mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Echo
synced 2024-11-14 11:16:16 +00:00
334 lines
8.7 KiB
PHP
334 lines
8.7 KiB
PHP
<?php
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/**
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* Database backend for echo notification
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*/
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class MWDbEchoBackend extends MWEchoBackend {
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/**
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* @param $row array
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*/
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public function createNotification( $row ) {
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$dbw = MWEchoDbFactory::getDB( DB_MASTER );
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$fname = __METHOD__;
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$dbw->onTransactionIdle(
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function() use ( $dbw, $row, $fname ) {
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$dbw->begin( $fname );
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// reset the base if this notification has a display hash
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if ( $row['notification_bundle_display_hash'] ) {
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$dbw->update(
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'echo_notification',
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array( 'notification_bundle_base' => 0 ),
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array(
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'notification_user' => $row['notification_user'],
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'notification_bundle_display_hash' => $row['notification_bundle_display_hash'],
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'notification_bundle_base' => 1
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),
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$fname
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);
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}
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$row['notification_timestamp'] = $dbw->timestamp( $row['notification_timestamp'] );
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$dbw->insert( 'echo_notification', $row, $fname );
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$dbw->commit( $fname );
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$user = User::newFromId( $row['notification_user'] );
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MWEchoNotifUser::newFromUser( $user )->resetNotificationCount( DB_MASTER );
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}
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);
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}
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/**
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* @param $user User the user to get notifications for
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* @param $limit int The maximum number of notifications to return
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* @param $continue string Used for offset
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* @param $outputFormat string The output format of the notifications (web,
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* email, etc.)
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* @return array
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*/
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public function loadNotifications( $user, $limit, $continue, $outputFormat = 'web' ) {
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$dbr = MWEchoDbFactory::getDB( DB_SLAVE );
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$eventTypesToLoad = EchoNotificationController::getUserEnabledEvents( $user, $outputFormat );
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if ( !$eventTypesToLoad ) {
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return array();
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}
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// Look for notifications with base = 1
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$conds = array(
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'notification_user' => $user->getID(),
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'event_type' => $eventTypesToLoad,
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'notification_bundle_base' => 1
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);
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$offset = $this->extractQueryOffset( $continue );
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// Start points are specified
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if ( $offset['timestamp'] && $offset['offset'] ) {
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$ts = $dbr->addQuotes( $dbr->timestamp( $offset['timestamp'] ) );
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// The offset and timestamp are those of the first notification we want to return
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$conds[] = "notification_timestamp < $ts OR ( notification_timestamp = $ts AND notification_event <= " . $offset['offset'] . " )";
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}
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$res = $dbr->select(
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array( 'echo_notification', 'echo_event' ),
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'*',
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$conds,
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__METHOD__,
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array(
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'ORDER BY' => 'notification_timestamp DESC, notification_event DESC',
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'LIMIT' => $limit,
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),
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array(
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'echo_event' => array( 'LEFT JOIN', 'notification_event=event_id' ),
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)
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);
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return iterator_to_array( $res, false );
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}
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/**
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* @param $user User
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* @param $bundleHash string the bundle hash
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* @param $type string
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* @return ResultWrapper|bool
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*/
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public function getRawBundleData( $user, $bundleHash, $type = 'web' ) {
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$dbr = MWEchoDbFactory::getDB( DB_SLAVE );
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// We only display 99+ if the number is over 100, we can do limit 250, this should be sufficient
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// to return 99 distinct group iterators, avoid select count( distinct ) for the folliwng:
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// 1. it will not scale for large volume data
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// 2. notification may have random grouping iterator
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// 2. agent may be anonymous, can't do distinct over two columens: event_agent_id and event_agent_ip
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if ( $type == 'web' ) {
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$res = $dbr->select(
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array( 'echo_notification', 'echo_event' ),
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array(
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'event_agent_id',
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'event_agent_ip',
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'event_extra',
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'event_page_id'
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),
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array(
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'notification_event=event_id',
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'notification_user' => $user->getId(),
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'notification_bundle_base' => 0,
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'notification_bundle_display_hash' => $bundleHash
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),
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__METHOD__,
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array( 'ORDER BY' => 'notification_timestamp DESC', 'LIMIT' => 250 )
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);
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// this would be email for now
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} else {
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$res = $dbr->select(
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array( 'echo_email_batch', 'echo_event' ),
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array(
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'event_agent_id',
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'event_agent_ip',
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'event_extra',
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'event_page_id'
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),
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array(
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'eeb_event_id=event_id',
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'eeb_user_id' => $user->getId(),
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'eeb_event_hash' => $bundleHash
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),
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__METHOD__,
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array( 'ORDER BY' => 'eeb_event_id DESC', 'LIMIT' => 250 )
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);
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}
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return $res;
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}
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/**
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* Get the last bundle stat - read_timestamp & bundle_display_hash
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* @param $user User
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* @param $bundleHash string The hash used to identify a set of bundle-able events
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* @return ResultWrapper|bool
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*/
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public function getLastBundleStat( $user, $bundleHash ) {
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$dbr = MWEchoDbFactory::getDB( DB_SLAVE );
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$res = $dbr->selectRow(
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array( 'echo_notification' ),
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array( 'notification_read_timestamp', 'notification_bundle_display_hash' ),
