materio-d9/web/modules/custom/materio_sapi/materio_sapi.module

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<?php
/**
* @file
* Contains materio_sapi.module.
*/
use Drupal\Core\Routing\RouteMatchInterface;
use Solarium\QueryType\Select\Query\Query;
use Drupal\search_api\Query\QueryInterface;
/**
* Implements hook_help().
*/
function materio_sapi_help($route_name, RouteMatchInterface $route_match) {
switch ($route_name) {
// Main module help for the materio_sapi module.
case 'help.page.materio_sapi':
$output = '';
$output .= '<h3>' . t('About') . '</h3>';
$output .= '<p>' . t('Search Api Materio module') . '</p>';
return $output;
default:
}
}
/**
* Implements hook_search_api_solr_query_alter();
*/
function materio_sapi_search_api_solr_query_alter(Query $solarium_query, QueryInterface $query) {
if ($termid = (int)$query->getOption('termid')) {
// get solarium fileds name
$index = $query->getIndex();
$solrFields = $index->getServerInstance()
->getBackend()
->getSolrFieldNames($index);
// tag_tid"itm_tag_tid"
// thesaurus_tid"itm_thesaurus_tid"
$tag_fname = $solrFields['tag_tid'];
$thes_fname = $solrFields['thesaurus_tid'];
// $solarium_query->addParam('bf', "recip(abs(ms(NOW,{$solrField})),3.16e-11,10,0.1)");
// $bfparam = "if(or(gt(termfreq({$tag_fname},{$termid}),0),gt(termfreq({$thes_fname},{$termid}),0)),^21,0)";
$bfparam = "if(or(exists(query({$tag_fname}:{$termid})),exists(query({$thes_fname}:{$termid}))),^21,0)";
// boost=if(or(exists(query(itm_tag_tid:396)),exists(query(itm_thesaurus_tid:396))),^21,0 )
$solarium_query->addParam('boost', $bfparam);
// $solarium_query->addParam('debugQuery', 'on');
}
}