# 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