diff options
Diffstat (limited to 'actionpack/lib/action_view/helpers/number_helper.rb')
| -rw-r--r-- | actionpack/lib/action_view/helpers/number_helper.rb | 413 |
1 files changed, 248 insertions, 165 deletions
diff --git a/actionpack/lib/action_view/helpers/number_helper.rb b/actionpack/lib/action_view/helpers/number_helper.rb index 7031694af4..dfc26acfad 100644 --- a/actionpack/lib/action_view/helpers/number_helper.rb +++ b/actionpack/lib/action_view/helpers/number_helper.rb @@ -1,7 +1,6 @@ # encoding: utf-8 require 'active_support/core_ext/big_decimal/conversions' -require 'active_support/core_ext/float/rounding' require 'active_support/core_ext/object/blank' require 'active_support/core_ext/string/output_safety' @@ -29,37 +28,43 @@ module ActionView end end - # Formats a +number+ into a US phone number (e.g., (555) 123-9876). You can customize the format - # in the +options+ hash. + # Formats a +number+ into a US phone number (e.g., (555) + # 123-9876). You can customize the format in the +options+ hash. # # ==== Options - # * <tt>:area_code</tt> - Adds parentheses around the area code. - # * <tt>:delimiter</tt> - Specifies the delimiter to use (defaults to "-"). - # * <tt>:extension</tt> - Specifies an extension to add to the end of the - # generated number. - # * <tt>:country_code</tt> - Sets the country code for the phone number. + # + # * <tt>:area_code</tt> - Adds parentheses around the area code. + # * <tt>:delimiter</tt> - Specifies the delimiter to use + # (defaults to "-"). + # * <tt>:extension</tt> - Specifies an extension to add to the + # end of the generated number. + # * <tt>:country_code</tt> - Sets the country code for the phone + # number. + # * <tt>:raise</tt> - If true, raises +InvalidNumberError+ when + # the argument is invalid. # # ==== Examples + # # number_to_phone(5551234) # => 555-1234 + # number_to_phone("5551234") # => 555-1234 # number_to_phone(1235551234) # => 123-555-1234 # number_to_phone(1235551234, :area_code => true) # => (123) 555-1234 # number_to_phone(1235551234, :delimiter => " ") # => 123 555 1234 # number_to_phone(1235551234, :area_code => true, :extension => 555) # => (123) 555-1234 x 555 # number_to_phone(1235551234, :country_code => 1) # => +1-123-555-1234 + # number_to_phone("123a456") # => 123a456 + # + # number_to_phone("1234a567", :raise => true) # => InvalidNumberError # # number_to_phone(1235551234, :country_code => 1, :extension => 1343, :delimiter => ".") - # => +1.123.555.1234 x 1343 + # # => +1.123.555.1234 x 1343 def number_to_phone(number, options = {}) return unless number + options = options.symbolize_keys - begin - Float(number) - rescue ArgumentError, TypeError - raise InvalidNumberError, number - end if options[:raise] + parse_float(number, true) if options[:raise] number = number.to_s.strip - options = options.symbolize_keys area_code = options[:area_code] delimiter = options[:delimiter] || "-" extension = options[:extension] @@ -69,54 +74,66 @@ module ActionView 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.starts_with?(delimiter) && !delimiter.blank? + number.slice!(0, 1) if number.start_with?(delimiter) && !delimiter.blank? end - str = [] + str = '' str << "+#{country_code}#{delimiter}" unless country_code.blank? str << number str << " x #{extension}" unless extension.blank? - ERB::Util.html_escape(str.join) + ERB::Util.html_escape(str) end - # Formats a +number+ into a currency string (e.g., $13.65). You can customize the format - # in the +options+ hash. + # Formats a +number+ into a currency string (e.g., $13.65). You + # can customize the format in the +options+ hash. # # ==== Options - # * <tt>:locale</tt> - Sets the locale to be used for formatting (defaults to current locale). - # * <tt>:precision</tt> - Sets the level of precision (defaults to 2). - # * <tt>:unit</tt> - Sets the denomination of the currency (defaults to "$"). - # * <tt>:separator</tt> - Sets the separator between the units (defaults to "."). - # * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults to ","). - # * <tt>:format</tt> - Sets the format for non-negative numbers (defaults to "%u%n"). - # Fields are <tt>%u</tt> for the currency, and <tt>%n</tt> - # for the number. - # * <tt>:negative_format</tt> - Sets the format for negative numbers (defaults to prepending - # an hyphen to the formatted number given by <tt>:format</tt>). - # Accepts the same fields than <tt>:format</tt>, except - # <tt>%n</tt> is here the absolute value of the number. + # + # * <tt>:locale</tt> - Sets