includes/installer/DatabaseUpdater.php

   1 <?php
   2 /**
   3  * DBMS-specific updater helper.
   4  *
   5  * @file
   6  * @ingroup Deployment
   7  */
   8
   9 require_once( dirname(__FILE__) . '/../../maintenance/Maintenance.php' );
  10
  11 /**
  12  * Class for handling database updates. Roughly based off of updaters.inc, with
  13  * a few improvements :)
  14  *
  15  * @ingroup Deployment
  16  * @since 1.17
  17  */
  18 abstract class DatabaseUpdater {
  19
  20         /**
  21          * Array of updates to perform on the database
  22          *
  23          * @var array
  24          */
  25         protected $updates = array();
  26
  27         /**
  28          * List of extension-provided database updates
  29          * @var array
  30          */
  31         protected $extensionUpdates = array();
  32
  33         /**
  34          * Handle to the database subclass
  35          *
  36          * @var DatabaseBase
  37          */
  38         protected $db;
  39
  40         protected $shared = false;
  41
  42         protected $postDatabaseUpdateMaintenance = array(
  43                 'DeleteDefaultMessages',
  44                 'PopulateRevisionLength',
  45                 'PopulateRevisionSha1',
  46                 'PopulateImageSha1',
  47                 'FixExtLinksProtocolRelative',
  48         );
  49
  50         /**
  51          * Constructor
  52          *
  53          * @param $db DatabaseBase object to perform updates on
  54          * @param $shared bool Whether to perform updates on shared tables
  55          * @param $maintenance Maintenance Maintenance object which created us
  56          */
  57         protected function __construct( DatabaseBase &$db, $shared, Maintenance $maintenance = null ) {
  58                 $this->db = $db;
  59                 $this->db->setFlag( DBO_DDLMODE ); // For Oracle's handling of schema files
  60                 $this->shared = $shared;
  61                 if ( $maintenance ) {
  62                         $this->maintenance = $maintenance;
  63                 } else {
  64                         $this->maintenance = new FakeMaintenance;
  65                 }
  66                 $this->maintenance->setDB( $db );
  67                 $this->initOldGlobals();
  68                 $this->loadExtensions();
  69                 wfRunHooks( 'LoadExtensionSchemaUpdates', array( $this ) );
  70         }
  71
  72         /**
  73          * Initialize all of the old globals. One day this should all become
  74          * something much nicer
  75          */
  76         private function initOldGlobals() {
  77                 global $wgExtNewTables, $wgExtNewFields, $wgExtPGNewFields,
  78                         $wgExtPGAlteredFields, $wgExtNewIndexes, $wgExtModifiedFields;
  79
  80                 # For extensions only, should be populated via hooks
  81                 # $wgDBtype should be checked to specifiy the proper file
  82                 $wgExtNewTables = array(); // table, dir
  83                 $wgExtNewFields = array(); // table, column, dir
  84                 $wgExtPGNewFields = array(); // table, column, column attributes; for PostgreSQL
  85                 $wgExtPGAlteredFields = array(); // table, column, new type, conversion method; for PostgreSQL
  86                 $wgExtNewIndexes = array(); // table, index, dir
  87                 $wgExtModifiedFields = array(); // table, index, dir
  88         }
  89
  90         /**
  91          * Loads LocalSettings.php, if needed, and initialises everything needed for LoadExtensionSchemaUpdates hook
  92          */
  93         private function loadExtensions() {
  94                 if ( !defined( 'MEDIAWIKI_INSTALL' ) ) {
  95                         return; // already loaded
  96                 }
  97                 $vars = Installer::getExistingLocalSettings();
  98                 if ( !$vars ) {
  99                         return; // no LocalSettings found
 100                 }
 101                 if ( !isset( $vars['wgHooks'] ) || !isset( $vars['wgHooks']['LoadExtensionSchemaUpdates'] ) ) {
 102                         return;
 103                 }
 104                 global $wgHooks, $wgAutoloadClasses;
 105                 $wgHooks['LoadExtensionSchemaUpdates'] = $vars['wgHooks']['LoadExtensionSchemaUpdates'];
 106                 $wgAutoloadClasses = $wgAutoloadClasses + $vars['wgAutoloadClasses'];
 107         }
 108
 109         /**
 110          * @throws MWException
 111          * @param DatabaseBase $db
 112          * @param bool $shared
 113          * @param null $maintenance
 114          * @return DatabaseUpdater
 115          */
 116         public static function newForDB( &$db, $shared = false, $maintenance = null ) {
 117                 $type = $db->getType();
 118                 if( in_array( $type, Installer::getDBTypes() ) ) {
 119                         $class = ucfirst( $type ) . 'Updater';
 120                         return new $class( $db, $shared, $maintenance );
 121                 } else {
 122                         throw new MWException( __METHOD__ . ' called for unsupported $wgDBtype' );
 123                 }
 124         }
 125
 126         /**
 127          * Get a database connection to run updates
 128          *
 129          * @return DatabaseBase
 130          */
 131         public function getDB() {
 132                 return $this->db;
 133         }
 134
 135         /**
 136          * Output some text. If we're running from web, escape the text first.
