includes/installer/MysqlUpdater.php

   1 <?php
   2 /**
   3  * MySQL-specific updater.
   4  *
   5  * @file
   6  * @ingroup Deployment
   7  */
   8
   9 /**
  10  * Mysql update list and mysql-specific update functions.
  11  *
  12  * @ingroup Deployment
  13  * @since 1.17
  14  */
  15 class MysqlUpdater extends DatabaseUpdater {
  16
  17         protected function getCoreUpdateList() {
  18                 return array(
  19                         // 1.2
  20                         array( 'addField', 'ipblocks',      'ipb_id',           'patch-ipblocks.sql' ),
  21                         array( 'addField', 'ipblocks',      'ipb_expiry',       'patch-ipb_expiry.sql' ),
  22                         array( 'doInterwikiUpdate' ),
  23                         array( 'doIndexUpdate' ),
  24                         array( 'addTable', 'hitcounter',                        'patch-hitcounter.sql' ),
  25                         array( 'addField', 'recentchanges', 'rc_type',          'patch-rc_type.sql' ),
  26
  27                         // 1.3
  28                         array( 'addField', 'user',          'user_real_name',   'patch-user-realname.sql' ),
  29                         array( 'addTable', 'querycache',                        'patch-querycache.sql' ),
  30                         array( 'addTable', 'objectcache',                       'patch-objectcache.sql' ),
  31                         array( 'addTable', 'categorylinks',                     'patch-categorylinks.sql' ),
  32                         array( 'doOldLinksUpdate' ),
  33                         array( 'doFixAncientImagelinks' ),
  34                         array( 'addField', 'recentchanges', 'rc_ip',            'patch-rc_ip.sql' ),
  35
  36                         // 1.4
  37                         array( 'addIndex', 'image',         'PRIMARY',          'patch-image_name_primary.sql' ),
  38                         array( 'addField', 'recentchanges', 'rc_id',            'patch-rc_id.sql' ),
  39                         array( 'addField', 'recentchanges', 'rc_patrolled',     'patch-rc-patrol.sql' ),
  40                         array( 'addTable', 'logging',                           'patch-logging.sql' ),
  41                         array( 'addField', 'user',          'user_token',       'patch-user_token.sql' ),
  42                         array( 'addField', 'watchlist',     'wl_notificationtimestamp', 'patch-email-notification.sql' ),
  43                         array( 'doWatchlistUpdate' ),
  44                         array( 'dropField', 'user',         'user_emailauthenticationtimestamp', 'patch-email-authentication.sql' ),
  45
  46                         // 1.5
  47                         array( 'doSchemaRestructuring' ),
  48                         array( 'addField', 'logging',       'log_params',       'patch-log_params.sql' ),
  49                         array( 'checkBin', 'logging',       'log_title',        'patch-logging-title.sql', ),
  50                         array( 'addField', 'archive',       'ar_rev_id',        'patch-archive-rev_id.sql' ),
  51                         array( 'addField', 'page',          'page_len',         'patch-page_len.sql' ),
  52                         array( 'dropField', 'revision',     'inverse_timestamp', 'patch-inverse_timestamp.sql' ),
  53                         array( 'addField', 'revision',      'rev_text_id',      'patch-rev_text_id.sql' ),
  54                         array( 'addField', 'revision',      'rev_deleted',      'patch-rev_deleted.sql' ),
  55                         array( 'addField', 'image',         'img_width',        'patch-img_width.sql' ),
  56                         array( 'addField', 'image',         'img_metadata',     'patch-img_metadata.sql' ),
  57                         array( 'addField', 'user',          'user_email_token', 'patch-user_email_token.sql' ),
  58                         array( 'addField', 'archive',       'ar_text_id',       'patch-archive-text_id.sql' ),
  59                         array( 'doNamespaceSize' ),
  60                         array( 'addField', 'image',         'img_media_type',   'patch-img_media_type.sql' ),
  61                         array( 'doPagelinksUpdate' ),
  62                         array( 'dropField', 'image',        'img_type',         'patch-drop_img_type.sql' ),
  63                         array( 'doUserUniqueUpdate' ),
  64                         array( 'doUserGroupsUpdate' ),
  65                         array( 'addField', 'site_stats',    'ss_total_pages',   'patch-ss_total_articles.sql' ),
  66                         array( 'addTable', 'user_newtalk',                      'patch-usernewtalk2.sql' ),
  67                         array( 'addTable', 'transcache',                        'patch-transcache.sql' ),
  68                         array( 'addField', 'interwiki',     'iw_trans',         'patch-interwiki-trans.sql' ),
  69                         array( 'addTable', 'trackbacks',                        'patch-trackbacks.sql' ),
  70
  71                         // 1.6
