module ActiveSupport #:nodoc: module CoreExtensions #:nodoc: module Numeric #:nodoc: # Enables the use of time calculations and declarations, like 45.minutes + 2.hours + 4.years. # # If you need precise date calculations that doesn't just treat months as 30 days, then have # a look at Time#advance. # # Some of these methods are approximations, 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 seconds self end alias :second :seconds def minutes self * 60 end alias :minute :minutes def hours self * 60.minutes end alias :hour :hours def days self * 24.hours end alias :day :days def weeks self * 7.days end alias :week :weeks def fortnights self * 2.weeks end alias :fortnight :fortnights def months self * 30.days end alias :month :months def years (self * 365.25.days).to_i end alias :year :years # Reads best without arguments: 10.minutes.ago def ago(time = ::Time.now) time - self end # Reads best with argument: 10.minutes.until(time) alias :until :ago # Reads best with argument: 10.minutes.since(time) def since(time = ::Time.now) time + self end # Reads best without arguments: 10.minutes.from_now alias :from_now :since end end end end class Numeric #:nodoc: include ActiveSupport::CoreExtensions::Numeric::Time end