/**
  * @param string $searchQuery
  * @param array $sort
  * @param int $offset
  * @param int $limit
  * @return array
  */
 public function findInIndex($searchQuery = "", $sort = [], $offset = 0, $limit = 0)
 {
     $client = $this->solr_client->getClient();
     $query = $client->createSelect();
     $query->setQuery($searchQuery);
     if (!empty($sort)) {
         foreach ($sort as $key => $value) {
             $query->addSort($key, $value);
         }
     }
     if (!empty($limit)) {
         $query->setRows($limit);
     }
     if (!empty($offset)) {
         $query->setStart($offset);
     }
     $resultset = $client->select($query);
     $result = [];
     /** @var Document $document */
     foreach ($resultset as $document) {
         $result[] = ArrayHelper::createArrayFromDocument($document);
     }
     return $result;
 }