diff options
Diffstat (limited to 'activesupport/lib/active_support/number_helper.rb')
| -rw-r--r-- | activesupport/lib/active_support/number_helper.rb | 329 |
1 files changed, 20 insertions, 309 deletions
diff --git a/activesupport/lib/active_support/number_helper.rb b/activesupport/lib/active_support/number_helper.rb index e0151baa36..b169e3af01 100644 --- a/activesupport/lib/active_support/number_helper.rb +++ b/activesupport/lib/active_support/number_helper.rb @@ -1,115 +1,19 @@ -require 'active_support/core_ext/big_decimal/conversions' -require 'active_support/core_ext/object/blank' -require 'active_support/core_ext/hash/keys' -require 'active_support/i18n' - module ActiveSupport module NumberHelper - extend self - - DEFAULTS = { - # Used in number_to_delimited - # These are also the defaults for 'currency', 'percentage', 'precision', and 'human' - format: { - # Sets the separator between the units, for more precision (e.g. 1.0 / 2.0 == 0.5) - separator: ".", - # Delimits thousands (e.g. 1,000,000 is a million) (always in groups of three) - delimiter: ",", - # Number of decimals, behind the separator (the number 1 with a precision of 2 gives: 1.00) - precision: 3, - # If set to true, precision will mean the number of significant digits instead - # of the number of decimal digits (1234 with precision 2 becomes 1200, 1.23543 becomes 1.2) - significant: false, - # If set, the zeros after the decimal separator will always be stripped (eg.: 1.200 will be 1.2) - strip_insignificant_zeros: false - }, - - # Used in number_to_currency - currency: { - format: { - format: "%u%n", - negative_format: "-%u%n", - unit: "$", - # These five are to override number.format and are optional - separator: ".", - delimiter: ",", - precision: 2, - significant: false, - strip_insignificant_zeros: false - } - }, - - # Used in number_to_percentage - percentage: { - format: { - delimiter: "", - format: "%n%" - } - }, - - # Used in number_to_rounded - precision: { - format: { - delimiter: "" - } - }, - - # Used in number_to_human_size and number_to_human - human: { - format: { - # These five are to override number.format and are optional - delimiter: "", - precision: 3, - significant: true, - strip_insignificant_zeros: true - }, - # Used in number_to_human_size - storage_units: { - # Storage units output formatting. - # %u is the storage unit, %n is the number (default: 2 MB) - format: "%n %u", - units: { - byte: "Bytes", - kb: "KB", - mb: "MB", - gb: "GB", - tb: "TB" - } - }, - # Used in number_to_human - decimal_units: { - format: "%n %u", - # Decimal units output formatting - # By default we will only quantify some of the exponents - # but the commented ones might be defined or overridden - # by the user. - units: { - # femto: Quadrillionth - # pico: Trillionth - # nano: Billionth - # micro: Millionth - # mili: Thousandth - # centi: Hundredth - # deci: Tenth - unit: "", - # ten: - # one: Ten - # other: Tens - # hundred: Hundred - thousand: "Thousand", - million: "Million", - billion: "Billion", - trillion: "Trillion", - quadrillion: "Quadrillion" - } - } - } - } + extend ActiveSupport::Autoload + + eager_autoload do + autoload :NumberConverter + autoload :NumberToRoundedConverter + autoload :NumberToDelimitedConverter + autoload :NumberToHumanConverter + autoload :NumberToHumanSizeConverter + autoload :NumberToPhoneConverter + autoload :NumberToCurrencyConverter + autoload :NumberToPercentageConverter + end - DECIMAL_UNITS = { 0 => :unit, 1 => :ten, 2 => :hundred, 3 => :thousand, 6 => :million, 9 => :billion, 12 => :trillion, 15 => :quadrillion, - -1 => :deci, -2 => :centi, -3 => :mili, -6 => :micro, -9 => :nano, -12 => :pico, -15 => :femto } - INVERTED_DECIMAL_UNITS = DECIMAL_UNITS.invert - STORAGE_UNITS = [:byte, :kb, :mb, :gb, :tb] + extend self # Formats a +number+ into a US phone number (e.g., (555) # 123-9876). You can customize the format in the +options+ hash. @@ -137,27 +41,7 @@ module ActiveSupport # number_to_phone(1235551234, country_code: 1, extension: 1343, delimiter: '.') # # => +1.123.555.1234 x 1343 def number_to_phone(number, options = {}) - return unless number - options = options.symbolize_keys - - number = number.to_s.strip - area_code = options[:area_code] - delimiter = options[:delimiter] || "-" - extension = options[:extension] - country_code = options[:country_code] - - if area_code - number.gsub!(/(\d{1,3})(\d{3})(\d{4}$)/,"(\\1) \\2#{delimiter}\\3") - else - number.gsub!(/(\d{0,3})(\d{3})(\d{4})$/,"\\1#{delimiter}\\2#{delimiter}\\3") - number.slice!