  72                         array( 'doWatchlistNull' ),
  73                         array( 'addIndex', 'logging',         'times',            'patch-logging-times-index.sql' ),
  74                         array( 'addField', 'ipblocks',        'ipb_range_start',  'patch-ipb_range_start.sql' ),
  75                         array( 'doPageRandomUpdate' ),
  76                         array( 'addField', 'user',            'user_registration', 'patch-user_registration.sql' ),
  77                         array( 'doTemplatelinksUpdate' ),
  78                         array( 'addTable', 'externallinks',                       'patch-externallinks.sql' ),
  79                         array( 'addTable', 'job',                                 'patch-job.sql' ),
  80                         array( 'addField', 'site_stats',      'ss_images',        'patch-ss_images.sql' ),
  81                         array( 'addTable', 'langlinks',                           'patch-langlinks.sql' ),
  82                         array( 'addTable', 'querycache_info',                     'patch-querycacheinfo.sql' ),
  83                         array( 'addTable', 'filearchive',                         'patch-filearchive.sql' ),
  84                         array( 'addField', 'ipblocks',        'ipb_anon_only',    'patch-ipb_anon_only.sql' ),
  85                         array( 'addIndex', 'recentchanges',   'rc_ns_usertext',   'patch-recentchanges-utindex.sql' ),
  86                         array( 'addIndex', 'recentchanges',   'rc_user_text',     'patch-rc_user_text-index.sql' ),
  87
  88                         // 1.9
  89                         array( 'addField', 'user',          'user_newpass_time', 'patch-user_newpass_time.sql' ),
  90                         array( 'addTable', 'redirect',                           'patch-redirect.sql' ),
  91                         array( 'addTable', 'querycachetwo',                      'patch-querycachetwo.sql' ),
  92                         array( 'addField', 'ipblocks',      'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ),
  93                         array( 'doBacklinkingIndicesUpdate' ),
  94                         array( 'addField', 'recentchanges', 'rc_old_len',        'patch-rc_len.sql' ),
  95                         array( 'addField', 'user',          'user_editcount',    'patch-user_editcount.sql' ),
  96
  97                         // 1.10
  98                         array( 'doRestrictionsUpdate' ),
  99                         array( 'addField', 'logging',       'log_id',           'patch-log_id.sql' ),
 100                         array( 'addField', 'revision',      'rev_parent_id',    'patch-rev_parent_id.sql' ),
 101                         array( 'addField', 'page_restrictions', 'pr_id',        'patch-page_restrictions_sortkey.sql' ),
 102                         array( 'addField', 'revision',      'rev_len',          'patch-rev_len.sql' ),
 103                         array( 'addField', 'recentchanges', 'rc_deleted',       'patch-rc_deleted.sql' ),
 104                         array( 'addField', 'logging',       'log_deleted',      'patch-log_deleted.sql' ),
 105                         array( 'addField', 'archive',       'ar_deleted',       'patch-ar_deleted.sql' ),
 106                         array( 'addField', 'ipblocks',      'ipb_deleted',      'patch-ipb_deleted.sql' ),
 107                         array( 'addField', 'filearchive',   'fa_deleted',       'patch-fa_deleted.sql' ),
 108                         array( 'addField', 'archive',       'ar_len',           'patch-ar_len.sql' ),
 109
 110                         // 1.11
 111                         array( 'addField', 'ipblocks',      'ipb_block_email',  'patch-ipb_emailban.sql' ),
 112                         array( 'doCategorylinksIndicesUpdate' ),
 113                         array( 'addField', 'oldimage',      'oi_metadata',      'patch-oi_metadata.sql' ),
 114                         array( 'addIndex', 'archive',       'usertext_timestamp', 'patch-archive-user-index.sql' ),
 115                         array( 'addIndex', 'image',         'img_usertext_timestamp', 'patch-image-user-index.sql' ),
 116                         array( 'addIndex', 'oldimage',      'oi_usertext_timestamp', 'patch-oldimage-user-index.sql' ),
 117                         array( 'addField', 'archive',       'ar_page_id',       'patch-archive-page_id.sql' ),
 118                         array( 'addField', 'image',         'img_sha1',         'patch-img_sha1.sql' ),
 119
 120                         // 1.12
 121                         array( 'addTable', 'protected_titles',                  'patch-protected_titles.sql' ),
 122
 123                         // 1.13
 124                         array( 'addField', 'ipblocks',      'ipb_by_text',      'patch-ipb_by_text.sql' ),
 125                         array( 'addTable', 'page_props',                        'patch-page_props.sql' ),
 126                         array( 'addTable', 'updatelog',                         'patch-updatelog.sql' ),
