupport.to_time_preserves_timezone+. + def to_time + if preserve_timezone + @to_time_with_instance_offset ||= getlocal(utc_offset) + else + @to_time_with_system_offset ||= getlocal + end end # So that +self+ <tt>acts_like?(:time)</tt>. @@ -427,7 +477,8 @@ module ActiveSupport end def freeze - period; utc; time # preload instance variables before freezing + # preload instance variables before freezing + period; utc; time; to_datetime; to_time super end @@ -459,7 +510,7 @@ module ActiveSupport def method_missing(sym, *args, &block) wrap_with_time_zone time.__send__(sym, *args, &block) rescue NoMethodError => e - raise e, e.message.sub(time.inspect, self.inspect), e.backtrace + raise e, e.message.sub(time.inspect, inspect), e.backtrace end private @@ -477,11 +528,13 @@ module ActiveSupport end def transfer_time_values_to_utc_constructor(time) + # avoid creating another Time object if possible + return time if time.instance_of?(::Time) && time.utc? ::Time.utc(time.year, time.month, time.day, time.hour, time.min, time.sec + time.subsec) end def duration_of_variable_length?(obj) - ActiveSupport::Duration === obj && obj.parts.any? {|p| [:years, :months, :days].include?(p[0]) } + ActiveSupport::Duration === obj && obj.parts.any? { |p| [:years, :months, :weeks, :days].include?(p[0]) } end def wrap_with_time_zone(time) |