 137          *
 138          * @param $str String: Text to output
 139          */
 140         public function output( $str ) {
 141                 if ( $this->maintenance->isQuiet() ) {
 142                         return;
 143                 }
 144                 global $wgCommandLineMode;
 145                 if( !$wgCommandLineMode ) {
 146                         $str = htmlspecialchars( $str );
 147                 }
 148                 echo $str;
 149                 flush();
 150         }
 151
 152         /**
 153          * Add a new update coming from an extension. This should be called by
 154          * extensions while executing the LoadExtensionSchemaUpdates hook.
 155          *
 156          * @param $update Array: the update to run. Format is the following:
 157          *                first item is the callback function, it also can be a
 158          *                simple string with the name of a function in this class,
 159          *                following elements are parameters to the function.
 160          *                Note that callback functions will receive this object as
 161          *                first parameter.
 162          */
 163         public function addExtensionUpdate( Array $update ) {
 164                 $this->extensionUpdates[] = $update;
 165         }
 166
 167         /**
 168          * Convenience wrapper for addExtensionUpdate() when adding a new table (which
 169          * is the most common usage of updaters in an extension)
 170          * @param $tableName String Name of table to create
 171          * @param $sqlPath String Full path to the schema file
 172          */
 173         public function addExtensionTable( $tableName, $sqlPath ) {
 174                 $this->extensionUpdates[] = array( 'addTable', $tableName, $sqlPath, true );
 175         }
 176
 177         /**
 178          * @param $tableName string
 179          * @param $indexName string
 180          * @param $sqlPath string
 181          */
 182         public function addExtensionIndex( $tableName, $indexName, $sqlPath ) {
 183                 $this->extensionUpdates[] = array( 'addIndex', $tableName, $indexName, $sqlPath, true );
 184         }
 185
 186         /**
 187          * @param $tableName string
 188          * @param $columnName string
 189          * @param $sqlPath string
 190          */
 191         public function addExtensionField( $tableName, $columnName, $sqlPath ) {
 192                 $this->extensionUpdates[] = array( 'addField', $tableName, $columnName, $sqlPath, true );
 193         }
 194
 195         /**
 196          * Add a maintenance script to be run after the database updates are complete.
 197          *
 198          * @since 1.19
 199          *
 200          * @param $class string Name of a Maintenance subclass
 201          */
 202         public function addPostDatabaseUpdateMaintenance( $class ) {
 203                 $this->postDatabaseUpdateMaintenance[] = $class;
 204         }
 205
 206         /**
 207          * Get the list of extension-defined updates
 208          *
 209          * @return Array
 210          */
 211         protected function getExtensionUpdates() {
 212                 return $this->extensionUpdates;
 213         }
 214
 215         /**
 216          * @since 1.17
 217          *
 218          * @return array
 219          */
 220         public function getPostDatabaseUpdateMaintenance() {
 221                 return $this->postDatabaseUpdateMaintenance;
 222         }
 223
 224         /**
 225          * Do all the updates
 226          *
 227          * @param $what Array: what updates to perform
 228          */
 229         public function doUpdates( $what = array( 'core', 'extensions', 'purge', 'stats' ) ) {
 230                 global $wgLocalisationCacheConf, $wgVersion;
 231
 232                 $what = array_flip( $what );
 233                 if ( isset( $what['core'] ) ) {
 234                         $this->runUpdates( $this->getCoreUpdateList(), false );
 235                 }
 236                 if ( isset( $what['extensions'] ) ) {
 237                         $this->runUpdates( $this->getOldGlobalUpdates(), false );
 238                         $this->runUpdates( $this->getExtensionUpdates(), true );
 239                 }
 240
 241                 $this->setAppliedUpdates( $wgVersion, $this->updates );
 242
 243                 if ( isset( $what['purge'] ) ) {
 244                         $this->purgeCache();
 245
 246                         if ( $wgLocalisationCacheConf['manualRecache'] ) {
 247                                 $this->rebuildLocalisationCache();
 248                         }
 249                 }
