slug = $slug; $this->fieldRegistry = FieldRegistry::getInstance(); $this->fields = $this->fieldRegistry->getFields($slug, 'user'); if (!empty($this->fields)) { add_action('init', [$this, 'registerFields']); } } public function registerFields():void { if (!empty($this->fields)) { $meta_registry = new Registry($this->fields, $this->slug, 'term'); $meta_registry->registerMetaFields(); } } }