final public function getRelatedProperty($relatedProperty, $wantedProperty) {
		
		$obj = $this->getRelated($relatedProperty);
		
		if ($obj) {
			return $obj->$wantedProperty;
		} else {
			return NULL;
		}
		
	}
final public function getRelatedProperty($relatedProperty, $wantedProperty) {
		
		$obj = $this->getRelated($relatedProperty);
		
		if ($obj) {
			return $obj->$wantedProperty;
		} else {
			return NULL;
		}
		
	}
final public function getRelatedProperty ( $ relatedProperty , $ wantedProperty ) { $ obj = $ this -> getRelated ( $ relatedProperty ) ; if ( $ obj ) { return $ obj -> $ wantedProperty ; } else { return NULL ; } }
Extended method to return a property value of the Pair\ActiveRecord inherited object related to
this by a ForeignKey in DB-table. Cached method.

@param	string	Related property name, belongs to this object.
@param	string	Wanted property name, belongs to related object.

@return	multitype|NULL
Extended method to return a property value of the Pair \ ActiveRecord inherited object related to this by a ForeignKey in DB - table . Cached method .