First iteration - Bootstrapping

.gitignore

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+## MAC OS
+.DS_Store
+
+## TEXTMATE
+*.tmproj
+tmtags
+
+## EMACS
+*~
+\#*
+.\#*
+
+## VIM
+*.swp
+
+## Rubymine
+.idea
+
+## PROJECT::GENERAL
+coverage
+rdoc
+pkg
+*.rbc
+.rvmrc
+
+## PROJECT::SPECIFIC
+.yardoc
+doc
+.rbenv-version
+.rbx

Gemfile

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+source 'https://rubygems.org'
+
+gem 'rake'
+
+group :test do
+  gem 'rspec'
+end
+
+group :test, :development do
+  gem 'rails', '>= 3.0.0'
+end
+
+# dependencies in money-rails.gemspec
+gemspec

Gemfile.lock

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+PATH
+  remote: .
+  specs:
+    money-rails (0.0.1)
+      activesupport (>= 3.0)
+      money (~> 4.0.2)
+      railties (>= 3.0)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    actionmailer (3.2.2)
+      actionpack (= 3.2.2)
+      mail (~> 2.4.0)
+    actionpack (3.2.2)
+      activemodel (= 3.2.2)
+      activesupport (= 3.2.2)
+      builder (~> 3.0.0)
+      erubis (~> 2.7.0)
+      journey (~> 1.0.1)
+      rack (~> 1.4.0)
+      rack-cache (~> 1.1)
+      rack-test (~> 0.6.1)
+      sprockets (~> 2.1.2)
+    activemodel (3.2.2)
+      activesupport (= 3.2.2)
+      builder (~> 3.0.0)
+    activerecord (3.2.2)
+      activemodel (= 3.2.2)
+      activesupport (= 3.2.2)
+      arel (~> 3.0.2)
+      tzinfo (~> 0.3.29)
+    activeresource (3.2.2)
+      activemodel (= 3.2.2)
+      activesupport (= 3.2.2)
+    activesupport (3.2.2)
+      i18n (~> 0.6)
+      multi_json (~> 1.0)
+    arel (3.0.2)
+    builder (3.0.0)
+    diff-lcs (1.1.3)
+    erubis (2.7.0)
+    hike (1.2.1)
+    i18n (0.6.0)
+    journey (1.0.3)
+    json (1.6.6)
+    mail (2.4.4)
+      i18n (>= 0.4.0)
+      mime-types (~> 1.16)
+      treetop (~> 1.4.8)
+    mime-types (1.18)
+    money (4.0.2)
+      i18n (~> 0.4)
+      json
+    multi_json (1.2.0)
+    polyglot (0.3.3)
+    rack (1.4.1)
+    rack-cache (1.2)
+      rack (>= 0.4)
+    rack-ssl (1.3.2)
+      rack
+    rack-test (0.6.1)
+      rack (>= 1.0)
+    rails (3.2.2)
+      actionmailer (= 3.2.2)
+      actionpack (= 3.2.2)
+      activerecord (= 3.2.2)
+      activeresource (= 3.2.2)
+      activesupport (= 3.2.2)
+      bundler (~> 1.0)
+      railties (= 3.2.2)
+    railties (3.2.2)
+      actionpack (= 3.2.2)
+      activesupport (= 3.2.2)
+      rack-ssl (~> 1.3.2)
+      rake (>= 0.8.7)
+      rdoc (~> 3.4)
+      thor (~> 0.14.6)
+    rake (0.9.2.2)
+    rdoc (3.12)
+      json (~> 1.4)
+    rspec (2.9.0)
+      rspec-core (~> 2.9.0)
+      rspec-expectations (~> 2.9.0)
+      rspec-mocks (~> 2.9.0)
+    rspec-core (2.9.0)
+    rspec-expectations (2.9.0)
+      diff-lcs (~> 1.1.3)
+    rspec-mocks (2.9.0)
+    sprockets (2.1.2)
+      hike (~> 1.2)
+      rack (~> 1.0)
+      tilt (~> 1.1, != 1.3.0)
+    thor (0.14.6)
+    tilt (1.3.3)
+    treetop (1.4.10)
+      polyglot
+      polyglot (>= 0.3.1)
+    tzinfo (0.3.32)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  money-rails!
+  rails (>= 3.0.0)
+  rake
+  rspec

