mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Echo
synced 2024-11-24 07:54:13 +00:00
315 lines
7.8 KiB
PHP
315 lines
7.8 KiB
PHP
<?php
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/**
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* Handles email batch for a user
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*/
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class MWEchoEmailBatch {
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// the user to be notified
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protected $mUser;
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// list of email content
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protected $content = array();
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// the last notification event of this batch
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protected $lastEvent;
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// the event count, this count is supported up to self::$displaySize + 1
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protected $count = 0;
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// number of events to include in an email, we couldn't include
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// all events in a batch email
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protected static $displaySize = 10;
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/**
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* @param $user User
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*/
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public function __construct( User $user ) {
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$this->mUser = $user;
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}
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/**
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* Factory method to determine whether to create a batch instance for this
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* user based on the user setting, this assumes the following value for
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* member setting for echo-email-frequency
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* -1 - no email
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* 0 - instant
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* 1 - once everyday
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* 7 - once every 7 days
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* @param $userId int
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* @return MWEchoEmailBatch/false
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*/
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public static function newFromUserId( $userId ) {
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$user = User::newFromId( intval( $userId ) );
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$userEmailSetting = intval( $user->getOption( 'echo-email-frequency' ) );
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// clear all existing events if user decides not to receive emails
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if ( $userEmailSetting == -1 ) {
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$emailBatch = new MWEchoEmailBatch( $user );
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$emailBatch->clearProcessedEvent();
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return false;
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}
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$userLastBatch = $user->getOption( 'echo-email-last-batch' );
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// send email batch, if
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// 1. it has been long enough since last email batch based on frequency
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// 2. there is no last batch timestamp recorded for the user
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// 3. user has switched from batch to instant email, send events left in the queue
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if ( $userLastBatch ) {
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// use 20 as hours per day to get estimate
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$nextBatch = wfTimestamp( TS_UNIX, $userLastBatch ) + $userEmailSetting * 20 * 60 * 60;
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if ( wfTimestamp( TS_MW, $nextBatch ) > wfTimestampNow() ) {
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return false;
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}
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}
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return new MWEchoEmailBatch( $user );
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}
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/**
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* Wrapper function that calls other functions required to process email batch
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*/
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public function process() {
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wfProfileIn( __METHOD__ );
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// if there is no event for this user, exist the process
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if ( !$this->setLastEvent() ) {
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return;
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}
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// get valid events
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$events = $this->getEvents();
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if ( $events ) {
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foreach( $events as $batchId => $row ) {
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$this->count++;
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if ( $this->count > self::$displaySize ) {
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break;
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}
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$event = EchoEvent::newFromRow( $row );
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$this->appendContent( $event );
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}
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$this->sendEmail();
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}
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$this->clearProcessedEvent();
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$this->updateUserLastBatchTimestamp();
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wfProfileOut( __METHOD__ );
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}
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/**
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* Set the last event of this batch, this is a cutoff point for clearing
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* processed/invalid events
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*
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* @return bool true if event exists false otherwise
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*/
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protected function setLastEvent() {
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$dbr = wfGetDB( DB_SLAVE );
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$res = $dbr->selectField(
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array( 'echo_email_batch' ),
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array( 'MAX( eeb_event_id )' ),
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array( 'eeb_user_id' => $this->mUser->getId() ),
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__METHOD__
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);
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if ( $res ) {
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$this->lastEvent = $res;
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return true;
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} else {
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return false;
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}
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}
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/**
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* Update the user's last batch timestamp after a successful batch
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*/
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protected function updateUserLastBatchTimestamp() {
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$this->mUser->setOption( 'echo-email-last-batch', wfTimestampNow() );
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$this->mUser->saveSettings();
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$this->mUser->invalidateCache();
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}
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/**
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* Get the events queued for the current user
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* @return array
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*/
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protected function getEvents() {
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$events = array();
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$validEvents = EchoEvent::gatherValidEchoEvents();
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if ( $validEvents ) {
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$dbr = wfGetDB( DB_SLAVE );
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$conds = array(
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'eeb_user_id' => $this->mUser->getId(),
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'event_id = eeb_event_id',
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'event_type' => $validEvents
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);
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if ( $this->lastEvent ) {
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$conds[] = 'eeb_event_id <= ' . intval( $this->lastEvent );
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}
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$res = $dbr->select(
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array( 'echo_email_batch', 'echo_event' ),
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array( '*' ),
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$conds,
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__METHOD__,
