Rails 数字到印度货币格式转换助手

Question

我有像 100000 这样的数字，

当我用户 number_to_currency(100000) 时

，它给出 - 100,000.00

但我怎样才能获得像 1,00,000.00 这样的格式

，因为 $ 100,000 看起来不错，但要以卢比显示它，我需要像这样的分隔符（','） - 1, 00,00,000.00

Answer 1

结账 http://www.funonrails.com/ 2011/03/number-to-indian-currency-helper-for.html

def number_to_indian_currency(number, html=true)
 txt = html ? content_tag(:span, 'Rs.', :class => :WebRupee) : 'Rs.' 
 "#{txt} #{number.to_s.gsub(/(\d+?)(?=(\d\d)+(\d)(?!\d))(\.\d+)?/, "\\1,")}"
 end 

Answer 2

RubyMoney 有一个针对南亚的格式化选项（也可用于印度）。

def number_to_indian_rupee(rupees)
  Money.new(rupees, "INR").format(south_asian_number_formatting: true)
end

Answer 3

def number_to_indian_currency(number)
  if number.present?
    string = number.to_s.split('.')
    number = string[0].gsub(/(\d+)(\d{3})$/){ p = $2;"#{$1.reverse.gsub(/(\d{2})/,'\1,').reverse},#{p}"}
    number = number.gsub(/^,/, '') + '.' + string[1] if string[1] # remove leading comma
    number = number[1..-1] if number[0] == 44
  end
  "Rs.#{number}"
 end

Answer 4

我建议编写您自己的函数来执行此显示格式，而不是覆盖 number_to_currency。您可以将其命名为 r_number_to_currency 或类似名称，并将其放置在您的应用程序视图助手中。

Answer 5

是的，潘，我为此写了一个助手......

类似这样的东西 -

def rupees_helper(number)
      number = number.to_s
      rs = ""
      number.reverse.chars.each_with_index{|i, index| rs<<i; rs<<"," if index==2; rs<<"," if (index!=number.chars.count-1&&index>3&&index%2==0) }
      rs = rs.reverse
      return "Rs. " + rs
  end

通过 1000000 给我“10,00,000 卢比”

谢谢。

Answer 6

def number_to_indian_currency(number) 
    if number string = number.to_s.split('.') 
     number = string[0].gsub(/(\d+)(\d{3})$/){ p = $2;"#{$1.reverse.gsub(/(\d{2})/,'\1,').reverse},#{p}"} 
     number = number.gsub(/^,/, '') + '.' + string[1] if string[1] # remove leading comma 
     number = number[1..-1] if number[0] == 44  
    end 
   "Rs.#{number}" 
end

不同组合的示例输出

  helper.number_to_indian_currency(2000)=> “Rs.2,000”

  helper.number_to_indian_currency(2040)=> “Rs.2,040”

  helper.number_to_indian_currency(1222040.54)=> “Rs.12,22,040.54”