From 222b01f5169f1c7e69762e0e8904c24f78f71882 Mon Sep 17 00:00:00 2001 From: Pierre Schmitz Date: Wed, 28 Jul 2010 11:52:48 +0200 Subject: update to MediaWiki 1.16.0 --- includes/SearchMySQL.php | 270 ----------------------------------------------- 1 file changed, 270 deletions(-) delete mode 100644 includes/SearchMySQL.php (limited to 'includes/SearchMySQL.php') diff --git a/includes/SearchMySQL.php b/includes/SearchMySQL.php deleted file mode 100644 index 5fc06790..00000000 --- a/includes/SearchMySQL.php +++ /dev/null @@ -1,270 +0,0 @@ - -# http://www.mediawiki.org/ -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program; if not, write to the Free Software Foundation, Inc., -# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -# http://www.gnu.org/copyleft/gpl.html - -/** - * @file - * @ingroup Search - */ - -/** - * Search engine hook for MySQL 4+ - * @ingroup Search - */ -class SearchMySQL extends SearchEngine { - var $strictMatching = true; - - /** @todo document */ - function __construct( $db ) { - $this->db = $db; - } - - /** - * Parse the user's query and transform it into an SQL fragment which will - * become part of a WHERE clause - */ - function parseQuery( $filteredText, $fulltext ) { - global $wgContLang; - $lc = SearchEngine::legalSearchChars(); // Minus format chars - $searchon = ''; - $this->searchTerms = array(); - - # FIXME: This doesn't handle parenthetical expressions. - $m = array(); - if( preg_match_all( '/([-+<>~]?)(([' . $lc . ']+)(\*?)|"[^"]*")/', - $filteredText, $m, PREG_SET_ORDER ) ) { - foreach( $m as $terms ) { - if( $searchon !== '' ) $searchon .= ' '; - if( $this->strictMatching && ($terms[1] == '') ) { - $terms[1] = '+'; - } - $searchon .= $terms[1] . $wgContLang->stripForSearch( $terms[2] ); - if( !empty( $terms[3] ) ) { - // Match individual terms in result highlighting... - $regexp = preg_quote( $terms[3], '/' ); - if( $terms[4] ) { - $regexp = "\b$regexp"; // foo* - } else { - $regexp = "\b$regexp\b"; - } - } else { - // Match the quoted term in result highlighting... - $regexp = preg_quote( str_replace( '"', '', $terms[2] ), '/' ); - } - $this->searchTerms[] = $regexp; - } - wfDebug( "Would search with '$searchon'\n" ); - wfDebug( 'Match with /' . implode( '|', $this->searchTerms ) . "/\n" ); - } else { - wfDebug( "Can't understand search query '{$filteredText}'\n" ); - } - - $searchon = $this->db->strencode( $searchon ); - $field = $this->getIndexField( $fulltext ); - return " MATCH($field) AGAINST('$searchon' IN BOOLEAN MODE) "; - } - - public static function legalSearchChars() { - return "\"*" . parent::legalSearchChars(); - } - - /** - * Perform a full text search query and return a result set. - * - * @param string $term - Raw search term - * @return MySQLSearchResultSet - * @access public - */ - function searchText( $term ) { - $resultSet = $this->db->resultObject( $this->db->query( $this->getQuery( $this->filter( $term ), true ) ) ); - return new MySQLSearchResultSet( $resultSet, $this->searchTerms ); - } - - /** - * Perform a title-only search query and return a result set. - * - * @param string $term - Raw search term - * @return MySQLSearchResultSet - * @access public - */ - function searchTitle( $term ) { - $resultSet = $this->db->resultObject( $this->db->query( $this->getQuery( $this->filter( $term ), false ) ) ); - return new MySQLSearchResultSet( $resultSet, $this->searchTerms ); - } - - - /** - * Return a partial WHERE clause to exclude redirects, if so set - * @return string - * @private - */ - function queryRedirect() { - if( $this->showRedirects ) { - return ''; - } else { - return 'AND page_is_redirect=0'; - } - } - - /** - * Return a partial WHERE clause to limit the search to the given namespaces - * @return string - * @private - */ - function queryNamespaces() { - if( is_null($this->namespaces) ) - return ''; # search all - if ( !count( $this->namespaces ) ) { - $namespaces = '0'; - } else { - $namespaces = $this->db->makeList( $this->namespaces ); - } - return 'AND page_namespace IN (' . $namespaces . ')'; - } - - /** - * Return a LIMIT clause to limit results on the query. - * @return string - * @private - */ - function queryLimit() { - return $this->db->limitResult( '', $this->limit, $this->offset ); - } - - /** - * Does not do anything for generic search engine - * subclasses may define this though - * @return string - * @private - */ - function queryRanking( $filteredTerm, $fulltext ) { - return ''; - } - - /** - * Construct the full SQL query to do the search. - * The guts shoulds be constructed in queryMain() - * @param string $filteredTerm - * @param bool $fulltext - * @private - */ - function getQuery( $filteredTerm, $fulltext ) { - return $this->queryMain( $filteredTerm, $fulltext ) . ' ' . - $this->queryRedirect() . ' ' . - $this->queryNamespaces() . ' ' . - $this->queryRanking( $filteredTerm, $fulltext ) . ' ' . - $this->queryLimit(); - } - - - /** - * Picks which field to index on, depending on what type of query. - * @param bool $fulltext - * @return string - */ - function getIndexField( $fulltext ) { - return $fulltext ? 'si_text' : 'si_title'; - } - - /** - * Get the base part of the search query. - * The actual match syntax will depend on the server - * version; MySQL 3 and MySQL 4 have different capabilities - * in their fulltext search indexes. - * - * @param string $filteredTerm - * @param bool $fulltext - * @return string - * @private - */ - function queryMain( $filteredTerm, $fulltext ) { - $match = $this->parseQuery( $filteredTerm, $fulltext ); - $page = $this->db->tableName( 'page' ); - $searchindex = $this->db->tableName( 'searchindex' ); - return 'SELECT page_id, page_namespace, page_title ' . - "FROM $page,$searchindex " . - 'WHERE page_id=si_page AND ' . $match; - } - - /** - * Create or update the search index record for the given page. - * Title and text should be pre-processed. - * - * @param int $id - * @param string $title - * @param string $text - */ - function update( $id, $title, $text ) { - $dbw = wfGetDB( DB_MASTER ); - $dbw->replace( 'searchindex', - array( 'si_page' ), - array( - 'si_page' => $id, - 'si_title' => $title, - 'si_text' => $text - ), __METHOD__ ); - } - - /** - * Update a search index record's title only. - * Title should be pre-processed. - * - * @param int $id - * @param string $title - */ - function updateTitle( $id, $title ) { - $dbw = wfGetDB( DB_MASTER ); - - $dbw->update( 'searchindex', - array( 'si_title' => $title ), - array( 'si_page' => $id ), - __METHOD__, - array( $dbw->lowPriorityOption() ) ); - } -} - -/** - * @ingroup Search - */ -class MySQLSearchResultSet extends SearchResultSet { - function MySQLSearchResultSet( $resultSet, $terms ) { - $this->mResultSet = $resultSet; - $this->mTerms = $terms; - } - - function termMatches() { - return $this->mTerms; - } - - function numRows() { - return $this->mResultSet->numRows(); - } - - function next() { - $row = $this->mResultSet->fetchObject(); - if( $row === false ) { - return false; - } else { - return new SearchResult( $row ); - } - } - - function free() { - $this->mResultSet->free(); - } -} -- cgit v1.2.2