 127                         array( 'addTable', 'category',                          'patch-category.sql' ),
 128                         array( 'doCategoryPopulation' ),
 129                         array( 'addField', 'archive',       'ar_parent_id',     'patch-ar_parent_id.sql' ),
 130                         array( 'addField', 'user_newtalk',  'user_last_timestamp', 'patch-user_last_timestamp.sql' ),
 131                         array( 'doPopulateParentId' ),
 132                         array( 'checkBin', 'protected_titles', 'pt_title',      'patch-pt_title-encoding.sql', ),
 133                         array( 'doMaybeProfilingMemoryUpdate' ),
 134                         array( 'doFilearchiveIndicesUpdate' ),
 135
 136                         // 1.14
 137                         array( 'addField', 'site_stats',    'ss_active_users',  'patch-ss_active_users.sql' ),
 138                         array( 'doActiveUsersInit' ),
 139                         array( 'addField', 'ipblocks',      'ipb_allow_usertalk', 'patch-ipb_allow_usertalk.sql' ),
 140
 141                         // 1.15
 142                         array( 'doUniquePlTlIl' ),
 143                         array( 'addTable', 'change_tag',                        'patch-change_tag.sql' ),
 144                         array( 'addTable', 'tag_summary',                       'patch-change_tag.sql' ),
 145                         array( 'addTable', 'valid_tag',                         'patch-change_tag.sql' ),
 146
 147                         // 1.16
 148                         array( 'addTable', 'user_properties',                   'patch-user_properties.sql' ),
 149                         array( 'addTable', 'log_search',                        'patch-log_search.sql' ),
 150                         array( 'addField', 'logging',       'log_user_text',    'patch-log_user_text.sql' ),
 151                         array( 'doLogUsertextPopulation' ), # listed separately from the previous update because 1.16 was released without this update
 152                         array( 'doLogSearchPopulation' ),
 153                         array( 'addTable', 'l10n_cache',                        'patch-l10n_cache.sql' ),
 154                         array( 'addTable', 'external_user',                     'patch-external_user.sql' ),
 155                         array( 'addIndex', 'log_search',    'ls_field_val',     'patch-log_search-rename-index.sql' ),
 156                         array( 'addIndex', 'change_tag',    'change_tag_rc_tag', 'patch-change_tag-indexes.sql' ),
 157                         array( 'addField', 'redirect',      'rd_interwiki',     'patch-rd_interwiki.sql' ),
 158                         array( 'doUpdateTranscacheField' ),
 159                         array( 'renameEuWikiId' ),
 160                         array( 'doUpdateMimeMinorField' ),
 161                         array( 'doPopulateRevLen' ),
 162
 163                         // 1.17
 164                         array( 'addTable', 'iwlinks',                           'patch-iwlinks.sql' ),
 165                         array( 'addIndex', 'iwlinks', 'iwl_prefix_title_from',  'patch-rename-iwl_prefix.sql' ),
 166                         array( 'addField', 'updatelog',     'ul_value',         'patch-ul_value.sql' ),
 167                         array( 'addField', 'interwiki',     'iw_api',           'patch-iw_api_and_wikiid.sql' ),
 168                         array( 'dropIndex', 'iwlinks',      'iwl_prefix',       'patch-kill-iwl_prefix.sql' ),
 169                         array( 'dropIndex', 'iwlinks',      'iwl_prefix_from_title', 'patch-kill-iwl_pft.sql' ),
 170                         array( 'addField', 'categorylinks', 'cl_collation',     'patch-categorylinks-better-collation.sql' ),
 171                         array( 'doClFieldsUpdate' ),
 172                         array( 'doCollationUpdate' ),
 173                         array( 'addTable', 'msg_resource',                      'patch-msg_resource.sql' ),
 174                         array( 'addTable', 'module_deps',                       'patch-module_deps.sql' ),
 175                         array( 'dropIndex', 'archive',      'ar_page_revid',    'patch-archive_kill_ar_page_revid.sql' ),
 176                         array( 'addIndex', 'archive',       'ar_revid',         'patch-archive_ar_revid.sql' ),
 177                         array( 'doLangLinksLengthUpdate' ),
 178
 179                         // 1.18
 180                         array( 'doUserNewTalkTimestampNotNull' ),
 181                         array( 'addIndex', 'user',          'user_email',       'patch-user_email_index.sql' ),
 182                         array( 'modifyField', 'user_properties', 'up_property', 'patch-up_property.sql' ),
 183
 184                         // 1.19
 185                         array( 'addTable', 'config', 'patch-config.sql' ),
 186                 );
 187         }
 188
 189         /**
 190          * 1.4 betas were missing the 'binary' marker from logging.log_title,
 191          * which causes a collation mismatch error on joins in MySQL 4.1.
