mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Echo
synced 2024-11-14 11:16:16 +00:00
e520e764c4
This makes sure resetNotificationCount() actually affects all DCs Change-Id: If1af121b54d2ec50473a55308d8326f24a1b43b8
498 lines
15 KiB
PHP
498 lines
15 KiB
PHP
<?php
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/**
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* Entity that represents a notification target user
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*/
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class MWEchoNotifUser {
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/**
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* Notification target user
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* @var User
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*/
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private $mUser;
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/**
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* Object cache
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* @var BagOStuff
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*/
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private $cache;
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/**
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* Database access gateway
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* @var EchoUserNotificationGateway
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*/
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private $userNotifGateway;
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/**
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* Notification mapper
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* @var EchoNotificationMapper
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*/
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private $notifMapper;
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/**
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* Target page mapper
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* @var EchoTargetPageMapper
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*/
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private $targetPageMapper;
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/**
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* @var EchoForeignNotifications
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*/
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private $foreignNotifications;
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/**
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* @var array
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*/
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private $cached;
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// The max notification count shown in badge
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// The max number shown in bundled message, eg, <user> and 99+ others <action>.
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// This is really a totally separate thing, and could be its own constant.
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// WARNING: If you change this, you should also change all references in the
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// i18n messages (100 and 99) in all repositories using Echo.
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const MAX_BADGE_COUNT = 99;
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/**
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* Usually client code doesn't need to initialize the object directly
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* because it could be obtained from factory method newFromUser()
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* @param User $user
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* @param BagOStuff $cache
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* @param EchoUserNotificationGateway $userNotifGateway
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* @param EchoNotificationMapper $notifMapper
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* @param EchoTargetPageMapper $targetPageMapper
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*/
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public function __construct(
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User $user,
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BagOStuff $cache,
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EchoUserNotificationGateway $userNotifGateway,
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EchoNotificationMapper $notifMapper,
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EchoTargetPageMapper $targetPageMapper
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) {
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$this->mUser = $user;
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$this->userNotifGateway = $userNotifGateway;
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$this->cache = $cache;
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$this->notifMapper = $notifMapper;
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$this->targetPageMapper = $targetPageMapper;
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$this->foreignNotifications = new EchoForeignNotifications( $user );
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}
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/**
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* Factory method
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* @param $user User
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* @throws MWException
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* @return MWEchoNotifUser
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*/
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public static function newFromUser( User $user ) {
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if ( $user->isAnon() ) {
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throw new MWException( 'User must be logged in to view notification!' );
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}
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return new MWEchoNotifUser(
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$user,
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ObjectCache::getMainStashInstance(),
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new EchoUserNotificationGateway( $user, MWEchoDbFactory::newFromDefault() ),
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new EchoNotificationMapper(),
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new EchoTargetPageMapper()
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);
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}
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/**
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* Clear talk page notification when users visit their talk pages. This
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* only resets if the notification count is less than max notification
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* count. If the user has 99+ notifications, decrementing 1 bundled talk
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* page notification would not really affect the count
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*/
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public function clearTalkNotification() {
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// There is no new talk notification
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if ( $this->cache->get( $this->getTalkNotificationCacheKey() ) === '0' ) {
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return;
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}
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// Do nothing if the count display meets the max 99+
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if ( $this->notifCountHasReachedMax() ) {
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return;
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}
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// Mark the talk page notification as read
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$this->markRead(
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$this->userNotifGateway->getUnreadNotifications(
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'edit-user-talk'
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)
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);
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$this->flagCacheWithNoTalkNotification();
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}
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/**
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* Flag the cache with new talk notification
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*/
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public function flagCacheWithNewTalkNotification() {
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$this->cache->set( $this->getTalkNotificationCacheKey(), '1', 86400 );
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}
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/**
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* Flag the cache with no talk notification
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*/
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public function flagCacheWithNoTalkNotification() {
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$this->cache->set( $this->getTalkNotificationCacheKey(), '0', 86400 );
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}
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/**
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* Memcache key for talk notification
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*/
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public function getTalkNotificationCacheKey() {
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global $wgEchoConfig;
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return wfMemcKey( 'echo-new-talk-notification', $this->mUser->getId(), $wgEchoConfig['version'] );
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}
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/**
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* Check if the user has more notification count than max count display
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* @return bool
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*/
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public function notifCountHasReachedMax() {
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if ( $this->getNotificationCount() >= self::MAX_BADGE_COUNT ) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* Get message count for this user.
