*/
use MediaWiki\Logger\LoggerFactory;
+use MediaWiki\MediaWikiServices;
+use MediaWiki\Services\ServiceDisabledException;
/**
* Functions to get cache objects
return self::getInstance( $candidate );
}
}
- return self::getInstance( CACHE_DB );
+
+ try {
+ // Make sure we actually have a DB backend before falling back to CACHE_DB
+ MediaWikiServices::getInstance()->getDBLoadBalancer();
+ $candidate = CACHE_DB;
+ } catch ( ServiceDisabledException $e ) {
+ // The LoadBalancer is disabled, probably because
+ // MediaWikiServices::disableStorageBackend was called.
+ $candidate = CACHE_NONE;
+ }
+
+ return self::getInstance( $candidate );
}
/**
$params = $wgWANObjectCaches[$id];
foreach ( $params['channels'] as $action => $channel ) {
- $params['relayers'][$action] = EventRelayerGroup::singleton()->getRelayer( $channel );
+ $params['relayers'][$action] = MediaWikiServices::getInstance()->getEventRelayerGroup()
+ ->getRelayer( $channel );
$params['channels'][$action] = $channel;
}
$params['cache'] = self::newFromId( $params['cacheId'] );