Show only the sub-categories (and their content) of the current custom taxonomy with 'taxonomy.php'

Question

So, I need to show a page with the sub-categories of the current custom taxonomy, with their respective posts inside.

What I need is, when I click on a sub-cat link, I get something like:

'Tipos' (custom taxonomy)
    - Auto (first sub-cat)
        - Sub-Item 1 (first sub-sub-cat)
            - Post 1
            - Post 2
        - Sub-Item 2 (second sub-sub-cat)
            - Post 1
            - Post 2

I have another sub-cats, but I dont wanna see them, since I clicked to see the sub-sub-cats inside the sub-cat 'auto'.

The name of the Custom Post Type is 'Produtos'

The name of the custom taxonomy is 'Tipos'

The page I'm using is 'taxonomy-tipos.php

I know I need to:

• Get the current custom taxonomy;
• Make a loop that shows a list of the sub-categories of that custom taxonomy;
• Inside the list of sub-categories, show the posts inside each sub-category;

I understand about WordPress hierarchy, but the problem is that I need to automatically show those sub-categories based on the taxonomy, and I'm not being able to achieve that.

With my code, I get all the categories inside the custom taxonomy. I wanna get only the ones inside the current one.

This is the code I tried:

Removed the code so it wont confuse anyone

Can you guys give me a light? Thanks.

PROBLEM SOLVED. FINAL CODE (WORKING):

$term = get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) );
echo $term->name;
$queried_object = get_queried_object();
$term_id = get_queried_object()->term_id;
$taxonomyName = "tipos";
$termchildren = get_term_children( $term_id, $taxonomyName );
if ($termchildren != false){
    foreach ($termchildren as $child) {
        $term2 = get_term_by( 'id', $child, $taxonomyName );
        echo $term2->name; 
        $my_query = new WP_Query( array(
            'post_type' => 'produtos',
            'posts_per_page' => -1,
            'orderby' => 'menu_order',
            'order' => 'DESC',
            'tax_query' => array(
                array(
                'taxonomy' => $taxonomyName,
                'field' => 'slug',
                'terms' => $term2->slug,
                )
            ),
        ));
        while ($my_query->have_posts()) : $my_query->the_post();
        //content you want to show
        endwhile; 
        wp_reset_postdata();
    }
} else{
    $my_query2 = new WP_Query( array(
        'post_type' => 'produtos',
        'posts_per_page' => -1,
        'orderby' => 'menu_order',
        'order' => 'DESC',
        'tax_query' => array(
            array(
            'taxonomy' => $taxonomyName,
            'field' => 'slug',
            'terms' => $term->slug,
            )
         ),
    ));
    while ($my_query2->have_posts()) : $my_query2->the_post();
    //content you want to show
    endwhile; 
    wp_reset_postdata();
}

Answer 1

I think you can easily achieve that if you understand WordPress template hierarchy.

Looking at the template hierarchy diagram, and assuming you have categories and sub-categories, then you can achieve what you want in multiple ways.

Suggestion 1

1. Use category.php to display the posts of any category, including sub-categories.

2. also in category.php add a condition at the top to detect if it is a "parent" category. If so, then display the sub-categories of that parent category.

Suggestion 2

1. Use category.php to display the posts of any category, including sub-categories.

2. Use category-$slug.php for the parent category, and use it to display the sub categories for that parent.

I think suggestion 2 would be OK if you have one, or two parent categories. Because every time you add a new parent category, you have to create a new category-$slug.php file for it. So if you have many parent categories to be created, then use suggestion 1.

Also, you can use the same solution for custom taxonomies as well, but use the hierarchy diagram to understand taxonomy files (i.e., use taxonomy.php, taxonomy-$taxonomy.php and taxonomy-$taxonomy-$term.php depending on your needs).

Answer 2

PROBLEM SOLVED. FINAL CODE (WORKING):

$term = get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) );
echo $term->name;
$queried_object = get_queried_object();
$term_id = get_queried_object()->term_id;
$taxonomyName = "tipos";
$termchildren = get_term_children( $term_id, $taxonomyName );
if ($termchildren != false){
    foreach ($termchildren as $child) {
        $term2 = get_term_by( 'id', $child, $taxonomyName );
        echo $term2->name; 
        $my_query = new WP_Query( array(
            'post_type' => 'produtos',
            'posts_per_page' => -1,
            'orderby' => 'menu_order',
            'order' => 'DESC',
            'tax_query' => array(
                array(
                'taxonomy' => $taxonomyName,
                'field' => 'slug',
                'terms' => $term2->slug,
                )
            ),
        ));
        while ($my_query->have_posts()) : $my_query->the_post();
        //content you want to show
        endwhile; 
        wp_reset_postdata();
    }
} else{
    $my_query2 = new WP_Query( array(
        'post_type' => 'produtos',
        'posts_per_page' => -1,
        'orderby' => 'menu_order',
        'order' => 'DESC',
        'tax_query' => array(
            array(
            'taxonomy' => $taxonomyName,
            'field' => 'slug',
            'terms' => $term->slug,
            )
         ),
    ));
    while ($my_query2->have_posts()) : $my_query2->the_post();
    //content you want to show
    endwhile; 
    wp_reset_postdata();
}