Random String example for http://uhhuhyeah.com/distractions/random-strings-in-ruby

random_uhy.rb

def create_token
 self.token = secure_digest(Time.now, self.id, (1..10).map{ rand.to_s })
end

def secure_digest(*args)
 Digest::SHA1.hexdigest(args.flatten.join('--'))
end