'Post Object' field, exclusion filter based on taxonomy?

• inspiredearth

• October 3, 2022 at 11:24 pm

Hi folks …

I have set up a custom field using the “Post Object” type. It’s only used in the back-end, on the post editor for the CPT in question.

It is referencing the products in database (from Woocommerce). I have set up a filter to only include those items with publish post_status. For that I set up the following function:

function cpt_review_product_filter( $args ) {
	$args['post_status'] = array( 'publish' );
	return $args;
}
add_filter( 'acf/fields/post_object/query/name=review_product', 'cpt_review_product_filter' );

That worked fine. What I’d like to add to this filter is to exclude items that are in a specific category.

I tried adding the following two (separately) lines, but neither worked. So I am obviously over-looking something.

    $args['term_id'] != '562' ;
    $args['product_cat'] != 'THE-CATEGORY-TO-EXCLUDE';

My question …
How can I filter out results that have a specific category assigned to them? (keeping in mind, these items are likely in numerous categories, but so long as one of their categories has ID 562 (in my case), I want to exclude it.

Thanks very much …

Jonathan

• John Huebner

• October 4, 2022 at 9:26 am

You need to add a tax_query as explained in the WP_Query() docs.

• inspiredearth

• October 5, 2022 at 3:30 am

Thanks John. That helps.

I’ve figured out how to get that work in the positive (e.g. items IS in array).

Would you please give a tip on how to make that a negative? As in, I need to NOT include the item if it’s in the array.

Cheers,

Jonathan

• inspiredearth

• October 5, 2022 at 4:03 am

Solved. Simply had to add an 'operator' ⇒ 'NOT IN', to the array look-up.
Done.
Thank you.