LICENSE

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+Copyright (c) 2012 Andreas Loupasakis
+
+MIT License
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -4,3 +4,18 @@
 ## Introduction
 
 This library provides integration of [money](http://github.com/Rubymoney/money) gem with Rails.
+
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+    gem 'money-rails'
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install money-rails

lib/money-rails.rb

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+require "money"
+
+require "money-rails/version"
+require "money-rails/monetize"
+require "money-rails/railtie"

lib/money-rails/monetize.rb

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+require 'active_support/concern'
+require 'active_support/core_ext/array/extract_options'
+
+module MoneyRails
+  module Monetizable
+    extend ActiveSupport::Concern
+
+    module ClassMethods
+      def monetize(field, *args)
+        options = args.extract_options!
+
+        # Stringify model field name
+        subunit_name = field.to_s
+
+        # Model currency field name
+        model_currency_name = options[:model_currency] || "currency"
+
+        # Override Model and default currency
+        field_currency_name = options[:field_currency] || nil
+
+        # Form target name for the money backed ActiveModel field:
+        # if a target name is provided then use it
+        # if there is a "_cents" suffix then just remove it to create the target name
+        # if none of the previous is the case then use a default suffix
+        if options[:target_name]
+          name = options[:target_name].to_s
+        elsif subunit_name =~ /_cents$/
+          name = subunit_name.sub(/_cents$/, "")
+        else
+          # FIXME: provide a better default
+          name = subunit_name << "_money"
+        end
+
+        class_eval do
+          composed_of name.to_sym,
+            :class_name => "Money",
+            :mapping => [[subunit_name, "cents"], [model_currency_name, "currency_as_string"]],
+            :constructor => Proc.new { |cents, currency|
+            Money.new(cents || 0, field_currency_name || currency ||
+                      Money.default_currency)
+          },
+            :converter => Proc.new { |value|
+            if  value.respond_to?(:to_money)
+              if field_currency_name
+                value.to_money(field_currency_name)
+              else
+                value.to_money
+              end
+            else
+              raise(ArgumentError, "Can't convert #{value.class} to Money")
+            end
+          }
+        end
+      end
+    end
+  end
+end

lib/money-rails/railtie.rb

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+module MoneyRails
+  module Monetizable
+    class Railtie < ::Rails::Railtie
+      ActiveRecord::Base.send :include, Monetizable
+    end
+  end
+end

lib/money-rails/version.rb

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+module MoneyRails
+    VERSION = "0.0.1"
+end

money-rails.gemspec

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+# -*- encoding: utf-8 -*-
+require File.expand_path('../lib/money-rails/version', __FILE__)
+
+Gem::Specification.new do |s|
+  s.name          = "money-rails"
+  s.version       = MoneyRails::VERSION
+  s.platform      = Gem::Platform::RUBY
+  s.license       = "MIT"
+  s.authors       = ["Andreas Loupasakis", "Shane Emmons", "Simone Carletti"]
+  s.email         = ["[email protected]"]
+  s.description   = %q{This library provides integration of RubyMoney - Money gem with Rails}
+  s.summary       = %q{Money gem integration with Rails}
+  s.homepage      = "https://github.com/RubyMoney/money"
+
+#  s.files         = `git ls-files`.split($\)
+  s.files         =  Dir.glob("{lib,spec}/**/*")
+  s.files         += %w(LICENSE README.md)
+  s.files         += %w(money-rails.gemspec)
+
+
+  s.test_files    = s.files.grep(%r{^(test|spec|features)/})
+
+  s.require_path = "lib"
+
+  s.add_dependency(%q<money>, [">= 4.0.2"])
+  s.add_dependency(%q<activesupport>, [">= 3.0"])
+  s.add_dependency(%q<railties>, [">= 3.0"])
+end