/
number_helper.rb
346 lines (337 loc) · 15.8 KB
/
number_helper.rb
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module ActiveSupport
module NumberHelper
extend ActiveSupport::Autoload
eager_autoload do
autoload :NumberConverter
autoload :NumberToRoundedConverter
autoload :NumberToDelimitedConverter
autoload :NumberToHumanConverter
autoload :NumberToHumanSizeConverter
autoload :NumberToPhoneConverter
autoload :NumberToCurrencyConverter
autoload :NumberToPercentageConverter
end
extend self
# 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.
# ==== 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(1235551234, country_code: 1, extension: 1343, delimiter: '.')
# # => +1.123.555.1234 x 1343
def number_to_phone(number, options = {})
NumberToPhoneConverter.convert(number, options)
end
# 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.
#
# ==== 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) # => 1 234 567 890,51 €
# number_to_currency('123a456') # => $123a456
#
# number_to_currency(-1234567890.50, negative_format: '(%u%n)')
# # => ($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 = {})
NumberToCurrencyConverter.convert(number, options)
end
# 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>:format</tt> - Specifies the format of the percentage
# string The number field is <tt>%n</tt> (defaults to "%n%").
#
# ==== 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 %
def number_to_percentage(number, options = {})
NumberToPercentageConverter.convert(number, options)
end
# 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 ".").
#
# ==== Examples
#
# number_to_delimited(12345678) # => 12,345,678
# number_to_delimited('123456') # => 123,456
# number_to_delimited(12345678.05) # => 12,345,678.05
# number_to_delimited(12345678, delimiter: '.') # => 12.345.678
# number_to_delimited(12345678, delimiter: ',') # => 12,345,678
# number_to_delimited(12345678.05, separator: ' ') # => 12,345,678 05
# number_to_delimited(12345678.05, locale: :fr) # => 12 345 678,05
# number_to_delimited('112a') # => 112a
# number_to_delimited(98765432.98, delimiter: ' ', separator: ',')
# # => 98 765 432,98
def number_to_delimited(number, options = {})
NumberToDelimitedConverter.convert(number, options)
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+).
# 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+).
#
# ==== Examples
#
# number_to_rounded(111.2345) # => 111.235
# number_to_rounded(111.2345, precision: 2) # => 111.23
# number_to_rounded(13, precision: 5) # => 13.00000
# number_to_rounded(389.32314, precision: 0) # => 389
# number_to_rounded(111.2345, significant: true) # => 111
# number_to_rounded(111.2345, precision: 1, significant: true) # => 100
# number_to_rounded(13, precision: 5, significant: true) # => 13.000
# number_to_rounded(111.234, locale: :fr) # => 111,234
#
# number_to_rounded(13, precision: 5, significant: true, strip_insignificant_zeros: true)
# # => 13
#
# number_to_rounded(389.32314, precision: 4, significant: true) # => 389.3
# number_to_rounded(1111.2345, precision: 2, separator: ',', delimiter: '.')
# # => 1.111,23
def number_to_rounded(number, options = {})
NumberToRoundedConverter.convert(number, options)
end
# 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.
#
# ==== 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)
#
# ==== Examples
#
# number_to_human_size(123) # => 123 Bytes
# number_to_human_size(1234) # => 1.21 KB
# number_to_human_size(12345) # => 12.1 KB
# number_to_human_size(1234567) # => 1.18 MB
# number_to_human_size(1234567890) # => 1.15 GB
# number_to_human_size(1234567890123) # => 1.12 TB
# number_to_human_size(1234567, precision: 2) # => 1.2 MB
# 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):
#
# 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 = {})
NumberToHumanSizeConverter.convert(number, options)
end
# 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.
#
# You can also define your 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
#
# ==== Examples
#
# number_to_human(123) # => "123"
# number_to_human(1234) # => "1.23 Thousand"
# number_to_human(12345) # => "12.3 Thousand"
# number_to_human(1234567) # => "1.23 Million"
# number_to_human(1234567890) # => "1.23 Billion"
# number_to_human(1234567890123) # => "1.23 Trillion"
# number_to_human(1234567890123456) # => "1.23 Quadrillion"
# number_to_human(1234567890123456789) # => "1230 Quadrillion"
# number_to_human(489939, precision: 2) # => "490 Thousand"
# number_to_human(489939, precision: 4) # => "489.9 Thousand"
# number_to_human(1234567, precision: 4,
# significant: false) # => "1.2346 Million"
# number_to_human(1234567, precision: 1,
# separator: ',',
# significant: false) # => "1,2 Million"
#
# 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"
#
# ==== Custom Unit Quantifiers
#
# You can also use your own custom unit quantifiers:
# number_to_human(500000, units: { unit: 'ml', thousand: 'lt' }) # => "500 lt"
#
# If in your I18n locale you have:
#
# distance:
# centi:
# one: "centimeter"
# other: "centimeters"
# unit:
# one: "meter"
# other: "meters"
# thousand:
# one: "kilometer"
# other: "kilometers"
# billion: "gazillion-distance"
#
# Then you could do:
#
# number_to_human(543934, units: :distance) # => "544 kilometers"
# number_to_human(54393498, units: :distance) # => "54400 kilometers"
# number_to_human(54393498000, units: :distance) # => "54.4 gazillion-distance"
# number_to_human(343, units: :distance, precision: 1) # => "300 meters"
# number_to_human(1, units: :distance) # => "1 meter"
# number_to_human(0.34, units: :distance) # => "34 centimeters"
def number_to_human(number, options = {})
NumberToHumanConverter.convert(number, options)
end
end
end