mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Echo
synced 2024-11-28 17:50:39 +00:00
69 lines
1.4 KiB
PHP
69 lines
1.4 KiB
PHP
<?php
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/**
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* Cache class that maps revision id to Revision object
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*/
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class EchoRevisionLocalCache extends EchoLocalCache {
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/**
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* @var EchoRevisionLocalCache
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*/
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private static $instance;
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/**
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* The current wiki id
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* @var string|null
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*/
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private static $wiki;
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/**
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* Create a EchoRevisionLocalCache object
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* @return EchoRevisionLocalCache
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*/
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public static function create() {
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// A job queue may run against multiple wikis,
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// initialize a new one for the current wiki
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if ( wfWikiId() != self::$wiki ) {
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self::$instance = null;
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self::$wiki = wfWikiId();
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}
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if ( !self::$instance ) {
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self::$instance = new EchoRevisionLocalCache();
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}
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return self::$instance;
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}
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/**
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* {@inheritDoc}
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*/
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protected function resolve() {
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if ( $this->lookups ) {
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// @Todo Add newFromIds() to Revision
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$dbr = wfGetDB( DB_SLAVE );
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$fields = array_merge(
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Revision::selectFields(),
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Revision::selectPageFields(),
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Revision::selectUserFields()
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);
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$res = $dbr->select(
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array( 'revision', 'page', 'user' ),
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$fields,
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array( 'rev_id' => $this->lookups ),
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__METHOD__,
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array(),
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array(
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'page' => Revision::pageJoinCond(),
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'user' => Revision::userJoinCond()
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)
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);
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if ( $res ) {
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foreach ( $res as $row ) {
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$this->targets->set( $row->rev_id, new Revision( $row ) );
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}
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$this->lookups = array();
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}
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}
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}
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}
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