the locale to be used for formatting + # (defaults to current locale). + # * <tt>:precision</tt> - Sets the level of precision (defaults + # to 2). + # * <tt>:unit</tt> - Sets the denomination of the currency + # (defaults to "$"). + # * <tt>:separator</tt> - Sets the separator between the units + # (defaults to "."). + # * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults + # to ","). + # * <tt>:format</tt> - Sets the format for non-negative numbers + # (defaults to "%u%n"). Fields are <tt>%u</tt> for the + # currency, and <tt>%n</tt> for the number. + # * <tt>:negative_format</tt> - Sets the format for negative + # numbers (defaults to prepending an hyphen to the formatted + # number given by <tt>:format</tt>). Accepts the same fields + # than <tt>:format</tt>, except <tt>%n</tt> is here the + # absolute value of the number. + # * <tt>:raise</tt> - If true, raises +InvalidNumberError+ when + # the argument is invalid. # # ==== Examples + # # number_to_currency(1234567890.50) # => $1,234,567,890.50 # number_to_currency(1234567890.506) # => $1,234,567,890.51 # number_to_currency(1234567890.506, :precision => 3) # => $1,234,567,890.506 - # number_to_currency(1234567890.506, :locale => :fr) # => 1 234 567 890,506 € + # number_to_currency(1234567890.506, :locale => :fr) # => 1 234 567 890,51 € + # number_to_currency("123a456") # => $123a456 + # + # number_to_currency("123a456", :raise => true) # => InvalidNumberError # # number_to_currency(-1234567890.50, :negative_format => "(%u%n)") - # # => ($1,234,567,890.51) + # # => ($1,234,567,890.50) # number_to_currency(1234567890.50, :unit => "£", :separator => ",", :delimiter => "") # # => £1234567890,50 # 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 - options.symbolize_keys! - - defaults = I18n.translate(:'number.format', :locale => options[:locale], :default => {}) - currency = I18n.translate(:'number.currency.format', :locale => options[:locale], :default => {}) + currency = translations_for('currency', options[:locale]) + currency[:negative_format] ||= "-" + currency[:format] if currency[:format] - defaults = DEFAULT_CURRENCY_VALUES.merge(defaults).merge!(currency) + defaults = DEFAULT_CURRENCY_VALUES.merge(defaults_translations(options[:locale])).merge!(currency) defaults[:negative_format] = "-" + options[:format] if options[:format] options = defaults.merge!(options) @@ -130,108 +147,142 @@ module ActionView begin value = number_with_precision(number, options.merge(:raise => true)) - format.gsub(/%n/, value).gsub(/%u/, unit).html_safe + format.gsub('%n', value).gsub('%u', unit).html_safe rescue InvalidNumberError => e if options[:raise] raise else - formatted_number = format.gsub(/%n/, e.number).gsub(/%u/, unit) + formatted_number = format.gsub('%n', e.number).gsub('%u', unit) e.number.to_s.html_safe? ? formatted_number.html_safe : formatted_number end end - end - # Formats a +number+ as a percentage string (e.g., 65%). You can customize the - # format in the +options+ hash. + # Formats a +number+ as a percentage string (e.g., 65%). You can + # customize the format in the +options+ hash. # # ==== Options - # * <tt>:locale</tt> - Sets the locale to be used for formatting (defaults to current locale). - # * <tt>:precision</tt> - Sets the precision of the number (defaults to 3). - # * <tt>:significant</tt> - If +true+, precision will be the # of significant_digits. If +false+, the # of fractional digits (defaults to +false+) - # * <tt>:separator</tt> - Sets the separator between the fractional and integer digits (defaults to "."). - # * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults to ""). - # * <tt>:strip_insignificant_zeros</tt> - If +true+ removes insignificant zeros after the decimal separator (defaults to +false+) + # + # * <tt>:locale</tt> - Sets the locale to be used for formatting + # (defaults to current locale). + # * <tt>:precision</tt> - Sets the precision of the number + # (defaults to 3). + # * <tt>:significant</tt> - If +true+, precision will be the # + # of significant_digits. If +false+, the # of fractional + # digits (defaults to +false+). + # * <tt>:separator</tt> - Sets the separator between the + # fractional and integer digits (defaults to "."). + # * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults + # to ""). + # * <tt>:strip_insignificant_zeros</tt> - If +true+ removes + # insignificant zeros after the decimal separator (defaults to + # +false+). + # * <tt>:format</tt> - Specifies the format of the percentage + # string