X-Git-Url: https://git.heureux-cyclage.org/?a=blobdiff_plain;f=maintenance%2Frebuildtextindex.php;h=9717ebe21da36a7f7230f50e6c9f4b41ded7f8dc;hb=19466ac51ad70629945c3157ce9b0ca51ed50d98;hp=d99cea25e8aa0deaa2423ce61c199e916122c0cc;hpb=19f19c40c2dffb757eb86e0f15a822a722908124;p=lhc%2Fweb%2Fwiklou.git

diff --git a/maintenance/rebuildtextindex.php b/maintenance/rebuildtextindex.php
index d99cea25e8..9717ebe21d 100644
--- a/maintenance/rebuildtextindex.php
+++ b/maintenance/rebuildtextindex.php
@@ -1,35 +1,139 @@
 <?php
-define("MEDIAWIKI",true);
-# Rebuild search index table from scratch.  This takes several
-# hours, depending on the database size and server configuration.
-
-if ( ! is_readable( "../LocalSettings.php" ) ) {
-	print "A copy of your installation's LocalSettings.php\n" .
-	  "must exist in the source directory.\n";
-	exit();
-}
+/**
+ * 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
+ */
+
+require_once( dirname( __FILE__ ) . '/Maintenance.php' );
+
+class RebuildTextIndex extends Maintenance {
+ 	const RTI_CHUNK_SIZE = 500;
+	private $db;
+
+	public function __construct() {
+		parent::__construct();
+		$this->mDescription = "Rebuild search index table from scratch";
+	}
 
-$wgCommandLineMode = true;
-$DP = "../includes";
-require_once( "../LocalSettings.php" );
-require_once( "../AdminSettings.php" );
+	public function getDbType() {
+		return Maintenance::DB_ADMIN;
+	}
 
-$sep = strchr( $include_path = ini_get( "include_path" ), ";" ) ? ";" : ":";
-ini_set( "include_path", "$IP$sep$include_path" );
+	public function execute() {
+		global $wgTitle, $wgDBtype;
 
-require_once( "Setup.php" );
-require_once( "./rebuildtextindex.inc" );
-$wgTitle = Title::newFromText( "Rebuild text index script" );
-set_time_limit(0);
+		// Shouldn't be needed for Postgres
+		if ( $wgDBtype == 'postgres' ) {
+			$this->error( "This script is not needed when using Postgres.\n", true );
+		}
+	
+		$this->db = wfGetDB( DB_MASTER );
+		if ( $this->db->getType() == 'sqlite' ) {
+			if ( !$this->db->getFulltextSearchModule() ) {
+				$this->error( "Your version of SQLite module for PHP doesn't support full-text search (FTS3).\n" );
+			}
+			if ( !$this->db->checkForEnabledSearch() ) {
+				$this->error( "Your database schema is not configured for full-text search support. Run update.php.\n" );
+			}
+		}
+		
+		$wgTitle = Title::newFromText( "Rebuild text index script" );
+	
+		if ( $this->db->getType() == 'mysql' ) {
+			$this->dropMysqlTextIndex();
+			$this->populateSearchIndex();
+			$this->createMysqlTextIndex();
+		} else {
+			$this->clearSearchIndex();
+			$this->populateSearchIndex();
+		}
+	
+		$this->output( "Done.\n" );
+	}
 
-$wgDBuser			= $wgDBadminuser;
-$wgDBpassword		= $wgDBadminpassword;
+	/**
+	 * 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;
+	
+		while ( $n < $count ) {
+			if ( $n ) {
+				$this->output( $n . "\n" );
+			}
+			$end = $n + self::RTI_CHUNK_SIZE - 1;
 
-dropTextIndex();
-rebuildTextIndex();
-createTextIndex();
+			$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;
+		}
+	}
 
-print "Done.\n";
-exit();
+	/**
+	 * (MySQL only) Drops fulltext index before populating the table.
+	 */
+	private function dropMysqlTextIndex() {
+		$searchindex = $this->db->tableName( 'searchindex' );
+		if ( $this->db->indexExists( 'searchindex', 'si_title' ) ) {
+			$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( DO_MAINTENANCE );