Class: BigDecimal

_original_to_s(format = DEFAULT_STRING_FORMAT) click to toggle source

Alias for: to_s

as_json(options = nil) click to toggle source

A BigDecimal would be naturally represented as a JSON number. Most libraries, however, parse non-integer JSON numbers directly as floats. Clients using those libraries would get in general a wrong number and no way to recover other than manually inspecting the string with the JSON code itself.

That’s why a JSON string is returned. The JSON literal is not numeric, but if the other end knows by contract that the data is supposed to be a BigDecimal, it still has the chance to post-process the string and get the real value.

     # File lib/active_support/json/encoding.rb, line 194
194:   def as_json(options = nil) to_s end

to_formatted_s(format = DEFAULT_STRING_FORMAT) click to toggle source

    # File lib/active_support/core_ext/big_decimal/conversions.rb, line 22
22:   def to_formatted_s(format = DEFAULT_STRING_FORMAT)
23:     _original_to_s(format)
24:   end

Also aliased as: to_s

to_s(format = DEFAULT_STRING_FORMAT) click to toggle source

Also aliased as: _original_to_s

Alias for: to_formatted_s

to_yaml(opts = {}) click to toggle source

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.

    # File lib/active_support/core_ext/big_decimal/conversions.rb, line 14
14:   def to_yaml(opts = {})
15:     YAML.quick_emit(nil, opts) do |out|
16:       string = to_s
17:       out.scalar(YAML_TAG, YAML_MAPPING[string] || string, :plain)
18:     end
19:   end

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