MediaWiki  1.29.1
rebuildtextindex.php
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1 <?php
28 require_once __DIR__ . '/Maintenance.php';
29 
32 
39  const RTI_CHUNK_SIZE = 500;
40 
44  private $db;
45 
46  public function __construct() {
47  parent::__construct();
48  $this->addDescription( 'Rebuild search index table from scratch' );
49  }
50 
51  public function getDbType() {
52  return Maintenance::DB_ADMIN;
53  }
54 
55  public function execute() {
56  // Shouldn't be needed for Postgres
57  $this->db = $this->getDB( DB_MASTER );
58  if ( $this->db->getType() == 'postgres' ) {
59  $this->error( "This script is not needed when using Postgres.\n", true );
60  }
61 
62  if ( $this->db->getType() == 'sqlite' ) {
63  if ( !DatabaseSqlite::getFulltextSearchModule() ) {
64  $this->error( "Your version of SQLite module for PHP doesn't "
65  . "support full-text search (FTS3).\n", true );
66  }
67  if ( !$this->db->checkForEnabledSearch() ) {
68  $this->error( "Your database schema is not configured for "
69  . "full-text search support. Run update.php.\n", true );
70  }
71  }
72 
73  if ( $this->db->getType() == 'mysql' ) {
74  $this->dropMysqlTextIndex();
75  $this->clearSearchIndex();
76  $this->populateSearchIndex();
77  $this->createMysqlTextIndex();
78  } else {
79  $this->clearSearchIndex();
80  $this->populateSearchIndex();
81  }
82 
83  $this->output( "Done.\n" );
84  }
85 
89  protected function populateSearchIndex() {
90  $res = $this->db->select( 'page', 'MAX(page_id) AS count' );
91  $s = $this->db->fetchObject( $res );
92  $count = $s->count;
93  $this->output( "Rebuilding index fields for {$count} pages...\n" );
94  $n = 0;
95 
96  $fields = array_merge(
100  );
101 
102  while ( $n < $count ) {
103  if ( $n ) {
104  $this->output( $n . "\n" );
105  }
106  $end = $n + self::RTI_CHUNK_SIZE - 1;
107 
108  $res = $this->db->select( [ 'page', 'revision', 'text' ], $fields,
109  [ "page_id BETWEEN $n AND $end", 'page_latest = rev_id', 'rev_text_id = old_id' ],
110  __METHOD__
111  );
112 
113  foreach ( $res as $s ) {
114  $title = Title::makeTitle( $s->page_namespace, $s->page_title );
115  try {
116  $rev = new Revision( $s );
117  $content = $rev->getContent();
118 
119  $u = new SearchUpdate( $s->page_id, $title, $content );
120  $u->doUpdate();
121  } catch ( MWContentSerializationException $ex ) {
122  $this->output( "Failed to deserialize content of revision {$s->rev_id} of page "
123  . "`" . $title->getPrefixedDBkey() . "`!\n" );
124  }
125  }
126  $n += self::RTI_CHUNK_SIZE;
127  }
128  }
129 
133  private function dropMysqlTextIndex() {
134  $searchindex = $this->db->tableName( 'searchindex' );
135  if ( $this->db->indexExists( 'searchindex', 'si_title', __METHOD__ ) ) {
136  $this->output( "Dropping index...\n" );
137  $sql = "ALTER TABLE $searchindex DROP INDEX si_title, DROP INDEX si_text";
138  $this->db->query( $sql, __METHOD__ );
139  }
140  }
141 
145  private function createMysqlTextIndex() {
146  $searchindex = $this->db->tableName( 'searchindex' );
147  $this->output( "\nRebuild the index...\n" );
148  $sql = "ALTER TABLE $searchindex ADD FULLTEXT si_title (si_title), " .
149  "ADD FULLTEXT si_text (si_text)";
150  $this->db->query( $sql, __METHOD__ );
151  }
152 
156  private function clearSearchIndex() {
157  $this->output( 'Clearing searchindex table...' );
158  $this->db->delete( 'searchindex', '*', __METHOD__ );
159  $this->output( "Done\n" );
160  }
161 }
162 
163 $maintClass = "RebuildTextIndex";
164 require_once RUN_MAINTENANCE_IF_MAIN;
RebuildTextIndex\__construct
__construct()
Default constructor.
Definition: rebuildtextindex.php:46
Wikimedia\Rdbms\DatabaseSqlite
Definition: DatabaseSqlite.php:37
RebuildTextIndex\dropMysqlTextIndex
dropMysqlTextIndex()
(MySQL only) Drops fulltext index before populating the table.
