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author | Jeremy Kemper <jeremy@bitsweat.net> | 2009-03-26 19:03:37 -0700 |
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committer | Jeremy Kemper <jeremy@bitsweat.net> | 2009-03-26 19:03:37 -0700 |
commit | 7985298948534bf13e01e054f8ff4c5248780dca (patch) | |
tree | c43e7dd8835a9d5008a6d2f69ee5ba88ab6fc501 /activesupport/lib/active_support/core_ext/date_time/calculations.rb | |
parent | 34929fed2254570941309a731a386de573e64b5a (diff) | |
download | rails-7985298948534bf13e01e054f8ff4c5248780dca.tar.gz rails-7985298948534bf13e01e054f8ff4c5248780dca.tar.bz2 rails-7985298948534bf13e01e054f8ff4c5248780dca.zip |
Convert DateTime extension modules to class reopens
Diffstat (limited to 'activesupport/lib/active_support/core_ext/date_time/calculations.rb')
-rw-r--r-- | activesupport/lib/active_support/core_ext/date_time/calculations.rb | 202 |
1 files changed, 94 insertions, 108 deletions
diff --git a/activesupport/lib/active_support/core_ext/date_time/calculations.rb b/activesupport/lib/active_support/core_ext/date_time/calculations.rb index 0099431e9d..41cf020f94 100644 --- a/activesupport/lib/active_support/core_ext/date_time/calculations.rb +++ b/activesupport/lib/active_support/core_ext/date_time/calculations.rb @@ -1,126 +1,112 @@ require 'rational' -module ActiveSupport #:nodoc: - module CoreExtensions #:nodoc: - module DateTime #:nodoc: - # Enables the use of time calculations within DateTime itself - module Calculations - def self.included(base) #:nodoc: - base.extend ClassMethods - - base.class_eval do - alias_method :compare_without_coercion, :<=> - alias_method :<=>, :compare_with_coercion - end - end - - module ClassMethods - # DateTimes aren't aware of DST rules, so use a consistent non-DST offset when creating a DateTime with an offset in the local zone - def local_offset - ::Time.local(2007).utc_offset.to_r / 86400 - end +class DateTime + class << self + # DateTimes aren't aware of DST rules, so use a consistent non-DST offset when creating a DateTime with an offset in the local zone + def local_offset + ::Time.local(2007).utc_offset.to_r / 86400 + end - def current - ::Time.zone_default ? ::Time.zone.now.to_datetime : ::Time.now.to_datetime - end - end + def current + ::Time.zone_default ? ::Time.zone.now.to_datetime : ::Time.now.to_datetime + end + end - # Tells whether the DateTime object's datetime lies in the past - def past? - self < ::DateTime.current - end + # Tells whether the DateTime object's datetime lies in the past + def past? + self < ::DateTime.current + end - # Tells whether the DateTime object's datetime lies in the future - def future? - self > ::DateTime.current - end + # Tells whether the DateTime object's datetime lies in the future + def future? + self > ::DateTime.current + end - # Seconds since midnight: DateTime.now.seconds_since_midnight - def seconds_since_midnight - self.sec + (self.min * 60) + (self.hour * 3600) - end + # Seconds since midnight: DateTime.now.seconds_since_midnight + def seconds_since_midnight + sec + (min * 60) + (hour * 3600) + end - # Returns a new DateTime where one or more of the elements have been changed according to the +options+ parameter. The time options - # (hour, minute, sec) reset cascadingly, so if only the hour is passed, then minute and sec is set to 0. If the hour and - # minute is passed, then sec is set to 0. - def change(options) - ::DateTime.civil( - options[:year] || self.year, - options[:month] || self.month, - options[:day] || self.day, - options[:hour] || self.hour, - options[:min] || (options[:hour] ? 0 : self.min), - options[:sec] || ((options[:hour] || options[:min]) ? 0 : self.sec), - options[:offset] || self.offset, - options[:start] || self.start - ) - end + # Returns a new DateTime where one or more of the elements have been changed according to the +options+ parameter. The time options + # (hour, minute, sec) reset cascadingly, so if only the hour is passed, then minute and sec is set to 0. If the hour and + # minute is passed, then sec is set to 0. + def change(options) + ::DateTime.civil( + options[:year] || year, + options[:month] || month, + options[:day] || day, + options[:hour] || hour, + options[:min] || (options[:hour] ? 0 : min), + options[:sec] || ((options[:hour] || options[:min]) ? 