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*
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* @param boolean $cached Set to false to bypass the cache. (Optional. Defaults to true)
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* @param int $dbSource Use master or slave database to pull count (Optional. Defaults to DB_SLAVE)
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* @return int
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*/
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public function getMessageCount( $cached = true, $dbSource = DB_SLAVE ) {
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$count = $this->getNotificationCount( $cached, $dbSource, EchoAttributeManager::MESSAGE );
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$count += $this->foreignNotifications->getCount( EchoAttributeManager::MESSAGE );
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return $count;
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}
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/**
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* Get alert count for this user.
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*
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* @param boolean $cached Set to false to bypass the cache. (Optional. Defaults to true)
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* @param int $dbSource Use master or slave database to pull count (Optional. Defaults to DB_SLAVE)
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* @return int
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*/
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public function getAlertCount( $cached = true, $dbSource = DB_SLAVE ) {
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$count = $this->getNotificationCount( $cached, $dbSource, EchoAttributeManager::ALERT );
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$count += $this->foreignNotifications->getCount( EchoAttributeManager::ALERT );
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return $count;
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}
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/**
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* Retrieves number of unread notifications that a user has, would return
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* MWEchoNotifUser::MAX_BADGE_COUNT + 1 at most
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*
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* @param boolean $cached Set to false to bypass the cache. (Optional. Defaults to true)
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* @param int $dbSource Use master or slave database to pull count (Optional. Defaults to DB_SLAVE)
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* @param string $section Notification section
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* @return int
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*/
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public function getNotificationCount( $cached = true, $dbSource = DB_SLAVE, $section = EchoAttributeManager::ALL ) {
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if ( $this->mUser->isAnon() ) {
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return 0;
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}
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$memcKey = $this->getMemcKey( 'echo-notification-count' . ( $section === EchoAttributeManager::ALL ? '' : ( '-' . $section ) ) );
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if ( $cached ) {
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$data = $this->getFromCache( $memcKey );
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if ( $data !== false && $data !== null ) {
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return (int)$data;
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}
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}
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$attributeManager = EchoAttributeManager::newFromGlobalVars();
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if ( $section === EchoAttributeManager::ALL ) {
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$eventTypesToLoad = $attributeManager->getUserEnabledEvents( $this->mUser, 'web' );
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} else {
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$eventTypesToLoad = $attributeManager->getUserEnabledEventsbySections( $this->mUser, 'web', array( $section ) );
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}
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$count = (int) $this->userNotifGateway->getCappedNotificationCount( $dbSource, $eventTypesToLoad, MWEchoNotifUser::MAX_BADGE_COUNT + 1 );
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$this->cache->set( $memcKey, $count, 86400 );
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return $count;
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}
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/**
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* Get the unread timestamp of the latest alert
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*
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* @param boolean $cached Set to false to bypass the cache. (Optional. Defaults to true)
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* @param int $dbSource Use master or slave database to pull count (Optional. Defaults to DB_SLAVE)
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* @return bool|MWTimestamp
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*/
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public function getLastUnreadAlertTime( $cached = true, $dbSource = DB_SLAVE ) {
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$time = $this->getLastUnreadNotificationTime( $cached, $dbSource, EchoAttributeManager::ALERT );
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$foreignTime = $this->foreignNotifications->getTimestamp( EchoAttributeManager::ALERT );
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if ( $foreignTime !== false ) {
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$max = max( $time ? $time->getTimestamp( TS_MW ) : 0, $foreignTime->getTimestamp( TS_MW ) );
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$time = new MWTimestamp( $max );
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}
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return $time;
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}
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/**
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* Get the unread timestamp of the latest message
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*
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* @param boolean $cached Set to false to bypass the cache. (Optional. Defaults to true)
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* @param int $dbSource Use master or slave database to pull count (Optional. Defaults to DB_SLAVE)
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* @return bool|MWTimestamp
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*/
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public function getLastUnreadMessageTime( $cached = true, $dbSource = DB_SLAVE ) {
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$time = $this->getLastUnreadNotificationTime( $cached, $dbSource, EchoAttributeManager::MESSAGE );
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$foreignTime = $this->foreignNotifications->getTimestamp( EchoAttributeManager::MESSAGE );
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if ( $foreignTime !== false ) {
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$max = max( $time ? $time->getTimestamp( TS_MW ) : 0, $foreignTime->getTimestamp( TS_MW ) );
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$time = new MWTimestamp( $max );
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}
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return $time;
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}
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/**
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* Returns the timestamp of the last unread notification.
