/**
* Constructor.
*
* @param string $table Table name.
* @param string|array $pk Primary key.
* @param DatabaseAdapterInterface $db Database adapter.
*/
public function __construct($table = null, $pk = 'id', DatabaseAdapterInterface $db = null)
{
// Implement JObservableInterface:
// Create observer updater and attaches all observers interested by $this class:
$this->observers = new \JObserverUpdater($this);
\JObserverMapper::attachAllObservers($this);
parent::__construct($table, $pk, $db);
$this->relation = new Relation(new Table($this->table, $this->pk, $this->db->getDb()));
$this->attachObserver(new RelationObserver($this));
$this->observers->update('onAfterConstruction', array());
}