/**
* Alter a search query before it gets executed.
*
* The hook is invoked after all enabled processors have preprocessed the query.
*
* @param \Drupal\search_api\Query\QueryInterface $query
* The query that will be executed.
*/
function hook_search_api_query_alter(\Drupal\search_api\Query\QueryInterface &$query)
{
// Do not run for queries with a certain tag.
if ($query->hasTag('example_tag')) {
return;
}
// Otherwise, exclude the node with ID 10 from the search results.
$fields = $query->getIndex()->getFields();
foreach ($query->getIndex()->getDatasources() as $datasource_id => $datasource) {
if ($datasource->getEntityTypeId() == 'node') {
if (isset($fields['nid'])) {
$query->addCondition('nid', 10, '<>');
}
}
}
}
