20140714135007_change_operating_systems_table.rb 325 Bytes
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 
class ChangeOperatingSystemsTable < ActiveRecord::Migration
  def up
    change_table :operating_systems do |t|
      t.remove :name
      t.references :operating_system_name
    end

  end

  def down
    change_table :operating_systems do |t|
      t.string :name
      t.remove :operating_system_name_id
    end
  end
end