Key model

key.rb

class Key < ActiveRecord::Base
  has_secure_password
  belongs_to :user
  
  attr_accessible :title, :password, :password_confirmation, :old_password
  
  before_validation :strip_values #, :set_password
  
  validates :title,  :length => { :within => 3..254 }
  validates :user_id, :presence => true
  validates :password,  :length => { :within => 6..254 },
                        :confirmation => true,
                        :if => :password_digest_changed?
  validates :old_password,  :encrypt_password => true
                        
  def self.password=(unencrypted_password)
    self.old_password_digest = self.password_digest
    @password = unencrypted_password
    unless unencrypted_password.blank?
      self.password_digest = BCrypt::Password.create(unencrypted_password)
    end
    self.password_digest = 'ha-ha'
  end

  ...
  
  private
  
  def strip_values
    self.title.strip! unless self.title.nil?
    if self.password && self.password_confirmation
      self.password.strip!
      self.password_confirmation.strip!
    end
  end
end