foodsoft/app/models/financial_transaction.rb

# financial transactions are the foodcoop internal financial transactions
# only ordergroups have an account  balance and are happy to transfer money
class FinancialTransaction < ActiveRecord::Base
  belongs_to :ordergroup
  belongs_to :user
  
  validates_presence_of :amount, :note, :user_id, :ordergroup_id
  validates_numericality_of :amount

  localize_input_of :amount

  # Use this save method instead of simple save and after callback
  def add_transaction!
    ordergroup.add_financial_transaction! amount, note, user
  end
end

# == Schema Information
#
# Table name: financial_transactions
#
#  id            :integer(4)      not null, primary key
#  ordergroup_id :integer(4)      default(0), not null
#  amount        :decimal(8, 2)   default(0.0), not null
#  note          :text            default(""), not null
#  user_id       :integer(4)      default(0), not null
#  created_on    :datetime        not null
#