<?php
-
-/*
+/**
* Makes the required database updates for rev_parent_id
* to be of any use. It can be used for some simple tracking
* and to find new page edits by users.
+ *
+ * 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
*/
-define( 'BATCH_SIZE', 200 );
+require_once( dirname( __FILE__ ) . '/Maintenance.php' );
-require_once 'commandLine.inc';
-
-$db =& wfGetDB( DB_MASTER );
-if ( !$db->tableExists( 'revision' ) ) {
- echo "revision table does not exist\n";
- exit( 1 );
-}
+class PopulateParentId extends LoggedUpdateMaintenance {
+ public function __construct() {
+ parent::__construct();
+ $this->mDescription = "Populates rev_parent_id";
+ }
-populate_rev_parent_id( $db );
+ protected function getUpdateKey() {
+ return 'populate rev_parent_id';
+ }
-function populate_rev_parent_id( $db ) {
- echo "Populating rev_parent_id column\n";
- $start = $db->selectField( 'revision', 'MIN(rev_id)', false, __FUNCTION__ );
- $end = $db->selectField( 'revision', 'MAX(rev_id)', false, __FUNCTION__ );
- if( is_null( $start ) || is_null( $end ) ){
- echo "...revision table seems to be empty.\n";
- $db->insert( 'updatelog',
- array( 'ul_key' => 'populate rev_parent_id' ),
- __FUNCTION__,
- 'IGNORE' );
- return;
+ protected function updateSkippedMessage() {
+ return 'rev_parent_id column of revision table already populated.';
}
- # Do remaining chunk
- $end += BATCH_SIZE - 1;
- $blockStart = $start;
- $blockEnd = $start + BATCH_SIZE - 1;
- $count = 0;
- $changed = 0;
- while( $blockEnd <= $end ) {
- echo "...doing rev_id from $blockStart to $blockEnd\n";
- $cond = "rev_id BETWEEN $blockStart AND $blockEnd";
- $res = $db->select( 'revision',
- array('rev_id','rev_page','rev_timestamp','rev_parent_id'),
- $cond, __FUNCTION__ );
- # Go through and update rev_parent_id from these rows.
- # Assume that the previous revision of the title was
- # the original previous revision of the title when the
- # edit was made...
- foreach( $res as $row ) {
- # First, check rows with the same timestamp other than this one
- # with a smaller rev ID. The highest ID "wins". This avoids loops
- # as timestamp can only decrease and never loops with IDs (from parent to parent)
- $previousID = $db->selectField( 'revision', 'rev_id',
- array( 'rev_page' => $row->rev_page, 'rev_timestamp' => $row->rev_timestamp,
- "rev_id < {$row->rev_id}" ),
- __FUNCTION__,
- array( 'ORDER BY' => 'rev_id DESC' ) );
- # If there are none, check the the highest ID with a lower timestamp
- if( !$previousID ) {
- # Get the highest older timestamp
- $lastTimestamp = $db->selectField( 'revision', 'rev_timestamp',
- array( 'rev_page' => $row->rev_page, "rev_timestamp < '{$row->rev_timestamp}'" ),
- __FUNCTION__,
- array( 'ORDER BY' => 'rev_timestamp DESC' ) );
- # If there is one, let the highest rev ID win
- if( $lastTimestamp ) {
- $previousID = $db->selectField( 'revision', 'rev_id',
- array( 'rev_page' => $row->rev_page, 'rev_timestamp' => $lastTimestamp ),
- __FUNCTION__,
- array( 'ORDER BY' => 'rev_id DESC' ) );
+
+ protected function doDBUpdates() {
+ $db = wfGetDB( DB_MASTER );
+ if ( !$db->tableExists( 'revision' ) ) {
+ $this->error( "revision table does not exist" );
+ return false;
+ }
+ $this->output( "Populating rev_parent_id column\n" );
+ $start = $db->selectField( 'revision', 'MIN(rev_id)', false, __FUNCTION__ );
+ $end = $db->selectField( 'revision', 'MAX(rev_id)', false, __FUNCTION__ );
+ if ( is_null( $start ) || is_null( $end ) ) {
+ $this->output( "...revision table seems to be empty, nothing to do.\n" );
+ return true;
+ }
+ # Do remaining chunk
+ $blockStart = intval( $start );
+ $blockEnd = intval( $start ) + $this->mBatchSize - 1;
+ $count = 0;
+ $changed = 0;
+ while ( $blockStart <= $end ) {
+ $this->output( "...doing rev_id from $blockStart to $blockEnd\n" );
+ $cond = "rev_id BETWEEN $blockStart AND $blockEnd";
+ $res = $db->select( 'revision',
+ array( 'rev_id', 'rev_page', 'rev_timestamp', 'rev_parent_id' ),
+ $cond, __METHOD__ );
+ # Go through and update rev_parent_id from these rows.
