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https://gerrit.wikimedia.org/r/mediawiki/extensions/Echo
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Delete invalid records from echo_target_page
Remove the records: * If a page is no longer valid * If a notification somehow has been read * If a notification is no longer a bundle base and has not been removed Change-Id: I282568691d6649c6e3263aea598c3bba29119a29
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113
maintenance/removeInvalidTargetPage.php
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113
maintenance/removeInvalidTargetPage.php
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<?php
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/**
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* Remove invalid records from echo_target_page. For instance, page has been
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* deleted or removed, notification has somehow been marked as read
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*
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* @ingroup Maintenance
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*/
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require_once ( getenv( 'MW_INSTALL_PATH' ) !== false
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? getenv( 'MW_INSTALL_PATH' ) . '/maintenance/Maintenance.php'
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: __DIR__ . '/../../../maintenance/Maintenance.php' );
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/**
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* Maintenance script that removes invalid target page
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*
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* @ingroup Maintenance
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*/
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class removeInvalidTargetPage extends Maintenance {
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public function __construct() {
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parent::__construct();
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$this->mDescription = "Delete invalid records from echo_target_page";
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$this->setBatchSize( 500 );
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}
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public function execute() {
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global $wgEchoCluster;
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$dbFactory = MWEchoDbFactory::newFromDefault();
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$dbw = $dbFactory->getEchoDb( DB_MASTER );
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$dbr = $dbFactory->getEchoDb( DB_SLAVE );
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$count = $this->mBatchSize;
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$userId = $eventId = 0;
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while ( $count == $this->mBatchSize ) {
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$res = $dbr->select(
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array(
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'echo_target_page',
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'echo_notification'
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),
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array(
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'etp_page',
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'etp_user',
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'etp_event',
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'notification_read_timestamp',
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'notification_bundle_base'
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),
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array(
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"etp_user > $userId OR ( etp_user = $userId AND etp_event > $eventId )"
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),
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__METHOD__,
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array(
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'ORDER BY' => 'etp_user, etp_event',
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'LIMIT' => $this->mBatchSize
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),
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array(
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'echo_notification' => array(
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'LEFT JOIN',
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'notification_event=etp_event AND notification_user = etp_user'
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),
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)
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);
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if ( !$res ) {
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$this->error( 'Could not select record from echo_target_page.', 1 );
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}
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$pageIds = $titles = array();
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foreach ( $res as $row ) {
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$pageIds[$row->etp_page] = $row->etp_page;
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}
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if ( $pageIds ) {
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foreach ( Title::newFromIds( $pageIds ) as $title ) {
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$titles[$title->getArticleID()] = true;
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}
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}
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// Reset the head of the iterator
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$res->rewind();
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$count = $invalidCount = 0;
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foreach( $res as $row ) {
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if (
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// Delete if notification is read
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$row->notification_read_timestamp
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// Delete if this is no longer a base event and
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// it's not deleted from echo_target_page
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|| $row->notification_bundle_base == '0'
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// Delete if title is no longer valid
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|| !isset( $titles[$row->etp_page] )
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) {
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$dbw->delete(
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'echo_target_page',
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array(
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'etp_user' => $row->etp_user,
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'etp_event' => $row->etp_event
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),
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__METHOD__
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);
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$invalidCount++;
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}
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$userId = $row->etp_user;
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$eventId = $row->etp_event;
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$count++;
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};
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$this->output( "Deleted $invalidCount records from $count records\n" );
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$dbFactory->waitForSlaves();
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}
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}
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}
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$maintClass = 'removeInvalidTargetPage'; // Tells it to run the class
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require_once( RUN_MAINTENANCE_IF_MAIN );
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