Rails number_to_currency precision doesn't work - is it a bug?

I'm trying to use number_to_currency to get two digits after the decimal dot in Rails 3, but I can get only one. My DB field is defined like this:

t.decimal  "amount",       开发者_StackOverflow       :precision => 5, :scale => 2

In my template I have:

#{number_to_currency(@purch.amount)}

And yet as the result I get: PLN 34,7

In the DB I can clearly see: 34.70

I would like to see my second zero - is it a feature or am I missing something?

Thanks!

The answer is to check the following setting in one's locale configuration file:

  currency:
      format:
        strip_insignificant_zeros: false

Since you seem to be using a custom locale, try forcing the behavior you want by explicitly setting the options of number_to_currency:

number_to_currency(@purch.amount, :precision => 2)

You can also set these options in the locale file for your language. Take a look at http://guides.rubyonrails.org/i18n.html