class AddStepToPhone < ActiveRecord::Migration[5.2]
  def up
    add_column :phones, :category, :integer, null: false
    add_column :phones, :state, :integer, null: true, default: 0
    add_column :phones, :step, :integer, null: true, default: 0
  end

  def down
    remove_column :phones, :category
    remove_column :phones, :state
    remove_column :phones, :step
  end
end