ArTransactionChanges

Store transaction changes for active record objects so that they are available in an after_commit callbacks.

Installation

Add this line to your application's Gemfile:

gem 'ar_transaction_changes'

And then execute:

$ bundle

Or install it yourself as:

$ gem install ar_transaction_changes

Usage

Just include ArTransactionChanges and transaction_changed_attributes will store the original values for all the changed attributes throughout the transaction.

class User < ActiveRecord::Base
  include ArTransactionChanges

  after_commit :print_transaction_changes

  def print_transaction_changes
    transaction_changed_attributes.each do |name, old_value|
      puts "attribute #{name}: #{old_value.inspect} -> #{send(name).inspect}"
    end
  end
end

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request