Is there a way to swap cross-sells and up-sells easily?

Question

I'm the guy that does the data entry for our cross-sells and up-sells on our store page. Unfortunately, the marketing person would like all cross-sells and up-sells to be swapped. Is this possible? Failing that, is there a better way to gather product ID's for copy and paste purposes?

Answer 1

Up-sells and cross-sells relations are both kept in the same table: catalog_product_link.
the only difference between the 2 relations it the link_type_id column.
For up-sells the value is 4 and for cross-sells it is 5.

so you can swap them through a single query:

UPDATE 
    `catalog_product_link` 
SET 
    `link_type_id` = 9 - `link_type_id` 
WHERE 
    `link_type_id` IN (4,5)

But back up the table first.