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Class: ActiveSupport::NumberHelper::NumberToHumanConverter

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_human_converter.rb

Constant Summary

NumberConverter - Inherited

DEFAULTS

Class Attribute Summary

NumberConverter - Inherited

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

Class Method Summary

NumberConverter - Inherited

.convert, .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, #format_options, #i18n_format_options, #options, #translate_in_locale, #translate_number_value_with_default, #valid_bigdecimal

Constructor Details

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

Instance Method Details

#calculate_exponent(units) (private)

[ GitHub ] 

  


# File 'activesupport/lib/active_support/number_helper/number_to_human_converter.rb', line 50



def calculate_exponent(units)
  exponent = number != 0 ? Math.log10(number.abs).floor : 0
  unit_exponents(units).find { |e| exponent >= e } || 0
end


  








  

    #convert  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/number_helper/number_to_human_converter.rb', line 15



def convert # :nodoc:
  @number = RoundingHelper.new(options).round(number)
  @number = Float(number)

  # For backwards compatibility with those that didn't add strip_insignificant_zeros to their locale files.
  unless options.key?(:strip_insignificant_zeros)
    options[:strip_insignificant_zeros] = true
  end

  units = opts[:units]
  exponent = calculate_exponent(units)
  @number = number / (10**exponent)

  rounded_number = NumberToRoundedConverter.convert(number, options)
  unit = determine_unit(units, exponent)
  format.gsub("%n", rounded_number).gsub("%u", unit).strip
end


  








  

    #determine_unit(units, exponent)   (private)
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/number_helper/number_to_human_converter.rb', line 38



def determine_unit(units, exponent)
  exp = DECIMAL_UNITS[exponent]
  case units
  when Hash
    units[exp] || ""
  when String, Symbol
    I18n.translate("#{units}.#{exp}", locale: options[:locale], count: number.to_i)
  else
    translate_in_locale("human.decimal_units.units.#{exp}", count: number.to_i)
  end
end


  








  

    #format   (private)
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/number_helper/number_to_human_converter.rb', line 34



def format
  options[:format] || translate_in_locale("human.decimal_units.format")
end


  








  

    #unit_exponents(units)   (private)
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/number_helper/number_to_human_converter.rb', line 55



def unit_exponents(units)
  case units
  when Hash
    units
  when String, Symbol
    I18n.translate(units.to_s, locale: options[:locale], raise: true)
  when nil
    translate_in_locale("human.decimal_units.units", raise: true)
  else
    raise ArgumentError, ":units must be a Hash or String translation scope."
  end.keys.map { |e_name| INVERTED_DECIMAL_UNITS[e_name] }.sort_by(&:-@)
end