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*
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* @param boolean $cached Set to false to bypass the cache. (Optional. Defaults to true)
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* @param int $dbSource Use master or slave database to pull count (Optional. Defaults to DB_SLAVE)
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* @param string $section Notification section
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* @return bool|MWTimestamp Timestamp of last notification, or false if there is none
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*/
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public function getLastUnreadNotificationTime( $cached = true, $dbSource = DB_SLAVE, $section = EchoAttributeManager::ALL ) {
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if ( $this->mUser->isAnon() ) {
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return false;
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}
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$memcKey = $this->getMemcKey( 'echo-notification-timestamp' . ( $section === EchoAttributeManager::ALL ? '' : ( '-' . $section ) ) );
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// read from cache, if allowed
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if ( $cached ) {
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$timestamp = $this->getFromCache( $memcKey );
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if ( $timestamp !== false ) {
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return new MWTimestamp( $timestamp );
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}
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}
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$attributeManager = EchoAttributeManager::newFromGlobalVars();
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if ( $section === EchoAttributeManager::ALL ) {
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$eventTypesToLoad = $attributeManager->getUserEnabledEvents( $this->mUser, 'web' );
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} else {
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$eventTypesToLoad = $attributeManager->getUserEnabledEventsbySections( $this->mUser, 'web', array( $section ) );
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}
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$notifications = $this->notifMapper->fetchUnreadByUser( $this->mUser, 1, null, $eventTypesToLoad, $dbSource );
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if ( $notifications ) {
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$notification = reset( $notifications );
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$timestamp = $notification->getTimestamp();
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// store to cache & return
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$this->cache->set( $memcKey, $timestamp, 86400 );
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return new MWTimestamp( $timestamp );
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}
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return false;
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}
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/**
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* Mark one or more notifications read for a user.
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* @param $eventIds Array of event IDs to mark read
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* @return boolean
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*/
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public function markRead( $eventIds ) {
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$eventIds = array_filter( (array)$eventIds, 'is_numeric' );
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if ( !$eventIds || wfReadOnly() ) {
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return false;
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}
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$res = $this->userNotifGateway->markRead( $eventIds );
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if ( $res ) {
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// Delete records from echo_target_page
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$this->targetPageMapper->deleteByUserEvents( $this->mUser, $eventIds );
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// Update notification count in cache
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$this->resetNotificationCount( DB_MASTER );
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// After this 'mark read', is there any unread edit-user-talk
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// remaining? If not, we should clear the newtalk flag.
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if ( $this->mUser->getNewtalk() ) {
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$unreadEditUserTalk = $this->notifMapper->fetchUnreadByUser( $this->mUser, 1, null, array( 'edit-user-talk' ), DB_MASTER );
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if ( count( $unreadEditUserTalk ) === 0 ) {
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$this->mUser->setNewtalk( false );
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}
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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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* Mark one or more notifications unread for a user.
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* @param $eventIds Array of event IDs to mark unread
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* @return boolean
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*/
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public function markUnRead( $eventIds ) {
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$eventIds = array_filter( (array)$eventIds, 'is_numeric' );
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if ( !$eventIds || wfReadOnly() ) {
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return false;
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}
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$res = $this->userNotifGateway->markUnRead( $eventIds );
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if ( $res ) {
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// Update notification count in cache
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$this->resetNotificationCount( DB_MASTER );
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// After this 'mark unread', is there any unread edit-user-talk?
