class AddTrackableToUsers < Jennifer::Migration::Base
change_table(:users) do |t|
t.add_column(:sign_in_count, :string)
t.add_column(:current_sign_in_ip, :string)
t.add_column(:last_sign_in_ip, :string)
t.add_column(:current_sign_in_at, :timestamp)
t.add_column(:last_sign_in_at, :timestamp)
change_table(:users) do |t|
t.drop_column :sign_in_count
t.drop_column :current_sign_in_ip
t.drop_column :last_sign_in_ip
t.drop_column :current_sign_in_at
t.drop_column :last_sign_in_at