The number field is <tt>%n</tt> (defaults to "%n%"). + # * <tt>:raise</tt> - If true, raises +InvalidNumberError+ when + # the argument is invalid. # # ==== Examples + # # number_to_percentage(100) # => 100.000% + # number_to_percentage("98") # => 98.000% # number_to_percentage(100, :precision => 0) # => 100% # number_to_percentage(1000, :delimiter => '.', :separator => ',') # => 1.000,000% # number_to_percentage(302.24398923423, :precision => 5) # => 302.24399% # number_to_percentage(1000, :locale => :fr) # => 1 000,000% + # number_to_percentage("98a") # => 98a% + # number_to_percentage(100, :format => "%n %") # => 100 % + # + # number_to_percentage("98a", :raise => true) # => InvalidNumberError def number_to_percentage(number, options = {}) return unless number + options = options.symbolize_keys - options.symbolize_keys! - - defaults = I18n.translate(:'number.format', :locale => options[:locale], :default => {}) - percentage = I18n.translate(:'number.percentage.format', :locale => options[:locale], :default => {}) - defaults = defaults.merge(percentage) + defaults = format_translations('percentage', options[:locale]) + options = defaults.merge!(options) - options = options.reverse_merge(defaults) + format = options[:format] || "%n%" begin - "#{number_with_precision(number, options.merge(:raise => true))}%".html_safe + value = number_with_precision(number, options.merge(:raise => true)) + format.gsub(/%n/, value).html_safe rescue InvalidNumberError => e if options[:raise] raise else - e.number.to_s.html_safe? ? "#{e.number}%".html_safe : "#{e.number}%" + formatted_number = format.gsub(/%n/, e.number) + e.number.to_s.html_safe? ? formatted_number.html_safe : formatted_number end end end - # Formats a +number+ with grouped thousands using +delimiter+ (e.g., 12,324). You can - # customize the format in the +options+ hash. + # Formats a +number+ with grouped thousands using +delimiter+ + # (e.g., 12,324). You can customize the format in the +options+ + # hash. # # ==== Options - # * <tt>:locale</tt> - Sets the locale to be used for formatting (defaults to current locale). - # * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults to ","). - # * <tt>:separator</tt> - Sets the separator between the fractional and integer digits (defaults to "."). + # + # * <tt>:locale</tt> - Sets the locale to be used for formatting + # (defaults to current locale). + # * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults + # to ","). + # * <tt>:separator</tt> - Sets the separator between the + # fractional and integer digits (defaults to "."). + # * <tt>:raise</tt> - If true, raises +InvalidNumberError+ when + # the argument is invalid. # # ==== Examples + # # number_with_delimiter(12345678) # => 12,345,678 + # number_with_delimiter("123456") # => 123,456 # number_with_delimiter(12345678.05) # => 12,345,678.05 # number_with_delimiter(12345678, :delimiter => ".") # => 12.345.678 - # number_with_delimiter(12345678, :separator => ",") # => 12,345,678 + # number_with_delimiter(12345678, :delimiter => ",") # => 12,345,678 + # number_with_delimiter(12345678.05, :separator => " ") # => 12,345,678 05 # number_with_delimiter(12345678.05, :locale => :fr) # => 12 345 678,05 + # number_with_delimiter("112a") # => 112a # number_with_delimiter(98765432.98, :delimiter => " ", :separator => ",") # # => 98 765 432,98 + # + # number_with_delimiter("112a", :raise => true) # => raise InvalidNumberError def number_with_delimiter(number, options = {}) - options.symbolize_keys! + options = options.symbolize_keys - begin - Float(number) - rescue ArgumentError, TypeError - if options[:raise] - raise InvalidNumberError, number - else - return number - end - end + parse_float(number, options[:raise]) or return number - defaults = I18n.translate(:'number.format', :locale => options[:locale], :default => {}) - options = options.reverse_merge(defaults) + options = defaults_translations(options[:locale]).merge(options) parts = number.to_s.to_str.split('.') parts[0].gsub!(/(\d)(?=(\d\d\d)+(?!