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author | Jeremy Kemper <jeremy@bitsweat.net> | 2007-06-04 18:14:42 +0000 |
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committer | Jeremy Kemper <jeremy@bitsweat.net> | 2007-06-04 18:14:42 +0000 |
commit | 601778e38af53c66d604fe31a3b84ba84d973511 (patch) | |
tree | 8bd6f27a431e2a20c83fac11d18a2315a0d33ae0 /activesupport/lib/active_support | |
parent | 1312259294e859646d5c1a4d3000f2cd160fae94 (diff) | |
download | rails-601778e38af53c66d604fe31a3b84ba84d973511.tar.gz rails-601778e38af53c66d604fe31a3b84ba84d973511.tar.bz2 rails-601778e38af53c66d604fe31a3b84ba84d973511.zip |
Date.yesterday and .tomorrow. Closes #8571.
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6934 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
Diffstat (limited to 'activesupport/lib/active_support')
-rw-r--r-- | activesupport/lib/active_support/core_ext/date/calculations.rb | 256 |
1 files changed, 132 insertions, 124 deletions
diff --git a/activesupport/lib/active_support/core_ext/date/calculations.rb b/activesupport/lib/active_support/core_ext/date/calculations.rb index de354540e9..5c4ed65b28 100644 --- a/activesupport/lib/active_support/core_ext/date/calculations.rb +++ b/activesupport/lib/active_support/core_ext/date/calculations.rb @@ -4,7 +4,7 @@ module ActiveSupport #:nodoc: # Enables the use of time calculations within Time itself module Calculations def self.included(base) #:nodoc: - base.send(:include, ClassMethods) + base.send(:extend, ClassMethods) base.send(:alias_method, :plus_without_duration, :+) base.send(:alias_method, :+, :plus_with_duration) @@ -14,152 +14,160 @@ module ActiveSupport #:nodoc: end module ClassMethods - def plus_with_duration(other) #:nodoc: - if ActiveSupport::Duration === other - other.since(self) - else - plus_without_duration(other) - end - end - - def minus_with_duration(other) #:nodoc: - if ActiveSupport::Duration === other - plus_with_duration(-other) - else - minus_without_duration(other) - end + def yesterday + ::Date.today.yesterday end - # Provides precise Date calculations for years, months, and days. The +options+ parameter takes a hash with - # any of these keys: :months, :days, :years. - def advance(options) - d = ::Date.new(year + (options.delete(:years) || 0), month, day) - d = d >> options.delete(:months) if options[:months] - d = d + options.delete(:days) if options[:days] - d + def tomorrow + ::Date.today.tomorrow end - - # Returns a new Date where one or more of the elements have been changed according to the +options+ parameter. - # - # Examples: - # - # Date.new(2007, 5, 12).change(:day => 1) # => Date.new(2007, 5, 12) - # Date.new(2007, 5, 12).change(:year => 2005, :month => 1) # => Date.new(2005, 1, 12) - def change(options) - ::Date.new( - options[:year] || self.year, - options[:month] || self.month, - options[:day] || options[:mday] || self.day # mday is deprecated - ) + end + + def plus_with_duration(other) #:nodoc: + if ActiveSupport::Duration === other + other.since(self) + else + plus_without_duration(other) end - - # Returns a new Date/DateTime representing the time a number of specified months ago - def months_ago(months) - months_since(-months) + end + + def minus_with_duration(other) #:nodoc: + if ActiveSupport::Duration === other + plus_with_duration(-other) + else + minus_without_duration(other) end + end + + # Provides precise Date calculations for years, months, and days. The +options+ parameter takes a hash with + # any of these keys: :months, :days, :years. + def advance(options) + d = ::Date.new(year + (options.delete(:years) || 0), month, day) + d = d >> options.delete(:months) if options[:months] + d = d + options.delete(:days) if options[:days] + d + end - def months_since(months) - year, month, day = self.year, self.month, self.day - - month += months - - # in case months is negative - while month < 1 - month += 12 - year -= 1 - end + # Returns a new Date where one or more of the elements have been changed according to the +options+ parameter. + # + # Examples: + # + # Date.new(2007, 5, 12).change(:day => 1) # => Date.new(2007, 5, 12) + # Date.new(2007, 5, 12).change(:year => 2005, :month => 1) # => Date.new(2005, 1, 12) + def change(options) + ::Date.new( + options[:year] || self.year, + options[:month] || self.month, + options[:day] || options[:mday] || self.day # mday is deprecated + ) + end + + # Returns a new Date/DateTime representing the time a number of specified months ago + def months_ago(months) + months_since(-months) + end - # in case months is positive - while month > 12 - month -= 12 - year += 1 - end + def months_since(months) + year, month, day = self.year, self.month, self.day - max = ::Time.days_in_month(month, year) - day = max if day > max + month += months - change(:year => year, :month => month, :day => day) + # in case months is negative + while month < 1 + month += 12 + year -= 1 end - # Returns a new Date/DateTime representing the time a number of specified years ago - def years_ago(years) - change(:year => self.year - years) + # in case months is positive + while month > 12 + month -= 12 + year += 1 end - def years_since(years) - change(:year => self.year + years) - end + max = ::Time.days_in_month(month, year) + day = max if day > max - # Short-hand for years_ago(1) - def last_year - years_ago(1) - end + change(:year => year, :month => month, :day => day) + end - # Short-hand for years_since(1) - def next_year - years_since(1) - end + # Returns a new Date/DateTime representing the time a number of specified years ago + def years_ago(years) + change(:year => self.year - years) + end - # Short-hand for months_ago(1) - def last_month - months_ago(1) - end + def years_since(years) + change(:year => self.year + years) + end - # Short-hand for months_since(1) - def next_month - months_since(1) - end + # Short-hand for years_ago(1) + def last_year + years_ago(1) + end - # Returns a new Date/DateTime representing the "start" of this week (i.e, Monday; DateTime objects will have time set to 0:00) - def beginning_of_week - days_to_monday = self.wday!