From f0dbd22c4647bf8e37fd9b58ce6652aaca27376e Mon Sep 17 00:00:00 2001 From: Michael Koziarski Date: Sun, 2 Sep 2007 23:54:08 +0000 Subject: Allow Float#round to take a precision argument. Closes #8626 [norbert] git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@7401 5ecf4fe2-1ee6-0310-87b1-e25e094e27de --- .../lib/active_support/core_ext/float/rounding.rb | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 activesupport/lib/active_support/core_ext/float/rounding.rb (limited to 'activesupport/lib/active_support/core_ext/float') diff --git a/activesupport/lib/active_support/core_ext/float/rounding.rb b/activesupport/lib/active_support/core_ext/float/rounding.rb new file mode 100644 index 0000000000..989b1f8f80 --- /dev/null +++ b/activesupport/lib/active_support/core_ext/float/rounding.rb @@ -0,0 +1,22 @@ +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 -- cgit v1.2.3