require 'digest/sha1'

class UnstaticPassword < ActiveRecord::Base
  def self.encrypt(string)
    Digest::SHA1.hexdigest(string)
  end
  
  def self.authorized?(password)
    UnstaticPassword.find_by_encrypted(encrypt(password)) ? true : false
  end
  
  def password=(string)
    self.encrypted = UnstaticPassword.encrypt(string)
  end
end