/**
* Count number of nodes for a term and its children.
*
* @param int $tid
* Id of the tadonomy term to count nodes in.
* @return int
* Returns the count of the nodes in the given term.
*/
public static function taxonomyTermCountNodes($tid)
{
static $count;
if (!isset($count) || !isset($count[$tid])) {
$query = db_select('node', 'n')->fields('n', array('nid'))->addTag('node_access');
$query->join('taxonomy_index', 'ti', 'n.nid = ti.nid');
$query->join('node_field_data', 'd', 'd.nid = n.nid');
$query->condition('n.type', 'faq')->condition('d.status', 1)->condition('ti.tid', $tid);
$count[$tid] = $query->countQuery()->execute()->fetchField();
}
$children_count = 0;
foreach (FaqHelper::taxonomyTermChildren($tid) as $child_term) {
$children_count += FaqHelper::taxonomyTermCountNodes($child_term);
}
return $count[$tid] + $children_count;
}