diff options
Diffstat (limited to 'activesupport/lib/active_support/number_helper.rb')
-rw-r--r-- | activesupport/lib/active_support/number_helper.rb | 161 |
1 files changed, 135 insertions, 26 deletions
diff --git a/activesupport/lib/active_support/number_helper.rb b/activesupport/lib/active_support/number_helper.rb index 99f6489adb..3849f94a31 100644 --- a/activesupport/lib/active_support/number_helper.rb +++ b/activesupport/lib/active_support/number_helper.rb @@ -7,12 +7,108 @@ 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: "$", + # These five are to override number.format and are optional + separator: ".", + delimiter: ",", + precision: 2, + significant: false, + strip_insignificant_zeros: false + } + }, + + # Used in number_to_percentage + percentage: { + format: { + delimiter: "", + format: "%n%" + } + }, + + # Used in number_to_rounded + precision: { + format: { + delimiter: "" + } + }, + + # Used in number_to_human_size and number_to_human + human: { + format: { + # These five are to override number.format and are optional + delimiter: "", + precision: 3, + significant: true, + strip_insignificant_zeros: true + }, + # Used in number_to_human_size + storage_units: { + # Storage units output formatting. + # %u is the storage unit, %n is the number (default: 2 MB) + format: "%n %u", + units: { + byte: "Bytes", + kb: "KB", + mb: "MB", + gb: "GB", + tb: "TB" + } + }, + # Used in number_to_human + decimal_units: { + format: "%n %u", + # Decimal units output formatting + # By default we will only quantify some of the exponents + # but the commented ones might be defined or overridden + # by the user. + units: { + # femto: Quadrillionth + # pico: Trillionth + # nano: Billionth + # micro: Millionth + # mili: Thousandth + # centi: Hundredth + # deci: Tenth + unit: "", + # ten: + # one: Ten + # other: Tens + # hundred: Hundred + thousand: "Thousand", + million: "Million", + billion: "Billion", + trillion: "Trillion", + quadrillion: "Quadrillion" + } + } + } + } + DECIMAL_UNITS = { 0 => :unit, 1 => :ten, 2 => :hundred, 3 => :thousand, 6 => :million, 9 => :billion, 12 => :trillion, 15 => :quadrillion, -1 => :deci, -2 => :centi, -3 => :mili, -6 => :micro, -9 => :nano, -12 => :pico, -15 => :femto } - DEFAULT_CURRENCY_VALUES = { :format => "%u%n", :negative_format => "-%u%n", :unit => "$", :separator => ".", :delimiter => ",", - :precision => 2, :significant => false, :strip_insignificant_zeros => false } - STORAGE_UNITS = [:byte, :kb, :mb, :gb, :tb] # Formats a +number+ into a US phone number (e.g., (555) @@ -106,10 +202,10 @@ module ActiveSupport return unless number options = options.symbolize_keys - currency = translations_for('currency', options[:locale]) + currency = i18n_format_options(options[:locale], :currency) currency[:negative_format] ||= "-" + currency[:format] if currency[:format] - defaults = DEFAULT_CURRENCY_VALUES.merge(defaults_translations(options[:locale])).merge!(currency) + defaults = default_format_options(:currency).merge!(currency) defaults[:negative_format] = "-" + options[:format] if options[:format] options = defaults.merge!(options) @@ -160,7 +256,7 @@ module ActiveSupport return unless number options = options.symbolize_keys - defaults = format_translations('percentage', options[:locale]) + defaults = format_options(options[:locale], :percentage) options = defaults.merge!(options) format = options[:format] || "%n%" @@ -197,7 +293,7 @@ module ActiveSupport return number unless valid_float?(number) - options = defaults_translations(options[:locale]).merge(options) + options = format_options(options[:locale]).merge!(options) parts = number.to_s.to_str.split('.') parts[0].gsub!(/(\d)(?=(\d\d\d)+(?!\d))/, "\\1#{options[:delimiter]}") @@ -248,7 +344,7 @@ module ActiveSupport number = Float(number) options = options.symbolize_keys - defaults = format_translations('precision', options[:locale]) + defaults = format_options(options[:locale], :precision) options = defaults.merge!(options) precision = options.delete :precision @@ -328,18 +424,18 @@ module ActiveSupport return number unless valid_float?(number) number = Float(number) - defaults = format_translations('human', options[:locale]) + 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 = I18n.translate(:'number.human.storage_units.format', :locale => options[:locale], :raise => true) + 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 = I18n.translate(:'number.human.storage_units.units.byte', :locale => options[:locale], :count => number.to_i, :raise => true) + 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 @@ -348,7 +444,7 @@ module ActiveSupport number /= base ** exponent unit_key = STORAGE_UNITS[exponent] - unit = I18n.translate(:"number.human.storage_units.units.#{unit_key}", :locale => options[:locale], :count => number, :raise => true) + 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) @@ -458,7 +554,7 @@ module ActiveSupport return number unless valid_float?(number) number = Float(number) - defaults = format_translations('human', options[:locale]) + 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 @@ -473,7 +569,7 @@ module ActiveSupport when String, Symbol I18n.translate(:"#{units}", :locale => options[:locale], :raise => true) when nil - I18n.translate(:"number.human.decimal_units.units", :locale => options[:locale], :raise => true) + 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_du[e_name] }.sort_by{|e| -e} @@ -488,34 +584,47 @@ module ActiveSupport when String, Symbol I18n.translate(:"#{units}.#{DECIMAL_UNITS[display_exponent]}", :locale => options[:locale], :count => number.to_i) else - I18n.translate(:"number.human.decimal_units.units.#{DECIMAL_UNITS[display_exponent]}", :locale => options[:locale], :count => number.to_i) + 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] || I18n.translate(:'number.human.decimal_units.format', :locale => options[:locale], :default => "%n %u") + 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) + 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_translations(namespace, locale) #:nodoc: - defaults_translations(locale).merge(translations_for(namespace, locale)) + 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 :format_translations + private_module_and_instance_method :default_format_options - def defaults_translations(locale) #:nodoc: - I18n.translate(:'number.format', :locale => locale, :default => {}) + 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 :defaults_translations + 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] } - def translations_for(namespace, locale) #:nodoc: - I18n.translate(:"number.#{namespace}.format", :locale => locale, :default => {}) + I18n.translate(key, { default: default, scope: :number }.merge!(i18n_options)) end - private_module_and_instance_method :translations_for + private_module_and_instance_method :translate_number_value_with_default def valid_float?(number) #:nodoc: Float(number) |