public function paginate($limit = 10, $last_id = null)
{
    $q = $this->newQuery();

    $q->select(['id','pagetitle','какие-то поля']);

    $where = ['published' => 1, 'deleted' => 0, 'parent' => $this->parent];

    if ($last_id) {
        $where['id:<'] = $last_id;
    }

    $q->where($where);

    $q->limit($limit);

    $q->sortby('id', 'DESC');

    return $q->fetch(true);
}