diff options
Diffstat (limited to 'activesupport/lib/active_support/values/time_zone.rb')
| -rw-r--r-- | activesupport/lib/active_support/values/time_zone.rb | 52 |
1 files changed, 20 insertions, 32 deletions
diff --git a/activesupport/lib/active_support/values/time_zone.rb b/activesupport/lib/active_support/values/time_zone.rb index 3cf82a24b9..beaac42fa1 100644 --- a/activesupport/lib/active_support/values/time_zone.rb +++ b/activesupport/lib/active_support/values/time_zone.rb @@ -1,3 +1,5 @@ +require 'tzinfo' +require 'thread_safe' require 'active_support/core_ext/object/blank' require 'active_support/core_ext/object/try' @@ -184,6 +186,8 @@ module ActiveSupport UTC_OFFSET_WITH_COLON = '%s%02d:%02d' UTC_OFFSET_WITHOUT_COLON = UTC_OFFSET_WITH_COLON.sub(':', '') + @lazy_zones_map = ThreadSafe::Cache.new + # Assumes self represents an offset from UTC in seconds (as returned from # Time#utc_offset) and turns this into an +HH:MM formatted string. # @@ -205,8 +209,6 @@ module ActiveSupport # (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 = nil, tzinfo = nil) - self.class.send(:require_tzinfo) - @name = name @utc_offset = utc_offset @tzinfo = tzinfo || TimeZone.find_tzinfo(name) @@ -232,6 +234,7 @@ module ActiveSupport # Compare this time zone to the parameter. The two are compared first on # their offsets, and then by name. def <=>(zone) + return unless zone.respond_to? :utc_offset result = (utc_offset <=> zone.utc_offset) result = (name <=> zone.name) if result == 0 result @@ -314,6 +317,16 @@ module ActiveSupport tzinfo.now.to_date end + # Returns the next date in this time zone. + def tomorrow + today + 1 + end + + # Returns the previous date in this time zone. + def yesterday + today - 1 + 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. @@ -346,14 +359,14 @@ module ActiveSupport class << self alias_method :create, :new - # Return a TimeZone instance with the given name, or +nil+ if no + # Returns 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 + # Returns 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 @@ -362,10 +375,8 @@ module ActiveSupport def zones_map @zones_map ||= begin - new_zones_names = MAPPING.keys - lazy_zones_map.keys - new_zones = Hash[new_zones_names.map { |place| [place, create(place)] }] - - lazy_zones_map.merge(new_zones) + MAPPING.each_key {|place| self[place]} # load all the zones + @lazy_zones_map end end @@ -378,7 +389,7 @@ module ActiveSupport case arg when String begin - lazy_zones_map[arg] ||= lookup(arg).tap { |tz| tz.utc_offset } + @lazy_zones_map[arg] ||= create(arg).tap { |tz| tz.utc_offset } rescue TZInfo::InvalidTimezoneIdentifier nil end @@ -395,29 +406,6 @@ module ActiveSupport def us_zones @us_zones ||= all.find_all { |z| z.name =~ /US|Arizona|Indiana|Hawaii|Alaska/ } end - - protected - - def require_tzinfo - require 'tzinfo' unless defined?(::TZInfo) - rescue LoadError - $stderr.puts "You don't have tzinfo installed in your application. Please add it to your Gemfile and run bundle install" - raise - end - - private - - def lookup(name) - (tzinfo = find_tzinfo(name)) && create(tzinfo.name.freeze) - end - - def lazy_zones_map - require_tzinfo - - @lazy_zones_map ||= Hash.new do |hash, place| - hash[place] = create(place) if MAPPING.has_key?(place) - end - end end private |