populateLogSearch.php

Go to the documentation of this file.

<?php
require_once __DIR__ . '/Maintenance.php';

class PopulateLogSearch extends LoggedUpdateMaintenance {
    private static $tableMap = array(
        'rev' => 'revision',
        'fa' => 'filearchive',
        'oi' => 'oldimage',
        'ar' => 'archive'
    );

    public function __construct() {
        parent::__construct();
        $this->mDescription = "Migrate log params to new table and index for searching";
        $this->setBatchSize( 100 );
    }

    protected function getUpdateKey() {
        return 'populate log_search';
    }

    protected function updateSkippedMessage() {
        return 'log_search table already populated.';
    }

    protected function doDBUpdates() {
        $db = $this->getDB( DB_MASTER );
        if ( !$db->tableExists( 'log_search' ) ) {
            $this->error( "log_search does not exist" );

            return false;
        }
        $start = $db->selectField( 'logging', 'MIN(log_id)', false, __FUNCTION__ );
        if ( !$start ) {
            $this->output( "Nothing to do.\n" );

            return true;
        }
        $end = $db->selectField( 'logging', 'MAX(log_id)', false, __FUNCTION__ );

        # Do remaining chunk
        $end += $this->mBatchSize - 1;
        $blockStart = $start;
        $blockEnd = $start + $this->mBatchSize - 1;

        $delTypes = array( 'delete', 'suppress' ); // revisiondelete types
        while ( $blockEnd <= $end ) {
            $this->output( "...doing log_id from $blockStart to $blockEnd\n" );
            $cond = "log_id BETWEEN $blockStart AND $blockEnd";
            $res = $db->select( 'logging', '*', $cond, __FUNCTION__ );
            foreach ( $res as $row ) {
                // RevisionDelete logs - revisions
                if ( LogEventsList::typeAction( $row, $delTypes, 'revision' ) ) {
                    $params = LogPage::extractParams( $row->log_params );
                    // Param format: <urlparam> <item CSV> [<ofield> <nfield>]
                    if ( count( $params ) < 2 ) {
                        continue; // bad row?
                    }
                    $field = RevisionDeleter::getRelationType( $params[0] );
                    // B/C, the params may start with a title key (<title> <urlparam> <CSV>)
                    if ( $field == null ) {
                        array_shift( $params ); // remove title param
                        $field = RevisionDeleter::getRelationType( $params[0] );
                        if ( $field == null ) {
                            $this->output( "Invalid param type for {$row->log_id}\n" );
                            continue; // skip this row
                        } else {
                            // Clean up the row...
                            $db->update( 'logging',
                                array( 'log_params' => implode( ',', $params ) ),
                                array( 'log_id' => $row->log_id ) );
                        }
                    }
                    $items = explode( ',', $params[1] );
                    $log = new LogPage( $row->log_type );
                    // Add item relations...
                    $log->addRelations( $field, $items, $row->log_id );
                    // Determine what table to query...
                    $prefix = substr( $field, 0, strpos( $field, '_' ) ); // db prefix
                    if ( !isset( self::$tableMap[$prefix] ) ) {
                        continue; // bad row?
                    }
                    $table = self::$tableMap[$prefix];
                    $userField = $prefix . '_user';
                    $userTextField = $prefix . '_user_text';
                    // Add item author relations...
                    $userIds = $userIPs = array();
                    $sres = $db->select( $table,
                        array( $userField, $userTextField ),
                        array( $field => $items )
                    );
                    foreach ( $sres as $srow ) {
                        if ( $srow->$userField > 0 ) {
                            $userIds[] = intval( $srow->$userField );
                        } elseif ( $srow->$userTextField != '' ) {
                            $userIPs[] = $srow->$userTextField;
                        }
                    }
                    // Add item author relations...
                    $log->addRelations( 'target_author_id', $userIds, $row->log_id );
                    $log->addRelations( 'target_author_ip', $userIPs, $row->log_id );
                } elseif ( LogEventsList::typeAction( $row, $delTypes, 'event' ) ) {
                    // RevisionDelete logs - log events
                    $params = LogPage::extractParams( $row->log_params );
                    // Param format: <item CSV> [<ofield> <nfield>]
                    if ( count( $params ) < 1 ) {
                        continue; // bad row
                    }
                    $items = explode( ',', $params[0] );
                    $log = new LogPage( $row->log_type );
                    // Add item relations...
                    $log->addRelations( 'log_id', $items, $row->log_id );
                    // Add item author relations...
                    $userIds = $userIPs = array();
                    $sres = $db->select( 'logging',
                        array( 'log_user', 'log_user_text' ),
                        array( 'log_id' => $items )
                    );
                    foreach ( $sres as $srow ) {
                        if ( $srow->log_user > 0 ) {
                            $userIds[] = intval( $srow->log_user );
                        } elseif ( IP::isIPAddress( $srow->log_user_text ) ) {
                            $userIPs[] = $srow->log_user_text;
                        }
                    }
                    $log->addRelations( 'target_author_id', $userIds, $row->log_id );
                    $log->addRelations( 'target_author_ip', $userIPs, $row->log_id );
                }
            }
            $blockStart += $this->mBatchSize;
            $blockEnd += $this->mBatchSize;
            wfWaitForSlaves();
        }
        $this->output( "Done populating log_search table.\n" );

        return true;
    }
}

$maintClass = "PopulateLogSearch";
require_once RUN_MAINTENANCE_IF_MAIN;