e3832c6f79
Upgrade to Rails 2.3.5. Also work around this bug: https://rails.lighthouseapp.com/projects/8994/tickets/3524 created by the aforementioned Rails release.
309 lines
15 KiB
Ruby
309 lines
15 KiB
Ruby
module ActionView
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module Helpers #:nodoc:
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# Provides methods for converting numbers into formatted strings.
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# Methods are provided for phone numbers, currency, percentage,
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# precision, positional notation, and file size.
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module NumberHelper
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# Formats a +number+ into a US phone number (e.g., (555) 123-9876). You can customize the format
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# in the +options+ hash.
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#
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# ==== Options
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# * <tt>:area_code</tt> - Adds parentheses around the area code.
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# * <tt>:delimiter</tt> - Specifies the delimiter to use (defaults to "-").
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# * <tt>:extension</tt> - Specifies an extension to add to the end of the
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# generated number.
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# * <tt>:country_code</tt> - Sets the country code for the phone number.
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#
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# ==== Examples
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# number_to_phone(5551234) # => 555-1234
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# number_to_phone(1235551234) # => 123-555-1234
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# number_to_phone(1235551234, :area_code => true) # => (123) 555-1234
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# number_to_phone(1235551234, :delimiter => " ") # => 123 555 1234
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# number_to_phone(1235551234, :area_code => true, :extension => 555) # => (123) 555-1234 x 555
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# number_to_phone(1235551234, :country_code => 1) # => +1-123-555-1234
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#
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# number_to_phone(1235551234, :country_code => 1, :extension => 1343, :delimiter => ".")
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# => +1.123.555.1234 x 1343
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def number_to_phone(number, options = {})
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number = number.to_s.strip unless number.nil?
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options = options.symbolize_keys
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area_code = options[:area_code] || nil
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delimiter = options[:delimiter] || "-"
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extension = options[:extension].to_s.strip || nil
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country_code = options[:country_code] || nil
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begin
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str = ""
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str << "+#{country_code}#{delimiter}" unless country_code.blank?
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str << if area_code
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number.gsub!(/([0-9]{1,3})([0-9]{3})([0-9]{4}$)/,"(\\1) \\2#{delimiter}\\3")
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else
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number.gsub!(/([0-9]{0,3})([0-9]{3})([0-9]{4})$/,"\\1#{delimiter}\\2#{delimiter}\\3")
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number.starts_with?('-') ? number.slice!(1..-1) : number
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end
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str << " x #{extension}" unless extension.blank?
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str
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rescue
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number
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end
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end
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# Formats a +number+ into a currency string (e.g., $13.65). You can customize the format
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# in the +options+ hash.
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#
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# ==== Options
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# * <tt>:precision</tt> - Sets the level of precision (defaults to 2).
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# * <tt>:unit</tt> - Sets the denomination of the currency (defaults to "$").
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# * <tt>:separator</tt> - Sets the separator between the units (defaults to ".").
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# * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults to ",").
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# * <tt>:format</tt> - Sets the format of the output string (defaults to "%u%n"). The field types are:
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#
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# %u The currency unit
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# %n The number
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#
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# ==== Examples
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# number_to_currency(1234567890.50) # => $1,234,567,890.50
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# number_to_currency(1234567890.506) # => $1,234,567,890.51
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# number_to_currency(1234567890.506, :precision => 3) # => $1,234,567,890.506
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#
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# number_to_currency(1234567890.50, :unit => "£", :separator => ",", :delimiter => "")
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# # => £1234567890,50
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# number_to_currency(1234567890.50, :unit => "£", :separator => ",", :delimiter => "", :format => "%n %u")
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# # => 1234567890,50 £
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def number_to_currency(number, options = {})
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options.symbolize_keys!
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defaults = I18n.translate(:'number.format', :locale => options[:locale], :raise => true) rescue {}
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currency = I18n.translate(:'number.currency.format', :locale => options[:locale], :raise => true) rescue {}
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defaults = defaults.merge(currency)
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precision = options[:precision] || defaults[:precision]
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unit = options[:unit] || defaults[:unit]
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separator = options[:separator] || defaults[:separator]
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delimiter = options[:delimiter] || defaults[:delimiter]
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format = options[:format] || defaults[:format]
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separator = '' if precision == 0
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begin
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format.gsub(/%n/, number_with_precision(number,
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:precision => precision,
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:delimiter => delimiter,
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:separator => separator)
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).gsub(/%u/, unit)
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rescue
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number
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end
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end
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# Formats a +number+ as a percentage string (e.g., 65%). You can customize the
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# format in the +options+ hash.
