MediaWiki  master
deleteDefaultMessages.php
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1 <?php
25 require_once __DIR__ . '/Maintenance.php';
26 
34  public function __construct() {
35  parent::__construct();
36  $this->addDescription( 'Deletes all pages in the MediaWiki namespace' .
37  ' which were last edited by "MediaWiki default"' );
38  $this->addOption( 'dry-run', 'Perform a dry run, delete nothing' );
39  }
40 
41  public function execute() {
42  global $wgUser;
43 
44  $this->output( "Checking existence of old default messages..." );
45  $dbr = $this->getDB( DB_REPLICA );
46 
47  $actorQuery = ActorMigration::newMigration()
48  ->getWhere( $dbr, 'rev_user', User::newFromName( 'MediaWiki default' ) );
49  $res = $dbr->select(
50  [ 'page', 'revision' ] + $actorQuery['tables'],
51  [ 'page_namespace', 'page_title' ],
52  [
53  'page_namespace' => NS_MEDIAWIKI,
54  $actorQuery['conds'],
55  ],
56  __METHOD__,
57  [],
58  [ 'revision' => [ 'JOIN', 'page_latest=rev_id' ] ] + $actorQuery['joins']
59  );
60 
61  if ( $dbr->numRows( $res ) == 0 ) {
62  // No more messages left
63  $this->output( "done.\n" );
64  return;
65  }
66 
67  $dryrun = $this->hasOption( 'dry-run' );
68  if ( $dryrun ) {
69  foreach ( $res as $row ) {
70  $title = Title::makeTitle( $row->page_namespace, $row->page_title );
71  $this->output( "\n* [[$title]]" );
72  }
73  $this->output( "\n\nRun again without --dry-run to delete these pages.\n" );
74  return;
75  }
76 
77  // Deletions will be made by $user temporarly added to the bot group
78  // in order to hide it in RecentChanges.
79  $user = User::newFromName( 'MediaWiki default' );
80  if ( !$user ) {
81  $this->fatalError( "Invalid username" );
82  }
83  $user->addGroup( 'bot' );
84  $wgUser = $user;
85 
86  // Handle deletion
87  $this->output( "\n...deleting old default messages (this may take a long time!)...", 'msg' );
88  $dbw = $this->getDB( DB_MASTER );
89 
90  foreach ( $res as $row ) {
92  $dbw->ping();
93  $title = Title::makeTitle( $row->page_namespace, $row->page_title );
94  $page = WikiPage::factory( $title );
95  $error = ''; // Passed by ref
96  // FIXME: Deletion failures should be reported, not silently ignored.
97  $page->doDeleteArticle( 'No longer required', false, 0, true, $error, $user );
98  }
99 
100  $this->output( "done!\n", 'msg' );
101  }
102 }
103 
104 $maintClass = DeleteDefaultMessages::class;
105 require_once RUN_MAINTENANCE_IF_MAIN;
static factory(Title $title)
Create a WikiPage object of the appropriate class for the given title.
Definition: WikiPage.php:142
const RUN_MAINTENANCE_IF_MAIN
Definition: Maintenance.php:39
Maintenance script that deletes all pages in the MediaWiki namespace which were last edited by "Media...
Abstract maintenance class for quickly writing and churning out maintenance scripts with minimal effo...
Definition: Maintenance.php:82
hasOption( $name)
Checks to see if a particular option exists.
const DB_MASTER
Definition: defines.php:26
static newMigration()
Static constructor.
wfWaitForSlaves( $ifWritesSince=null, $wiki=false, $cluster=false, $timeout=null)
Waits for the replica DBs to catch up to the master position.
addDescription( $text)
Set the description text.
output( $out, $channel=null)
Throw some output to the user.
const NS_MEDIAWIKI
Definition: Defines.php:68
static makeTitle( $ns, $title, $fragment='', $interwiki='')
Create a new Title from a namespace index and a DB key.
Definition: Title.php:586
addOption( $name, $description, $required=false, $withArg=false, $shortName=false, $multiOccurrence=false)
Add a parameter to the script.
const DB_REPLICA
Definition: defines.php:25
fatalError( $msg, $exitCode=1)
Output a message and terminate the current script.
static newFromName( $name, $validate='valid')
Static factory method for creation from username.
Definition: User.php:515
getDB( $db, $groups=[], $dbDomain=false)
Returns a database to be used by current maintenance script.