\d))/, "\\1#{options[:delimiter]}") - parts.join(options[:separator]).html_safe - + safe_join(parts, options[:separator]) end - # Formats a +number+ with the specified level of <tt>:precision</tt> (e.g., 112.32 has a precision - # of 2 if +:significant+ is +false+, and 5 if +:significant+ is +true+). + # Formats a +number+ with the specified level of + # <tt>:precision</tt> (e.g., 112.32 has a precision of 2 if + # +:significant+ is +false+, and 5 if +:significant+ is +true+). # You can customize the format in the +options+ hash. # # ==== Options - # * <tt>:locale</tt> - Sets the locale to be used for formatting (defaults to current locale). - # * <tt>:precision</tt> - Sets the precision of the number (defaults to 3). - # * <tt>:significant</tt> - If +true+, precision will be the # of significant_digits. If +false+, the # of fractional digits (defaults to +false+) - # * <tt>:separator</tt> - Sets the separator between the fractional and integer digits (defaults to "."). - # * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults to ""). - # * <tt>:strip_insignificant_zeros</tt> - If +true+ removes insignificant zeros after the decimal separator (defaults to +false+) + # + # * <tt>:locale</tt> - Sets the locale to be used for formatting + # (defaults to current locale). + # * <tt>:precision</tt> - Sets the precision of the number + # (defaults to 3). + # * <tt>:significant</tt> - If +true+, precision will be the # + # of significant_digits. If +false+, the # of fractional + # digits (defaults to +false+). + # * <tt>:separator</tt> - Sets the separator between the + # fractional and integer digits (defaults to "."). + # * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults + # to ""). + # * <tt>:strip_insignificant_zeros</tt> - If +true+ removes + # insignificant zeros after the decimal separator (defaults to + # +false+). + # * <tt>:raise</tt> - If true, raises +InvalidNumberError+ when + # the argument is invalid. # # ==== Examples + # # number_with_precision(111.2345) # => 111.235 # number_with_precision(111.2345, :precision => 2) # => 111.23 # number_with_precision(13, :precision => 5) # => 13.00000 @@ -240,29 +291,21 @@ module ActionView # number_with_precision(111.2345, :precision => 1, :significant => true) # => 100 # number_with_precision(13, :precision => 5, :significant => true) # => 13.000 # number_with_precision(111.234, :locale => :fr) # => 111,234 + # # number_with_precision(13, :precision => 5, :significant => true, :strip_insignificant_zeros => true) # # => 13 + # # number_with_precision(389.32314, :precision => 4, :significant => true) # => 389.3 # number_with_precision(1111.2345, :precision => 2, :separator => ',', :delimiter => '.') # # => 1.111,23 def number_with_precision(number, options = {}) - options.symbolize_keys! + options = options.symbolize_keys - number = begin - Float(number) - rescue ArgumentError, TypeError - if options[:raise] - raise InvalidNumberError, number - else - return number - end - end + number = (parse_float(number, options[:raise]) or return number) - defaults = I18n.translate(:'number.format', :locale => options[:locale], :default => {}) - precision_defaults = I18n.translate(:'number.precision.format', :locale => options[:locale], :default => {}) - defaults = defaults.merge(precision_defaults) + defaults = format_translations('precision', options[:locale]) + options = defaults.merge!(options) - options = options.reverse_merge(defaults) # Allow the user to unset default values: Eg.: :significant => false precision = options.delete :precision significant = options.delete :significant strip_insignificant_zeros = options.delete :strip_insignificant_zeros @@ -279,6 +322,7 @@ module ActionView precision = precision > 0 ? precision : 0 #don't let it be negative else rounded_number = BigDecimal.new(number.to_s).round(precision).to_f + rounded_number = rounded_number.zero? ? rounded_number.abs : rounded_number #prevent showing negative zeros end formatted_number = number_with_delimiter("%01.#{precision}f" % rounded_number, options) if strip_insignificant_zeros @@ -287,27 +331,41 @@ module ActionView else formatted_number end - end STORAGE_UNITS = [:byte, :kb, :mb, :gb, :tb].freeze - # Formats the bytes in +number+ into a more understandable representation - # (e.g., giving it 1500 yields 1.5 KB). This method is useful for - # reporting file sizes to users. You can customize the - # format in the +options+ hash. + # Formats the bytes in +number+ into a more understandable + # representation (e.g., giving it 1500 yields 1.5 KB). This + # method is useful for reporting file sizes to users. You can + # customize the format in the +options+ hash. # - # See <tt>number_to_human</tt> if you want to pretty-print a generic number. + # See <tt>number_to_human</tt> if you want to pretty-print a + # generic number. # # ==== Options - # * <tt>:locale</tt> - Sets the locale to be used for formatting (defaults to current locale). - # * <tt>:precision</tt> - Sets the precision of the