class AddInitialBalanceToAccount < ActiveRecord::Migration
  def self.up
    add_column :accounts, :initialBalance, :decimal, :scale => 2, :precision => 15, :default => 0.00

~/dev $ sudo gem install --verbose rake
Exception during cache_data handling: TypeError - invalid Gem::Specification format ["1.2.0", 3, "flow", #<Gem::Version "0.0.1">, Fri Aug 08 17:00:00 -0500 2008, "A Web Server", #<Gem::Requirement:0xb76435a4 @requirements=[[">=", #<Gem::Version "1.9.0">]], @version=nil>, #<Gem::Requirement:0xb76434dc @requirements=[[">=", #<Gem::Version "0">]], @version=nil>, "ruby", [#<Gem::Dependency:0xb76432ac @type=:runtime, @version_requirements=#<Gem::Requirement:0xb7643234 @requirements=[[">=", #<Gem::Version "0.2.2">]], @version=nil>, @version_requirement=nil, @name="rev">], "flow", "ry at tiny clouds dot org", ["ry dahl"], "A Web Server", "http://flow.rubyforge.org", false, "ruby"]
Cache file was: /var/lib/gems/1.8/latest_source_cache

class User
 
  random = rand(Time.now.to_i)