MediaWiki REL1_35
cleanupPreferences.php
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1<?php
27require_once __DIR__ . '/Maintenance.php';
28
35 public function __construct() {
36 parent::__construct();
37 $this->addDescription(
38 'Clean up hidden preferences, removed preferences, and normalizes values'
39 );
40 $this->setBatchSize( 50 );
41 $this->addOption( 'dry-run', 'Print debug info instead of actually deleting' );
42 $this->addOption( 'hidden', 'Drop hidden preferences ($wgHiddenPrefs)' );
43 $this->addOption( 'unknown',
44 'Drop unknown preferences (not in $wgDefaultUserOptions or prefixed with "userjs-")' );
45 // TODO: actually implement this
46 // $this->addOption( 'bogus', 'Drop preferences that have invalid/unaccepted values' );
47 }
48
61 public function execute() {
62 $dbw = $this->getDB( DB_MASTER );
63 $hidden = $this->hasOption( 'hidden' );
64 $unknown = $this->hasOption( 'unknown' );
65 $bogus = $this->hasOption( 'bogus' );
66
67 if ( !$hidden && !$unknown && !$bogus ) {
68 $this->output( "Did not select one of --hidden, --unknown or --bogus, exiting\n" );
69 return;
70 }
71
72 // Remove hidden prefs. Iterate over them to avoid the IN on a large table
73 if ( $hidden ) {
74 $hiddenPrefs = $this->getConfig()->get( 'HiddenPrefs' );
75 if ( !$hiddenPrefs ) {
76 $this->output( "No hidden preferences, skipping\n" );
77 }
78 foreach ( $hiddenPrefs as $hiddenPref ) {
79 $this->deleteByWhere(
80 $dbw,
81 'Dropping hidden preferences',
82 [ 'up_property' => $hiddenPref ]
83 );
84 }
85 }
86
87 // Remove unknown preferences. Special-case 'userjs-' as we can't control those names.
88 if ( $unknown ) {
89 $defaultUserOptions = $this->getConfig()->get( 'DefaultUserOptions' );
90 $where = [
91 'up_property NOT' . $dbw->buildLike( 'userjs-', $dbw->anyString() ),
92 'up_property NOT IN (' . $dbw->makeList( array_keys( $defaultUserOptions ) ) . ')',
93 ];
94 // Allow extensions to add to the where clause to prevent deletion of their own prefs.
95 $this->getHookRunner()->onDeleteUnknownPreferences( $where, $dbw );
96 $this->deleteByWhere( $dbw, 'Dropping unknown preferences', $where );
97 }
98
99 // Something something phase 3
100 if ( $bogus ) {
101 }
102 }
103
104 private function deleteByWhere( $dbw, $startMessage, $where ) {
105 $this->output( $startMessage . "...\n" );
106 $total = 0;
107 while ( true ) {
108 $res = $dbw->select(
109 'user_properties',
110 '*', // The table lacks a primary key, so select the whole row
111 $where,
112 __METHOD__,
113 [ 'LIMIT' => $this->mBatchSize ]
114 );
115
116 $numRows = $res->numRows();
117 $total += $numRows;
118 if ( $res->numRows() <= 0 ) {
119 $this->output( "DONE! (handled $total entries)\n" );
120 break;
121 }
122
123 // Progress or something
124 $this->output( "..doing $numRows entries\n" );
125
126 // Delete our batch, then wait
127 foreach ( $res as $row ) {
128 if ( $this->hasOption( 'dry-run' ) ) {
129 $this->output(
130 " DRY RUN, would drop: " .
131 "[up_user] => '{$row->up_user}' " .
132 "[up_property] => '{$row->up_property}' " .
133 "[up_value] => '{$row->up_value}'\n"
134 );
135 continue;
136 }
137 $this->beginTransaction( $dbw, __METHOD__ );
138 $dbw->delete(
139 'user_properties',
140 [
141 'up_user' => $row->up_user,
142 'up_property' => $row->up_property,
143 'up_value' => $row->up_value,
144 ],
145 __METHOD__
146 );
147 $this->commitTransaction( $dbw, __METHOD__ );
148 }
149 }
150 }
151}
152
153$maintClass = CleanupPreferences::class; // Tells it to run the class
154require_once RUN_MAINTENANCE_IF_MAIN;
getDB()
const RUN_MAINTENANCE_IF_MAIN
Maintenance script that removes bogus preferences from the database.
deleteByWhere( $dbw, $startMessage, $where)
__construct()
Default constructor.
execute()
We will do this in three passes 1) The easiest is to drop the hidden preferences from the database.
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.
getHookRunner()
Get a HookRunner for running core hooks.
hasOption( $name)
Checks to see if a particular option was set.
addDescription( $text)
Set the description text.
addOption( $name, $description, $required=false, $withArg=false, $shortName=false, $multiOccurrence=false)
Add a parameter to the script.
setBatchSize( $s=0)
Set the batch size.
const DB_MASTER
Definition defines.php:29