/**
  * Internal mechanism to set the Skill id
  * 
  * @param Position $model
  * @param mixed $relatedId
  */
 protected function doSetSkillId(Position $model, $relatedId)
 {
     if ($model->getEndPositionId() !== $relatedId) {
         $model->setEndPositionId($relatedId);
         return true;
     }
     return false;
 }