Decimalizer

Create virtual attributes on ActiveRecord models for accessing money values stored in pence/cents as an int as decimals. Rails validation compatible.

Installation (Rails)

cd into your Rails root folder
script/plugin install git://github.com/miletbaker/decimalizer.git

Just include Decimalizer in your model (where required)

class MyModel < ActiveRecord::Base
    include Decimalizer
    decimalize :price # Monetary amount stored in pence / cents

end

Then you will be able to access price as a decimal via the generated virtual attributes

m = MyModel.new
m.price = 2300
m.price_as_decimal  # 23.00

You can pass in the value from a view

m = MyModel.new({price_as_decimal => "45.99"})
m.price             # 4599

You can also use this virtual attribute with ActiveRecord validations, i.e.

class MyModel < ActiveRecord::Base
    ...
    validates_numericality_of :price_as_decimal, :message => "is not a valid price"
    ...
end