[selectricity] / app / models / voter.rb

class Voter < ActiveRecord::Base
  belongs_to :election
  has_one :vote

  before_create :create_password

  def create_password
    token_generator = UniqueTokenGenerator.new( 16 )
    until password and not password.empty? \
          and Voter.find_all( [ "password = ?", password ]).empty?
      self.password = token_generator.token
    end
  end

end