+ # Assume that the previous revision of the title was
+ # the original previous revision of the title when the
+ # edit was made...
+ foreach ( $res as $row ) {
+ # First, check rows with the same timestamp other than this one
+ # with a smaller rev ID. The highest ID "wins". This avoids loops
+ # as timestamp can only decrease and never loops with IDs (from parent to parent)
+ $previousID = $db->selectField( 'revision', 'rev_id',
+ array( 'rev_page' => $row->rev_page, 'rev_timestamp' => $row->rev_timestamp,
+ "rev_id < " . intval( $row->rev_id ) ),
+ __METHOD__,
+ array( 'ORDER BY' => 'rev_id DESC' ) );
+ # If there are none, check the the highest ID with a lower timestamp
+ if ( !$previousID ) {
+ # Get the highest older timestamp
+ $lastTimestamp = $db->selectField( 'revision', 'rev_timestamp',
+ array( 'rev_page' => $row->rev_page, "rev_timestamp < " . $db->addQuotes( $row->rev_timestamp ) ),
+ __METHOD__,
+ array( 'ORDER BY' => 'rev_timestamp DESC' ) );
+ # If there is one, let the highest rev ID win
+ if ( $lastTimestamp ) {
+ $previousID = $db->selectField( 'revision', 'rev_id',
+ array( 'rev_page' => $row->rev_page, 'rev_timestamp' => $lastTimestamp ),
+ __METHOD__,
+ array( 'ORDER BY' => 'rev_id DESC' ) );
+ }
}
+ $previousID = intval( $previousID );
+ if ( $previousID != $row->rev_parent_id )
+ $changed++;
+ # Update the row...
+ $db->update( 'revision',
+ array( 'rev_parent_id' => $previousID ),
+ array( 'rev_id' => $row->rev_id ),
+ __METHOD__ );
+ $count++;
}
- $previousID = intval($previousID);
- if( $previousID != $row->rev_parent_id )
- $changed++;
- # Update the row...
- $db->update( 'revision',
- array( 'rev_parent_id' => $previousID ),
- array( 'rev_id' => $row->rev_id ),
- __FUNCTION__ );
- $count++;
+ $blockStart += $this->mBatchSize;
+ $blockEnd += $this->mBatchSize;
+ wfWaitForSlaves();
}
- $blockStart += BATCH_SIZE - 1;
- $blockEnd += BATCH_SIZE - 1;
- wfWaitForSlaves( 5 );
- }
- $logged = $db->insert( 'updatelog',
- array( 'ul_key' => 'populate rev_parent_id' ),
- __FUNCTION__,
- 'IGNORE' );
- if( $logged ) {
- echo "rev_parent_id population complete ... {$count} rows [{$changed} changed]\n";
+ $this->output( "rev_parent_id population complete ... {$count} rows [{$changed} changed]\n" );
return true;
- } else {
- echo "Could not insert rev_parent_id population row.\n";
- return false;
}
}
-
+$maintClass = "PopulateParentId";
+require_once( RUN_MAINTENANCE_IF_MAIN );
dépôts / lhc / web / wiklou.git / blobdiff