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array( 'ORDER BY' => 'eeb_event_priority, eeb_event_id', 'LIMIT' => self::$displaySize + 1 )
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);
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foreach( $res as $row ) {
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$events[$row->eeb_id] = $row;
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}
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}
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return $events;
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}
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/**
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* Add individual event template to the big email content
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*/
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protected function appendContent( $event ) {
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global $wgEchoEventDetails;
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// get the category for this event
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$category = 'other';
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if ( isset( $wgEchoEventDetails[$event->getType()]['category'] ) ) {
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$category = $wgEchoEventDetails[$event->getType()]['category'];
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}
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$email = EchoNotificationController::formatNotification( $event, $this->mUser, 'email' );
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if ( !isset( $this->content[$category] ) ) {
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$this->content[$category] = array();
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}
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$this->content[$category][] = $email['batch-body'];
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}
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/**
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* Concatenate the list of contents with 'echo-email-batch-separator'
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* grouped by category
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* @return string
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*/
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protected function listToText() {
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if ( !$this->content ) {
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return '';
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}
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$result = array();
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// build the text section for each category
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foreach( $this->content as $category => $notifs ) {
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$output = wfMessage( 'echo-email-batch-category-header-' . $category )->params( count( $notifs ) )->text() . "\n";
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foreach( $notifs as $notif ) {
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$output .= "\n " . wfMessage( 'echo-email-batch-bullet' )->text() . ' ' . $notif;
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}
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$result[] = $output;
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}
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// for prepending and appending 'echo-email-batch-separator'
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$result = array_merge( array( '' ), $result, array( '' ) );
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return trim(
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implode(
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"\n\n" . wfMessage( 'echo-email-batch-separator' )->text() . "\n\n",
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$result
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)
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);
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}
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/**
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* Clear "processed" events in the queue, processed could be: email sent, invalid, users do not want to receive emails
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*/
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public function clearProcessedEvent() {
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$conds = array( 'eeb_user_id' => $this->mUser->getId() );
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// there is a processed cutoff point
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if ( $this->lastEvent ) {
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$conds[] = 'eeb_event_id <= ' . intval( $this->lastEvent );
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}
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$dbw = wfGetDB( DB_MASTER );
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$dbw->delete(
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'echo_email_batch',
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$conds,
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__METHOD__,
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array()
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);
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}
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/**
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* Send the batch email
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*/
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public function sendEmail() {
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global $wgPasswordSender, $wgPasswordSenderName, $wgEchoEmailFooterAddress;
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// global email footer
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$footer = wfMessage( 'echo-email-footer-default' )
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->inLanguage( $this->mUser->getOption( 'language' ) )
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->params( $wgEchoEmailFooterAddress, '' )
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->text();
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// @Todo - replace them with the CONSTANT in 33810 once it is merged
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if ( $this->mUser->getOption( 'echo-email-frequency' ) == 7 ) {
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$frequency = 'weekly';
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} else {
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$frequency = 'daily';
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}
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// email subject
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if ( $this->count > self::$displaySize ) {
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$count = wfMessage( 'echo-notification-count' )->params( self::$displaySize )->text();
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} else {
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$count = $this->count;
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}
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$subject = wfMessage( 'echo-email-batch-subject-' . $frequency )->params( $count, $this->count )->text();
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$body = wfMessage( 'echo-email-batch-body-' . $frequency )->params(
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$this->mUser->getName(),
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$count,
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$this->count,
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$this->listToText(),
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$footer
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)->text();
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$adminAddress = new MailAddress( $wgPasswordSender, $wgPasswordSenderName );
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$address = new MailAddress( $this->mUser );
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$params = array(
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'to' => $address,
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'from' => $adminAddress,
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'subj' => $subject,
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'body' => $body,
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// no replyto
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'replyto' => ''
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);
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$job = new EmaillingJob( null, $params );
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JobQueueGroup::singleton()->push( $job );
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}
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/**
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* Insert notification event into email queue
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* @param $userId int
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* @param $eventId int
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* @param $priority int
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*/
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public static function addToQueue( $userId, $eventId, $priority ) {
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if ( !$userId || !$eventId ) {
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return;
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}
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$dbw = wfGetDB( DB_MASTER );
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$dbw->insert(
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'echo_email_batch',
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array(
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'eeb_user_id' => $userId,
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'eeb_event_id' => $eventId,
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'eeb_event_priority' => $priority
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),
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__METHOD__,
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array( 'IGNORE' )
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);
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}
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}
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