MediaWiki  master
Go to the documentation of this file.
1 <?php
27 require_once __DIR__ . '/Maintenance.php';
35  public function __construct() {
36  parent::__construct();
37  $this->addDescription(
38  'Remove all cache entries for ResourceLoader modules from the database' );
39  $this->setBatchSize( 500 );
40  }
42  public function execute() {
43  $this->output( "Cleaning up module_deps table...\n" );
45  $dbw = $this->getDB( DB_MASTER );
46  $res = $dbw->select( 'module_deps', [ 'md_module', 'md_skin' ], [], __METHOD__ );
47  $rows = iterator_to_array( $res, false );
49  $modDeps = $dbw->tableName( 'module_deps' );
50  $i = 1;
51  foreach ( array_chunk( $rows, $this->getBatchSize() ) as $chunk ) {
52  // WHERE ( mod=A AND skin=A ) OR ( mod=A AND skin=B) ..
53  $conds = array_map( function ( stdClass $row ) use ( $dbw ) {
54  return $dbw->makeList( (array)$row, IDatabase::LIST_AND );
55  }, $chunk );
56  $conds = $dbw->makeList( $conds, IDatabase::LIST_OR );
58  $this->beginTransaction( $dbw, __METHOD__ );
59  $dbw->query( "DELETE FROM $modDeps WHERE $conds", __METHOD__ );
60  $numRows = $dbw->affectedRows();
61  $this->output( "Batch $i: $numRows rows\n" );
62  $this->commitTransaction( $dbw, __METHOD__ );
64  $i++;
65  }
67  $this->output( "Done\n" );
68  }
69 }
72 require_once RUN_MAINTENANCE_IF_MAIN;
The wiki should then use memcached to cache various data To use multiple just add more items to the array To increase the weight of a make its entry a array("", 2))
commitTransaction(IDatabase $dbw, $fname)
Commit the transcation on a DB handle and wait for replica DBs to catch up.
do that in ParserLimitReportFormat instead use this to modify the parameters of the image all existing parser cache entries will be invalid To avoid you ll need to handle that somehow(e.g. with the RejectParserCacheValue hook) because MediaWiki won 't do it for you. & $defaults also a ContextSource after deleting those rows but within the same transaction $rows
Definition: hooks.txt:2633
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
Abstract maintenance class for quickly writing and churning out maintenance scripts with minimal effo...
Definition: maintenance.txt:39
setBatchSize( $s=0)
Set the batch size.
Definition: maintenance.txt:50
Definition: defines.php:26
Maintenance script to purge the module_deps database cache table.
const LIST_AND
Definition: Defines.php:43
Definition: database.txt:21
addDescription( $text)
Set the description text.
getDB( $db, $groups=[], $wiki=false)
Returns a database to be used by current maintenance script.
output( $out, $channel=null)
Throw some output to the user.
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:9
const LIST_OR
Definition: Defines.php:46
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:35
you have access to all of the normal MediaWiki so you can get a DB use the etc For full docs on the Maintenance class
Definition: maintenance.txt:52
Returns batch size.
beginTransaction(IDatabase $dbw, $fname)
Begin a transcation on a DB.