--- /dev/null
+module ActiveSupport #:nodoc:
+ module CoreExtensions #:nodoc:
+ module Integer #:nodoc:
+ # Enables the use of time calculations and declarations, like 45.minutes + 2.hours + 4.years.
+ #
+ # These methods use Time#advance for precise date calculations when using from_now, ago, etc.
+ # as well as adding or subtracting their results from a Time object. For example:
+ #
+ # # equivalent to Time.now.advance(:months => 1)
+ # 1.month.from_now
+ #
+ # # equivalent to Time.now.advance(:years => 2)
+ # 2.years.from_now
+ #
+ # # equivalent to Time.now.advance(:months => 4, :years => 5)
+ # (4.months + 5.years).from_now
+ #
+ # While these methods provide precise calculation when used as in the examples above, care
+ # should be taken to note that this is not true if the result of `months', `years', etc is
+ # converted before use:
+ #
+ # # equivalent to 30.days.to_i.from_now
+ # 1.month.to_i.from_now
+ #
+ # # equivalent to 365.25.days.to_f.from_now
+ # 1.year.to_f.from_now
+ #
+ # In such cases, Ruby's core
+ # Date[http://stdlib.rubyonrails.org/libdoc/date/rdoc/index.html] and
+ # Time[http://stdlib.rubyonrails.org/libdoc/time/rdoc/index.html] should be used for precision
+ # date and time arithmetic
+ module Time
+ def months
+ ActiveSupport::Duration.new(self * 30.days, [[:months, self]])
+ end
+ alias :month :months
+
+ def years
+ ActiveSupport::Duration.new(self * 365.25.days, [[:years, self]])
+ end
+ alias :year :years
+ end
+ end
+ end
+end