+++ /dev/null
-# The TimeZone class serves as a wrapper around TZInfo::Timezone instances. It allows us to do the following:
-#
-# * Limit the set of zones provided by TZInfo to a meaningful subset of 142 zones.
-# * Retrieve and display zones with a friendlier name (e.g., "Eastern Time (US & Canada)" instead of "America/New_York").
-# * Lazily load TZInfo::Timezone instances only when they're needed.
-# * Create ActiveSupport::TimeWithZone instances via TimeZone's +local+, +parse+, +at+ and +now+ methods.
-#
-# If you set <tt>config.time_zone</tt> in the Rails Initializer, you can access this TimeZone object via <tt>Time.zone</tt>:
-#
-# # environment.rb:
-# Rails::Initializer.run do |config|
-# config.time_zone = "Eastern Time (US & Canada)"
-# end
-#
-# Time.zone # => #<TimeZone:0x514834...>
-# Time.zone.name # => "Eastern Time (US & Canada)"
-# Time.zone.now # => Sun, 18 May 2008 14:30:44 EDT -04:00
-#
-# The version of TZInfo bundled with Active Support only includes the definitions necessary to support the zones
-# defined by the TimeZone class. If you need to use zones that aren't defined by TimeZone, you'll need to install the TZInfo gem
-# (if a recent version of the gem is installed locally, this will be used instead of the bundled version.)
-module ActiveSupport
- class TimeZone
- unless const_defined?(:MAPPING)
- # Keys are Rails TimeZone names, values are TZInfo identifiers
- MAPPING = {
- "International Date Line West" => "Pacific/Midway",
- "Midway Island" => "Pacific/Midway",
- "Samoa" => "Pacific/Pago_Pago",
- "Hawaii" => "Pacific/Honolulu",
- "Alaska" => "America/Juneau",
- "Pacific Time (US & Canada)" => "America/Los_Angeles",
- "Tijuana" => "America/Tijuana",
- "Mountain Time (US & Canada)" => "America/Denver",
- "Arizona" => "America/Phoenix",
- "Chihuahua" => "America/Chihuahua",
- "Mazatlan" => "America/Mazatlan",
- "Central Time (US & Canada)" => "America/Chicago",
- "Saskatchewan" => "America/Regina",
- "Guadalajara" => "America/Mexico_City",
- "Mexico City" => "America/Mexico_City",
- "Monterrey" => "America/Monterrey",
- "Central America" => "America/Guatemala",
- "Eastern Time (US & Canada)" => "America/New_York",
- "Indiana (East)" => "America/Indiana/Indianapolis",
- "Bogota" => "America/Bogota",
- "Lima" => "America/Lima",
- "Quito" => "America/Lima",
- "Atlantic Time (Canada)" => "America/Halifax",
- "Caracas" => "America/Caracas",
- "La Paz" => "America/La_Paz",
- "Santiago" => "America/Santiago",
- "Newfoundland" => "America/St_Johns",
- "Brasilia" => "America/Sao_Paulo",
- "Buenos Aires" => "America/Argentina/Buenos_Aires",
- "Georgetown" => "America/Argentina/San_Juan",
- "Greenland" => "America/Godthab",
- "Mid-Atlantic" => "Atlantic/South_Georgia",
- "Azores" => "Atlantic/Azores",
- "Cape Verde Is." => "Atlantic/Cape_Verde",
- "Dublin" => "Europe/Dublin",
- "Edinburgh" => "Europe/Dublin",
- "Lisbon" => "Europe/Lisbon",
- "London" => "Europe/London",
- "Casablanca" => "Africa/Casablanca",
- "Monrovia" => "Africa/Monrovia",
- "UTC" => "Etc/UTC",
- "Belgrade" => "Europe/Belgrade",
- "Bratislava" => "Europe/Bratislava",
- "Budapest" => "Europe/Budapest",
- "Ljubljana" => "Europe/Ljubljana",
- "Prague" => "Europe/Prague",
- "Sarajevo" => "Europe/Sarajevo",
- "Skopje" => "Europe/Skopje",
- "Warsaw" => "Europe/Warsaw",
- "Zagreb" => "Europe/Zagreb",
- "Brussels" => "Europe/Brussels",
- "Copenhagen" => "Europe/Copenhagen",
- "Madrid" => "Europe/Madrid",
- "Paris" => "Europe/Paris",
- "Amsterdam" => "Europe/Amsterdam",
- "Berlin" => "Europe/Berlin",
