class <%= class_name %> < ActiveRecord::Migration def self.up create_table :<%= session_table_name %> do |t| t.column :session_id, :string t.column :data, :text t.column :updated_at, :datetime end add_index :<%= session_table_name %>, :session_id add_index :<%= session_table_name %>, :updated_at end def self.down drop_table :<%= session_table_name %> end end