money

https://github.com/RubyMoney/money should cover the formatting for this and many other currencies as well.

# Paisa.format / Paisa.format_with_sym This can be done with Rails's number_to_currency helper: https://apidock.com/rails/ActionView/Helpers/NumberHelper/nu... # Paisa.words There is number_to_human which is close: https://api.rubyonrails.org/classes/ActionView/Helpers/Numbe..., otherwise number_to_words's gem https://github.com/kslazarev/numbers_and_words I would actually recommend using the money gem to handle money objects: https://github.com/RubyMoney/money

In the db, it's ok to store as decimal, since it's internally an integer. However, unless your language/framework has built-in support for money, you should use a library to deal with it (Or build one). Specifically, you do NOT want to treat them as floats, so you will probably end up handling them as integer cents. Because of this, you might as well do the same in the db for consistency. Also mind that some db-layers may automatically convert decimal into floats in your application language. So the safer choice is probably to just store as integer cents. It seems to be the most common scheme, to my recall. While you're at it, keep a currency-symbol/code together with your cents in the same value-object. Just like time is incomplete without a time zone, money is incomplete without a currency. You will thank me later. For inspiration, [Rub