- "Bern" => "Europe/Berlin",
- "Rome" => "Europe/Rome",
- "Stockholm" => "Europe/Stockholm",
- "Vienna" => "Europe/Vienna",
- "West Central Africa" => "Africa/Algiers",
- "Bucharest" => "Europe/Bucharest",
- "Cairo" => "Africa/Cairo",
- "Helsinki" => "Europe/Helsinki",
- "Kyev" => "Europe/Kiev",
- "Riga" => "Europe/Riga",
- "Sofia" => "Europe/Sofia",
- "Tallinn" => "Europe/Tallinn",
- "Vilnius" => "Europe/Vilnius",
- "Athens" => "Europe/Athens",
- "Istanbul" => "Europe/Istanbul",
- "Minsk" => "Europe/Minsk",
- "Jerusalem" => "Asia/Jerusalem",
- "Harare" => "Africa/Harare",
- "Pretoria" => "Africa/Johannesburg",
- "Moscow" => "Europe/Moscow",
- "St. Petersburg" => "Europe/Moscow",
- "Volgograd" => "Europe/Moscow",
- "Kuwait" => "Asia/Kuwait",
- "Riyadh" => "Asia/Riyadh",
- "Nairobi" => "Africa/Nairobi",
- "Baghdad" => "Asia/Baghdad",
- "Tehran" => "Asia/Tehran",
- "Abu Dhabi" => "Asia/Muscat",
- "Muscat" => "Asia/Muscat",
- "Baku" => "Asia/Baku",
- "Tbilisi" => "Asia/Tbilisi",
- "Yerevan" => "Asia/Yerevan",
- "Kabul" => "Asia/Kabul",
- "Ekaterinburg" => "Asia/Yekaterinburg",
- "Islamabad" => "Asia/Karachi",
- "Karachi" => "Asia/Karachi",
- "Tashkent" => "Asia/Tashkent",
- "Chennai" => "Asia/Kolkata",
- "Kolkata" => "Asia/Kolkata",
- "Mumbai" => "Asia/Kolkata",
- "New Delhi" => "Asia/Kolkata",
- "Kathmandu" => "Asia/Katmandu",
- "Astana" => "Asia/Dhaka",
- "Dhaka" => "Asia/Dhaka",
- "Sri Jayawardenepura" => "Asia/Colombo",
- "Almaty" => "Asia/Almaty",
- "Novosibirsk" => "Asia/Novosibirsk",
- "Rangoon" => "Asia/Rangoon",
- "Bangkok" => "Asia/Bangkok",
- "Hanoi" => "Asia/Bangkok",
- "Jakarta" => "Asia/Jakarta",
- "Krasnoyarsk" => "Asia/Krasnoyarsk",
- "Beijing" => "Asia/Shanghai",
- "Chongqing" => "Asia/Chongqing",
- "Hong Kong" => "Asia/Hong_Kong",
- "Urumqi" => "Asia/Urumqi",
- "Kuala Lumpur" => "Asia/Kuala_Lumpur",
- "Singapore" => "Asia/Singapore",
- "Taipei" => "Asia/Taipei",
- "Perth" => "Australia/Perth",
- "Irkutsk" => "Asia/Irkutsk",
- "Ulaan Bataar" => "Asia/Ulaanbaatar",
- "Seoul" => "Asia/Seoul",
- "Osaka" => "Asia/Tokyo",
- "Sapporo" => "Asia/Tokyo",
- "Tokyo" => "Asia/Tokyo",
- "Yakutsk" => "Asia/Yakutsk",
- "Darwin" => "Australia/Darwin",
- "Adelaide" => "Australia/Adelaide",
- "Canberra" => "Australia/Melbourne",
- "Melbourne" => "Australia/Melbourne",
- "Sydney" => "Australia/Sydney",
- "Brisbane" => "Australia/Brisbane",
- "Hobart" => "Australia/Hobart",
- "Vladivostok" => "Asia/Vladivostok",
- "Guam" => "Pacific/Guam",
- "Port Moresby" => "Pacific/Port_Moresby",
- "Magadan" => "Asia/Magadan",
- "Solomon Is." => "Asia/Magadan",
- "New Caledonia" => "Pacific/Noumea",
- "Fiji" => "Pacific/Fiji",
- "Kamchatka" => "Asia/Kamchatka",
- "Marshall Is." => "Pacific/Majuro",
- "Auckland" => "Pacific/Auckland",
- "Wellington" => "Pacific/Auckland",
- "Nuku'alofa" => "Pacific/Tongatapu"
- }.each { |name, zone| name.freeze; zone.freeze }
- MAPPING.freeze
- end
-
- include Comparable
- attr_reader :name
-
- # Create a new TimeZone object with the given name and offset. The
- # offset is the number of seconds that this time zone is offset from UTC
- # (GMT). Seconds were chosen as the offset unit because that is the unit that
- # Ruby uses to represent time zone offsets (see Time#utc_offset).
- def initialize(name, utc_offset, tzinfo = nil)
- @name = name
- @utc_offset = utc_offset
- @tzinfo = tzinfo
- end
-
- def utc_offset
- @utc_offset ||= tzinfo.current_period.utc_offset
- end
-
- # Returns the offset of this time zone as a formatted string, of the
- # format "+HH:MM".