(0, 1) if number.start_with?(delimiter) && !delimiter.blank? - end - - str = '' - str << "+#{country_code}#{delimiter}" unless country_code.blank? - str << number - str << " x #{extension}" unless extension.blank? - str + NumberToPhoneConverter.convert(number, options) end # Formats a +number+ into a currency string (e.g., $13.65). You @@ -199,25 +83,7 @@ module ActiveSupport # number_to_currency(1234567890.50, unit: '£', separator: ',', delimiter: '', format: '%n %u') # # => 1234567890,50 £ def number_to_currency(number, options = {}) - return unless number - options = options.symbolize_keys - - currency = i18n_format_options(options[:locale], :currency) - currency[:negative_format] ||= "-" + currency[:format] if currency[:format] - - defaults = default_format_options(:currency).merge!(currency) - defaults[:negative_format] = "-" + options[:format] if options[:format] - options = defaults.merge!(options) - - unit = options.delete(:unit) - format = options.delete(:format) - - if number.to_f.phase != 0 - format = options.delete(:negative_format) - number = number.respond_to?("abs") ? number.abs : number.sub(/^-/, '') - end - - format.gsub('%n', self.number_to_rounded(number, options)).gsub('%u', unit) + NumberToCurrencyConverter.convert(number, options) end # Formats a +number+ as a percentage string (e.g., 65%). You can @@ -253,14 +119,7 @@ module ActiveSupport # number_to_percentage('98a') # => 98a% # number_to_percentage(100, format: '%n %') # => 100 % def number_to_percentage(number, options = {}) - return unless number - options = options.symbolize_keys - - defaults = format_options(options[:locale], :percentage) - options = defaults.merge!(options) - - format = options[:format] || "%n%" - format.gsub('%n', self.number_to_rounded(number, options)) + NumberToPercentageConverter.convert(number, options) end # Formats a +number+ with grouped thousands using +delimiter+ @@ -289,15 +148,7 @@ module ActiveSupport # number_to_delimited(98765432.98, delimiter: ' ', separator: ',') # # => 98 765 432,98 def number_to_delimited(number, options = {}) - options = options.symbolize_keys - - return number unless valid_float?(number) - - options = format_options(options[:locale]).merge!(options) - - parts = number.to_s.split('.') - parts[0].gsub!(/(\d)(?=(\d\d\d)+(?!\d))/, "\\1#{options[:delimiter]}") - parts.join(options[:separator]) + NumberToDelimitedConverter.convert(number, options) end # Formats a +number+ with the specified level of @@ -340,39 +191,7 @@ module ActiveSupport # number_to_rounded(1111.2345, precision: 2, separator: ',', delimiter: '.') # # => 1.111,23 def number_to_rounded(number, options = {}) - return number unless valid_float?(number) - number = Float(number) - options = options.symbolize_keys - - defaults = format_options(options[:locale], :precision) - options = defaults.merge!(options) - - precision = options.delete :precision - significant = options.delete :significant - strip_insignificant_zeros = options.delete :strip_insignificant_zeros - - if significant && precision > 0 - if number == 0 - digits, rounded_number = 1, 0 - else - digits = (Math.log10(number.abs) + 1).floor - multiplier = 10 ** (digits - precision) - rounded_number = (BigDecimal.new(number.to_s) / BigDecimal.new(multiplier.to_f.to_s)).round.to_f * multiplier - digits = (Math.log10(rounded_number.abs) + 1).floor # After rounding, the number of digits may have changed - end - precision -= digits - precision = 0 if precision < 0 # don't let it be negative - else - rounded_number = BigDecimal.new(number.to_s).round(precision).to_f - rounded_number = rounded_number.abs if rounded_number.zero? # prevent showing negative zeros - end - formatted_number = self.number_to_delimited("%01.#{precision}f" % rounded_number, options) - if strip_insignificant_zeros - escaped_separator = Regexp.escape(options[:separator]) - formatted_number.sub(/(#{escaped_separator})(\d*[1-9])?0+\z/, '\1\2').sub(/#{escaped_separator}\z/, '') - else - formatted_number - end + NumberToRoundedConverter.convert(number, options) end # Formats the bytes in +number+ into a more understandable @@ -420,36 +239,7 @@ module ActiveSupport # number_to_human_size(1234567890123, precision: 5) # => "1.1229 TB" # number_to_human_size(524288000, precision: 5) # => "500 MB" def number_to_human_size(number, options = {}) - options = options.symbolize_keys - - return number unless valid_float?(number) - number = Float(number) - - defaults = format_options(options[:locale], :human) - options = defaults.merge!