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array(
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'notification_user' => $user->getId(),
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'notification_bundle_hash' => $bundleHash
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),
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__METHOD__,
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array( 'ORDER BY' => 'notification_timestamp DESC', 'LIMIT' => 1 )
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);
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return $res;
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}
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/**
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* @param $row array
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* @return int
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*/
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public function createEvent( $row ) {
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$dbw = MWEchoDbFactory::getDB( DB_MASTER );
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$id = $dbw->nextSequenceValue( 'echo_event_id' );
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if ( $id ) {
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$row['event_id'] = $id;
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}
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$dbw->insert( 'echo_event', $row, __METHOD__ );
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if ( !$id ) {
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$id = $dbw->insertId();
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}
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return $id;
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}
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/**
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* @param $id int
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* @param $fromMaster bool
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* @return ResultWrapper
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* @throws MWException
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*/
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public function loadEvent( $id, $fromMaster = false ) {
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$db = $fromMaster ? MWEchoDbFactory::getDB( DB_MASTER ) : MWEchoDbFactory::getDB( DB_SLAVE );
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$row = $db->selectRow( 'echo_event', '*', array( 'event_id' => $id ), __METHOD__ );
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if ( !$row && !$fromMaster ) {
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return $this->loadEvent( $id, true );
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} elseif ( !$row ) {
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throw new MWException( "No EchoEvent found with ID: $id" );
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}
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return $row;
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}
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/**
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* @param $event EchoEvent
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*/
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public function updateEventExtra( $event ) {
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$dbw = MWEchoDbFactory::getDB( DB_MASTER );
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$dbw->update(
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'echo_event',
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array( 'event_extra' => $event->serializeExtra() ),
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array( 'event_id' => $event->getId() ),
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__METHOD__
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);
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}
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/**
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* @param $user User
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* @param $eventIDs array
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*/
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public function markRead( $user, $eventIDs ) {
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if ( !$eventIDs ) {
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return;
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}
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$dbw = MWEchoDbFactory::getDB( DB_MASTER );
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$dbw->update(
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'echo_notification',
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array( 'notification_read_timestamp' => $dbw->timestamp( wfTimestampNow() ) ),
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array(
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'notification_user' => $user->getId(),
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'notification_event' => $eventIDs,
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'notification_read_timestamp' => null,
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),
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__METHOD__
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);
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}
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/**
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* @param $user User
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*/
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public function markAllRead( $user ) {
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$dbw = MWEchoDbFactory::getDB( DB_MASTER );
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$dbw->update(
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'echo_notification',
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array( 'notification_read_timestamp' => $dbw->timestamp( wfTimestampNow() ) ),
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array(
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'notification_user' => $user->getId(),
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'notification_read_timestamp' => NULL,
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'notification_bundle_base' => 1,
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),
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__METHOD__
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);
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}
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/**
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* @param $user User object to check notifications for
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* @param $dbSource string use master or slave storage to pull count
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* @return int
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*/
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public function getNotificationCount( $user, $dbSource ) {
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// double check
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if ( !in_array( $dbSource, array( DB_SLAVE, DB_MASTER ) ) ) {
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$dbSource = DB_SLAVE;
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}
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$eventTypesToLoad = EchoNotificationController::getUserEnabledEvents( $user, 'web' );
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if ( !$eventTypesToLoad ) {
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return 0;
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}
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global $wgEchoMaxNotificationCount;
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$db = MWEchoDbFactory::getDB( $dbSource );
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$res = $db->select(
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array( 'echo_notification', 'echo_event' ),
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array( 'notification_event' ),
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array(
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'notification_user' => $user->getId(),
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'notification_bundle_base' => 1,
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'notification_read_timestamp' => null,
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'event_type' => $eventTypesToLoad,
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),
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__METHOD__,
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array( 'LIMIT' => $wgEchoMaxNotificationCount + 1 ),
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array(
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'echo_event' => array( 'LEFT JOIN', 'notification_event=event_id' ),
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)
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);
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return $db->numRows( $res );
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}
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/**
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* IMPORTANT: should only call this function if the number of unread notification
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* is reasonable, for example, unread notification count is less than the max
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* display defined in $wgEchoMaxNotificationCount
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* @param $user User
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* @param $type string
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* @return array
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*/
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public function getUnreadNotifications( $user, $type ) {
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$dbr = MWEchoDbFactory::getDB( DB_SLAVE );
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$res = $dbr->select(
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array( 'echo_notification', 'echo_event' ),
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array( 'notification_event' ),
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array(
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'notification_user' => $user->getId(),
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'notification_bundle_base' => 1,
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'notification_read_timestamp' => null,
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'event_type' => $type,
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'notification_event = event_id'
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),
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__METHOD__
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);
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$eventIds = array();
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foreach ( $res as $row ) {
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$eventIds[$row->notification_event] = $row->notification_event;
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}
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return $eventIds;
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}
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}
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