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#
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# ==== Options
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# * <tt>:precision</tt> - Sets the level of precision (defaults to 3).
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# * <tt>:separator</tt> - Sets the separator between the units (defaults to ".").
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# * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults to "").
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#
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# ==== Examples
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# number_to_percentage(100) # => 100.000%
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# number_to_percentage(100, :precision => 0) # => 100%
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# number_to_percentage(1000, :delimiter => '.', :separator => ',') # => 1.000,000%
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# number_to_percentage(302.24398923423, :precision => 5) # => 302.24399%
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def number_to_percentage(number, options = {})
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options.symbolize_keys!
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defaults = I18n.translate(:'number.format', :locale => options[:locale], :raise => true) rescue {}
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percentage = I18n.translate(:'number.percentage.format', :locale => options[:locale], :raise => true) rescue {}
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defaults = defaults.merge(percentage)
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precision = options[:precision] || defaults[:precision]
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separator = options[:separator] || defaults[:separator]
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delimiter = options[:delimiter] || defaults[:delimiter]
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begin
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number_with_precision(number,
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:precision => precision,
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:separator => separator,
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:delimiter => delimiter) + "%"
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rescue
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number
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end
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end
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# Formats a +number+ with grouped thousands using +delimiter+ (e.g., 12,324). You can
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# customize the format in the +options+ hash.
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#
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# ==== Options
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# * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults to ",").
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# * <tt>:separator</tt> - Sets the separator between the units (defaults to ".").
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#
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# ==== Examples
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# number_with_delimiter(12345678) # => 12,345,678
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# number_with_delimiter(12345678.05) # => 12,345,678.05
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# number_with_delimiter(12345678, :delimiter => ".") # => 12.345.678
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# number_with_delimiter(12345678, :separator => ",") # => 12,345,678
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# number_with_delimiter(98765432.98, :delimiter => " ", :separator => ",")
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# # => 98 765 432,98
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#
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# You can still use <tt>number_with_delimiter</tt> with the old API that accepts the
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# +delimiter+ as its optional second and the +separator+ as its
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# optional third parameter:
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# number_with_delimiter(12345678, " ") # => 12 345.678
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# number_with_delimiter(12345678.05, ".", ",") # => 12.345.678,05
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def number_with_delimiter(number, *args)
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options = args.extract_options!
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options.symbolize_keys!
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defaults = I18n.translate(:'number.format', :locale => options[:locale], :raise => true) rescue {}
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unless args.empty?
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ActiveSupport::Deprecation.warn('number_with_delimiter takes an option hash ' +
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'instead of separate delimiter and precision arguments.', caller)
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delimiter = args[0] || defaults[:delimiter]
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separator = args[1] || defaults[:separator]
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end
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delimiter ||= (options[:delimiter] || defaults[:delimiter])
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separator ||= (options[:separator] || defaults[:separator])
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begin
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parts = number.to_s.split('.')
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parts[0].gsub!(/(\d)(?=(\d\d\d)+(?!\d))/, "\\1#{delimiter}")
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parts.join(separator)
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rescue
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number
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end
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end
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# Formats a +number+ with the specified level of <tt>:precision</tt> (e.g., 112.32 has a precision of 2).
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# You can customize the format in the +options+ hash.
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#
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# ==== Options
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# * <tt>:precision</tt> - Sets the level of precision (defaults to 3).
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# * <tt>:separator</tt> - Sets the separator between the units (defaults to ".").
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# * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults to "").
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#
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# ==== Examples
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# number_with_precision(111.2345) # => 111.235
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# number_with_precision(111.2345, :precision => 2) # => 111.23
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# number_with_precision(13, :precision => 5) # => 13.00000
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# number_with_precision(389.32314, :precision => 0) # => 389
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# number_with_precision(1111.2345, :precision => 2, :separator => ',', :delimiter => '.')
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# # => 1.111,23
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#
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# You can still use <tt>number_with_precision</tt> with the old API that accepts the
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# +precision+ as its optional second parameter:
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# number_with_precision(number_with_precision(111.2345, 2) # => 111.23
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def number_with_precision(number, *args)
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options = args.extract_options!
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options.symbolize_keys!
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defaults = I18n.translate(:'number.format', :locale => options[:locale], :raise => true) rescue {}
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precision_defaults = I18n.translate(:'number.precision.format', :locale => options[:locale],
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:raise => true) rescue {}
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defaults = defaults.merge(precision_defaults)
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unless args.empty?
