/**
  * Adds a related model. Override to support finding opposing relation and making adjustment
  * so when accessing the opposing model, it will reflect properly the changes to the relation.
  * Ignoring when the relations are for the same model, because there is currently an issue with this being supported
  * with group/groups. Eventually todo: fix that and we can open it up to relations with the same model.
  */
 public function add(RedBeanModel $model)
 {
     parent::add($model);
     if (get_class($model) != get_class($this->relatedModel) && null != ($opposingRelationName = $this->getOpposingRelationName($model))) {
         $model->{$opposingRelationName} = $this->relatedModel;
     }
 }