Call back function -ror

From Sandoz

   * (-) save
   * (-) valid?
   * (1) before_validation
   * (2) before_validation_on_create
   * (-) validate
   * (-) validate_on_create
   * (3) after_validation
   * (4) after_validation_on_create
   * (5) before_save
   * (6) before_create
   * (-) create
   * (7) after_create
   * (8) after_save