-<?
+<?php
+/**
+ * Rebuild search index table from scratch. This may take several
+ * hours, depending on the database size and server configuration.
+ *
+ * Postgres is trigger-based and should never need rebuilding.
+ *
+ * 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
+ *
+ * @ingroup Maintenance
+ * @todo document
+ */
-# Rebuild link tracking tables from scratch. This takes several
-# hours, depending on the database size and server configuration.
+require_once( dirname( __FILE__ ) . '/Maintenance.php' );
-if ( ! is_readable( "../LocalSettings.php" ) ) {
- print "A copy of your installation's LocalSettings.php\n" .
- "must exist in the source directory.\n";
- exit();
-}
+class RebuildTextIndex extends Maintenance {
+ const RTI_CHUNK_SIZE = 500;
+
+ /**
+ * @var DatabaseBase
+ */
+ private $db;
+
+ public function __construct() {
+ parent::__construct();
+ $this->mDescription = "Rebuild search index table from scratch";
+ }
+
+ public function getDbType() {
+ return Maintenance::DB_ADMIN;
+ }
+
+ public function execute() {
+ global $wgTitle;
+
+ // Shouldn't be needed for Postgres
+ $this->db = wfGetDB( DB_MASTER );
+ if ( $this->db->getType() == 'postgres' ) {
+ $this->error( "This script is not needed when using Postgres.\n", true );
+ }
+
+ $this->db = wfGetDB( DB_MASTER );
+ if ( $this->db->getType() == 'sqlite' ) {
+ if ( !DatabaseSqlite::getFulltextSearchModule() ) {
+ $this->error( "Your version of SQLite module for PHP doesn't support full-text search (FTS3).\n", true );
+ }
+ if ( !$this->db->checkForEnabledSearch() ) {
+ $this->error( "Your database schema is not configured for full-text search support. Run update.php.\n", true );
+ }
+ }
-$DP = "../includes";
-include_once( "../LocalSettings.php" );
-include_once( "../AdminSettings.php" );
+ $wgTitle = Title::newFromText( "Rebuild text index script" );
-include_once( "{$IP}/Setup.php" );
-include_once( "./rebuildtextindex.inc" );
-$wgTitle = Title::newFromText( "Rebuild text index script" );
-set_time_limit(0);
+ if ( $this->db->getType() == 'mysql' ) {
+ $this->dropMysqlTextIndex();
+ $this->populateSearchIndex();
+ $this->createMysqlTextIndex();
+ } else {
+ $this->clearSearchIndex();
+ $this->populateSearchIndex();
+ }
-$wgDBuser = $wgDBadminuser;
-$wgDBpassword = $wgDBadminpassword;
+ $this->output( "Done.\n" );
+ }
-dropTextIndex();
-rebuildTextIndex();
-createTextIndex();
+ /**
+ * Populates the search index with content from all pages
+ */
+ protected function populateSearchIndex() {
+ $res = $this->db->select( 'page', 'MAX(page_id) AS count' );
+ $s = $this->db->fetchObject( $res );
+ $count = $s->count;
+ $this->output( "Rebuilding index fields for {$count} pages...\n" );
+ $n = 0;
-print "Done.\n";
-exit();
+ while ( $n < $count ) {
+ if ( $n ) {
+ $this->output( $n . "\n" );
+ }
+ $end = $n + self::RTI_CHUNK_SIZE - 1;
+
+ $res = $this->db->select( array( 'page', 'revision', 'text' ),
+ array( 'page_id', 'page_namespace', 'page_title', 'old_flags', 'old_text' ),
+ array( "page_id BETWEEN $n AND $end", 'page_latest = rev_id', 'rev_text_id = old_id' ),
+ __METHOD__
+ );
+
+ foreach ( $res as $s ) {
+ $revtext = Revision::getRevisionText( $s );
+ $u = new SearchUpdate( $s->page_id, $s->page_title, $revtext );
+ $u->doUpdate();
+ }
+ $n += self::RTI_CHUNK_SIZE;
+ }
+ }
+
+ /**
+ * (MySQL only) Drops fulltext index before populating the table.
+ */
+ private function dropMysqlTextIndex() {
+ $searchindex = $this->db->tableName( 'searchindex' );
+ if ( $this->db->indexExists( 'searchindex', 'si_title', __METHOD__ ) ) {
+ $this->output( "Dropping index...\n" );
+ $sql = "ALTER TABLE $searchindex DROP INDEX si_title, DROP INDEX si_text";
+ $this->db->query( $sql, __METHOD__ );
+ }
+ }
+
+ /**
+ * (MySQL only) Adds back fulltext index after populating the table.
+ */
+ private function createMysqlTextIndex() {
+ $searchindex = $this->db->tableName( 'searchindex' );
+ $this->output( "\nRebuild the index...\n" );
+ $sql = "ALTER TABLE $searchindex ADD FULLTEXT si_title (si_title), " .
+ "ADD FULLTEXT si_text (si_text)";
+ $this->db->query( $sql, __METHOD__ );
+ }
+
+ /**
+ * Deletes everything from search index.
+ */
+ private function clearSearchIndex() {
+ $this->output( 'Clearing searchindex table...' );
+ $this->db->delete( 'searchindex', '*', __METHOD__ );
+ $this->output( "Done\n" );
+ }
+}
-?>
+$maintClass = "RebuildTextIndex";
+require_once( RUN_MAINTENANCE_IF_MAIN );
dépôts / lhc / web / wiklou.git / blobdiff