From f9fca1eb63f3e52f8438d7ddf9f27c9159e7b34a Mon Sep 17 00:00:00 2001 From: David Heinemeier Hansson Date: Wed, 23 Feb 2005 15:13:03 +0000 Subject: Moved TimeZone to Active Support git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@768 5ecf4fe2-1ee6-0310-87b1-e25e094e27de --- activerecord/lib/active_record/values/time_zone.rb | 155 --------------------- 1 file changed, 155 deletions(-) delete mode 100644 activerecord/lib/active_record/values/time_zone.rb (limited to 'activerecord/lib/active_record/values/time_zone.rb') diff --git a/activerecord/lib/active_record/values/time_zone.rb b/activerecord/lib/active_record/values/time_zone.rb deleted file mode 100644 index 7766727a40..0000000000 --- a/activerecord/lib/active_record/values/time_zone.rb +++ /dev/null @@ -1,155 +0,0 @@ -# A value object representing a time zone. A time zone is simply a named -# offset (in seconds) from GMT. Note that two time zone objects are only -# equivalent if they have both the same offset, and the same name. -# -# A TimeZone instance may be used to convert a Time value to the corresponding -# time zone. -# -# The class also includes #all, which returns a list of all TimeZone objects. -class TimeZone - include Comparable - - attr_reader :name, :utc_offset - - # 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) - @name = name - @utc_offset = utc_offset - end - - # Returns the offset of this time zone as a formatted string, of the - # format "+HH:MM". If the offset is zero, this returns the empty - # string. - def formatted_offset - return "" if utc_offset == 0 - sign = (utc_offset < 0 ? -1 : 1) - hours = utc_offset.abs / 3600 - minutes = (utc_offset.abs % 3600) / 60 - "%+03d:%02d" % [ hours * sign, minutes ] - end - - # Compute and return the current time, in the time zone represented by - # +self+. - def now - adjust(Time.now) - end - - # Adjust the given time to the time zone represented by +self+. - def adjust(time) - offset = time.utc_offset - time + utc_offset - offset - 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 - - # Returns a textual representation of this time zone. - def to_s - "(GMT#{formatted_offset}) #{name}" - end - - @@zones = nil - - class << self - # Create a new TimeZone instance with the given name and offset. - def create(name, offset) - zone = allocate - zone.send :initialize, name, offset - zone - end - - # 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 - unless @@zones - @@zones = [] - [[-43_200, "International Date Line West" ], - [-39_600, "Midway Island", "Samoa" ], - [-36_000, "Hawaii" ], - [-32_400, "Alaska" ], - [-28_800, "Pacific Time (US & Canada)", "Tijuana" ], - [-25_200, "Mountain Time (US & Canada)", "Chihuahua", "La Paz", - "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" ], - [-14_400, "Atlantic Time (Canada)", "Caracas", "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" ], - [ 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" ], - [ 20_700, "Kathmandu" ], - [ 21_600, "Astana", "Dhaka", "Sri Jayawardenepura", "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 { |place| @@zones << create(place, offset).freeze } - end - @@zones.sort! - end - @@zones - end - - # Locate a specific time zone object by the name it was given. Returns - # +nil+ if no such time zone is known to the system. - def [](name) - all.find { |z| z.name == name } - end - - # A regular expression that matches the names of all time zones in - # the USA. - US_ZONES = /US|Arizona|Indiana|Hawaii|Alaska/ - - # A convenience method for returning a collection of TimeZone objects - # for time zones in the USA. - def us_zones - all.find_all { |z| z.name =~ US_ZONES } - end - end -end \ No newline at end of file -- cgit v1.2.3