/**
  * Compare two options and determine if they are equal
  *
  * @param Option $firstOption
  * @param Option $secondOption
  * @return int
  */
 private function compareOptions(Option $firstOption, Option $secondOption)
 {
     if ($firstOption->getId() == $secondOption->getId()) {
         return 0;
     } else {
         return 1;
     }
 }