# File lib/puppet/rails/database/001_add_created_at_to_all_tables.rb, line 2
2:     def self.up
3:         ActiveRecord::Base.connection.tables.each do |t|
4:             unless ActiveRecord::Base.connection.columns(t).collect {|c| c.name}.include?("created_at")
5:                 add_column t.to_s, :created_at, :datetime
6:             end
7:         end
8:     end