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author | Jeremy Kemper <jeremy@bitsweat.net> | 2009-02-28 16:48:14 -0800 |
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committer | Jeremy Kemper <jeremy@bitsweat.net> | 2009-03-21 04:35:15 -0700 |
commit | a4e3aac40a7545285e4d1ccd78adfc41ca3d5f83 (patch) | |
tree | 1cf432cdb6fb06c24faceee1a8554b75daaf5bc5 /activesupport/lib/active_support/core_ext/big_decimal/conversions.rb | |
parent | 6ed42ebdff05f9d28a60e91093d8f9afad03a958 (diff) | |
download | rails-a4e3aac40a7545285e4d1ccd78adfc41ca3d5f83.tar.gz rails-a4e3aac40a7545285e4d1ccd78adfc41ca3d5f83.tar.bz2 rails-a4e3aac40a7545285e4d1ccd78adfc41ca3d5f83.zip |
* Introduce ActiveSupport.core_ext Integer, %w(conversions time etc)
* Convert some extension modules to simply reopening the class
* Remove deprecated Float time extensions
* Fold Base64 extension into ActiveSupport::Base64 since stdlib Base64 is gone
Diffstat (limited to 'activesupport/lib/active_support/core_ext/big_decimal/conversions.rb')
-rw-r--r-- | activesupport/lib/active_support/core_ext/big_decimal/conversions.rb | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/big_decimal/conversions.rb b/activesupport/lib/active_support/core_ext/big_decimal/conversions.rb new file mode 100644 index 0000000000..bc9d578f38 --- /dev/null +++ b/activesupport/lib/active_support/core_ext/big_decimal/conversions.rb @@ -0,0 +1,37 @@ +require 'yaml' + +module ActiveSupport #:nodoc: + module CoreExtensions #:nodoc: + module BigDecimal #:nodoc: + module Conversions + DEFAULT_STRING_FORMAT = 'F'.freeze + YAML_TAG = 'tag:yaml.org,2002:float'.freeze + YAML_MAPPING = { 'Infinity' => '.Inf', '-Infinity' => '-.Inf', 'NaN' => '.NaN' } + + def self.included(base) #:nodoc: + base.class_eval do + alias_method :_original_to_s, :to_s + alias_method :to_s, :to_formatted_s + + yaml_as YAML_TAG + end + end + + def to_formatted_s(format = DEFAULT_STRING_FORMAT) + _original_to_s(format) + end + + # This emits the number without any scientific notation. + # This is better than self.to_f.to_s since it doesn't lose precision. + # + # Note that reconstituting YAML floats to native floats may lose precision. + def to_yaml(opts = {}) + YAML.quick_emit(nil, opts) do |out| + string = to_s + out.scalar(YAML_TAG, YAML_MAPPING[string] || string, :plain) + end + end + end + end + end +end |