Ojs\CoreBundle\Service\Search\NativeQueryGenerator::tagQueryGenerator PHP Метод

    private function tagQueryGenerator($section)
    {
        // if section is not have tags field return false
        if (!in_array($section, array_keys($this->getTagQueryParams()))) {
            return false;
        }
        $sectionParams = $this->getSearchParamsBag()[$section];
        $sectionTagParams = $this->getTagQueryParams()[$section];
        $from = ($this->getPage() - 1) * $this->getSearchSize();
        $size = $this->getSearchSize();
        $queryArray['from'] = $from;
        $queryArray['size'] = $size;
        // get tag
        $tagQuery = trim(preg_replace('/tag:/', '', $this->query));
        /**
         * foreach tag search field add should
         * term query with specified field
         */
        foreach ($sectionTagParams as $tagField) {
            $queryArray['query']['filtered']['query']['bool']['should'][] = ['term' => [$section . '.' . $tagField => strtolower($tagQuery)]];
        }
        // look basicQueryGenerator() function
        if (!empty($this->requestAggsBag)) {
            foreach ($this->requestAggsBag as $requestAggKey => $requestAgg) {
                if (!in_array($requestAggKey, $sectionParams['aggs'])) {
                    continue;
                }
                foreach ($requestAgg as $aggValue) {
                    $queryArray['query']['filtered']['filter']['bool']['must'][] = ['term' => [$section . '.' . $requestAggKey => $aggValue]];
                }
            }
        }
        // look basicQueryGenerator() function
        if ($this->setupAggs) {
            foreach ($sectionParams['aggs'] as $agg) {
                $queryArray['aggs'][$agg] = ['terms' => ['field' => $section . '.' . $agg]];
            }
        }
        return $queryArray;
    }