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ActiveSupport::Deprecation.warn('number_with_precision takes an option hash ' +
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'instead of a separate precision argument.', caller)
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precision = args[0] || defaults[:precision]
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end
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precision ||= (options[:precision] || defaults[:precision])
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separator ||= (options[:separator] || defaults[:separator])
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delimiter ||= (options[:delimiter] || defaults[:delimiter])
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begin
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rounded_number = (Float(number) * (10 ** precision)).round.to_f / 10 ** precision
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number_with_delimiter("%01.#{precision}f" % rounded_number,
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:separator => separator,
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:delimiter => delimiter)
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rescue
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number
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end
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end
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STORAGE_UNITS = [:byte, :kb, :mb, :gb, :tb].freeze
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# Formats the bytes in +size+ into a more understandable representation
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# (e.g., giving it 1500 yields 1.5 KB). This method is useful for
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# reporting file sizes to users. This method returns nil if
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# +size+ cannot be converted into a number. You can customize the
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# format in the +options+ hash.
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#
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# ==== Options
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# * <tt>:precision</tt> - Sets the level of precision (defaults to 1).
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# * <tt>:separator</tt> - Sets the separator between the units (defaults to ".").
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# * <tt>:delimiter</tt> - Sets the thousands delimiter (defaults to "").
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#
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# ==== Examples
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# number_to_human_size(123) # => 123 Bytes
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# number_to_human_size(1234) # => 1.2 KB
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# number_to_human_size(12345) # => 12.1 KB
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# number_to_human_size(1234567) # => 1.2 MB
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# number_to_human_size(1234567890) # => 1.1 GB
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# number_to_human_size(1234567890123) # => 1.1 TB
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# number_to_human_size(1234567, :precision => 2) # => 1.18 MB
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# number_to_human_size(483989, :precision => 0) # => 473 KB
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# number_to_human_size(1234567, :precision => 2, :separator => ',') # => 1,18 MB
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#
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# Zeros after the decimal point are always stripped out, regardless of the
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# specified precision:
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# helper.number_to_human_size(1234567890123, :precision => 5) # => "1.12283 TB"
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# helper.number_to_human_size(524288000, :precision=>5) # => "500 MB"
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#
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# You can still use <tt>number_to_human_size</tt> with the old API that accepts the
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# +precision+ as its optional second parameter:
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# number_to_human_size(1234567, 2) # => 1.18 MB
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# number_to_human_size(483989, 0) # => 473 KB
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def number_to_human_size(number, *args)
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return nil if number.nil?
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options = args.extract_options!
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options.symbolize_keys!
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defaults = I18n.translate(:'number.format', :locale => options[:locale], :raise => true) rescue {}
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human = I18n.translate(:'number.human.format', :locale => options[:locale], :raise => true) rescue {}
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defaults = defaults.merge(human)
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unless args.empty?
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ActiveSupport::Deprecation.warn('number_to_human_size takes an option hash ' +
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'instead of a separate precision argument.', caller)
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precision = args[0] || defaults[:precision]
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end
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precision ||= (options[:precision] || defaults[:precision])
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separator ||= (options[:separator] || defaults[:separator])
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delimiter ||= (options[:delimiter] || defaults[:delimiter])
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storage_units_format = I18n.translate(:'number.human.storage_units.format', :locale => options[:locale], :raise => true)
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if number.to_i < 1024
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unit = I18n.translate(:'number.human.storage_units.units.byte', :locale => options[:locale], :count => number.to_i, :raise => true)
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storage_units_format.gsub(/%n/, number.to_i.to_s).gsub(/%u/, unit)
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else
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max_exp = STORAGE_UNITS.size - 1
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number = Float(number)
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exponent = (Math.log(number) / Math.log(1024)).to_i # Convert to base 1024
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exponent = max_exp if exponent > max_exp # we need this to avoid overflow for the highest unit
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number /= 1024 ** exponent
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unit_key = STORAGE_UNITS[exponent]
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unit = I18n.translate(:"number.human.storage_units.units.#{unit_key}", :locale => options[:locale], :count => number, :raise => true)
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begin
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escaped_separator = Regexp.escape(separator)
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formatted_number = number_with_precision(number,
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:precision => precision,
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:separator => separator,
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:delimiter => delimiter
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).sub(/(#{escaped_separator})(\d*[1-9])?0+\z/, '\1\2').sub(/#{escaped_separator}\z/, '')
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storage_units_format.gsub(/%n/, formatted_number).gsub(/%u/, unit)
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rescue
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number
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end
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end
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end
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end
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end
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end
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