Передать значения полей категории блога материалу - Joomla 3.x: Общие вопросы

JLoader::register('FieldsHelper', JPATH_ADMINISTRATOR . '/components/com_fields/helpers/fields.php');

$category = new \stdClass;
$category->id = $this->item->catid;

$category->jcfields = FieldsHelper::getFields('com_content.categories', $category, true);

$category = new \stdClass;
$category->id = $this->item->catid;
$category->params = new JRegistry;

$dispatcher->trigger('onContentPrepare', array ('com_content.categories', &$category, &$category->params, 0));