diff options
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 | 27 |
1 files changed, 27 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..f7f03f4d95 --- /dev/null +++ b/activesupport/lib/active_support/core_ext/big_decimal/conversions.rb @@ -0,0 +1,27 @@ +require 'bigdecimal' +require 'yaml' + +class BigDecimal + YAML_TAG = 'tag:yaml.org,2002:float' + YAML_MAPPING = { 'Infinity' => '.Inf', '-Infinity' => '-.Inf', 'NaN' => '.NaN' } + + yaml_as YAML_TAG + + # 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 + + DEFAULT_STRING_FORMAT = 'F' + def to_formatted_s(format = DEFAULT_STRING_FORMAT) + _original_to_s(format) + end + alias_method :_original_to_s, :to_s + alias_method :to_s, :to_formatted_s +end |