How can i get only parent terms of a taxonomy ?

This is a very popular question asked in many WordPress forums and Toolset Support and as a result, i am going to write a code snippet.

Lets assume, that the depth of taxonomy hierarchy is 3 and is explained by the following example of countries, provinces and states.

• Australia ( Parent)
  • Queensland (Child)
    • Brisbane ( Child of a child)

CODE SNIPPED TO FETCH TOP LEVEL OR PARENT TAXONOMY TERM

Copy and paste the below snipped in your current active theme functions.php file. Then replace $location variable to your current taxonomy name and then use the shortcode [ds-parent] inside the loop view of any post type template.

add_shortcode('ds-parent', 'ds_top_level_terms');
function ds_top_level_terms() {
    $locations = 'test';
    $terms = get_the_terms(get_the_ID(), $locations);
    foreach ($terms as $term) {
        $parent = $term->parent;
        if ( $parent == '0' ) {
            $term_link = get_term_link($term, $locations);
            return $term->name;
        }
    }
}

CODE SNIPPED TO FETCH MID LEVEL TAXONOMY TERMS

• Australia ( Parent)
  • Queensland (Child)
    • Brisbane ( Child of a child)

Here again, replace $location variable to your current taxonomy name and then use the shortcode [ds-middle-terms] inside the loop view of any post type template.

function ds_sort_terms(Array &$cats, Array &$into, $parentId = 0)
{
    foreach ($cats as $i => $cat) {
        if ($cat->parent == $parentId) {
            $into[$cat->term_id] = $cat;
            unset($cats[$i]);
        }
    }
    foreach ($into as $topCat) {
        $topCat->children = array();
        ds_sort_terms($cats, $topCat->children, $topCat->term_id);
    }
}
add_shortcode('ds-middle-terms', 'ds-middle-terms');
function ds-middle-terms( $atts ) {
    extract( shortcode_atts( array(
        'taxonomy' => 'abc'
    ), $atts ) );
  
 
$categories=get_the_terms(get_the_ID(), $taxonomy);

$categoryHierarchy = array();
ds_sort_terms($categories, $categoryHierarchy);
	$amiarray = array_values($categoryHierarchy);
	foreach($amiarray[0]->children as $final){
		return $final->name;
	}    
}

CODE SNIPPED TO GET BOTTOM LEVEL TERMS OF A HIERARCHY

• Australia ( Parent)
  • Queensland (Child)
    • Brisbane ( Child of a child)

In the same way, replace $location variable to your current taxonomy name and then use the shortcode [ds-bottom-level] inside the loop view of any post type template.

add_shortcode('ds-bottom-level', 'ds_bottom_terms');
function ds_bottom_terms() {
   extract( shortcode_atts( array(
        'taxonomy' => 'abc'
    ), $atts ) );
  
 
$categories=get_the_terms(get_the_ID(), $taxonomy);

$categoryHierarchy = array();
sort_terms_hierarchicaly($categories, $categoryHierarchy);
	$amiarray = array_values($categoryHierarchy);
	
	foreach($amiarray[0]->children as $final){
		foreach($final->children as $finall){
			return $finall->name;
		}
		}
}

Now you can use above shortcodes in a post view loop of Toolset and can only show desired term levels.

If you need further assistance, write me down in the comments section or alternatively, you can contact me through my contact page of the website.

Cheers