number (defaults to 3). - # * <tt>:significant</tt> - If +true+, precision will be the # of significant_digits. If +false+, the # of fractional digits (defaults to +true+) - # * <tt>:separator</tt> - Sets the separator between the fractional and integer digits (defaults to "."). - # * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults to ""). - # * <tt>:strip_insignificant_zeros</tt> - If +true+ removes insignificant zeros after the decimal separator (defaults to +true+) - # * <tt>:prefix</tt> - If +:si+ formats the number using the SI prefix (defaults to :binary) + # + # * <tt>:locale</tt> - Sets the locale to be used for formatting + # (defaults to current locale). + # * <tt>:precision</tt> - Sets the precision of the number + # (defaults to 3). + # * <tt>:significant</tt> - If +true+, precision will be the # + # of significant_digits. If +false+, the # of fractional + # digits (defaults to +true+) + # * <tt>:separator</tt> - Sets the separator between the + # fractional and integer digits (defaults to "."). + # * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults + # to ""). + # * <tt>:strip_insignificant_zeros</tt> - If +true+ removes + # insignificant zeros after the decimal separator (defaults to + # +true+) + # * <tt>:prefix</tt> - If +:si+ formats the number using the SI + # prefix (defaults to :binary) + # * <tt>:raise</tt> - If true, raises +InvalidNumberError+ when + # the argument is invalid. + # # ==== Examples + # # number_to_human_size(123) # => 123 Bytes # number_to_human_size(1234) # => 1.21 KB # number_to_human_size(12345) # => 12.1 KB @@ -318,28 +376,20 @@ module ActionView # number_to_human_size(483989, :precision => 2) # => 470 KB # number_to_human_size(1234567, :precision => 2, :separator => ',') # => 1,2 MB # - # Non-significant zeros after the fractional separator are stripped out by default (set - # <tt>:strip_insignificant_zeros</tt> to +false+ to change that): + # Non-significant zeros after the fractional separator are + # stripped out by default (set + # <tt>:strip_insignificant_zeros</tt> to +false+ to change + # that): # 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.symbolize_keys! + options = options.symbolize_keys - number = begin - Float(number) - rescue ArgumentError, TypeError - if options[:raise] - raise InvalidNumberError, number - else - return number - end - end + number = (parse_float(number, options[:raise]) or return number) - defaults = I18n.translate(:'number.format', :locale => options[:locale], :default => {}) - human = I18n.translate(:'number.human.format', :locale => options[:locale], :default => {}) - defaults = defaults.merge(human) + defaults = format_translations('human', options[:locale]) + options = defaults.merge!(options) - options = options.reverse_merge(defaults) #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) @@ -367,32 +417,55 @@ module ActionView 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}.freeze - # Pretty prints (formats and approximates) a number in a way it is more readable by humans - # (eg.: 1200000000 becomes "1.2 Billion"). This is useful for numbers that - # can get very large (and too hard to read). + # Pretty prints (formats and approximates) a number in a way it + # is more readable by humans (eg.: 1200000000 becomes "1.2 + # Billion"). This is useful for numbers that can get very large + # (and too hard to read). # - # See <tt>number_to_human_size</tt> if you want to print a file size. + # See <tt>number_to_human_size</tt> if you want to print a file + # size. # - # You can also define you own unit-quantifier names if you want to use other decimal units - # (eg.: 1500 becomes "1.5 kilometers", 0.150 becomes "150 milliliters", etc). You may define - # a wide range of unit quantifiers, even fractional ones (centi, deci, mili, etc). + # You can also define you own unit-quantifier names if you want + # to use other decimal units (eg.: 1500 becomes "1.5 + # kilometers", 0.150 becomes "150 milliliters", etc). You may + # define a wide range of unit quantifiers, even fractional ones + # (centi, deci, mili, etc). # # ==== Options - # * <tt>:locale</tt> - Sets the locale to be used for formatting (defaults to current locale). - # * <tt>:precision</tt> - Sets the precision of the number (defaults to 3). - # * <tt>:significant</tt> - If +true+, precision will be the # of significant_digits. If +false+, the # of fractional digits (defaults to +true+) - # * <tt>:separator</tt> - Sets the separator between the fractional and integer