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| 1 | <?php |
| 2 | |
| 3 | namespace GrowthExperiments\Maintenance; |
| 4 | |
| 5 | use GrowthExperiments\MentorDashboard\MentorTools\MentorStatusManager; |
| 6 | use Maintenance; |
| 7 | use Wikimedia\Rdbms\IDatabase; |
| 8 | use Wikimedia\Rdbms\IReadableDatabase; |
| 9 | use Wikimedia\Timestamp\ConvertibleTimestamp; |
| 10 | |
| 11 | $IP = getenv( 'MW_INSTALL_PATH' ); |
| 12 | if ( $IP === false ) { |
| 13 | $IP = __DIR__ . '/../../..'; |
| 14 | } |
| 15 | require_once "$IP/maintenance/Maintenance.php"; |
| 16 | |
| 17 | /** |
| 18 | * Purge expired rows related to mentor status from user_properties |
| 19 | */ |
| 20 | class PurgeExpiredMentorStatus extends Maintenance { |
| 21 | |
| 22 | /** @var IReadableDatabase */ |
| 23 | private $dbr; |
| 24 | |
| 25 | /** @var IDatabase */ |
| 26 | private $dbw; |
| 27 | |
| 28 | public function __construct() { |
| 29 | parent::__construct(); |
| 30 | $this->requireExtension( 'GrowthExperiments' ); |
| 31 | $this->addDescription( |
| 32 | 'Remove expired values of MentorStatusManager::MENTOR_AWAY_TIMESTAMP_PREF from user_properties' |
| 33 | ); |
| 34 | $this->addOption( 'dry-run', 'Do not actually change anything.' ); |
| 35 | $this->setBatchSize( 100 ); |
| 36 | } |
| 37 | |
| 38 | private function initServices(): void { |
| 39 | $this->dbr = $this->getDB( DB_REPLICA ); |
| 40 | $this->dbw = $this->getDB( DB_PRIMARY ); |
| 41 | } |
| 42 | |
| 43 | private function getRows() { |
| 44 | yield from $this->dbr->newSelectQueryBuilder() |
| 45 | ->select( [ 'up_user', 'up_value' ] ) |
| 46 | ->from( 'user_properties' ) |
| 47 | ->where( [ 'up_property' => MentorStatusManager::MENTOR_AWAY_TIMESTAMP_PREF ] ) |
| 48 | ->caller( __METHOD__ )->fetchResultSet(); |
| 49 | } |
| 50 | |
| 51 | private function filterAndBatch() { |
| 52 | $batch = []; |
| 53 | foreach ( $this->getRows() as $row ) { |
| 54 | if ( |
| 55 | $row->up_value === null || |
| 56 | ConvertibleTimestamp::convert( TS_UNIX, $row->up_value ) < wfTimestamp( TS_UNIX ) |
| 57 | ) { |
| 58 | $batch[] = $row->up_user; |
| 59 | |
| 60 | if ( count( $batch ) >= $this->getBatchSize() ) { |
| 61 | yield $batch; |
| 62 | $batch = []; |
| 63 | } |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | if ( $batch !== [] ) { |
| 68 | yield $batch; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * @inheritDoc |
| 74 | */ |
| 75 | public function execute() { |
| 76 | $this->initServices(); |
| 77 | |
| 78 | $deletedCount = 0; |
| 79 | foreach ( $this->filterAndBatch() as $batch ) { |
| 80 | $this->deleteTimestamps( $batch ); |
| 81 | $deletedCount += count( $batch ); |
| 82 | } |
| 83 | |
| 84 | if ( $this->getOption( 'dry-run' ) ) { |
| 85 | $this->output( "Would delete $deletedCount rows from user_properties.\n" ); |
| 86 | } else { |
| 87 | $this->output( "Deleted $deletedCount rows from user_properties.\n" ); |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | private function deleteTimestamps( array $toDelete ): void { |
| 92 | if ( $this->getOption( 'dry-run' ) ) { |
| 93 | return; |
| 94 | } |
| 95 | $this->dbw->begin( __METHOD__ ); |
| 96 | $this->dbw->newDeleteQueryBuilder() |
| 97 | ->deleteFrom( 'user_properties' ) |
| 98 | ->where( [ |
| 99 | 'up_property' => MentorStatusManager::MENTOR_AWAY_TIMESTAMP_PREF, |
| 100 | 'up_user' => $toDelete |
| 101 | ] ) |
| 102 | ->caller( __METHOD__ ) |
| 103 | ->execute(); |
| 104 | $this->dbw->commit( __METHOD__ ); |
| 105 | $this->waitForReplication(); |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | $maintClass = PurgeExpiredMentorStatus::class; |
| 110 | require_once RUN_MAINTENANCE_IF_MAIN; |