- def formatted_offset(colon=true, alternate_utc_string = nil)
- utc_offset == 0 && alternate_utc_string || utc_offset.to_utc_offset_s(colon)
- end
-
- # Compare this time zone to the parameter. The two are comapred first on
- # their offsets, and then by name.
- def <=>(zone)
- result = (utc_offset <=> zone.utc_offset)
- result = (name <=> zone.name) if result == 0
- result
- end
-
- # Compare #name and TZInfo identifier to a supplied regexp, returning true
- # if a match is found.
- def =~(re)
- return true if name =~ re || MAPPING[name] =~ re
- end
-
- # Returns a textual representation of this time zone.
- def to_s
- "(GMT#{formatted_offset}) #{name}"
- end
-
- # Method for creating new ActiveSupport::TimeWithZone instance in time zone of +self+ from given values. Example:
- #
- # Time.zone = "Hawaii" # => "Hawaii"
- # Time.zone.local(2007, 2, 1, 15, 30, 45) # => Thu, 01 Feb 2007 15:30:45 HST -10:00
- def local(*args)
- time = Time.utc_time(*args)
- ActiveSupport::TimeWithZone.new(nil, self, time)
- end
-
- # Method for creating new ActiveSupport::TimeWithZone instance in time zone of +self+ from number of seconds since the Unix epoch. Example:
- #
- # Time.zone = "Hawaii" # => "Hawaii"
- # Time.utc(2000).to_f # => 946684800.0
- # Time.zone.at(946684800.0) # => Fri, 31 Dec 1999 14:00:00 HST -10:00
- def at(secs)
- utc = Time.at(secs).utc rescue DateTime.civil(1970).since(secs)
- utc.in_time_zone(self)
- end
-
- # Method for creating new ActiveSupport::TimeWithZone instance in time zone of +self+ from parsed string. Example:
- #
- # Time.zone = "Hawaii" # => "Hawaii"
- # Time.zone.parse('1999-12-31 14:00:00') # => Fri, 31 Dec 1999 14:00:00 HST -10:00
- #
- # If upper components are missing from the string, they are supplied from TimeZone#now:
- #
- # Time.zone.now # => Fri, 31 Dec 1999 14:00:00 HST -10:00
- # Time.zone.parse('22:30:00') # => Fri, 31 Dec 1999 22:30:00 HST -10:00
- def parse(str, now=now)
- date_parts = Date._parse(str)
- return if date_parts.blank?
- time = Time.parse(str, now) rescue DateTime.parse(str)
- if date_parts[:offset].nil?
- ActiveSupport::TimeWithZone.new(nil, self, time)
- else
- time.in_time_zone(self)
- end
- end
-
- # Returns an ActiveSupport::TimeWithZone instance representing the current time
- # in the time zone represented by +self+. Example:
- #
- # Time.zone = 'Hawaii' # => "Hawaii"
- # Time.zone.now # => Wed, 23 Jan 2008 20:24:27 HST -10:00
- def now
- Time.now.utc.in_time_zone(self)
- end
-
- # Return the current date in this time zone.
- def today
- tzinfo.now.to_date
- end
-
- # Adjust the given time to the simultaneous time in the time zone represented by +self+. Returns a
- # Time.utc() instance -- if you want an ActiveSupport::TimeWithZone instance, use Time#in_time_zone() instead.
- def utc_to_local(time)
- tzinfo.utc_to_local(time)
- end
-
- # Adjust the given time to the simultaneous time in UTC. Returns a Time.utc() instance.