0 : sec), + options[:offset] || offset, + options[:start] || start + ) + end - # Uses Date to provide precise Time calculations for years, months, and days. - # The +options+ parameter takes a hash with any of these keys: <tt>:years</tt>, - # <tt>:months</tt>, <tt>:weeks</tt>, <tt>:days</tt>, <tt>:hours</tt>, - # <tt>:minutes</tt>, <tt>:seconds</tt>. - def advance(options) - d = to_date.advance(options) - datetime_advanced_by_date = change(:year => d.year, :month => d.month, :day => d.day) - seconds_to_advance = (options[:seconds] || 0) + (options[:minutes] || 0) * 60 + (options[:hours] || 0) * 3600 - seconds_to_advance == 0 ? datetime_advanced_by_date : datetime_advanced_by_date.since(seconds_to_advance) - end + # Uses Date to provide precise Time calculations for years, months, and days. + # The +options+ parameter takes a hash with any of these keys: <tt>:years</tt>, + # <tt>:months</tt>, <tt>:weeks</tt>, <tt>:days</tt>, <tt>:hours</tt>, + # <tt>:minutes</tt>, <tt>:seconds</tt>. + def advance(options) + d = to_date.advance(options) + datetime_advanced_by_date = change(:year => d.year, :month => d.month, :day => d.day) + seconds_to_advance = (options[:seconds] || 0) + (options[:minutes] || 0) * 60 + (options[:hours] || 0) * 3600 + seconds_to_advance == 0 ? datetime_advanced_by_date : datetime_advanced_by_date.since(seconds_to_advance) + end - # Returns a new DateTime representing the time a number of seconds ago - # Do not use this method in combination with x.months, use months_ago instead! - def ago(seconds) - self.since(-seconds) - end + # Returns a new DateTime representing the time a number of seconds ago + # Do not use this method in combination with x.months, use months_ago instead! + def ago(seconds) + since(-seconds) + end - # Returns a new DateTime representing the time a number of seconds since the instance time - # Do not use this method in combination with x.months, use months_since instead! - def since(seconds) - self + Rational(seconds.round, 86400) - end - alias :in :since + # Returns a new DateTime representing the time a number of seconds since the instance time + # Do not use this method in combination with x.months, use months_since instead! + def since(seconds) + self + Rational(seconds.round, 86400) + end + alias :in :since - # Returns a new DateTime representing the start of the day (0:00) - def beginning_of_day - change(:hour => 0) - end - alias :midnight :beginning_of_day - alias :at_midnight :beginning_of_day - alias :at_beginning_of_day :beginning_of_day + # Returns a new DateTime representing the start of the day (0:00) + def beginning_of_day + change(:hour => 0) + end + alias :midnight :beginning_of_day + alias :at_midnight :beginning_of_day + alias :at_beginning_of_day :beginning_of_day - # Returns a new DateTime representing the end of the day (23:59:59) - def end_of_day - change(:hour => 23, :min => 59, :sec => 59) - end + # Returns a new DateTime representing the end of the day (23:59:59) + def end_of_day + change(:hour => 23, :min => 59, :sec => 59) + end - # Adjusts DateTime to UTC by adding its offset value; offset is set to 0 - # - # Example: - # - # DateTime.civil(2005, 2, 21, 10, 11, 12, Rational(-6, 24)) # => Mon, 21 Feb 2005 10:11:12 -0600 - # DateTime.civil(2005, 2, 21, 10, 11, 12, Rational(-6, 24)).utc # => Mon, 21 Feb 2005 16:11:12 +0000 - def utc - new_offset(0) - end - alias_method :getutc, :utc + # Adjusts DateTime to UTC by adding its offset value; offset is set to 0 + # + # Example: + # + # DateTime.civil(2005, 2, 21, 10, 11, 12, Rational(-6, 24)) # => Mon, 21 Feb 2005 10:11:12 -0600 + # DateTime.civil(2005, 2, 21, 10, 11, 12, Rational(-6, 24)).utc # => Mon, 21 Feb 2005 16:11:12 +0000 + def utc + new_offset(0) + end + alias_method :getutc, :utc - # Returns true if offset == 0 - def utc? - offset == 0 - end + # Returns true if offset == 0 + def utc? + offset == 0 + end - # Returns the offset value in seconds - def utc_offset - (offset * 86400).to_i - end + # Returns the offset value in seconds + def utc_offset + (offset * 86400).to_i + end - # Layers additional behavior on DateTime#<=> so that Time and ActiveSupport::TimeWithZone instances can be compared with a DateTime - def compare_with_coercion(other) - other = other.comparable_time if other.respond_to?(:comparable_time) - other = other.to_datetime unless other.acts_like?(:date) - compare_without_coercion(other) - end - end - end + # Layers additional behavior on DateTime#<=> so that Time and ActiveSupport::TimeWithZone instances can be compared with a DateTime + def compare_with_coercion(other) + other = other.comparable_time if other.respond_to?(:comparable_time) + other = other.to_datetime unless other.acts_like?(:date) + compare_without_coercion(other) end + alias_method :compare_without_coercion, :<=> + alias_method :<=>, :compare_with_coercion end |