82 lines
3.7 KiB
Ruby
82 lines
3.7 KiB
Ruby
|
module ActionView
|
||
|
|
module Helpers
|
||
|
|
# Provides methods for converting a number into a formatted string that currently represents
|
||
|
|
# one of the following forms: phone number, percentage, money, or precision level.
|
||
|
|
module NumberHelper
|
||
|
|
|
||
|
|
# Formats a +number+ into a US phone number string. The +options+ can be hash used to customize the format of the output.
|
||
|
|
# The area code can be surrounded by parenthesis by setting +:area_code+ to true; default is false
|
||
|
|
# The delimeter can be set using +:delimter+; default is "-"
|
||
|
|
# Examples:
|
||
|
|
# number_to_phone(1235551234) => 123-555-1234
|
||
|
|
# number_to_phone(1235551234, {:area_code => true}) => (123) 555-1234
|
||
|
|
# number_to_phone(1235551234, {:delimter => " "}) => 123 555 1234
|
||
|
|
def number_to_phone(number, options = {})
|
||
|
|
options = options.stringify_keys
|
||
|
|
area_code = options.delete("area_code") { false }
|
||
|
|
delimeter = options.delete("delimeter") { "-" }
|
||
|
|
begin
|
||
|
|
str = number.to_s
|
||
|
|
if area_code == true
|
||
|
|
str.gsub!(/([0-9]{3})([0-9]{3})([0-9]{4})/,"(\\1) \\2#{delimeter}\\3")
|
||
|
|
else
|
||
|
|
str.gsub!(/([0-9]{3})([0-9]{3})([0-9]{4})/,"\\1#{delimeter}\\2#{delimeter}\\3")
|
||
|
|
end
|
||
|
|
rescue
|
||
|
|
number
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
# Formates a +number+ into a currency string. The +options+ hash can be used to customize the format of the output.
|
||
|
|
# The +number+ can contain a level of precision using the +precision+ key; default is 2
|
||
|
|
# The currency type can be set using the +unit+ key; default is "$"
|
||
|
|
# The unit separator can be set using the +separator+ key; default is "."
|
||
|
|
# The delimter can be set using the +delimeter+ key; default is ","
|
||
|
|
# Examples:
|
||
|
|
# number_to_currency(1234567890.50) => $1,234,567,890.50
|
||
|
|
# number_to_currency(1234567890.506) => $1,234,567,890.51
|
||
|
|
# number_to_currency(1234567890.50, {:unit => "£", :separator => ",", :delim => ""}) => £123456789,50
|
||
|
|
def number_to_currency(number, options = {})
|
||
|
|
options = options.stringify_keys
|
||
|
|
precision, unit, separator, delim = options.delete("precision") { 2 }, options.delete("unit") { "$" }, options.delete("separator") { "." }, options.delete("delim") { "," }
|
||
|
|
begin
|
||
|
|
parts = number_with_precision(number, precision).split('.')
|
||
|
|
parts[0].gsub!(/(\d)(?=(\d\d\d)+(?!\d))/, "\\1#{delim}")
|
||
|
|
unit + parts[0] + separator + parts[1].to_s
|
||
|
|
rescue
|
||
|
|
number
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
# Formats a +number+ as into a percentage string. The +options+ hash can be used to customize the format of the output.
|
||
|
|
# The +number+ can contain a level of precision using the +precision+ key; default is 3
|
||
|
|
# The unit separator can be set using the +separator+ key; default is "."
|
||
|
|
# Examples:
|
||
|
|
# number_to_precision(100) => 100.000%
|
||
|
|
# number_to_precision(100, {:precision => 0}) => 100%
|
||
|
|
# number_to_precision(302.0574, {:precision => 2}) => 302.06%
|
||
|
|
def number_to_percentage(number, options = {})
|
||
|
|
options = options.stringify_keys
|
||
|
|
precision, separator = options.delete("precision") { 3 }, options.delete("separator") { "." }
|
||
|
|
begin
|
||
|
|
number = number_with_precision(number, precision)
|
||
|
|
parts = number.split('.')
|
||
|
|
if parts.at(1).nil?
|
||
|
|
parts[0] + "%"
|
||
|
|
else
|
||
|
|
parts[0] + separator + parts[1].to_s + "%"
|
||
|
|
end
|
||
|
|
rescue
|
||
|
|
number
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
# Formats a +number+ with a level of +precision+.
|
||
|
|
# Example:
|
||
|
|
# number_with_precision(111.2345) => 111.235
|
||
|
|
def number_with_precision(number, precision=3)
|
||
|
|
sprintf("%01.#{precision}f", number)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|