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module ActiveSupport #:nodoc:
module CoreExtensions #:nodoc:
module Float #:nodoc:
module Rounding
def self.included(base) #:nodoc:
base.send(:alias_method, :round_without_precision, :round)
base.send(:alias_method, :round, :round_with_precision)
end
# Rounds the float with the specified precision.
#
# x = 1.337
# x.round # => 1
# x.round(1) # => 1.3
# x.round(2) # => 1.34
def round_with_precision(precision = nil)
precision.nil? ? round_without_precision : (self * (10 ** precision)).round / (10 ** precision).to_f
end
end
end
end
end
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