SELECT p.product_id, SUM(op.quantity) AS total_sold
			FROM grd_order_product op
			LEFT JOIN grd_`order` o ON (op.order_id = o.order_id)
			LEFT JOIN grd_product p ON (p.product_id = op.product_id)
			LEFT JOIN grd_product_to_category p2c ON (p2c.product_id = p.product_id)
			WHERE o.order_status_id > 0
			AND o.date_added >= DATE_SUB(NOW(), INTERVAL 1 MONTH)
			AND p.status = 1 
			AND p.quantity > 0 
			AND p.price > 0 
			AND p.date_available <= NOW()
			AND p2c.category_id = 90052
			GROUP BY p.product_id
			ORDER BY total_sold DESC
			LIMIT 0,6