 250                 if ( isset( $what['stats'] ) ) {
 251                         $this->checkStats();
 252                 }
 253         }
 254
 255         /**
 256          * Helper function for doUpdates()
 257          *
 258          * @param $updates Array of updates to run
 259          * @param $passSelf Boolean: whether to pass this object we calling external
 260          *                  functions
 261          */
 262         private function runUpdates( array $updates, $passSelf ) {
 263                 foreach ( $updates as $params ) {
 264                         $func = array_shift( $params );
 265                         if( !is_array( $func ) && method_exists( $this, $func ) ) {
 266                                 $func = array( $this, $func );
 267                         } elseif ( $passSelf ) {
 268                                 array_unshift( $params, $this );
 269                         }
 270                         call_user_func_array( $func, $params );
 271                         flush();
 272                 }
 273                 $this->updates = array_merge( $this->updates, $updates );
 274         }
 275
 276         /**
 277          * @param $version
 278          * @param $updates array
 279          */
 280         protected function setAppliedUpdates( $version, $updates = array() ) {
 281                 $this->db->clearFlag( DBO_DDLMODE );
 282                 if( !$this->canUseNewUpdatelog() ) {
 283                         return;
 284                 }
 285                 $key = "updatelist-$version-" . time();
 286                 $this->db->insert( 'updatelog',
 287                         array( 'ul_key' => $key, 'ul_value' => serialize( $updates ) ),
 288                          __METHOD__ );
 289                 $this->db->setFlag( DBO_DDLMODE );
 290         }
 291
 292         /**
 293          * Helper function: check if the given key is present in the updatelog table.
 294          * Obviously, only use this for updates that occur after the updatelog table was
 295          * created!
 296          * @param $key String Name of the key to check for
 297          *
 298          * @return bool
 299          */
 300         public function updateRowExists( $key ) {
 301                 $row = $this->db->selectRow(
 302                         'updatelog',
 303                         '1',
 304                         array( 'ul_key' => $key ),
 305                         __METHOD__
 306                 );
 307                 return (bool)$row;
 308         }
 309
 310         /**
 311          * Helper function: Add a key to the updatelog table
 312          * Obviously, only use this for updates that occur after the updatelog table was
 313          * created!
 314          * @param $key String Name of key to insert
 315          * @param $val String [optional] value to insert along with the key
 316          */
 317         public function insertUpdateRow( $key, $val = null ) {
 318                 $this->db->clearFlag( DBO_DDLMODE );
 319                 $values = array( 'ul_key' => $key );
 320                 if( $val && $this->canUseNewUpdatelog() ) {
 321                         $values['ul_value'] = $val;
 322                 }
 323                 $this->db->insert( 'updatelog', $values, __METHOD__, 'IGNORE' );
 324                 $this->db->setFlag( DBO_DDLMODE );
 325         }
 326
 327         /**
 328          * Updatelog was changed in 1.17 to have a ul_value column so we can record
 329          * more information about what kind of updates we've done (that's what this
 330          * class does). Pre-1.17 wikis won't have this column, and really old wikis
 331          * might not even have updatelog at all
 332          *
 333          * @return boolean
 334          */
 335         protected function canUseNewUpdatelog() {
 336                 return $this->db->tableExists( 'updatelog', __METHOD__ ) &&
 337                         $this->db->fieldExists( 'updatelog', 'ul_value', __METHOD__ );
 338         }
 339
 340         /**
 341          * Before 1.17, we used to handle updates via stuff like
 342          * $wgExtNewTables/Fields/Indexes. This is nasty :) We refactored a lot
 343          * of this in 1.17 but we want to remain back-compatible for a while. So
 344          * load up these old global-based things into our update list.
 345          *
 346          * @return array
 347          */
 348         protected function getOldGlobalUpdates() {
 349                 global $wgExtNewFields, $wgExtNewTables, $wgExtModifiedFields,
 350                         $wgExtNewIndexes, $wgSharedDB, $wgSharedTables;
 351
 352                 $doUser = $this->shared ?
