MediaWiki  1.29.1
DeleteLinksJob.php
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1 <?php
24 
33 class DeleteLinksJob extends Job {
35  parent::__construct( 'deleteLinks', $title, $params );
36  $this->removeDuplicates = true;
37  }
38 
39  function run() {
40  if ( is_null( $this->title ) ) {
41  $this->setLastError( "deleteLinks: Invalid title" );
42  return false;
43  }
44 
45  $pageId = $this->params['pageId'];
46 
47  // Serialize links updates by page ID so they see each others' changes
48  $scopedLock = LinksUpdate::acquirePageLock( wfGetDB( DB_MASTER ), $pageId, 'job' );
49 
50  if ( WikiPage::newFromID( $pageId, WikiPage::READ_LATEST ) ) {
51  // The page was restored somehow or something went wrong
52  $this->setLastError( "deleteLinks: Page #$pageId exists" );
53  return false;
54  }
55 
56  $factory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory();
57  $timestamp = isset( $this->params['timestamp'] ) ? $this->params['timestamp'] : null;
58  $page = WikiPage::factory( $this->title ); // title when deleted
59 
60  $update = new LinksDeletionUpdate( $page, $pageId, $timestamp );
61  $update->setTransactionTicket( $factory->getEmptyTransactionTicket( __METHOD__ ) );
62  $update->doUpdate();
63 
64  return true;
65  }
66 }
DeleteLinksJob
Job to prune link tables for pages that were deleted.
Definition: DeleteLinksJob.php:33
LinksUpdate\acquirePageLock
static acquirePageLock(IDatabase $dbw, $pageId, $why='atomicity')
Acquire a lock for performing link table updates for a page on a DB.
Definition: LinksUpdate.php:203
Job\$title
Title $title
Definition: Job.php:42
Job\$params
array $params
Array of job parameters.
Definition: Job.php:36
Job\setLastError
setLastError( $error)
Definition: Job.php:393
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:35
Job
Class to both describe a background job and handle jobs.
Definition: Job.php:31
WikiPage\factory
static factory(Title $title)
Create a WikiPage object of the appropriate class for the given title.
Definition: WikiPage.php:120
wfGetDB
wfGetDB( $db, $groups=[], $wiki=false)
Get a Database object.
Definition: GlobalFunctions.php:3060
$page
do that in ParserLimitReportFormat instead use this to modify the parameters of the image and a DIV can begin in one section and end in another Make sure your code can handle that case gracefully See the EditSectionClearerLink extension for an example zero but section is usually empty its values are the globals values before the output is cached $page
Definition: hooks.txt:2536
DB_MASTER
const DB_MASTER
Definition: defines.php:26
title
title
Definition: parserTests.txt:211
WikiPage\newFromID
static newFromID( $id, $from='fromdb')
Constructor from a page id.
Definition: WikiPage.php:158
LinksDeletionUpdate
Update object handling the cleanup of links tables after a page was deleted.
Definition: LinksDeletionUpdate.php:29
DeleteLinksJob\__construct
__construct(Title $title, array $params)
Definition: DeleteLinksJob.php:34
Title
Represents a title within MediaWiki.
Definition: Title.php:39
MediaWikiServices
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 MediaWikiServices
Definition: injection.txt:23
DeleteLinksJob\run
run()
Run the job.
Definition: DeleteLinksJob.php:39
array
the array() calling protocol came about after MediaWiki 1.4rc1.