Taxonomy Filter could not get all results

[gianghl1983]

Hi,

I used Taxonomy Filter for my search. On this page: https://raovat24s.vn/dien-tu-dien-may , there are more than 10 posts. However, by select ĐIỆN TỬ – ĐIỆN MÁY from select box get only 1 result.

ĐIỆN TỬ – ĐIỆN MÁY 1 a parent category = 1 post assigned to it, but there are around 9 other post assigned to its children category.

It is a very long list if I select all children category for drop down filter (around 100). So is there any way by selecting parent category the result cover all its children’s posts?

Thanks!

[Ernest Marcinko]

Hi!

Well, there is no option for that, because if the parent categoriy is not assigned to the child, then it is not considered as part of it. There might be however a solution, by using a custom code.

Try adding this custom code to the functions.php in your theme/child theme directory. Before editing, please make sure to have a full site back-up just in case!

/**
 * Scenario: Drop-down mode taxonomy filter, posts in child categories, not included in parent categories
 * This snippet will include the child categories, when the parent is selected, and changes the logic accordingly
 * 
 * @param $args
 * @return mixed
 */
add_filter('asp_query_args', 'asp_tax_filter_include_child_terms', 10, 1);
function asp_tax_filter_include_child_terms( $args ) {
	$taxonomy = 'category'; // Change this to the taxonomy name

	// ---- Taxonomy term replacement ----
	foreach ($args['post_tax_filter'] as $k=>&$item) {
		if ( $item['taxonomy'] != $taxonomy ) continue;
		$children = array();
		if ( count($item['include']) > 0 ) {
			foreach($item['include'] as $tid)
				$children = array_merge($children, get_term_children( $tid, $taxonomy ));
		}
		$item['include'] = array_merge($item['include'], $children);
		$item['logic'] = 'or';
	}
	return $args;
}

[gianghl1983]

Thank you!

It works perfectly.

Have a nice day! 🙂

[Author]

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