=0 ? self.wday-1 : 6 - result = self - days_to_monday - self.acts_like?(:time) ? result.midnight : result - end - alias :monday :beginning_of_week - alias :at_beginning_of_week :beginning_of_week - - # Returns a new Date/DateTime representing the start of the given day in next week (default is Monday). - def next_week(day = :monday) - days_into_week = { :monday => 0, :tuesday => 1, :wednesday => 2, :thursday => 3, :friday => 4, :saturday => 5, :sunday => 6} - result = (self + 7).beginning_of_week + days_into_week[day] - self.acts_like?(:time) ? result.change(:hour => 0) : result - end - - # Returns a new ; DateTime objects will have time set to 0:00DateTime representing the start of the month (1st of the month; DateTime objects will have time set to 0:00) - def beginning_of_month - self.acts_like?(:time) ? change(:day => 1,:hour => 0, :min => 0, :sec => 0) : change(:day => 1) - end - alias :at_beginning_of_month :beginning_of_month + # Short-hand for years_since(1) + def next_year + years_since(1) + end - # Returns a new Date/DateTime representing the end of the month (last day of the month; DateTime objects will have time set to 0:00) - def end_of_month - last_day = ::Time.days_in_month( self.month, self.year ) - self.acts_like?(:time) ? change(:day => last_day,:hour => 0, :min => 0, :sec => 0) : change(:day => last_day) - end - alias :at_end_of_month :end_of_month + # Short-hand for months_ago(1) + def last_month + months_ago(1) + end - # Returns a new Date/DateTime representing the start of the quarter (1st of january, april, july, october; DateTime objects will have time set to 0:00) - def beginning_of_quarter - beginning_of_month.change(:month => [10, 7, 4, 1].detect { |m| m <= self.month }) - end - alias :at_beginning_of_quarter :beginning_of_quarter + # Short-hand for months_since(1) + def next_month + months_since(1) + end - # Returns a new Date/DateTime representing the start of the year (1st of january; DateTime objects will have time set to 0:00) - def beginning_of_year - self.acts_like?(:time) ? change(:month => 1, :day => 1, :hour => 0, :min => 0, :sec => 0) : change(:month => 1, :day => 1) - end - alias :at_beginning_of_year :beginning_of_year + # Returns a new Date/DateTime representing the "start" of this week (i.e, Monday; DateTime objects will have time set to 0:00) + def beginning_of_week + days_to_monday = self.wday!=0 ? self.wday-1 : 6 + result = self - days_to_monday + self.acts_like?(:time) ? result.midnight : result + end + alias :monday :beginning_of_week + alias :at_beginning_of_week :beginning_of_week + + # Returns a new Date/DateTime representing the start of the given day in next week (default is Monday). + def next_week(day = :monday) + days_into_week = { :monday => 0, :tuesday => 1, :wednesday => 2, :thursday => 3, :friday => 4, :saturday => 5, :sunday => 6} + result = (self + 7).beginning_of_week + days_into_week[day] + self.acts_like?(:time) ? result.change(:hour => 0) : result + end + + # Returns a new ; DateTime objects will have time set to 0:00DateTime representing the start of the month (1st of the month; DateTime objects will have time set to 0:00) + def beginning_of_month + self.acts_like?(:time) ? change(:day => 1,:hour => 0, :min => 0, :sec => 0) : change(:day => 1) + end + alias :at_beginning_of_month :beginning_of_month - # Convenience method which returns a new Date/DateTime representing the time 1 day ago - def yesterday - self - 1 - end + # Returns a new Date/DateTime representing the end of the month (last day of the month; DateTime objects will have time set to 0:00) + def end_of_month + last_day = ::Time.days_in_month( self.month, self.year ) + self.acts_like?(:time) ? change(:day => last_day,:hour => 0, :min => 0, :sec => 0) : change(:day => last_day) + end + alias :at_end_of_month :end_of_month - # Convenience method which returns a new Date/DateTime representing the time 1 day since the instance time - def tomorrow - self + 1 - end + # Returns a new Date/DateTime representing the start of the quarter (1st of january, april, july, october; DateTime objects will have time set to 0:00) + def beginning_of_quarter + beginning_of_month.change(:month => [10, 7, 4, 1].detect { |m| m <= self.month }) + end + alias :at_beginning_of_quarter :beginning_of_quarter + + # Returns a new Date/DateTime representing the start of the year (1st of january; DateTime objects will have time set to 0:00) + def beginning_of_year + self.acts_like?(:time) ? change(:month => 1, :day => 1, :hour => 0, :min => 0, :sec => 0) : change(:month => 1, :day => 1) + end + alias :at_beginning_of_year :beginning_of_year + + # Convenience method which returns a new Date/DateTime representing the time 1 day ago + def yesterday + self - 1 + end + + # Convenience method which returns a new Date/DateTime representing the time 1 day since the instance time + def tomorrow + self + 1 end end end |