Definition: rebuildtextindex.php:133
Maintenance\addDescription
addDescription( $text)
Set the description text.
Definition: Maintenance.php:287
use
as see the revision history and available at free of to any person obtaining a copy of this software and associated documentation to deal in the Software without including without limitation the rights to use
Definition: MIT-LICENSE.txt:10
RUN_MAINTENANCE_IF_MAIN
require_once RUN_MAINTENANCE_IF_MAIN
Definition: maintenance.txt:50
$s
$s
Definition: mergeMessageFileList.php:188
$res
$res
Definition: database.txt:21
Maintenance
Abstract maintenance class for quickly writing and churning out maintenance scripts with minimal effo...
Definition: maintenance.txt:39
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
Revision\selectTextFields
static selectTextFields()
Return the list of text fields that should be selected to read the revision text.
Definition: Revision.php:510
Revision
Definition: Revision.php:33
RebuildTextIndex
Maintenance script that rebuilds search index table from scratch.
Definition: rebuildtextindex.php:38
RebuildTextIndex\execute
execute()
Do the actual work.
Definition: rebuildtextindex.php:55
$title
namespace and then decline to actually register it file or subcat img or subcat $title
Definition: hooks.txt:934
RebuildTextIndex\createMysqlTextIndex
createMysqlTextIndex()
(MySQL only) Adds back fulltext index after populating the table.
Definition: rebuildtextindex.php:145
$content
this hook is for auditing only RecentChangesLinked and Watchlist RecentChangesLinked and Watchlist Do not use this to implement individual filters if they are compatible with the ChangesListFilter and ChangesListFilterGroup structure use sub classes of those in conjunction with the ChangesListSpecialPageStructuredFilters hook This hook can be used to implement filters that do not implement that or custom behavior that is not an individual filter e g Watchlist and Watchlist you will want to construct new ChangesListBooleanFilter or ChangesListStringOptionsFilter objects When constructing you specify which group they belong to You can reuse existing or create your you must register them with $special registerFilterGroup removed from all revisions and log entries to which it was applied This gives extensions a chance to take it off their books as the deletion has already been partly carried out by this point or something similar the user will be unable to create the tag set and then return false from the hook function Ensure you consume the ChangeTagAfterDelete hook to carry out custom deletion actions as context called by AbstractContent::getParserOutput May be used to override the normal model specific rendering of page content $content
Definition: hooks.txt:1049
MWContentSerializationException
Exception representing a failure to serialize or unserialize a content object.
Definition: MWContentSerializationException.php:7
Title\makeTitle
static makeTitle( $ns, $title, $fragment='', $interwiki='')
Create a new Title from a namespace index and a DB key.
Definition: Title.php:514
DB_MASTER
const DB_MASTER
Definition: defines.php:26
Maintenance\DB_ADMIN
const DB_ADMIN
Definition: Maintenance.php:64
Revision\selectPageFields
static selectPageFields()
Return the list of page fields that should be selected from page table.
Definition: Revision.php:521
RebuildTextIndex\getDbType
getDbType()
Does the script need different DB access? By default, we give Maintenance scripts normal rights to th...
Definition: rebuildtextindex.php:51
RebuildTextIndex\clearSearchIndex
clearSearchIndex()
Deletes everything from search index.
Definition: rebuildtextindex.php:156
RebuildTextIndex\populateSearchIndex
populateSearchIndex()
Populates the search index with content from all pages.
Definition: rebuildtextindex.php:89
RebuildTextIndex\$db
IMaintainableDatabase $db
Definition: rebuildtextindex.php:44
$maintClass
$maintClass
Definition: rebuildtextindex.php:163
$rev
presenting them properly to the user as errors is done by the caller return true use this to change the list i e etc $rev
Definition: hooks.txt:1741
as
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
Definition: distributors.txt:9
Maintenance\getDB
getDB( $db, $groups=[], $wiki=false)
Returns a database to be used by current maintenance script.
Definition: Maintenance.php:1251
Maintenance\error
error( $err, $die=0)
Throw an error to the user.
Definition: Maintenance.php:392
Maintenance\output
output( $out, $channel=null)
Throw some output to the user.
Definition: Maintenance.php:373
Revision\selectFields
static selectFields()
Return the list of revision fields that should be selected to create a new revision.
Definition: Revision.php:448
Wikimedia\Rdbms\IMaintainableDatabase
Advanced database interface for IDatabase handles that include maintenance methods.
Definition: IMaintainableDatabase.php:39
RebuildTextIndex\RTI_CHUNK_SIZE
const RTI_CHUNK_SIZE
Definition: rebuildtextindex.php:39