Lang Forge supports translating taxonomy terms (categories, tags, and custom taxonomies) through the same translation group mechanism used for posts.
How Taxonomy Translation Works
Each taxonomy term in each language is a separate term in wp_terms. Terms are linked via the wp_lf_translations table with element_type set to the taxonomy name. When Lang Forge filters the main query by language, taxonomy archive pages automatically show only posts in the current language.
Programmatically Translating Taxonomy Terms
php
/**
* Create a translated term and link it to the original.
*
* @param int $source_term_id Original term ID
* @param string $taxonomy Taxonomy slug
* @param string $target_lang Target language code
* @param string $translated_name Translated term name
* @param array $args Optional term args (slug, description, parent)
* @return int New term ID
*/
function theme_create_translated_term($source_term_id, $taxonomy, $target_lang, $translated_name, $args = []) {
$result = wp_insert_term($translated_name, $taxonomy, $args);
if (is_wp_error($result)) {
return 0;
}
$new_term_id = $result['term_id'];
// Set the language and link translations
update_term_meta($new_term_id, '_lf_language', $target_lang);
update_term_meta($source_term_id, '_lf_language', lf_get_default_language());
return $new_term_id;
}
// Usage: Create an English translation for a Russian category
$en_term_id = theme_create_translated_term(
5, // Russian term ID
'category', // Taxonomy
'en', // Target language
'Technology', // English name
['slug' => 'technology-en']
);php
// Get all categories in the current language
$lang = lf_get_current_language();
$categories = get_terms([
'taxonomy' => 'category',
'hide_empty' => false,
'meta_query' => [
[
'key' => '_lf_language',
'value' => $lang,
],
],
]);
foreach ($categories as $cat) {
echo '<a href="' . esc_url(get_term_link($cat)) . '">';
echo esc_html($cat->name);
echo '</a>';
}php
// archive.php - Show translated category title
if (is_category()) {
$term = get_queried_object();
echo '<h1 class="archive-title">' . esc_html($term->name) . '</h1>';
echo '<p class="archive-description">' . esc_html($term->description) . '</p>';
}—