34 return $this->db->checkForEnabledSearch();
49 $this->searchTerms = [];
52 if ( preg_match_all(
'/([-+<>~]?)(([' . $lc .
']+)(\*?)|"[^"]*")/',
53 $filteredText, $m, PREG_SET_ORDER ) ) {
54 foreach ( $m as $bits ) {
55 MediaWiki\suppressWarnings();
56 list( , $modifier,
$term, $nonQuoted, $wildcard ) = $bits;
57 MediaWiki\restoreWarnings();
59 if ( $nonQuoted !=
'' ) {
67 if ( $searchon !==
'' ) {
74 if ( is_array( $convertedVariants ) ) {
75 $variants = array_unique( array_values( $convertedVariants ) );
77 $variants = [
$term ];
84 $strippedVariants = array_map(
91 $strippedVariants = array_unique( $strippedVariants );
93 $searchon .= $modifier;
94 if ( count( $strippedVariants ) > 1 ) {
97 foreach ( $strippedVariants as $stripped ) {
98 if ( $nonQuoted && strpos( $stripped,
' ' ) !==
false ) {
102 $stripped =
'"' . trim( $stripped ) .
'"';
104 $searchon .=
"$quote$stripped$quote$wildcard ";
106 if ( count( $strippedVariants ) > 1 ) {
113 $this->searchTerms[] = $regexp;
117 wfDebug( __METHOD__ .
": Can't understand search query '{$filteredText}'\n" );
120 $searchon = $this->db->addQuotes( $searchon );
122 return " $field MATCH $searchon ";
128 $regex = preg_quote( $string,
'/' );
134 $regex =
"\b$regex\b";
145 $searchChars = parent::legalSearchChars(
$type );
146 if (
$type === self::CHARS_ALL ) {
148 $searchChars =
"\"*" . $searchChars;
180 $filteredTerm = $this->
filter( $wgContLang->lc(
$term ) );
181 $resultSet = $this->db->query( $this->
getQuery( $filteredTerm, $fulltext ) );
184 $totalResult = $this->db->query( $this->
getCountQuery( $filteredTerm, $fulltext ) );
185 $row = $totalResult->fetchObject();
187 $total = intval( $row->c );
189 $totalResult->free();
200 return ''; # search all
207 return 'AND page_namespace IN (' .
$namespaces .
')';
216 return $this->db->limitResult( $sql, $this->limit, $this->offset );
228 $this->
queryMain( $filteredTerm, $fulltext ) .
' ' .
239 return $fulltext ?
'si_text' :
'si_title';
250 $match = $this->
parseQuery( $filteredTerm, $fulltext );
251 $page = $this->db->tableName(
'page' );
252 $searchindex = $this->db->tableName(
'searchindex' );
253 return "SELECT $searchindex.rowid, page_namespace, page_title " .
254 "FROM $page,$searchindex " .
255 "WHERE page_id=$searchindex.rowid AND $match";
259 $match = $this->
parseQuery( $filteredTerm, $fulltext );
260 $page = $this->db->tableName(
'page' );
261 $searchindex = $this->db->tableName(
'searchindex' );
262 return "SELECT COUNT(*) AS c " .
263 "FROM $page,$searchindex " .
264 "WHERE page_id=$searchindex.rowid AND $match " .
284 $dbw->delete(
'searchindex', [
'rowid' => $id ], __METHOD__ );
286 $dbw->insert(
'searchindex',
289 'si_title' => $title,
307 $dbw->update(
'searchindex',
308 [
'si_title' => $title ],
to move a page</td >< td > &*You are moving the page across namespaces
wfDebug( $text, $dest='all', array $context=[])
Sends a line to the debug log if enabled or, optionally, to a comment in output.
wfGetDB( $db, $groups=[], $wiki=false)
Get a Database object.
Base search engine base class for database-backed searches.
filter( $text)
Return a 'cleaned up' search string.
Search engine hook for SQLite.
getIndexField( $fulltext)
Picks which field to index on, depending on what type of query.
searchText( $term)
Perform a full text search query and return a result set.
searchInternal( $term, $fulltext)
parseQuery( $filteredText, $fulltext)
Parse the user's query and transform it into an SQL fragment which will become part of a WHERE clause...
fulltextSearchSupported()
Whether fulltext search is supported by current schema.
static legalSearchChars( $type=self::CHARS_ALL)
Get chars legal for search NOTE: usage as static is deprecated and preserved only as BC measure.
limitResult( $sql)
Returns a query with limit for number of results set.
update( $id, $title, $text)
Create or update the search index record for the given page.
searchTitle( $term)
Perform a title-only search query and return a result set.
updateTitle( $id, $title)
Update a search index record's title only.
getCountQuery( $filteredTerm, $fulltext)
queryNamespaces()
Return a partial WHERE clause to limit the search to the given namespaces.
regexTerm( $string, $wildcard)
queryMain( $filteredTerm, $fulltext)
Get the base part of the search query.
getQuery( $filteredTerm, $fulltext)
Construct the full SQL query to do the search.
This class is used for different SQL-based search engines shipped with MediaWiki.
deferred txt A few of the database updates required by various functions here can be deferred until after the result page is displayed to the user For updating the view updating the linked to tables after a etc PHP does not yet have any way to tell the server to actually return and disconnect while still running these but it might have such a feature in the future We handle these by creating a deferred update object and putting those objects on a global list
this class mediates it Skin Encapsulates a look and feel for the wiki All of the functions that render HTML and make choices about how to render it are here and are called from various other places when and is meant to be subclassed with other skins that may override some of its functions The User object contains a reference to a and so rather than having a global skin object we just rely on the global User and get the skin with $wgUser and also has some character encoding functions and other locale stuff The current user interface language is instantiated as and the local content language as $wgContLang
external whereas SearchGetNearMatch runs after $term