MediaWiki REL1_35
nukeNS.php
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1<?php
36require_once __DIR__ . '/Maintenance.php';
37
44class NukeNS extends Maintenance {
45 public function __construct() {
46 parent::__construct();
47 $this->addDescription( 'Remove pages with only 1 revision from any namespace' );
48 $this->addOption( 'delete', "Actually delete the page" );
49 $this->addOption( 'ns', 'Namespace to delete from, default NS_MEDIAWIKI', false, true );
50 $this->addOption( 'all', 'Delete everything regardless of revision count' );
51 }
52
53 public function execute() {
54 $ns = $this->getOption( 'ns', NS_MEDIAWIKI );
55 $delete = $this->hasOption( 'delete' );
56 $all = $this->hasOption( 'all' );
57 $dbw = $this->getDB( DB_MASTER );
58 $this->beginTransaction( $dbw, __METHOD__ );
59
60 $res = $dbw->select( 'page', 'page_title', [ 'page_namespace' => $ns ], __METHOD__ );
61
62 $n_deleted = 0;
63
64 foreach ( $res as $row ) {
65 // echo "$ns_name:".$row->page_title, "\n";
66 $title = Title::makeTitle( $ns, $row->page_title );
67 $id = $title->getArticleID();
68
69 // Get corresponding revisions
70 $revs = $dbw->selectFieldValues(
71 'revision',
72 'rev_id',
73 [ 'rev_page' => $id ],
74 __METHOD__
75 );
76 $count = count( $revs );
77
78 // skip anything that looks modified (i.e. multiple revs)
79 if ( $all || $count == 1 ) {
80 # echo $title->getPrefixedText(), "\t", $count, "\n";
81 $this->output( "delete: " . $title->getPrefixedText() . "\n" );
82
83 // as much as I hate to cut & paste this, it's a little different, and
84 // I already have the id & revs
85 if ( $delete ) {
86 $dbw->delete( 'page', [ 'page_id' => $id ], __METHOD__ );
87 $this->commitTransaction( $dbw, __METHOD__ );
88 // Delete revisions as appropriate
90 $child = $this->runChild( NukePage::class, 'nukePage.php' );
91 '@phan-var NukePage $child';
92 $child->deleteRevisions( $revs );
93 $n_deleted++;
94 }
95 } else {
96 $this->output( "skip: " . $title->getPrefixedText() . "\n" );
97 }
98 }
99 $this->commitTransaction( $dbw, __METHOD__ );
100
101 if ( $n_deleted > 0 ) {
102 $this->purgeRedundantText( true );
103
104 # update statistics - better to decrement existing count, or just count
105 # the page table?
106 $pages = $dbw->selectField( 'site_stats', 'ss_total_pages', [], __METHOD__ );
107 $pages -= $n_deleted;
108 $dbw->update(
109 'site_stats',
110 [ 'ss_total_pages' => $pages ],
111 [ 'ss_row_id' => 1 ],
112 __METHOD__
113 );
114 }
115
116 if ( !$delete ) {
117 $this->output( "To update the database, run the script with the --delete option.\n" );
118 }
119 }
120}
121
122$maintClass = NukeNS::class;
123require_once RUN_MAINTENANCE_IF_MAIN;
getDB()
const RUN_MAINTENANCE_IF_MAIN
Abstract maintenance class for quickly writing and churning out maintenance scripts with minimal effo...
beginTransaction(IDatabase $dbw, $fname)
Begin a transcation on a DB.
commitTransaction(IDatabase $dbw, $fname)
Commit the transcation on a DB handle and wait for replica DBs to catch up.
output( $out, $channel=null)
Throw some output to the user.
hasOption( $name)
Checks to see if a particular option was set.
purgeRedundantText( $delete=true)
Support function for cleaning up redundant text records.
runChild( $maintClass, $classFile=null)
Run a child maintenance script.
addDescription( $text)
Set the description text.
addOption( $name, $description, $required=false, $withArg=false, $shortName=false, $multiOccurrence=false)
Add a parameter to the script.
getOption( $name, $default=null)
Get an option, or return the default.
Maintenance script that removes pages with only one revision from the MediaWiki namespace.
Definition nukeNS.php:44
execute()
Do the actual work.
Definition nukeNS.php:53
__construct()
Default constructor.
Definition nukeNS.php:45
const NS_MEDIAWIKI
Definition Defines.php:78
$maintClass
Definition nukeNS.php:122
const DB_MASTER
Definition defines.php:29