Update from select with join on same table - mysql

Question

UPDATE inventory_audit_scans
SET inventory_audit_scans.inventory_item_id =
(SELECT id FROM (SELECT inventory_item.id as id
FROM inventory_item
RIGHT JOIN products
ON products.id = inventory_item.product_id
LEFT JOIN barcodes
ON barcodes.product_id = inventory_item.product_id
LEFT JOIN products_skus
ON products_skus.product_id = inventory_item.product_id
LEFT OUTER JOIN inventory_audit_scans ias
ON ias.inventory_item_id = inventory_item.id
AND ias.audit_report_id =
inventory_audit_scans.audit_report_id
WHERE ( products.sku LIKE inventory_audit_scans.text
OR barcodes.barcode LIKE inventory_audit_scans.text
OR products_skus.sku LIKE inventory_audit_scans.text
OR inventory_item.serial LIKE inventory_audit_scans.text )
AND inventory_item.store_id = in_store_id
AND inventory_audit_scans.inventory_item_id IS NULL
AND ( ( ( products.category_id =
inventory_audit_scans.category_id )
AND ( inventory_audit_scans.category_id IS NOT NULL ) )
OR ( ( ( products.category_id = 1 )
OR ( products.category_id = 2 ) )
AND inventory_audit_scans.category_id IS NULL ) )
ORDER BY inventory_item.id ASC
LIMIT 1) TmpTbl),
inventory_audit_scans.status_id = IF(inventory_audit_scans.inventory_item_id , 1 , 2) ,
updated = Now()
WHERE inventory_audit_scans.audit_report_id = 1
In the inner select where I get the error message
Error Code: 1054. Unknown column 'inventory_audit_scans.text' in 'where clause'
Is there any way i can access the actual row of the update statement in the enclosed SELECT to determine which would be the next available free ID which i not already used?
Before it tried it via the following method which takes approximately 3 minutes to "audit" 1600 records:
CREATE PROCEDURE `compareaudit`(IN audit_id INT(11))
BEGIN
DECLARE bDone INT DEFAULT 0;
DECLARE current_record_id INT(11) DEFAULT NULL;
DECLARE current_category_id INT(11) DEFAULT NULL;
DECLARE current_text VARCHAR(50) DEFAULT NULL;
DECLARE current_store_id INT(11) DEFAULT NULL;
DECLARE current_audit_id INT(11) DEFAULT NULL;
DECLARE res_inventory_item_id INT(11) DEFAULT NULL;
DECLARE res_serial VARCHAR(50) DEFAULT NULL;
DECLARE res_sku VARCHAR(20) DEFAULT NULL;
DECLARE res_barcode VARCHAR(30) DEFAULT NULL;
DECLARE res_product_skus VARCHAR(100) DEFAULT NULL;
DECLARE cur CURSOR FOR
SELECT `id`, `category_id`, `text`, `store_id`, `audit_report_id` FROM inventory_audit_scans WHERE audit_report_id = audit_id AND item_status IS NULL ORDER BY id ASC;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET bDone = 1;
OPEN cur;
myloop:loop
FETCH cur INTO current_record_id, current_category_id, current_text, current_store_id, current_audit_id;
IF bDone = 1 THEN
leave myloop;
END IF;
call find_item(current_category_id, current_text, current_store_id, current_audit_id, res_inventory_item_id, res_serial, res_sku, res_barcode, res_product_skus);
IF (res_inventory_item_id IS NOT NULL) THEN
UPDATE inventory_audit_scans SET inventory_item_id = res_inventory_item_id, item_status = 1, updated = NOW() WHERE id = current_record_id;
END IF;
IF (res_inventory_item_id IS NULL) THEN
UPDATE inventory_audit_scans SET inventory_item_id = NULL, item_status = 2, updated = NOW() WHERE id = current_record_id;
END IF;
end loop myloop;
select true;
END
And:
CREATE PROCEDURE `find_item`(
IN in_category_id INT(11),
IN in_text VARCHAR(50),
IN in_store_id INT(11),
IN in_audit_id INT(11),
OUT my_inventory_item_id INT(11),
OUT my_serial VARCHAR(50),
OUT my_sku VARCHAR(20),
OUT my_barcode VARCHAR(30),
OUT my_product_skus VARCHAR(100))
BEGIN
SELECT inventory_item.id AS inventory_item_id,
inventory_item.`serial` AS `serial`,
products.sku AS SKU,
barcodes.barcode AS barcode,
products_skus.sku AS upc
INTO my_inventory_item_id,
my_serial,
my_sku,
my_barcode,
my_product_skus
FROM inventory_item
RIGHT JOIN products
ON products.id = inventory_item.product_id
LEFT JOIN barcodes
ON barcodes.product_id = inventory_item.product_id
LEFT JOIN products_skus
ON products_skus.product_id = inventory_item.product_id
LEFT OUTER JOIN inventory_audit_scans
ON inventory_audit_scans.inventory_item_id = inventory_item.id
AND inventory_audit_scans.audit_report_id = in_audit_id
WHERE (
products.sku LIKE in_text
OR barcodes.barcode LIKE in_text
OR products_skus.sku LIKE in_text
OR inventory_item.serial LIKE in_text )
AND inventory_item.store_id = in_store_id
AND inventory_audit_scans.inventory_item_id IS NULL
AND (
((products.category_id = in_category_id) AND (in_category_id IS NOT NULL))
OR
(((products.category_id = 1) OR (products.category_id = 2)) AND in_category_id IS NULL)
)
ORDER BY inventory_item.id ASC
LIMIT 1;
END