Hide WooCommerce Product Categories

hide-prod-cat-woo.php

<?php   //<~ dont add me into functions.php 

add_action( 'woocommerce_product_query', 'prefix_custom_pre_get_posts_query' );
/**
 * Hide Product Cateories from targetted pages in WooCommerce
 * @link https://gist.github.com/stuartduff/bd149e81d80291a16d4d3968e68eb9f8#file-wc-exclude-product-category-from-shop-page-php
 *
 */
function prefix_custom_pre_get_posts_query( $q ) {
	
	if( is_shop() || is_page('awards') ) { // set conditions here

	    $tax_query = (array) $q->get( 'tax_query' );
	
	    $tax_query[] = array(
	           'taxonomy' => 'product_cat',
	           'field'    => 'slug',
	           'terms'    => array( 'cat1', 'cat2' ), // set product categories here
	           'operator' => 'NOT IN'
	    );
	
	
	    $q->set( 'tax_query', $tax_query );
	}
}

Hello my friend

the code you provided doesn't work

can you check if it works

Can confirm it does indeed work ...

Hi, i'll have two pages displaying products, one /catalog/ (the shop page) and one /pre-orders/ (for preorders, ofc).
I've added "preorders" as a category alongside the others (music genres), and tried the following:

`add_action( 'woocommerce_product_query', 'prefix_custom_pre_get_posts_query' );

function prefix_custom_pre_get_posts_query( $q ) {

if( is_shop() || is_page('catalog') ) { // set conditions here

    $tax_query = (array) $q->get( 'tax_query' );

    $tax_query[] = array(
           'taxonomy' => 'product_cat',
           'field'    => 'slug',
           'terms'    => array( 'preorders' ), // set product categories here
           'operator' => 'NOT IN'
    );


    $q->set( 'tax_query', $tax_query );
}
if( is_page('preorders') ) { // set conditions here

    $tax_query = (array) $q->get( 'tax_query' );

    $tax_query[] = array(
           'taxonomy' => 'product_cat',
           'field'    => 'slug',
           'terms'    => array( 'breakbeat', 'downtempo', 'ambient', 'electro', 'house', 'acid-house', 'deep-house', 'tech-house', 'uk-garage', 'minimal', 'micro-house', 'techno', 'acid-techno', 'deep-techno', 'dub-techno', 'minimal-techno', 'new-beat', 'progressive' ), // set product categories here
           'operator' => 'NOT IN'
    );


    $q->set( 'tax_query', $tax_query );
}

}`

But it doesn't work. How can i prevent the items belonging to the "preorders" category to display on the /catalog/ page while preventing everything BUT items belonging to the preorders category to display in the /preorders/ page?