Method: When::Parts::Timezone#initialize

Defined in:
lib/when_exe/parts/timezone.rb

#initialize(identifier) ⇒ Timezone

オブジェクト生成

Parameters:

  • identifier (String) —

    識別名 ( “America/New_York” など)


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# File 'lib/when_exe/parts/timezone.rb', line 148

def initialize(identifier)
  @identifier = identifier
  id, query   = identifier.split('?', 2)
  @timezone   = TZInfo::Timezone.get(id.sub(/\(.+?\)\z/,''))
  unless TZInfo::TimeOrDateTime.method_defined?(:_to_datetime)
    if TZInfo::RubyCoreSupport.respond_to?(:datetime_new)
      TZInfo::TimeOrDateTime.class_eval %Q{
        alias :_to_datetime :to_datetime
        ::Rational
        def to_datetime
          unless @datetime
            u = usec
            s = u == 0 ? sec : Rational(sec * 1000000 + u, 1000000)
            @datetime = TZInfo::RubyCoreSupport.datetime_new(year, mon, mday, hour, min, s, 0, Date::GREGORIAN)
          end
          @datetime
        end
      }
    else
      TZInfo::TimeOrDateTime.class_eval %Q{
        alias :_to_datetime :to_datetime
        def to_datetime
          @datetime ||= DateTime.new(year, mon, mday, hour, min, sec, 0, Date::GREGORIAN)
        end
      }
    end
  end
  dst, std  = _offsets(Time.now.to_i)
  options   = query ? Hash[*(query.split('&').map {|item| item.split('=',2)}.flatten)] : {}
  @standard = When::TM::Clock.new(options.merge({:zone=>std, :tz_prop=>self}))
  if std == dst
    @daylight      = @standard
    @tz_difference = 0
  else
    @daylight      = When::TM::Clock.new(options.merge({:zone=>dst, :tz_prop=>self}))
    @tz_difference = @standard.universal_time - @daylight.universal_time
  end
  @indices = When::Coordinates::DefaultTimeIndices
end