digits (defaults to "."). - # * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults to ""). - # * <tt>:strip_insignificant_zeros</tt> - If +true+ removes insignificant zeros after the decimal separator (defaults to +true+) - # * <tt>:units</tt> - A Hash of unit quantifier names. Or a string containing an i18n scope where to find this hash. It might have the following keys: - # * *integers*: <tt>:unit</tt>, <tt>:ten</tt>, <tt>:hundred</tt>, <tt>:thousand</tt>, <tt>:million</tt>, <tt>:billion</tt>, <tt>:trillion</tt>, <tt>:quadrillion</tt> - # * *fractionals*: <tt>:deci</tt>, <tt>:centi</tt>, <tt>:mili</tt>, <tt>:micro</tt>, <tt>:nano</tt>, <tt>:pico</tt>, <tt>:femto</tt> - # * <tt>:format</tt> - Sets the format of the output string (defaults to "%n %u"). The field types are: - # - # %u The quantifier (ex.: 'thousand') - # %n The number + # + # * <tt>:locale</tt> - Sets the locale to be used for formatting + # (defaults to current locale). + # * <tt>:precision</tt> - Sets the precision of the number + # (defaults to 3). + # * <tt>:significant</tt> - If +true+, precision will be the # + # of significant_digits. If +false+, the # of fractional + # digits (defaults to +true+) + # * <tt>:separator</tt> - Sets the separator between the + # fractional and integer digits (defaults to "."). + # * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults + # to ""). + # * <tt>:strip_insignificant_zeros</tt> - If +true+ removes + # insignificant zeros after the decimal separator (defaults to + # +true+) + # * <tt>:units</tt> - A Hash of unit quantifier names. Or a + # string containing an i18n scope where to find this hash. It + # might have the following keys: + # * *integers*: <tt>:unit</tt>, <tt>:ten</tt>, + # *<tt>:hundred</tt>, <tt>:thousand</tt>, <tt>:million</tt>, + # *<tt>:billion</tt>, <tt>:trillion</tt>, + # *<tt>:quadrillion</tt> + # * *fractionals*: <tt>:deci</tt>, <tt>:centi</tt>, + # *<tt>:mili</tt>, <tt>:micro</tt>, <tt>:nano</tt>, + # *<tt>:pico</tt>, <tt>:femto</tt> + # * <tt>:format</tt> - Sets the format of the output string + # (defaults to "%n %u"). The field types are: + # * %u - The quantifier (ex.: 'thousand') + # * %n - The number + # * <tt>:raise</tt> - If true, raises +InvalidNumberError+ when + # the argument is invalid. # # ==== Examples + # # number_to_human(123) # => "123" # number_to_human(1234) # => "1.23 Thousand" # number_to_human(12345) # => "12.3 Thousand" @@ -409,8 +482,9 @@ module ActionView # :separator => ',', # :significant => false) # => "1,2 Million" # - # Unsignificant zeros after the decimal separator are stripped out by default (set - # <tt>:strip_insignificant_zeros</tt> to +false+ to change that): + # Non-significant zeros after the decimal separator are stripped + # out by default (set <tt>:strip_insignificant_zeros</tt> to + # +false+ to change that): # number_to_human(12345012345, :significant_digits => 6) # => "12.345 Billion" # number_to_human(500000000, :precision => 5) # => "500 Million" # @@ -442,23 +516,13 @@ module ActionView # number_to_human(0.34, :units => :distance) # => "34 centimeters" # def number_to_human(number, options = {}) - options.symbolize_keys! + options = options.symbolize_keys - number = begin - Float(number) - rescue ArgumentError, TypeError - if options[:raise] - raise InvalidNumberError, number - else - return number - end - end + number = (parse_float(number, options[:raise]) or return number) - defaults = I18n.translate(:'number.format', :locale => options[:locale], :default => {}) - human = I18n.translate(:'number.human.format', :locale => options[:locale], :default => {}) - defaults = defaults.merge(human) + defaults = format_translations('human', options[:locale]) + options = defaults.merge!(options) - options = options.reverse_merge(defaults) #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) @@ -494,6 +558,25 @@ module ActionView decimal_format.gsub(/%n/, formatted_number).gsub(/%u/, unit).strip.html_safe end + private + + def format_translations(namespace, locale) + defaults_translations(locale).merge(translations_for(namespace, locale)) + end + + def defaults_translations(locale) + I18n.translate(:'number.format', :locale => locale, :default => {}) + end + + def translations_for(namespace, locale) + I18n.translate(:"number.#{namespace}.format", :locale => locale, :default => {}) + end + + def parse_float(number, raise_error) + Float(number) + rescue ArgumentError, TypeError + raise InvalidNumberError, number if raise_error + end end end end |