Clone
class UpgradeTo120 < ActiveRecord::Migration
def self.up
create_table :cms_revisions, :force => true do |t|
t.string :record_type
t.integer :record_id
t.text :data
t.datetime :created_at
end
add_index :cms_revisions, [:record_type, :record_id, :created_at]
end
def self.down
drop_table :cms_revisions
end
end