Woocommerce从商店页面中排除某些类别

Question

Trying to exclude a single category from my WooCommerce's Shop Page

I was using this code but it would break my sites's attributes filter links:

add_action( 'pre_get_posts', 'custom_pre_get_posts_query' );

function custom_pre_get_posts_query( $q ) {

    if ( ! $q->is_main_query() ) return;
    if ( ! $q->is_post_type_archive() ) return;

    if ( ! is_admin() && is_shop() ) {

        $q->set( 'tax_query', array(array(
           'taxonomy' => 'product_cat',
           'field' => 'slug',
           'terms' => array( 'samples' ), 
           'operator' => 'NOT IN'
        )));

     }

     remove_action( 'pre_get_posts', 'custom_pre_get_posts_query' );

}

Answer 1

This solution excluded the category from Shop Page. But the problem is, the Category archive page for the excluded category says no products available.

I've E-Books category which I don't want to enlisted on Shop Page. I have created a separate menu item for E-Books, which is where I want to list all books from the E-Books category.

How to achieve this?

Update

I added if (!$q->is_main_query() || !is_shop()) return; to the action hook and it resolved my above mentioned problem. This line excludes the category only from Shop page, however all products are listed good when the excluded category is accessed directly from menu (category page).

function custom_pre_get_posts_query( $q ) {

if (!$q->is_main_query() || !is_shop()) return;

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

$tax_query[] = array(
       'taxonomy' => 'product_cat',
       'field' => 'slug',
       'terms' => array( 'ebooks' ),
       'operator' => 'NOT IN'
);


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

}

add_action( 'woocommerce_product_query', 'custom_pre_get_posts_query' );