Custom nested taxonomies pagination problem [closed]

Question

I'm experiencing a problem with the pagination of my custom taxonomies which lead to a 404 instead of the taxonomy-product_brand.php template

Here is some code:

add_action('init','init_product_brand_taxonomy');
function init_product_brand_taxonomy() {
    // Labels
    $labels = array(
        'name' => __('Product brands','framework'),
        'singular_name' => __('Product brand','framework'),
        'search_items' => __('Search a brand','framework'),
        'all_items' => __('All brands','framework'),
        'parent_item' => __('Parent brand','framework'),
        'parent_item_colon' => __('Parent brand:','framework'),
        'edit_item' => __('Edit brand','framework'), 
        'update_item' => __('Update brand','framework'),
        'add_new_item' => __('Add new brand','framework'),
        'new_item_name' => __('New brand','framework'),
        'menu_name' => __('Brands','framework')
    );
    // Arguments
    $args =  array(
        'hierarchical' => true,
        'labels' => $labels,
        'show_ui' => true,
        'query_var' => true,
        'rewrite' => array('slug' => 'products/%product_category%')
    );
    // Register taxonomy
    register_taxonomy('product_brand',array('product'),$args);
}

and the function to replace the %product_category%:

add_filter('term_link', 'filter_term_link', 10, 2);
function filter_term_link($link, $category) {
    if ($cats = @get_the_terms($post->ID, 'product_brand'))
        $link = str_replace('%product_brand%', array_pop($cats)->slug, $link);

    if ($cats = @get_the_terms($post->ID, 'product_category'))
        $link = str_replace('%product_category%', array_pop($cats)->slug, $link);

    return $link;
}

The point is that when I'm trying to add the pagination (posts_per_page=5 for instance), wordpress throws a 404 page instead of the right template:

this page: /products/kits-batterie/agean is working

this page: /products/kits-batterie/agean/page/2 is not working

Have you got any idea ?

Thanks!

** UPDATE **

Interesting thing, I've got another taxonomy on which I thought the pagination what working because it's not nested in another taxonomy. I figured that it was working ONLY if there is no dash in the taxonomy name

For instance: /brands/abcde/page/2 is working when /brands/abc-de/page/2 is going to the 404 template.

Answer 1

In your taxonomy-product_brand.php do you have paged in your query?

example:

$query = new WP_Query( 'paged=' . get_query_var( 'page' ) );

Without that it will not display pages for your custom taxonomie.