This document contains examples on how the https://github.com/SemanticMediaWiki/SemanticMediaWiki/blob/master/docs/technical/hooks/hook.store.afterqueryresultlookupcomplete.md "`SMW::Store::AfterQueryResultLookupComplete`" hook can be used.

Match unknown entities

Demonstrates how the SMW::Store::AfterQueryResultLookupComplete hook can be used to add unknown entities (not matched by the QueryEngine) derived from the query description (see #3934).

```php use Hooks; use SMW; use SMW; use SMW; use SMWQueryResult as QueryResult;

Hooks::register( 'SMW::Store::AfterQueryResultLookupComplete', function( Store $store, QueryResult &$queryResult ) {

// Contains matched results from the `QueryEngine`
$results = $queryResult->getResults();
$map = [];

// Build a hash map to quickly perform a search on members of the
// result set
foreach ( $results as $result ) {
    $map[$result->getSha1()] = true;
}

// Inspect the query ...
$query = $queryResult->getQuery();
$description = $query->getDescription();

// #3934
// Check query pattern: [[Foo||Bar||Foobar]]
if ( $description instanceof Disjunction ) {
    $descriptions = $description->getDescriptions();

    foreach ( $descriptions as $desc ) {
        if ( $desc instanceof ValueDescription ) {
            $dataItem = $desc->getDataItem();
            $sha1 = $dataItem->getSha1();

            // Already part of the result set?
            if ( isset( $map[$sha1]) ) {
                continue;
            }

            // Extend the result set!!, unordered
            $results[] = $dataItem;
            $map[$sha1] = true;
        }
    }
}

// Build a new query result object
$queryResult = new QueryResult(
    $queryResult->getPrintRequests(),
    $query,
    $results,
    $store,
    $queryResult->hasFurtherResults()
);

} );

```

Match unknown entities

See also