class CreateHeartBeats < ActiveRecord::Migration[4.2]
  def change
    create_table :heart_beats, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
      t.column 'user_id',:integer
      t.column 'ip_address',:string

      t.timestamps
    end
  end
end