Chris@909: class SaltUserPasswords < ActiveRecord::Migration
Chris@909:   
Chris@909:   def self.up
Chris@909:     say_with_time "Salting user passwords, this may take some time..." do
Chris@909:       User.salt_unsalted_passwords!
Chris@909:     end
Chris@909:   end
Chris@909: 
Chris@909:   def self.down
Chris@909:     # Unsalted passwords can not be restored
Chris@909:     raise ActiveRecord::IrreversibleMigration, "Can't decypher salted passwords. This migration can not be rollback'ed."
Chris@909:   end
Chris@909: end