Rails formatting BigDecimal

Question

My question it's simple (I think):

In Rails I have custom datetime format function called l, there are a equivalent for BigDecimal?

Example that I want:

index.html.erb

<%= l bill.date, format: :od %>
<%= ? bill.total_amount, format: :o2d %>
<%= ? bill.tax_amount, format: :o2d %>

I want to represent BigDecimal as currency with money symbol, but now I use:

<%= number_to_currency bill.total_amount, unit: '&euro;', separator: ',', delimiter: '.', format: '%n %u' %>

It's seems dirty?

Thanks in advance.

Answer 1

This ruby gem will help you.

https://github.com/RubyMoney/money

Probably you have to implement your own view helper, and you should implement in it as like follows.

money = Money.new(1000, "USD")
money.cents => 1000
money.symbol => $    

def money_helper(money)
  "#{money.symbol}#{money.cents}" 
end

<%= money_helper 1000 %> => $1000

More Configs:

curr = {
  :priority        => 1,
  :iso_code        => "USD",
  :iso_numeric     => "840",
  :name            => "United States Dollar",
  :symbol          => "$",
  :subunit         => "Cent",
  :subunit_to_unit => 100,
  :separator       => ".",
  :delimiter       => ","
}


The pre-defined set of attributes includes:

:priority a numerical value you can use to sort/group the currency list
:iso_code the international 3-letter code as defined by the ISO 4217 standard
:iso_numeric the international 3-digit code as defined by the ISO 4217 standard
:name the currency name
:symbol the currency symbol (UTF-8 encoded)
:subunit the name of the fractional monetary unit
:subunit_to_unit the proportion between the unit and the subunit
:separator character between the whole and fraction amounts
:delimiter character between each thousands place

Answer 2

you could define your own helper for what you are doing in number_to_currency bill.total_amount, unit: '€', separator: ',', delimiter: '.', format: '%n %u'

def money value
  number_to_currency value, unit: '€', separator: ',', delimiter: '.', format: '%n %u'
end

and use it like <%= money(bill.total_amount) %>