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Jim Cropcho

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before? and after? - Ruby Time class mixin

The mixin below allows comparison between two Time objects using the more intuitive and natural-sounding before? and after? methods.

Some examples (using Rails' ActiveSupport Time extensions or (preferred) the 'units' gem):

2.minutes.ago.after? Time.now # => false


Time.now.before? 2.hours.from_now # => true


module BeforeAndAfter

  LEFT_SIDE_LATER  = 1
  RIGHT_SIDE_LATER = -1
  
  def before?(input_time)
    (self <=> input_time) == RIGHT_SIDE_LATER
  end
  
  def after?(input_time)
    (self <=> input_time) == LEFT_SIDE_LATER
  end
end

Time.send :include , BeforeAndAfter
to ruby rails time class mixin by JimCropcho on Jan 21, 2008
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