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// If so, we should add the edit-user-talk flag
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if ( !$this->mUser->getNewtalk() ) {
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$unreadEditUserTalk = $this->notifMapper->fetchUnreadByUser( $this->mUser, 1, null, array( 'edit-user-talk' ), DB_MASTER );
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if ( count( $unreadEditUserTalk ) > 0 ) {
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$this->mUser->setNewtalk( true );
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}
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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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* Attempt to mark all or sections of notifications as read, this only
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* updates up to $wgEchoMaxUpdateCount records per request, see more
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* detail about this in Echo.php, the other reason is that mediawiki
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* database interface doesn't support updateJoin() that would update
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* across multiple tables, we would visit this later
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*
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* @param string[] $sections
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* @return boolean
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*/
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public function markAllRead( array $sections = array( EchoAttributeManager::ALL ) ) {
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if ( wfReadOnly() ) {
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return false;
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}
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global $wgEchoMaxUpdateCount;
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// Mark all sections as read if this is the case
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if ( in_array( EchoAttributeManager::ALL, $sections ) ) {
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$sections = EchoAttributeManager::$sections;
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}
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$attributeManager = EchoAttributeManager::newFromGlobalVars();
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$eventTypes = $attributeManager->getUserEnabledEventsbySections( $this->mUser, 'web', $sections );
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$notifs = $this->notifMapper->fetchUnreadByUser( $this->mUser, $wgEchoMaxUpdateCount, null, $eventTypes );
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$eventIds = array_filter(
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array_map( function ( EchoNotification $notif ) {
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// This should not happen at all, but use 0 in
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// such case so to keep the code running
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if ( $notif->getEvent() ) {
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return $notif->getEvent()->getId();
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} else {
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return 0;
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}
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}, $notifs )
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);
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$res = $this->markRead( $eventIds );
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if ( $res ) {
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// Delete records from echo_target_page
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$this->targetPageMapper->deleteByUserEvents( $this->mUser, $eventIds );
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if ( count( $notifs ) < $wgEchoMaxUpdateCount ) {
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$this->flagCacheWithNoTalkNotification();
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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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* Recalculates the number of notifications that a user has.
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* @param $dbSource int use master or slave database to pull count
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*/
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public function resetNotificationCount( $dbSource = DB_SLAVE ) {
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// Reset notification count for all sections as well
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$this->getNotificationCount( false, $dbSource, EchoAttributeManager::ALL );
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$alertCount = $this->getNotificationCount( false, $dbSource, EchoAttributeManager::ALERT );
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$msgCount = $this->getNotificationCount( false, $dbSource, EchoAttributeManager::MESSAGE );
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$user = $this->mUser;
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// when notification count needs to be updated, last notification may have
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// changed too, so we need to invalidate that cache too
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$this->getLastUnreadNotificationTime( false, $dbSource, EchoAttributeManager::ALL );
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$alertUnread = $this->getLastUnreadNotificationTime( false, $dbSource, EchoAttributeManager::ALERT );
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$msgUnread = $this->getLastUnreadNotificationTime( false, $dbSource, EchoAttributeManager::MESSAGE );
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$this->mUser->invalidateCache();
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DeferredUpdates::addCallableUpdate( function () use ( $user, $alertCount, $alertUnread, $msgCount, $msgUnread ) {
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$uw = EchoUnreadWikis::newFromUser( $user );
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if ( $uw ) {
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$uw->updateCount( wfWikiID(), $alertCount, $alertUnread, $msgCount, $msgUnread );
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}
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} );
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}
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/**
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* Get the user's email notification format
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* @return string
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*/
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public function getEmailFormat() {
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global $wgAllowHTMLEmail;
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if ( $wgAllowHTMLEmail ) {
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return $this->mUser->getOption( 'echo-email-format' );
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} else {
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return EchoHooks::EMAIL_FORMAT_PLAIN_TEXT;
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}
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}
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protected function getFromCache( $memcKey ) {
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if ( $this->cached === null ) {
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$keys = $this->preloadKeys();
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$this->cached = $this->cache->getMulti( $keys );
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// also keep track of cache values that couldn't be found (getMulti
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// omits them...)
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$this->cached += array_fill_keys( $keys, false );
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}
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if ( isset( $this->cached[$memcKey] ) ) {
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return $this->cached[$memcKey];
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}
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return $this->cache->get( $memcKey );
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}
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/**
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* Array of memcached keys to load at once.
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*
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* @return array
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*/
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protected function preloadKeys() {
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$keys = array(
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'echo-notification-timestamp',
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'echo-notification-timestamp-' . EchoAttributeManager::MESSAGE,
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'echo-notification-timestamp-' . EchoAttributeManager::ALERT,
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'echo-notification-count',
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'echo-notification-count-' . EchoAttributeManager::MESSAGE,
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'echo-notification-count-' . EchoAttributeManager::ALERT,
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);
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return array_map( array( $this, 'getMemcKey' ), $keys );
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}
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protected function getMemcKey( $key ) {
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global $wgEchoConfig;
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return wfMemcKey( $key, $this->mUser->getId(), $wgEchoConfig['version'] );
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}
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}
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