 353                         $wgSharedDB && in_array( 'user', $wgSharedTables ) :
 354                         !$wgSharedDB || !in_array( 'user', $wgSharedTables );
 355
 356                 $updates = array();
 357
 358                 foreach ( $wgExtNewTables as $tableRecord ) {
 359                         $updates[] = array(
 360                                 'addTable', $tableRecord[0], $tableRecord[1], true
 361                         );
 362                 }
 363
 364                 foreach ( $wgExtNewFields as $fieldRecord ) {
 365                         if ( $fieldRecord[0] != 'user' || $doUser ) {
 366                                 $updates[] = array(
 367                                         'addField', $fieldRecord[0], $fieldRecord[1],
 368                                                 $fieldRecord[2], true
 369                                 );
 370                         }
 371                 }
 372
 373                 foreach ( $wgExtNewIndexes as $fieldRecord ) {
 374                         $updates[] = array(
 375                                 'addIndex', $fieldRecord[0], $fieldRecord[1],
 376                                         $fieldRecord[2], true
 377                         );
 378                 }
 379
 380                 foreach ( $wgExtModifiedFields as $fieldRecord ) {
 381                         $updates[] = array(
 382                                 'modifyField', $fieldRecord[0], $fieldRecord[1],
 383                                         $fieldRecord[2], true
 384                         );
 385                 }
 386
 387                 return $updates;
 388         }
 389
 390         /**
 391          * Get an array of updates to perform on the database. Should return a
 392          * multi-dimensional array. The main key is the MediaWiki version (1.12,
 393          * 1.13...) with the values being arrays of updates, identical to how
 394          * updaters.inc did it (for now)
 395          *
 396          * @return Array
 397          */
 398         protected abstract function getCoreUpdateList();
 399
 400         /**
 401          * Applies a SQL patch
 402          * @param $path String Path to the patch file
 403          * @param $isFullPath Boolean Whether to treat $path as a relative or not
 404          */
 405         protected function applyPatch( $path, $isFullPath = false ) {
 406                 if ( $isFullPath ) {
 407                         $this->db->sourceFile( $path );
 408                 } else {
 409                         $this->db->sourceFile( $this->db->patchPath( $path ) );
 410                 }
 411         }
 412
 413         /**
 414          * Add a new table to the database
 415          * @param $name String Name of the new table
 416          * @param $patch String Path to the patch file
 417          * @param $fullpath Boolean Whether to treat $patch path as a relative or not
 418          */
 419         protected function addTable( $name, $patch, $fullpath = false ) {
 420                 if ( $this->db->tableExists( $name, __METHOD__ ) ) {
 421                         $this->output( "...$name table already exists.\n" );
 422                 } else {
 423                         $this->output( "Creating $name table..." );
 424                         $this->applyPatch( $patch, $fullpath );
 425                         $this->output( "done.\n" );
 426                 }
 427         }
 428
 429         /**
 430          * Add a new field to an existing table
 431          * @param $table String Name of the table to modify
 432          * @param $field String Name of the new field
 433          * @param $patch String Path to the patch file
 434          * @param $fullpath Boolean Whether to treat $patch path as a relative or not
 435          */
 436         protected function addField( $table, $field, $patch, $fullpath = false ) {
 437                 if ( !$this->db->tableExists( $table, __METHOD__ ) ) {
 438                         $this->output( "...$table table does not exist, skipping new field patch.\n" );
 439                 } elseif ( $this->db->fieldExists( $table, $field, __METHOD__ ) ) {
 440                         $this->output( "...have $field field in $table table.\n" );
 441                 } else {
 442                         $this->output( "Adding $field field to table $table..." );
 443                         $this->applyPatch( $patch, $fullpath );
 444                         $this->output( "done.\n" );
 445                 }
 446         }
 447
 448         /**
 449          * Add a new index to an existing table
 450          * @param $table String Name of the table to modify
 451          * @param $index String Name of the new index
 452          * @param $patch String Path to the patch file
 453          * @param $fullpath Boolean Whether to treat $patch path as a relative or not
 454          */
 455         protected function addIndex( $table, $index, $patch, $fullpath = false ) {
