List child terms and posts in the current term

Question

With this code parent term page lists all the child terms and the child term page lists all of the posts in current term, and the single page lists a big flat list of terms(hierarchical).

Now,

The parent term page is fine.

When it's child term page, i want to list all child terms( not showing with this code ) + the posts in current term( showing ).

And when it's single post, i want to list the same as child term page.

        $term = get_queried_object();
        $tax = 'ntp_package_type';
        $parents = $term->parent;
        $term_id = $term->term_id;

        if($parents == 0){
            wp_list_categories( array (
                            'taxonomy'  => 'ntp_package_type',
                            'pad_counts'=> 0,
                            'title_li'  => '',
                            'child_of'  => $term_id,
                            )
            );
        }
        elseif (is_tax($tax, $term->name)){

            $args = array(
                    'post_type' => 'ntp_package',
                    $tax => $term->name,
            );
            $wp_query = new WP_Query($args);
            if( $wp_query->have_posts() ):
            while ( $wp_query->have_posts() ) : $wp_query->the_post();
            echo "<p><a href=\"".get_permalink()."\">".$post->post_title."</a></p>";
            endwhile;
            endif;

        }
        elseif (is_single()){

        }

It is for a sidebar sub nav. is it a right way to do? I'd really appreciate any help.

Answer 1

ok, i don't know how this looks but i've got exactly what i wanted.

<?php
        $term = get_queried_object();
        $tax = 'ntp_package_type';
        $parents = $term->parent;
        $term_id = $term->term_id;

        if($parents == 0 && !is_single()){
        wp_list_categories( array (
                            'taxonomy'  => 'ntp_package_type',
                            'pad_counts'=> 0,
                            'title_li'  => '',
                            'child_of'  => $term_id,
                            )
            );  
        }

        elseif ($parents > 0 && is_tax($tax, $tax->name)){

            $args = array(
                    'post_type' => 'ntp_package',
                    $tax => $term->name,
            );
            echo "<h2>".$term->name."</h2>";

            $wp_query = new WP_Query($args);
            if( $wp_query->have_posts() ):
            while ( $wp_query->have_posts() ) : $wp_query->the_post(); 

            echo "<p><a href=\"".get_permalink()."\">".$post->post_title."</a></p>";
            endwhile;
            endif;
            wp_reset_postdata();

            wp_list_categories( array (
                'taxonomy'  => 'ntp_package_type',
                'pad_counts'=> 0,
                'title_li'  => '',
                'child_of'  => $term->parent,
                'exclude'   => $term_id,
                )
            );
        }

        elseif(is_single()){

        $single = get_queried_object();
        $sing_id = $single->ID;

        $singterm = wp_get_post_terms($sing_id, $tax);
        $singterm_slug = $singterm[0]->slug;
        $singterm_parent = $singterm[0]->parent;
        $singterm_id = $singterm[0]->term_id;

        $args = array(
                'taxonomy'  => $tax,
                'term'      => $singterm_slug,
        );
        ?>

        <h2>
        <a href="<?php echo get_term_link($singterm_slug, $tax); ?>"><?php echo $singterm[0]->name; ?> </a>
        </h2>

        <?php
        $singquery = new WP_Query($args);
        while ($singquery->have_posts()) : $singquery->the_post();
        ?>

        <p>
        <a href="<?php echo get_permalink(); ?>"><?php the_title(); ?></a>
        </p>

        <?php
        endwhile;
        wp_reset_postdata();


        wp_list_categories( array (
            'taxonomy'  => 'ntp_package_type',
            'pad_counts'=> 0,
            'title_li'  => '',
            'child_of'  => $singterm_parent,
            'exclude'   => $singterm_id,
            )
        );  

        }


        ?>