/**
* Process completion search results.
* Resolves the titles and rescores.
* @param SearchSuggestionSet $suggestions
* @return SearchSuggestionSet
*/
protected function processCompletionResults($search, SearchSuggestionSet $suggestions)
{
if ($suggestions->getSize() == 0) {
// If we don't have anything, don't bother
return $suggestions;
}
$search = trim($search);
// preload the titles with LinkBatch
$titles = $suggestions->map(function (SearchSuggestion $sugg) {
return $sugg->getSuggestedTitle();
});
$lb = new LinkBatch($titles);
$lb->setCaller(__METHOD__);
$lb->execute();
$results = $suggestions->map(function (SearchSuggestion $sugg) {
return $sugg->getSuggestedTitle()->getPrefixedText();
});
// Rescore results with an exact title match
$rescorer = new SearchExactMatchRescorer();
$rescoredResults = $rescorer->rescore($search, $this->namespaces, $results, $this->limit);
if (count($rescoredResults) > 0) {
$found = array_search($rescoredResults[0], $results);
if ($found === false) {
// If the first result is not in the previous array it
// means that we found a new exact match
$exactMatch = SearchSuggestion::fromTitle(0, Title::newFromText($rescoredResults[0]));
$suggestions->prepend($exactMatch);
$suggestions->shrink($this->limit);
} else {
// if the first result is not the same we need to rescore
if ($found > 0) {
$suggestions->rescore($found);
}
}
}
return $suggestions;
}
/**
* Process completion search results.
* Resolves the titles and rescores.
* @param SearchSuggestionSet $suggestions
* @return SearchSuggestionSet
*/
protected function processCompletionResults($search, SearchSuggestionSet $suggestions)
{
$search = trim($search);
// preload the titles with LinkBatch
$titles = $suggestions->map(function (SearchSuggestion $sugg) {
return $sugg->getSuggestedTitle();
});
$lb = new LinkBatch($titles);
$lb->setCaller(__METHOD__);
$lb->execute();
$results = $suggestions->map(function (SearchSuggestion $sugg) {
return $sugg->getSuggestedTitle()->getPrefixedText();
});
if ($this->offset === 0) {
// Rescore results with an exact title match
// NOTE: in some cases like cross-namespace redirects
// (frequently used as shortcuts e.g. WP:WP on huwiki) some
// backends like Cirrus will return no results. We should still
// try an exact title match to workaround this limitation
$rescorer = new SearchExactMatchRescorer();
$rescoredResults = $rescorer->rescore($search, $this->namespaces, $results, $this->limit);
} else {
// No need to rescore if offset is not 0
// The exact match must have been returned at position 0
// if it existed.
$rescoredResults = $results;
}
if (count($rescoredResults) > 0) {
$found = array_search($rescoredResults[0], $results);
if ($found === false) {
// If the first result is not in the previous array it
// means that we found a new exact match
$exactMatch = SearchSuggestion::fromTitle(0, Title::newFromText($rescoredResults[0]));
$suggestions->prepend($exactMatch);
$suggestions->shrink($this->limit);
} else {
// if the first result is not the same we need to rescore
if ($found > 0) {
$suggestions->rescore($found);
}
}
}
return $suggestions;
}
/**
* Builds a new set of suggestion based on a title array.
* Useful when using a backend that supports only Titles.
*
* NOTE: Suggestion scores will be generated.
*
* @param Title[] $titles
* @return SearchSuggestionSet
*/
public static function fromTitles(array $titles)
{
$score = count($titles);
$suggestions = array_map(function ($title) use(&$score) {
return SearchSuggestion::fromTitle($score--, $title);
}, $titles);
return new SearchSuggestionSet($suggestions);
}