number_to_currency
number_to_currency(number, options = {})Delegates to ActiveSupport::NumberHelper#number_to_currency.
Additionally, supports a :raise option that will cause InvalidNumberError to be raised if number is not a valid number:
number_to_currency("12x34") # => "$12x34" number_to_currency("12x34", raise: true) # => InvalidNumberError
6Notes
Brazilian Real (R$ 1.200,95)
helper: def number_to_currency_br(number) number_to_currency(number, :unit => "R$ ", :separator => ",", :delimiter => ".") end
number_to_euro
in small cells:
12
€
-->
12 €
def number_to_euro(amount)
number_to_currency(amount,:unit=>'€').gsub(' ',nbsp)
end
Use this in controllers
Sometimes you're gonna need this in controllers. Just put this in the controller:
include ActionView::Helpers::NumberHelper
How to change format automatically depending on locale...
... without passing locale option.
In your application_helper.rb (or in other helper) place following code:
def number_to_currency(number, options = {})
options[:locale] ||= I18n.locale
super(number, options)
end
Then, in your locale files: en-GB: number: currency: format: format: "%n %u" unit: "USD"
And that is it :)
Bangladeshi Taka (BDT 1,200.95)
==== Code example
def to_bdt(amount)
number_to_currency(amount, :unit => "BDT ", :separator => ".", :delimiter => ",")
end
If you happen to face some weird rounding issue...
i.e.
helper.number_to_currency(187) => "190 kr"
check out your... translations! Especially 'significant' key... In my case it was
number: currency: format: significant: 'false'
that broke rounding. It should have been
number: currency: format: significant: ! 'false'
And now it works perfectly
helper.number_to_currency(187) => "187 kr"
