I was pretty sure of this, but the answer is—at least for now—a definitive no. There isn’t an API call for it. To double-check, I asked core developer Andrew Nacin about this on Twitter. His response: term_taxonomy_id is, for the moment, essentially private. You should likely never have it to use it. It might be … Read more
We can filter the generated SQL query through the terms_clauses filter before the SQL query is executed. What we will be doing is to introduce a new parameter called wpse_parents which will accept an array of parent term ID’s to get children from. Note, this new parameter works exactly the same as the build-in parameter, … Read more
The wp_list_categories() function calls the get_categories() function, that’s a wrapper for the get_terms() function, that creates an instance of the WP_Term_Query class. It doesn’t look like it supports ordering by term order. If the plugin uses the term_order column in the wp_terms table, then you can try to add a support for it’s ordering, via … Read more
You can get terms, from multiple slugs, with the slug argument: $exclude = get_terms ( [ ‘slug’ => [ ‘president’, ‘vice-president’, ‘admin’, ‘rnd’ ], ‘taxonomy’ => $cat_type, ‘fields’ => ‘ids’, ] ); where we use the fields argument to return only term ids.
the_ID() print the post ID. You need to use the get_the_ID() which return the post ID. Example: foreach (get_the_terms(get_the_ID(), ‘taxonomy’) as $cat) { echo $cat->name; } Always remember the naming convention of WordPress for template tags. the which mean to print get which mean to return in most of the cases.
It is because terms.slug and terms.name are both unique indexes with the MySQL table structure. Unique Packed Column Cardinality Collation PRIMARY BTREE Yes No term_id 13 A slug BTREE Yes No slug 13 A name BTREE No No name 13 A WordPress uses canonical redirects which mainly rely on a viable single posts.post_name or terms.slug … Read more
A user contributed a note in the codex saying the only difference is that get_the_terms use cached data Yes, get_the_terms relies on the object cache. This gives a scaling boost and a speed boost. If you have an object cache enabled this boost increases speed dramatically. and I already know that wp_get_post_terms let you retrieve … Read more
get_term_children() only outputs the term IDs, and you later get details for each term using get_term_by(). You can combine these queries in one using get_terms() with the child_of argument: get_terms( $taxonomyName, array( ‘child_of’ => $termID ) ); By default this sorts by name. However, it is possible that the child_of argument undoes the sorting. In … Read more
If you already have the term, like the term is an actual object you could use $term->parent. Otherwise you can do something like this: $term = get_term($id, ‘YOUR_TAXONOMY_HERE’); $termParent = ($term->parent == 0) ? $term : get_term($term->parent, ‘YOUR_TAXONOMY_HERE’); The 2nd portion of this is a shorthand if-else, IF it doesn’t have a parent, then we … Read more
Try something like this: by ID function woocommerce_subcats_from_parentcat_by_ID($parent_cat_ID) { $args = array( ‘hierarchical’ => 1, ‘show_option_none’ => ”, ‘hide_empty’ => 0, ‘parent’ => $parent_cat_ID, ‘taxonomy’ => ‘product_cat’ ); $subcats = get_categories($args); echo ‘<ul class=”wooc_sclist”>’; foreach ($subcats as $sc) { $link = get_term_link( $sc->slug, $sc->taxonomy ); echo ‘<li><a href=”‘. $link .'”>’.$sc->name.'</a></li>’; } echo ‘</ul>’; } by … Read more