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Class: ActiveSupport::NumberHelper::NumberToRoundedConverter

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, NumberConverter
Instance Chain:
self, NumberConverter
Inherits: ActiveSupport::NumberHelper::NumberConverter
Defined in: activesupport/lib/active_support/number_helper/number_to_rounded_converter.rb

Constant Summary

NumberConverter - Inherited

DEFAULTS, EMPTY_FORMAT

Class Attribute Summary

NumberConverter - Inherited

.namespace, .namespace?, .validate_float, .validate_float?

Class Method Summary

NumberConverter - Inherited

.convert,
.convert_with_resolved_options

Used by a converter delegating to another one: the options it passes already hold every key of the defaults and of the locale's number.format, so only this converter's namespace is resolved again.
.i18n_format_key, .new

Instance Attribute Summary

NumberConverter - Inherited

#namespace, #namespace?, #number, #opts, #validate_float, #validate_float?

Instance Method Summary

NumberConverter - Inherited

#execute, #default_format_options, #default_value, #i18n_format_options, #namespace_format_options,
#options

The format options, in increasing order of precedence: the defaults, the namespace's defaults, the locale's number.format, the locale's number..format, and the options given to the call.
#translate_in_locale, #translate_number_value_with_default, #valid_bigdecimal

Constructor Details

This class inherits a constructor from ActiveSupport::NumberHelper::NumberConverter

Class Method Details

.separator_regexps(separator)

[ GitHub ] 

  


# File 'activesupport/lib/active_support/number_helper/number_to_rounded_converter.rb', line 12



def self.separator_regexps(separator)
  escaped_separator = Regexp.escape(separator)
  [/(#{escaped_separator})(\d*[1-9])?0+\z/, /#{escaped_separator}\z/].freeze
end


  







Instance Method Details



  

    #convert  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/number_helper/number_to_rounded_converter.rb', line 22



def convert
  helper = RoundingHelper.new(options)
  rounded_number = helper.round(number)

  if precision = options[:precision]
    if options[:significant] && precision > 0
      digits = helper.digit_count(rounded_number)
      precision -= digits
      precision = 0 if precision < 0 # don't let it be negative
    end

    formatted_string =
      if rounded_number.finite?
        s = rounded_number.to_s("F")
        a, b = s.split(".", 2)
        if precision != 0
          b << "0" * precision
          a << "."
          a << b[0, precision]
        end
        a
      else
        # Infinity/NaN
        "%f" % rounded_number
      end
  else
    formatted_string = rounded_number
  end

  delimited_number = NumberToDelimitedConverter.convert_with_resolved_options(formatted_string, options)
  format_number(delimited_number)
end


  








  

    #format_number(number)   (private)
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/number_helper/number_to_rounded_converter.rb', line 60



def format_number(number)
  if strip_insignificant_zeros
    insignificant_zeros, trailing_separator =
      COMMON_SEPARATOR_REGEXPS[options[:separator]] || self.class.separator_regexps(options[:separator])
    number.sub(insignificant_zeros, '\1\2').sub(trailing_separator, "")
  else
    number
  end
end


  








  

    #strip_insignificant_zeros   (private)
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/number_helper/number_to_rounded_converter.rb', line 56



def strip_insignificant_zeros
  options[:strip_insignificant_zeros]
end