1class CreateEvents < ActiveRecord::Migration
 2  def change
 3    enable_extension 'uuid-ossp' unless extension_enabled?('uuid-ossp')
 4    create_table :events, id: :uuid, default: 'uuid_generate_v4()' do |t|
 5      t.string :name
 6      t.json :data
 7
 8      t.timestamps null: false
 9    end
10  end
11end