add query sort by grand total

internal/modules/marketing/services/deliveryorder.service.go

@@ -308,6 +308,8 @@ func (s deliveryOrdersService) GetAll(c *fiber.Ctx, params *validation.DeliveryO
 			return db.Order(statusSQL)
 		case "customer":
 			return db.Joins("LEFT JOIN customers ON customers.id = marketings.customer_id").Order("COALESCE(customers.name, '') " + orderDir)
+		case "grand_total":
+			return db.Order("(SELECT COALESCE(SUM(mp.total_price), 0) FROM marketing_products mp WHERE mp.marketing_id = marketings.id) " + orderDir)
 		default:
 			return db.Order("created_at DESC").Order("updated_at DESC")
 		}