Bolt\Storage\Query\SearchQueryResultset::add PHP Method

    public function add($results, $type = null, $scores = [])
    {
        if ($type !== null) {
            $this->results[$type] = $results;
            $this->scores[$type] = $scores;
            $this->sortSingle($type);
        } else {
            $this->results = array_merge($this->results, $results);
        }
        $this->append(new ArrayIterator($results));
    }

 /**
  * @param ContentQueryParser $contentQuery
  *
  * @return SearchQueryResultset
  */
 public function __invoke(ContentQueryParser $contentQuery)
 {
     $set = new SearchQueryResultset();
     foreach ($contentQuery->getContentTypes() as $contenttype) {
         $query = $contentQuery->getService('search');
         $repo = $contentQuery->getEntityManager()->getRepository($contenttype);
         $query->setQueryBuilder($repo->createQueryBuilder($contenttype));
         $query->setContentType($contenttype);
         $searchParam = $contentQuery->getParameter('filter');
         $query->setParameters($contentQuery->getParameters());
         $query->setSearch($searchParam);
         $contentQuery->runDirectives($query);
         $result = $repo->queryWith($query);
         if ($result) {
             if (count($result) > 0) {
                 $weighter = $contentQuery->getService('search_weighter');
                 $weighter->setContentType($contenttype);
                 $weighter->setResults($result);
                 $weighter->setSearchWords($query->getSearchWords());
                 $scores = $weighter->weight();
                 $set->add($result, $contenttype, $scores);
             } else {
                 $set->add($result, $contenttype);
             }
         }
     }
     if ($query->getSingleFetchMode()) {
         return $set->current();
     } else {
         return $set;
     }
 }