 456                 if ( $this->db->indexExists( $table, $index, __METHOD__ ) ) {
 457                         $this->output( "...$index key already set on $table table.\n" );
 458                 } else {
 459                         $this->output( "Adding $index key to table $table... " );
 460                         $this->applyPatch( $patch, $fullpath );
 461                         $this->output( "done.\n" );
 462                 }
 463         }
 464
 465         /**
 466          * Drop a field from an existing table
 467          *
 468          * @param $table String Name of the table to modify
 469          * @param $field String Name of the old field
 470          * @param $patch String Path to the patch file
 471          * @param $fullpath Boolean Whether to treat $patch path as a relative or not
 472          */
 473         protected function dropField( $table, $field, $patch, $fullpath = false ) {
 474                 if ( $this->db->fieldExists( $table, $field, __METHOD__ ) ) {
 475                         $this->output( "Table $table contains $field field. Dropping... " );
 476                         $this->applyPatch( $patch, $fullpath );
 477                         $this->output( "done.\n" );
 478                 } else {
 479                         $this->output( "...$table table does not contain $field field.\n" );
 480                 }
 481         }
 482
 483         /**
 484          * Drop an index from an existing table
 485          *
 486          * @param $table String: Name of the table to modify
 487          * @param $index String: Name of the old index
 488          * @param $patch String: Path to the patch file
 489          * @param $fullpath Boolean: Whether to treat $patch path as a relative or not
 490          */
 491         protected function dropIndex( $table, $index, $patch, $fullpath = false ) {
 492                 if ( $this->db->indexExists( $table, $index, __METHOD__ ) ) {
 493                         $this->output( "Dropping $index key from table $table... " );
 494                         $this->applyPatch( $patch, $fullpath );
 495                         $this->output( "done.\n" );
 496                 } else {
 497                         $this->output( "...$index key doesn't exist.\n" );
 498                 }
 499         }
 500
 501         /**
 502          * @param $table string
 503          * @param $patch string
 504          * @param $fullpath bool
 505          */
 506         protected function dropTable( $table, $patch, $fullpath = false ) {
 507                 if ( $this->db->tableExists( $table, __METHOD__ ) ) {
 508                         $this->output( "Dropping table $table... " );
 509                         $this->applyPatch( $patch, $fullpath );
 510                         $this->output( "done.\n" );
 511                 } else {
 512                         $this->output( "...$table doesn't exist.\n" );
 513                 }
 514         }
 515
 516         /**
 517          * Modify an existing field
 518          *
 519          * @param $table String: name of the table to which the field belongs
 520          * @param $field String: name of the field to modify
 521          * @param $patch String: path to the patch file
 522          * @param $fullpath Boolean: whether to treat $patch path as a relative or not
 523          */
 524         public function modifyField( $table, $field, $patch, $fullpath = false ) {
 525                 $updateKey = "$table-$field-$patch";
 526                 if ( !$this->db->tableExists( $table, __METHOD__ ) ) {
 527                         $this->output( "...$table table does not exist, skipping modify field patch.\n" );
 528                 } elseif ( !$this->db->fieldExists( $table, $field, __METHOD__ ) ) {
 529                         $this->output( "...$field field does not exist in $table table, skipping modify field patch.\n" );
 530                 } elseif( $this->updateRowExists( $updateKey ) ) {
 531                         $this->output( "...$field in table $table already modified by patch $patch.\n" );
 532                 } else {
 533                         $this->output( "Modifying $field field of table $table..." );
 534                         $this->applyPatch( $patch, $fullpath );
 535                         $this->insertUpdateRow( $updateKey );
 536                         $this->output( "done.\n" );
 537                 }
 538         }
 539
 540         /**
 541          * Purge the objectcache table
 542          */
 543         protected function purgeCache() {
 544                 # We can't guarantee that the user will be able to use TRUNCATE,
 545                 # but we know that DELETE is available to us
 546                 $this->output( "Purging caches..." );
 547                 $this->db->delete( 'objectcache', '*', __METHOD__ );
 548                 $this->output( "done.\n" );
 549         }
 550
 551         /**
 552          * Check the site_stats table is not properly populated.
