<?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.
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
+ * @file
* @ingroup Maintenance
*/
-require_once( dirname(__FILE__) . '/Maintenance.php' );
+require_once __DIR__ . '/Maintenance.php';
-class PopulateParentId extends Maintenance {
+/**
+ * Maintenance script that makes the required database updates for rev_parent_id
+ * to be of any use.
+ *
+ * @ingroup Maintenance
+ */
+class PopulateParentId extends LoggedUpdateMaintenance {
public function __construct() {
parent::__construct();
- $this->mDescription = "Populates rev_parent_id";
- $this->setBatchSize( 200 );
+ $this->addDescription( 'Populates rev_parent_id' );
+ }
+
+ protected function getUpdateKey() {
+ return 'populate rev_parent_id';
+ }
+
+ protected function updateSkippedMessage() {
+ return 'rev_parent_id column of revision table already populated.';
}
- public function execute() {
- $db = wfGetDB( DB_MASTER );
+ protected function doDBUpdates() {
+ $db = $this->getDB( DB_MASTER );
if ( !$db->tableExists( 'revision' ) ) {
- $this->error( "revision table does not exist", true );
+ $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.\n" );
- $db->insert( 'updatelog',
- array( 'ul_key' => 'populate rev_parent_id' ),
- __METHOD__,
- 'IGNORE' );
- return;
+ if ( is_null( $start ) || is_null( $end ) ) {
+ $this->output( "...revision table seems to be empty, nothing to do.\n" );
+
+ return true;
}
# Do remaining chunk
- $end += $this->mBatchSize - 1;
$blockStart = intval( $start );
$blockEnd = intval( $start ) + $this->mBatchSize - 1;
$count = 0;
$changed = 0;
- while( $blockEnd <= $end ) {
+ 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__ );
+ $res = $db->select( 'revision',
+ [ 'rev_id', 'rev_page', 'rev_timestamp', 'rev_parent_id' ],
+ [ $cond, 'rev_parent_id' => null ], __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 ) {
+ 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 ) ),
+ $previousID = $db->selectField( 'revision', 'rev_id',
+ [ '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 ) {
+ [ 'ORDER BY' => 'rev_id DESC' ] );
+ # If there are none, check 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 ) ),
+ $lastTimestamp = $db->selectField(
+ 'revision',
+ 'rev_timestamp',
+ [
+ 'rev_page' => $row->rev_page,
+ "rev_timestamp < " . $db->addQuotes( $row->rev_timestamp )
+ ],
__METHOD__,
- array( 'ORDER BY' => 'rev_timestamp DESC' ) );
+ [ '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 ),
+ if ( $lastTimestamp ) {
+ $previousID = $db->selectField( 'revision', 'rev_id',
+ [ 'rev_page' => $row->rev_page, 'rev_timestamp' => $lastTimestamp ],
__METHOD__,
- array( 'ORDER BY' => 'rev_id DESC' ) );
+ [ 'ORDER BY' => 'rev_id DESC' ] );
}
}
- $previousID = intval($previousID);
- if( $previousID != $row->rev_parent_id )
+ $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 ),
+ [ 'rev_parent_id' => $previousID ],
+ [ 'rev_id' => $row->rev_id ],
__METHOD__ );
$count++;
}
- $blockStart += $this->mBatchSize - 1;
- $blockEnd += $this->mBatchSize - 1;
- wfWaitForSlaves( 5 );
- }
- $logged = $db->insert( 'updatelog',
- array( 'ul_key' => 'populate rev_parent_id' ),
- __METHOD__,
- 'IGNORE' );
- if( $logged ) {
- $this->output( "rev_parent_id population complete ... {$count} rows [{$changed} changed]\n" );
- return true;
- } else {
- $this->output( "Could not insert rev_parent_id population row.\n" );
- return false;
+ $blockStart += $this->mBatchSize;
+ $blockEnd += $this->mBatchSize;
+ wfWaitForSlaves();
}
+ $this->output( "rev_parent_id population complete ... {$count} rows [{$changed} changed]\n" );
+
+ return true;
}
}
$maintClass = "PopulateParentId";
-require_once( DO_MAINTENANCE );
+require_once RUN_MAINTENANCE_IF_MAIN;
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff