public function delete () : bool
	{
        $dbObject  = Database::getInstance();
		$sqlQuery  = "DELETE FROM ".static::$tableName." WHERE id=";
		$sqlQuery .= $dbObject->escapeValue($this->id)." LIMIT 1";
		$dbObject->query($sqlQuery);
		static::$affectedRows = $dbObject->affectedRows();
		return ($dbObject->affectedRows() == 1) ? TRUE : FALSE;
	}