253 lines
6.6 KiB
PHP
253 lines
6.6 KiB
PHP
<?php
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/**
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*/
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require_once __DIR__ . '/Maintenance.php';
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/**
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* Populate and improve accuracy of change_tag_def statistics.
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*
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* @ingroup Maintenance
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*/
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class PopulateChangeTagDef extends LoggedUpdateMaintenance {
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/** @var Wikimedia\Rdbms\ILBFactory */
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protected $lbFactory;
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public function __construct() {
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parent::__construct();
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$this->addDescription( 'Populate and improve accuracy of change_tag_def statistics' );
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$this->addOption( 'dry-run', 'Print debug info instead of actually deleting' );
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$this->setBatchSize( 1000 );
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$this->addOption(
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'sleep',
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'Sleep time (in seconds) between every batch, defaults to zero',
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false,
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true
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);
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$this->addOption( 'populate-only', 'Do not update change_tag_def table' );
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$this->addOption( 'set-user-tags-only', 'Only update ctd_user_defined from valid_tag table' );
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}
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protected function doDBUpdates() {
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$this->lbFactory = MediaWiki\MediaWikiServices::getInstance()->getDBLoadBalancerFactory();
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$this->setBatchSize( $this->getOption( 'batch-size', $this->getBatchSize() ) );
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if ( $this->lbFactory->getMainLB()->getConnection( DB_REPLICA )->fieldExists(
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'change_tag',
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'ct_tag',
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__METHOD__
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)
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) {
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if ( $this->hasOption( 'set-user-tags-only' ) ) {
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$this->setUserDefinedTags();
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return true;
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}
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if ( !$this->hasOption( 'populate-only' ) ) {
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$this->updateCountTag();
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}
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$this->backpopulateChangeTagId();
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$this->setUserDefinedTags();
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} else {
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$this->updateCountTagId();
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}
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// TODO: Implement
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// $this->cleanZeroCountRows();
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return true;
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}
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private function setUserDefinedTags() {
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$dbr = $this->lbFactory->getMainLB()->getConnection( DB_REPLICA );
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$userTags = null;
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if ( $dbr->tableExists( 'valid_tag', __METHOD__ ) ) {
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$userTags = $dbr->selectFieldValues(
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'valid_tag',
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'vt_tag',
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[],
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__METHOD__
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);
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}
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if ( empty( $userTags ) ) {
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$this->output( "No user defined tags to set, moving on...\n" );
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return;
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}
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if ( $this->hasOption( 'dry-run' ) ) {
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$this->output(
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'These tags will have ctd_user_defined=1 : ' . implode( ', ', $userTags ) . "\n"
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);
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return;
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}
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$dbw = $this->lbFactory->getMainLB()->getConnection( DB_PRIMARY );
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$dbw->update(
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'change_tag_def',
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[ 'ctd_user_defined' => 1 ],
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[ 'ctd_name' => $userTags ],
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__METHOD__
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);
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$this->lbFactory->waitForReplication();
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$this->output( "Finished setting user defined tags in change_tag_def table\n" );
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}
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private function updateCountTagId() {
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$dbr = $this->lbFactory->getMainLB()->getConnection( DB_REPLICA );
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// This query can be pretty expensive, don't run it on master
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$res = $dbr->select(
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'change_tag',
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[ 'ct_tag_id', 'hitcount' => 'count(*)' ],
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[],
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__METHOD__,
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[ 'GROUP BY' => 'ct_tag_id' ]
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);
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$dbw = $this->lbFactory->getMainLB()->getConnection( DB_PRIMARY );
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foreach ( $res as $row ) {
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if ( !$row->ct_tag_id ) {
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continue;
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}
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if ( $this->hasOption( 'dry-run' ) ) {
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$this->output( 'This row will be updated: ' . implode( ', ', $row ) . "\n" );
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continue;
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}
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$dbw->update(
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'change_tag_def',
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[ 'ctd_count' => $row->hitcount ],
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[ 'ctd_id' => $row->ct_tag_id ],
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__METHOD__
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);
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}
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$this->lbFactory->waitForReplication();
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}
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private function updateCountTag() {
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$dbr = $this->lbFactory->getMainLB()->getConnection( DB_REPLICA );
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// This query can be pretty expensive, don't run it on master
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$res = $dbr->select(
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'change_tag',
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[ 'ct_tag', 'hitcount' => 'count(*)' ],
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[],
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__METHOD__,
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[ 'GROUP BY' => 'ct_tag' ]
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);
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$dbw = $this->lbFactory->getMainLB()->getConnection( DB_PRIMARY );
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foreach ( $res as $row ) {
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// Hygiene check
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if ( !$row->ct_tag ) {
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continue;
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}
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if ( $this->hasOption( 'dry-run' ) ) {
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$this->output( 'This row will be updated: ' . $row->ct_tag . $row->hitcount . "\n" );
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continue;
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}
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$dbw->upsert(
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'change_tag_def',
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[
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'ctd_name' => $row->ct_tag,
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'ctd_user_defined' => 0,
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'ctd_count' => $row->hitcount
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],
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'ctd_name',
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[ 'ctd_count' => $row->hitcount ],
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__METHOD__
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);
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}
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$this->lbFactory->waitForReplication();
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}
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private function backpopulateChangeTagId() {
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$dbr = $this->lbFactory->getMainLB()->getConnection( DB_REPLICA );
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$changeTagDefs = $dbr->select(
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'change_tag_def',
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[ 'ctd_name', 'ctd_id' ],
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[],
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__METHOD__,
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[ 'ORDER BY' => 'ctd_id' ]
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);
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foreach ( $changeTagDefs as $row ) {
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$this->backpopulateChangeTagPerTag( $row->ctd_name, $row->ctd_id );
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}
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}
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private function backpopulateChangeTagPerTag( $tagName, $tagId ) {
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$dbr = $this->lbFactory->getMainLB()->getConnection( DB_REPLICA );
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$dbw = $this->lbFactory->getMainLB()->getConnection( DB_PRIMARY );
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$sleep = (int)$this->getOption( 'sleep', 0 );
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$lastId = 0;
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$this->output( "Starting to add ct_tag_id = {$tagId} for ct_tag = {$tagName}\n" );
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while ( true ) {
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// Given that indexes might not be there, it's better to use replica
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$ids = $dbr->selectFieldValues(
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'change_tag',
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'ct_id',
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[ 'ct_tag' => $tagName, 'ct_tag_id' => null, 'ct_id > ' . $lastId ],
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__METHOD__,
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[ 'LIMIT' => $this->getBatchSize(), 'ORDER BY' => 'ct_id' ]
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);
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if ( !$ids ) {
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break;
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}
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$lastId = end( $ids );
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if ( $this->hasOption( 'dry-run' ) ) {
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$this->output(
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"These ids will be changed to have \"{$tagId}\" as tag id: " . implode( ', ', $ids ) . "\n"
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);
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continue;
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} else {
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$this->output( "Updating ct_tag_id = {$tagId} up to row ct_id = {$lastId}\n" );
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}
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$dbw->update(
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'change_tag',
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[ 'ct_tag_id' => $tagId ],
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[ 'ct_id' => $ids ],
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__METHOD__
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);
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$this->lbFactory->waitForReplication();
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if ( $sleep > 0 ) {
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sleep( $sleep );
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}
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}
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$this->output( "Finished adding ct_tag_id = {$tagId} for ct_tag = {$tagName}\n" );
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}
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protected function getUpdateKey() {
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return __CLASS__;
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}
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}
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$maintClass = PopulateChangeTagDef::class;
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require_once RUN_MAINTENANCE_IF_MAIN;
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