 553          */
 554         protected function checkStats() {
 555                 $this->output( "Checking site_stats row..." );
 556                 $row = $this->db->selectRow( 'site_stats', '*', array( 'ss_row_id' => 1 ), __METHOD__ );
 557                 if ( $row === false ) {
 558                         $this->output( "data is missing! rebuilding...\n" );
 559                 } elseif ( isset( $row->site_stats ) && $row->ss_total_pages == -1 ) {
 560                         $this->output( "missing ss_total_pages, rebuilding...\n" );
 561                 } else {
 562                         $this->output( "done.\n" );
 563                         return;
 564                 }
 565                 SiteStatsInit::doAllAndCommit( $this->db );
 566         }
 567
 568         # Common updater functions
 569
 570         /**
 571          * Sets the number of active users in the site_stats table
 572          */
 573         protected function doActiveUsersInit() {
 574                 $activeUsers = $this->db->selectField( 'site_stats', 'ss_active_users', false, __METHOD__ );
 575                 if ( $activeUsers == -1 ) {
 576                         $activeUsers = $this->db->selectField( 'recentchanges',
 577                                 'COUNT( DISTINCT rc_user_text )',
 578                                 array( 'rc_user != 0', 'rc_bot' => 0, "rc_log_type != 'newusers'" ), __METHOD__
 579                         );
 580                         $this->db->update( 'site_stats',
 581                                 array( 'ss_active_users' => intval( $activeUsers ) ),
 582                                 array( 'ss_row_id' => 1 ), __METHOD__, array( 'LIMIT' => 1 )
 583                         );
 584                 }
 585                 $this->output( "...ss_active_users user count set...\n" );
 586         }
 587
 588         /**
 589          * Populates the log_user_text field in the logging table
 590          */
 591         protected function doLogUsertextPopulation() {
 592                 if ( !$this->updateRowExists( 'populate log_usertext' ) ) {
 593                         $this->output(
 594                         "Populating log_user_text field, printing progress markers. For large\n" .
 595                         "databases, you may want to hit Ctrl-C and do this manually with\n" .
 596                         "maintenance/populateLogUsertext.php.\n" );
 597
 598                         $task = $this->maintenance->runChild( 'PopulateLogUsertext' );
 599                         $task->execute();
 600                         $this->output( "done.\n" );
 601                 }
 602         }
 603
 604         /**
 605          * Migrate log params to new table and index for searching
 606          */
 607         protected function doLogSearchPopulation() {
 608                 if ( !$this->updateRowExists( 'populate log_search' ) ) {
 609                         $this->output(
 610                                 "Populating log_search table, printing progress markers. For large\n" .
 611                                 "databases, you may want to hit Ctrl-C and do this manually with\n" .
 612                                 "maintenance/populateLogSearch.php.\n" );
 613
 614                         $task = $this->maintenance->runChild( 'PopulateLogSearch' );
 615                         $task->execute();
 616                         $this->output( "done.\n" );
 617                 }
 618         }
 619
 620         /**
 621          * Updates the timestamps in the transcache table
 622          */
 623         protected function doUpdateTranscacheField() {
 624                 if ( $this->updateRowExists( 'convert transcache field' ) ) {
 625                         $this->output( "...transcache tc_time already converted.\n" );
 626                         return;
 627                 }
 628
 629                 $this->output( "Converting tc_time from UNIX epoch to MediaWiki timestamp... " );
 630                 $this->applyPatch( 'patch-tc-timestamp.sql' );
 631                 $this->output( "done.\n" );
 632         }
 633
 634         /**
 635          * Update CategoryLinks collation
 636          */
 637         protected function doCollationUpdate() {
 638                 global $wgCategoryCollation;
 639                 if ( $this->db->selectField(
 640                         'categorylinks',
 641                         'COUNT(*)',
 642                         'cl_collation != ' . $this->db->addQuotes( $wgCategoryCollation ),
 643                         __METHOD__
 644                 ) == 0 ) {
 645                         $this->output( "...collations up-to-date.\n" );
 646                         return;
 647                 }
 648
 649                 $this->output( "Updating category collations..." );
 650                 $task = $this->maintenance->runChild( 'UpdateCollation' );
 651                 $task->execute();
 652                 $this->output( "...done.\n" );
 653         }
 654
 655         /**
 656          * Migrates user options from the user table blob to user_properties
 657          */
 658         protected function doMigrateUserOptions() {
 659                 $cl = $this->maintenance->runChild( 'ConvertUserOptions', 'convertUserOptions.php' );
 660                 $this->output( "Migrating remaining user_options... " );
 661                 $cl->execute();
 662                 $this->output( "done.\n" );
 663         }
 664
 665         /**
 666          * Rebuilds the localisation cache
 667          */
 668         protected function rebuildLocalisationCache() {
 669                 /**
 670                  * @var $cl RebuildLocalisationCache
 671                  */
 672                 $cl = $this->maintenance->runChild( 'RebuildLocalisationCache', 'rebuildLocalisationCache.php' );
 673                 $this->output( "Rebuilding localisation cache...\n" );
 674                 $cl->setForce();
 675                 $cl->execute();
 676                 $this->output( "done.\n" );
 677         }
 678 }