Permalinks for WooCommerce Categories and Subcategories

Question

I found this solution on stackexchanges to setup the permalink structure like this

Product 1: /shop/category/subcategory/product1/
Product 2: /shop/category/product2/

The solution with this code in the function.php works so far for the product and subcategories, they all have now the base url "shop". But parent categories are displaying an 404 page now.

 function wpse_291143_generate_taxonomy_rewrite_rules( $wp_rewrite ) {

    global $wp_rewrite;
    $base = "shop";

    $rules = array();
    $terms = get_terms( array( 'taxonomy' => 'product_cat', 'hide_empty' => false ));

    foreach($terms as $term) {
        $term_children = get_terms( array(
            'taxonomy' => 'product_cat',
            'parent' => intval($term->term_id),
            'hide_empty' => false
            )
        );
        if($term_children) {
            foreach ( $term_children as $term_child ) {
                $rules[$base . '/' . $term->slug . '/' . $term_child->slug . '/?$'] = 'index.php?product_cat=' . $term_child->slug;
            }
        }
    }

    $wp_rewrite->rules = $rules + $wp_rewrite->rules;
    return $wp_rewrite->rules;
}

add_action('generate_rewrite_rules', 'wpse_291143_generate_taxonomy_rewrite_rules');

How can i get this code worked that it also works with the parent categories?

category base: shop

Custom base url /shop/%product_cat%/

Answer 1

Having the same problem finally found the solution here: https://wordpress.org/support/topic/same-permalink-for-shop-category-custom-base-with-child-cats/

add_filter( 'rewrite_rules_array', function( $rules ) {
    $new_rules = array();
    $terms = get_terms( array(
        'taxonomy'   => 'product_cat',
        'post_type'  => 'product',
        'hide_empty' => false,
    ));
    if ( $terms && ! is_wp_error( $terms ) ) {
        $siteurl = esc_url( home_url( '/' ) );
        foreach ( $terms as $term ) {
            $term_slug = $term->slug;
            $baseterm = str_replace( $siteurl, '', get_term_link( $term->term_id, 'product_cat' ) );
            // rules for a specific category
            $new_rules[$baseterm .'?$'] = 'index.php?product_cat=' . $term_slug;
            // rules for a category pagination
            $new_rules[$baseterm . '/page/([0-9]{1,})/?$' ] = 'index.php?product_cat=' . $term_slug . '&paged=$matches[1]';
            $new_rules[$baseterm.'(?:feed/)?(feed|rdf|rss|rss2|atom)/?$'] = 'index.php?product_cat=' . $term_slug . '&feed=$matches[1]';
        }
    }

    return $new_rules + $rules;
} );

/**
 * Flush rewrite rules when create new term
 * need for a new product category rewrite rules
 */
function imp_create_term() {
    flush_rewrite_rules(false);;
}
add_action( 'create_term', 'imp_create_term' );