MediaWiki REL1_33
clearInterwikiCache.php
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1<?php
24require_once __DIR__ . '/Maintenance.php';
25
31class ClearInterwikiCache extends Maintenance {
32
33 public function __construct() {
34 parent::__construct();
35 $this->addDescription( 'Clear all interwiki links for all languages from the cache' );
36 }
37
38 public function execute() {
39 global $wgLocalDatabases, $wgMemc;
40 $dbr = $this->getDB( DB_REPLICA );
41 $res = $dbr->select( 'interwiki', [ 'iw_prefix' ], '', __METHOD__ );
42 $prefixes = [];
43 foreach ( $res as $row ) {
44 $prefixes[] = $row->iw_prefix;
45 }
46
47 foreach ( $wgLocalDatabases as $db ) {
48 $this->output( "$db..." );
49 foreach ( $prefixes as $prefix ) {
50 $wgMemc->delete( "$db:interwiki:$prefix" );
51 }
52 $this->output( "done\n" );
53 }
54 }
55}
56
57$maintClass = ClearInterwikiCache::class;
58require_once RUN_MAINTENANCE_IF_MAIN;
$wgLocalDatabases
string[] $wgLocalDatabases
Other wikis on this site, can be administered from a single developer account.
Definition DefaultSettings.php:2161
ClearInterwikiCache
Maintenance script to clear the cache of interwiki prefixes for all local wikis.
Definition clearInterwikiCache.php:31
ClearInterwikiCache\execute
execute()
Do the actual work.
Definition clearInterwikiCache.php:38
ClearInterwikiCache\__construct
__construct()
Default constructor.
Definition clearInterwikiCache.php:33
Maintenance
Abstract maintenance class for quickly writing and churning out maintenance scripts with minimal effo...
Definition maintenance.txt:39
Maintenance\output
output( $out, $channel=null)
Throw some output to the user.
Definition Maintenance.php:434
Maintenance\getDB
getDB( $db, $groups=[], $wiki=false)
Returns a database to be used by current maintenance script.
Definition Maintenance.php:1373
Maintenance\addDescription
addDescription( $text)
Set the description text.
Definition Maintenance.php:329
$res
$res
Definition database.txt:21
as
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
Definition distributors.txt:22
$wgMemc
globals will be eliminated from MediaWiki replaced by an application object which would be passed to constructors Whether that would be an convenient solution remains to be but certainly PHP makes such object oriented programming models easier than they were in previous versions For the time being MediaWiki programmers will have to work in an environment with some global context At the time of globals were initialised on startup by MediaWiki of these were configuration which are documented in DefaultSettings php There is no comprehensive documentation for the remaining however some of the most important ones are listed below They are typically initialised either in index php or in Setup php $wgTitle Title object created from the request URL $wgOut OutputPage object for HTTP response $wgUser User object for the user associated with the current request $wgLang Language object selected by user preferences $wgContLang Language object associated with the wiki being viewed $wgParser Parser object Parser extensions register their hooks here $wgRequest WebRequest to get request data $wgMemc
Definition globals.txt:64
php
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition injection.txt:37
RUN_MAINTENANCE_IF_MAIN
require_once RUN_MAINTENANCE_IF_MAIN
Definition maintenance.txt:50
DB_REPLICA
const DB_REPLICA
Definition defines.php:25