Btukfyl

I want a simple overview of categories and their subcategories. When clicking the parent category only subcategories of that category are shown. But I also want the subcategories to show when in a different subcategory of the same parent.
I realise the queried_object_id(); changes when clicking on the subcategory. But how do I let the query know?

My following code:

    <ul>

<?php

        $parentid = get_queried_object_id();

  $taxonomy     = 'product_cat';

  $orderby      = 'name';  

  $show_count   = 0;      // 1 for yes, 0 for no

  $pad_counts   = 0;      // 1 for yes, 0 for no

  $hierarchical = 1;      // 1 for yes, 0 for no  

  $title        = '';  

  $empty        = 0;



  $args = array(

         'taxonomy'     => $taxonomy,

         'orderby'      => $orderby,

         'show_count'   => $show_count,

         'pad_counts'   => $pad_counts,

         'hierarchical' => $hierarchical,

         'title_li'     => $title,

         'hide_empty'   => $empty

  );

 $all_categories = get_categories( $args );

 foreach ($all_categories as $cat) {

    if($cat->category_parent == 0) {

        $category_id = $cat->term_id;

                                //echo $category_id;

        echo '<li><a href="'. get_term_link($cat->slug, 'product_cat') .'">'. $cat->name .' - '. $category_id .'</a></li>';

//echo $parentid;

if($parentid == $category_id) {

                                //$cat = get_queried_object();

        $args2 = array(

                'taxonomy'     => $taxonomy,

                'child_of'     => 0,

                'parent'       => $category_id,

                'orderby'      => $orderby,

                'show_count'   => $show_count,

                'pad_counts'   => $pad_counts,

                'hierarchical' => $hierarchical,

                'title_li'     => $title,

                'hide_empty'   => $empty

        );



        $sub_cats = get_categories( $args2 );



        if($sub_cats) {                     

                                    echo '<ul>';

            foreach($sub_cats as $sub_category) {

                                                    //echo $parentid;



               echo '<li><a href="'. get_term_link($sub_category->slug, 'product_cat') .'">'. $sub_category->name .' - '. $sub_category->term_id .'</a></li>';

                                                                //echo  $sub_category->name ;

            }

                                            echo '</ul>';

        }

}                               

    }       

}

?>

</ul>

I changed the code based on getting $parentid2 = get_queried_object();

Note: this code is placed in /woocommerce/archive-product.php

and I added an elseif statement with different args.

Maybe a little bit too much but it works

    <ul>

    <?php

      $parentid2 = get_queried_object(); 

      $parentid = get_queried_object_id();

      $taxonomy     = 'product_cat';

      $orderby      = 'name';  

      $show_count   = 0;      // 1 for yes, 0 for no

      $pad_counts   = 0;      // 1 for yes, 0 for no

      $hierarchical = 1;      // 1 for yes, 0 for no  

      $title        = '';  

      $empty        = 0;



      $args = array(

             'taxonomy'     => $taxonomy,

             'orderby'      => $orderby,

             'show_count'   => $show_count,

             'pad_counts'   => $pad_counts,

             'hierarchical' => $hierarchical,

             'title_li'     => $title,

             'hide_empty'   => $empty

      );

     $all_categories = get_categories( $args );

     foreach ($all_categories as $cat) {

        if($cat->category_parent == 0) {

            $category_id = $cat->term_id;

            echo '<li><a href="'. get_term_link($cat->slug, 'product_cat') .'">'. $cat->name .'</a></li>';



    if($parentid == $category_id) {

            $args2 = array(

                    'taxonomy'     => $taxonomy,

                    'child_of'     => 0,

                    'parent'       => $category_id,

                    'orderby'      => $orderby,

                    'show_count'   => $show_count,

                    'pad_counts'   => $pad_counts,

                    'hierarchical' => $hierarchical,

                    'title_li'     => $title,

                    'hide_empty'   => $empty

            );



            $sub_cats = get_categories( $args2 );



            if($sub_cats) {                     

                                        echo '<ul>';

                foreach($sub_cats as $sub_category) {

                                                        //echo $parentid;



                   echo '<li><a href="'. get_term_link($sub_category->slug, 'product_cat') .'">'. $sub_category->name .'</a></li>';

                                                                    //echo  $sub_category->name ;

                }

                                                echo '</ul>';

            }

    }



    elseif($parentid2->parent == $category_id) {

            $args2 = array(

                    'taxonomy'     => $taxonomy,

                    'child_of'     => 0,

                    'parent'       => $parentid2->parent,

                    'orderby'      => $orderby,

                    'show_count'   => $show_count,

                    'pad_counts'   => $pad_counts,

                    'hierarchical' => $hierarchical,

                    'title_li'     => $title,

                    'hide_empty'   => $empty

            );



            $sub_cats = get_categories( $args2 );



            if($sub_cats) {                     

                                        echo '<ul>';

                foreach($sub_cats as $sub_category) {

                                                        //echo $parentid;



                   echo '<li><a href="'. get_term_link($sub_category->slug, 'product_cat') .'">'. $sub_category->name .'</a></li>';

                                                                    //echo  $sub_category->name ;

                }

                                                echo '</ul>';

            }

    }







        }       

    }

    ?>

    </ul>

Why you dont simply use the woocommerce Widget for product categories with Wordpress the_widget() function, as you will get everything this way:

 the_widget( 'WC_Widget_Product_Categories', array( 'hide_empty' => false, 'hierarchical' => true, 'show_children_only' => true )  );

It will display a hierarchical vertical list of linked product categories.

With the_widget() function you can with:

- the 2nd parameter argument make changes in the Query

- the 3rd parameter argument make changes in the html output

you can exclude current category/term by

'exclude' => $catID

in the arguments.