(options) - - #for backwards compatibility with those that didn't add strip_insignificant_zeros to their locale files - options[:strip_insignificant_zeros] = true if not options.key?(:strip_insignificant_zeros) - - storage_units_format = translate_number_value_with_default('human.storage_units.format', :locale => options[:locale], :raise => true) - - base = options[:prefix] == :si ? 1000 : 1024 - - if number.to_i < base - unit = translate_number_value_with_default('human.storage_units.units.byte', :locale => options[:locale], :count => number.to_i, :raise => true) - storage_units_format.gsub(/%n/, number.to_i.to_s).gsub(/%u/, unit) - else - max_exp = STORAGE_UNITS.size - 1 - exponent = (Math.log(number) / Math.log(base)).to_i # Convert to base - exponent = max_exp if exponent > max_exp # we need this to avoid overflow for the highest unit - number /= base ** exponent - - unit_key = STORAGE_UNITS[exponent] - unit = translate_number_value_with_default("human.storage_units.units.#{unit_key}", :locale => options[:locale], :count => number, :raise => true) - - formatted_number = self.number_to_rounded(number, options) - storage_units_format.gsub(/%n/, formatted_number).gsub(/%u/, unit) - end + NumberToHumanSizeConverter.convert(number, options) end # Pretty prints (formats and approximates) a number in a way it @@ -550,86 +340,7 @@ module ActiveSupport # number_to_human(1, units: :distance) # => "1 meter" # number_to_human(0.34, units: :distance) # => "34 centimeters" def number_to_human(number, options = {}) - options = options.symbolize_keys - - return number unless valid_float?(number) - number = Float(number) - - defaults = format_options(options[:locale], :human) - options = defaults.merge!(options) - - #for backwards compatibility with those that didn't add strip_insignificant_zeros to their locale files - options[:strip_insignificant_zeros] = true if not options.key?(:strip_insignificant_zeros) - - units = options.delete :units - unit_exponents = case units - when Hash - units - when String, Symbol - I18n.translate(:"#{units}", :locale => options[:locale], :raise => true) - when nil - translate_number_value_with_default("human.decimal_units.units", :locale => options[:locale], :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!{|e| -e} - - number_exponent = number != 0 ? Math.log10(number.abs).floor : 0 - display_exponent = unit_exponents.find{ |e| number_exponent >= e } || 0 - number /= 10 ** display_exponent - - unit = case units - when Hash - units[DECIMAL_UNITS[display_exponent]] || '' - when String, Symbol - I18n.translate(:"#{units}.#{DECIMAL_UNITS[display_exponent]}", :locale => options[:locale], :count => number.to_i) - else - translate_number_value_with_default("human.decimal_units.units.#{DECIMAL_UNITS[display_exponent]}", :locale => options[:locale], :count => number.to_i) - end - - decimal_format = options[:format] || translate_number_value_with_default('human.decimal_units.format', :locale => options[:locale]) - formatted_number = self.number_to_rounded(number, options) - decimal_format.gsub(/%n/, formatted_number).gsub(/%u/, unit).strip - end - - def self.private_module_and_instance_method(method_name) #:nodoc: - private method_name - private_class_method method_name - end - private_class_method :private_module_and_instance_method - - def format_options(locale, namespace = nil) #:nodoc: - default_format_options(namespace).merge!(i18n_format_options(locale, namespace)) - end - private_module_and_instance_method :format_options - - def default_format_options(namespace = nil) #:nodoc: - options = DEFAULTS[:format].dup - options.merge!(DEFAULTS[namespace][:format]) if namespace - options - end - private_module_and_instance_method :default_format_options - - def i18n_format_options(locale, namespace = nil) #:nodoc: - options = I18n.translate(:'number.format', locale: locale, default: {}).dup - if namespace - options.merge!(I18n.translate(:"number.#{namespace}.format", locale: locale, default: {})) - end - options - end - private_module_and_instance_method :i18n_format_options - - def translate_number_value_with_default(key, i18n_options = {}) #:nodoc: - default = key.split('.').reduce(DEFAULTS) { |defaults, k| defaults[k.to_sym] } - - I18n.translate(key, { default: default, scope: :number }.merge!(i18n_options)) - end - private_module_and_instance_method :translate_number_value_with_default - - def valid_float?(number) #:nodoc: - Float(number) - rescue ArgumentError, TypeError - false + NumberToHumanConverter.convert(number, options) end - private_module_and_instance_method :valid_float? end end |