MediaWiki  REL1_31
populatePPSortKey.php
Go to the documentation of this file.
1 <?php
24 require_once __DIR__ . '/Maintenance.php';
25 
31  public function __construct() {
32  parent::__construct();
33  $this->addDescription( 'Populate the pp_sortkey field' );
34  $this->setBatchSize( 100 );
35  }
36 
37  protected function doDBUpdates() {
38  $dbw = $this->getDB( DB_MASTER );
39 
40  $lastProp = null;
41  $lastPageValue = 0;
42  $editedRowCount = 0;
43 
44  $this->output( "Populating page_props.pp_sortkey...\n" );
45  while ( true ) {
46  $conditions = [ 'pp_sortkey IS NULL' ];
47  if ( $lastPageValue !== 0 ) {
48  $conditions[] = 'pp_page > ' . $dbw->addQuotes( $lastPageValue ) . ' OR ' .
49  '( pp_page = ' . $dbw->addQuotes( $lastPageValue ) .
50  ' AND pp_propname > ' . $dbw->addQuotes( $lastProp ) . ' )';
51  }
52 
53  $res = $dbw->select(
54  'page_props',
55  [ 'pp_propname', 'pp_page', 'pp_sortkey', 'pp_value' ],
56  $conditions,
57  __METHOD__,
58  [
59  'ORDER BY' => 'pp_page, pp_propname',
60  'LIMIT' => $this->getBatchSize()
61  ]
62  );
63 
64  if ( $res->numRows() === 0 ) {
65  break;
66  }
67 
68  $this->beginTransaction( $dbw, __METHOD__ );
69 
70  foreach ( $res as $row ) {
71  if ( !is_numeric( $row->pp_value ) ) {
72  continue;
73  }
74  $dbw->update(
75  'page_props',
76  [ 'pp_sortkey' => $row->pp_value ],
77  [
78  'pp_page' => $row->pp_page,
79  'pp_propname' => $row->pp_propname
80  ],
81  __METHOD__
82  );
83  $editedRowCount++;
84  }
85 
86  $this->output( "Updated " . $editedRowCount . " rows\n" );
87  $this->commitTransaction( $dbw, __METHOD__ );
88 
89  // We need to get the last element's page ID
90  $lastPageValue = $row->pp_page;
91  // And the propname...
92  $lastProp = $row->pp_propname;
93  }
94 
95  $this->output( "Populating page_props.pp_sortkey complete.\n" );
96  }
97 
98  protected function getUpdateKey() {
99  return 'populate pp_sortkey';
100  }
101 }
102 
104 require_once RUN_MAINTENANCE_IF_MAIN;
Maintenance\addDescription
addDescription( $text)
Set the description text.
Definition: Maintenance.php:291
PopulatePPSortKey\doDBUpdates
doDBUpdates()
Do the actual work.
Definition: populatePPSortKey.php:37
RUN_MAINTENANCE_IF_MAIN
require_once RUN_MAINTENANCE_IF_MAIN
Definition: maintenance.txt:50
$res
$res
Definition: database.txt:21
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:37
Maintenance\beginTransaction
beginTransaction(IDatabase $dbw, $fname)
Begin a transcation on a DB.
Definition: Maintenance.php:1336
PopulatePPSortKey\getUpdateKey
getUpdateKey()
Get the update key name to go in the update log table.
Definition: populatePPSortKey.php:98
LoggedUpdateMaintenance
Class for scripts that perform database maintenance and want to log the update in updatelog so we can...
Definition: Maintenance.php:1640
DB_MASTER
const DB_MASTER
Definition: defines.php:29
$maintClass
$maintClass
Definition: populatePPSortKey.php:103
Maintenance\commitTransaction
commitTransaction(IDatabase $dbw, $fname)
Commit the transcation on a DB handle and wait for replica DBs to catch up.
Definition: Maintenance.php:1351
Maintenance\getBatchSize
getBatchSize()
Returns batch size.
Definition: Maintenance.php:321
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:22
Maintenance\getDB
getDB( $db, $groups=[], $wiki=false)
Returns a database to be used by current maintenance script.
Definition: Maintenance.php:1309
Maintenance\output
output( $out, $channel=null)
Throw some output to the user.
Definition: Maintenance.php:388
PopulatePPSortKey\__construct
__construct()
Default constructor.
Definition: populatePPSortKey.php:31
class
you have access to all of the normal MediaWiki so you can get a DB use the etc For full docs on the Maintenance class
Definition: maintenance.txt:56
PopulatePPSortKey
Usage: populatePPSortKey.php.
Definition: populatePPSortKey.php:30
Maintenance\setBatchSize
setBatchSize( $s=0)
Set the batch size.
Definition: Maintenance.php:329