MediaWiki REL1_30
cleanupAncientTables.php
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1<?php
24require_once __DIR__ . '/Maintenance.php';
25
33
34 public function __construct() {
35 parent::__construct();
36 $this->addDescription( 'Cleanup ancient tables and indexes' );
37 $this->addOption( 'force', 'Actually run this script' );
38 }
39
40 public function execute() {
41 if ( !$this->hasOption( 'force' ) ) {
42 $this->error( "This maintenance script will remove old columns and indexes.\n"
43 . "It is recommended to backup your database first, and ensure all your data has\n"
44 . "been migrated to newer tables. If you want to continue, run this script again\n"
45 . "with --force.\n"
46 );
47 }
48
49 $db = $this->getDB( DB_MASTER );
50 $ancientTables = [
51 'blobs', // 1.4
52 'brokenlinks', // 1.4
53 'cur', // 1.4
54 'ip_blocks_old', // Temporary in 1.6
55 'links', // 1.4
56 'linkscc', // 1.4
57 // 'math', // 1.18, but don't want to drop if math extension is enabled...
58 'old', // 1.4
59 'oldwatchlist', // pre 1.1?
60 'trackback', // 1.19
61 'user_rights', // 1.5
62 'validate', // 1.6
63 ];
64
65 foreach ( $ancientTables as $table ) {
66 if ( $db->tableExists( $table, __METHOD__ ) ) {
67 $this->output( "Dropping table $table..." );
68 $db->dropTable( $table, __METHOD__ );
69 $this->output( "done.\n" );
70 }
71 }
72
73 $this->output( "Cleaning up text table\n" );
74
75 $oldIndexes = [
76 'old_namespace',
77 'old_timestamp',
78 'name_title_timestamp',
79 'user_timestamp',
80 'usertext_timestamp',
81 ];
82 foreach ( $oldIndexes as $index ) {
83 if ( $db->indexExists( 'text', $index, __METHOD__ ) ) {
84 $this->output( "Dropping index $index from the text table..." );
85 $db->query( "DROP INDEX " . $db->addIdentifierQuotes( $index )
86 . " ON " . $db->tableName( 'text' ) );
87 $this->output( "done.\n" );
88 }
89 }
90
91 $oldFields = [
92 'old_namespace',
93 'old_title',
94 'old_comment',
95 'old_user',
96 'old_user_text',
97 'old_timestamp',
98 'old_minor_edit',
99 'inverse_timestamp',
100 ];
101 foreach ( $oldFields as $field ) {
102 if ( $db->fieldExists( 'text', $field, __METHOD__ ) ) {
103 $this->output( "Dropping the $field field from the text table..." );
104 $db->query( "ALTER TABLE " . $db->tableName( 'text' )
105 . " DROP COLUMN " . $db->addIdentifierQuotes( $field ) );
106 $this->output( "done.\n" );
107 }
108 }
109 $this->output( "Done!\n" );
110 }
111}
112
113$maintClass = "CleanupAncientTables";
114require_once RUN_MAINTENANCE_IF_MAIN;
Maintenance script to cleans up old database tables, dropping old indexes and fields.
__construct()
Default constructor.
execute()
Do the actual work.
Abstract maintenance class for quickly writing and churning out maintenance scripts with minimal effo...
getDB( $db, $groups=[], $wiki=false)
Returns a database to be used by current maintenance script.
hasOption( $name)
Checks to see if a particular param exists.
addDescription( $text)
Set the description text.
addOption( $name, $description, $required=false, $withArg=false, $shortName=false, $multiOccurrence=false)
Add a parameter to the script.
design txt This is a brief overview of the new design More thorough and up to date information is available on the documentation wiki at etc Handles the details of getting and saving to the user table of the and dealing with sessions and cookies OutputPage Encapsulates the entire HTML page that will be sent in response to any server request It is used by calling its functions to add in any and then calling output() to send it all. It could be easily changed to send incrementally if that becomes useful
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 error
Definition hooks.txt:2581
require_once RUN_MAINTENANCE_IF_MAIN
const DB_MASTER
Definition defines.php:26