Provides custom Ecto type to use Money.

It might work with different adapters, but it has only been tested on PostgreSQL as a composite type.

Usage:

Schema:

defmodule Item do
  use Ecto.Schema

  schema "items" do
    field :name, :string
    field :price, Money.Ecto
  end
end

Migration:

def change do
  execute "
    CREATE TYPE moneyz AS (
      cents integer,
      currency varchar
    );
  "

  create table(:items) do
    add :name, :string
    add :price, :moneyz
  end
end