public function supports( $feature ) {
switch ( $feature ) {
case 'list-redirects':
+ case 'search-update':
return true;
case 'title-suffix-filter':
default:
* Load up the appropriate search engine class for the currently
* active database backend, and return a configured instance.
*
+ * @param String $type Type of search backend, if not the default
* @return SearchEngine
*/
- public static function create() {
+ public static function create( $type = null ) {
global $wgSearchType;
$dbr = null;
- if ( $wgSearchType ) {
+
+ $alternatives = self::getSearchTypes();
+
+ if ( $type && in_array( $type, $alternatives ) ) {
+ $class = $type;
+ } elseif ( $wgSearchType !== null ) {
$class = $wgSearchType;
} else {
$dbr = wfGetDB( DB_SLAVE );
$class = $dbr->getSearchEngine();
}
+
$search = new $class( $dbr );
$search->setLimitOffset( 0, 0 );
return $search;
}
+ /**
+ * Return the search engines we support. If only $wgSearchType
+ * is set, it'll be an array of just that one item.
+ *
+ * @return array
+ */
+ public static function getSearchTypes() {
+ global $wgSearchType, $wgSearchTypeAlternatives;
+ static $alternatives = null;
+ if ( $alternatives === null ) {
+ $alternatives = $wgSearchTypeAlternatives ?: array();
+ array_unshift( $alternatives, $wgSearchType );
+ }
+ return $alternatives;
+ }
+
/**
* Create or update the search index record for the given page.
* Title and text should be pre-processed.
public function getTextFromContent( Title $t, Content $c = null ) {
return $c ? $c->getTextForSearchIndex() : '';
}
+
+ /**
+ * If an implementation of SearchEngine handles all of its own text processing
+ * in getTextFromContent() and doesn't require SearchUpdate::updateText()'s
+ * rather silly handling, it should return true here instead.
+ *
+ * @return bool
+ */
+ public function textAlreadyUpdatedForIndex() {
+ return false;
+ }
}
/**
* @return String: highlighted text snippet, null (and not '') if not supported
*/
function getTextSnippet( $terms ) {
- global $wgUser, $wgAdvancedSearchHighlighting;
+ global $wgAdvancedSearchHighlighting;
$this->initText();
// TODO: make highliter take a content object. Make ContentHandler a factory for SearchHighliter.
- list( $contextlines, $contextchars ) = SearchEngine::userHighlightPrefs( $wgUser );
+ list( $contextlines, $contextchars ) = SearchEngine::userHighlightPrefs();
$h = new SearchHighlighter();
if ( $wgAdvancedSearchHighlighting ) {
return $h->highlightText( $this->mText, $terms, $contextlines, $contextchars );