- def local_to_utc(time, dst=true)
- tzinfo.local_to_utc(time, dst)
- end
-
- # Available so that TimeZone instances respond like TZInfo::Timezone instances
- def period_for_utc(time)
- tzinfo.period_for_utc(time)
- end
-
- # Available so that TimeZone instances respond like TZInfo::Timezone instances
- def period_for_local(time, dst=true)
- tzinfo.period_for_local(time, dst)
- end
-
- # TODO: Preload instead of lazy load for thread safety
- def tzinfo
- require 'tzinfo' unless defined?(TZInfo)
- @tzinfo ||= TZInfo::Timezone.get(MAPPING[name])
- end
-
- unless const_defined?(:ZONES)
- ZONES = []
- ZONES_MAP = {}
- [[-39_600, "International Date Line West", "Midway Island", "Samoa" ],
- [-36_000, "Hawaii" ],
- [-32_400, "Alaska" ],
- [-28_800, "Pacific Time (US & Canada)", "Tijuana" ],
- [-25_200, "Mountain Time (US & Canada)", "Chihuahua", "Mazatlan",
- "Arizona" ],
- [-21_600, "Central Time (US & Canada)", "Saskatchewan", "Guadalajara",
- "Mexico City", "Monterrey", "Central America" ],
- [-18_000, "Eastern Time (US & Canada)", "Indiana (East)", "Bogota",
- "Lima", "Quito" ],
- [-16_200, "Caracas" ],
- [-14_400, "Atlantic Time (Canada)", "La Paz", "Santiago" ],
- [-12_600, "Newfoundland" ],
- [-10_800, "Brasilia", "Buenos Aires", "Georgetown", "Greenland" ],
- [ -7_200, "Mid-Atlantic" ],
- [ -3_600, "Azores", "Cape Verde Is." ],
- [ 0, "Dublin", "Edinburgh", "Lisbon", "London", "Casablanca",
- "Monrovia", "UTC" ],
- [ 3_600, "Belgrade", "Bratislava", "Budapest", "Ljubljana", "Prague",
- "Sarajevo", "Skopje", "Warsaw", "Zagreb", "Brussels",
- "Copenhagen", "Madrid", "Paris", "Amsterdam", "Berlin",
- "Bern", "Rome", "Stockholm", "Vienna",
- "West Central Africa" ],
- [ 7_200, "Bucharest", "Cairo", "Helsinki", "Kyev", "Riga", "Sofia",
- "Tallinn", "Vilnius", "Athens", "Istanbul", "Minsk",
- "Jerusalem", "Harare", "Pretoria" ],
- [ 10_800, "Moscow", "St. Petersburg", "Volgograd", "Kuwait", "Riyadh",
- "Nairobi", "Baghdad" ],
- [ 12_600, "Tehran" ],
- [ 14_400, "Abu Dhabi", "Muscat", "Baku", "Tbilisi", "Yerevan" ],
- [ 16_200, "Kabul" ],
- [ 18_000, "Ekaterinburg", "Islamabad", "Karachi", "Tashkent" ],
- [ 19_800, "Chennai", "Kolkata", "Mumbai", "New Delhi", "Sri Jayawardenepura" ],
- [ 20_700, "Kathmandu" ],
- [ 21_600, "Astana", "Dhaka", "Almaty",
- "Novosibirsk" ],
- [ 23_400, "Rangoon" ],
- [ 25_200, "Bangkok", "Hanoi", "Jakarta", "Krasnoyarsk" ],
- [ 28_800, "Beijing", "Chongqing", "Hong Kong", "Urumqi",
- "Kuala Lumpur", "Singapore", "Taipei", "Perth", "Irkutsk",
- "Ulaan Bataar" ],
- [ 32_400, "Seoul", "Osaka", "Sapporo", "Tokyo", "Yakutsk" ],
- [ 34_200, "Darwin", "Adelaide" ],
- [ 36_000, "Canberra", "Melbourne", "Sydney", "Brisbane", "Hobart",
- "Vladivostok", "Guam", "Port Moresby" ],
- [ 39_600, "Magadan", "Solomon Is.", "New Caledonia" ],
- [ 43_200, "Fiji", "Kamchatka", "Marshall Is.", "Auckland",
- "Wellington" ],
- [ 46_800, "Nuku'alofa" ]].
- each do |offset, *places|
- places.each do |place|
- place.freeze
- zone = new(place, offset)
- ZONES << zone
- ZONES_MAP[place] = zone
- end
- end
- ZONES.sort!
- ZONES.freeze
- ZONES_MAP.freeze
-
- US_ZONES = ZONES.find_all { |z| z.name =~ /US|Arizona|Indiana|Hawaii|Alaska/ }
- US_ZONES.freeze
- end
-
- class << self
- alias_method :create, :new
-
- # Return a TimeZone instance with the given name, or +nil+ if no
- # such TimeZone instance exists. (This exists to support the use of
- # this class with the +composed_of+ macro.)
- def new(name)
- self[name]
- end
-
- # Return an array of all TimeZone objects. There are multiple
- # TimeZone objects per time zone, in many cases, to make it easier
- # for users to find their own time zone.
- def all
- ZONES
- end
-
- # Locate a specific time zone object. If the argument is a string, it
- # is interpreted to mean the name of the timezone to locate. If it is a
- # numeric value it is either the hour offset, or the second offset, of the
- # timezone to find. (The first one with that offset will be returned.)
- # Returns +nil+ if no such time zone is known to the system.
- def [](arg)
- case arg
- when String
- ZONES_MAP[arg]
- when Numeric, ActiveSupport::Duration
- arg *= 3600 if arg.abs <= 13
- all.find { |z| z.utc_offset == arg.to_i }
- else
- raise ArgumentError, "invalid argument to TimeZone[]: #{arg.inspect}"
- end
- end
-
- # A convenience method for returning a collection of TimeZone objects
- # for time zones in the USA.
- def us_zones
- US_ZONES
- end
- end
- end
-end
projects / feedcatcher.git / blobdiff