public function buildOrder()
	{
		$orders = [];

		foreach ($this->order as $order)
		{
			if (is_object($order['column']))
			{
				$string = $order['column']->build($this);
			}
			else
			{
				$string = $this->connection->quoteName($order['column']);
			}

			$string .= ' ' . strtoupper($order['dir']);
			$orders[] = $string;
		}

		return 'ORDER BY ' . implode(',', $orders);
	}