 192          *
 193          * @param $table String: table name
 194          * @param $field String: field name to check
 195          * @param $patchFile String: path to the patch to correct the field
 196          */
 197         protected function checkBin( $table, $field, $patchFile ) {
 198                 $tableName = $this->db->tableName( $table );
 199                 $res = $this->db->query( "SELECT $field FROM $tableName LIMIT 0", __METHOD__ );
 200                 $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
 201
 202                 if ( in_array( 'binary', $flags ) ) {
 203                         $this->output( "...$table table has correct $field encoding.\n" );
 204                 } else {
 205                         $this->output( "Fixing $field encoding on $table table... " );
 206                         $this->applyPatch( $patchFile );
 207                         $this->output( "done.\n" );
 208                 }
 209         }
 210
 211         /**
 212          * Check whether an index contain a field
 213          *
 214          * @param $table String: table name
 215          * @param $index String: index name to check
 216          * @param $field String: field that should be in the index
 217          * @return Boolean
 218          */
 219         protected function indexHasField( $table, $index, $field ) {
 220                 $info = $this->db->indexInfo( $table, $index, __METHOD__ );
 221                 if ( $info ) {
 222                         foreach ( $info as $row ) {
 223                                 if ( $row->Column_name == $field ) {
 224                                         $this->output( "...index $index on table $table includes field $field\n" );
 225                                         return true;
 226                                 }
 227                         }
 228                 }
 229                 $this->output( "...index $index on table $table has no field $field; adding\n" );
 230                 return false;
 231         }
 232
 233         /**
 234          * Check that interwiki table exists; if it doesn't source it
 235          */
 236         protected function doInterwikiUpdate() {
 237                 global $IP;
 238
 239                 if ( $this->db->tableExists( "interwiki" ) ) {
 240                         $this->output( "...already have interwiki table\n" );
 241                         return;
 242                 }
 243
 244                 $this->output( 'Creating interwiki table...' );
 245                 $this->applyPatch( 'patch-interwiki.sql' );
 246                 $this->output( "ok\n" );
 247                 $this->output( 'Adding default interwiki definitions...' );
 248                 $this->applyPatch( "$IP/maintenance/interwiki.sql", true );
 249                 $this->output( "done.\n" );
 250         }
 251
 252         /**
 253          * Check that proper indexes are in place
 254          */
 255         protected function doIndexUpdate() {
 256                 $meta = $this->db->fieldInfo( 'recentchanges', 'rc_timestamp' );
 257                 if ( $meta->isMultipleKey() ) {
 258                         $this->output( "...indexes seem up to 20031107 standards\n" );
 259                         return;
 260                 }
 261
 262                 $this->output( "Updating indexes to 20031107..." );
 263                 $this->applyPatch( 'patch-indexes.sql', true );
 264                 $this->output( "done.\n" );
 265         }
 266
 267         protected function doOldLinksUpdate() {
 268                 $cl = $this->maintenance->runChild( 'ConvertLinks' );
 269                 $cl->execute();
 270         }
 271
 272         protected function doFixAncientImagelinks() {
 273                 $info = $this->db->fieldInfo( 'imagelinks', 'il_from' );
 274                 if ( !$info || $info->type() !== 'string' ) {
 275                         $this->output( "...il_from OK\n" );
 276                         return;
 277                 }
 278
 279                 $this->output( "Fixing ancient broken imagelinks table.\n" );
 280                 $this->output( "NOTE: you will have to run maintenance/refreshLinks.php after this.\n" );
 281                 $this->applyPatch( 'patch-fix-il_from.sql' );
 282                 $this->output( "done.\n" );
 283         }
 284
 285         /**
 286          * Check if we need to add talk page rows to the watchlist
 287          */
 288         function doWatchlistUpdate() {
 289                 $talk = $this->db->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', __METHOD__ );
 290                 $nontalk = $this->db->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', __METHOD__ );
 291                 if ( $talk == $nontalk ) {
 292                         $this->output( "...watchlist talk page rows already present\n" );
 293                         return;
 294                 }
 295
 296                 $this->output( "Adding missing watchlist talk page rows... " );
 297                 $this->db->insertSelect( 'watchlist', 'watchlist',
 298                         array(
 299                                 'wl_user' => 'wl_user',
 300                                 'wl_namespace' => 'wl_namespace | 1',
 301                                 'wl_title' => 'wl_title',
 302                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 303                         ), array( 'NOT (wl_namespace & 1)' ), __METHOD__, 'IGNORE' );
 304                 $this->output( "done.\n" );
 305         }
 306
 307         function doSchemaRestructuring() {
 308                 if ( $this->db->tableExists( 'page' ) ) {
 309                         $this->output( "...page table already exists.\n" );
 310                         return;
 311                 }
 312
 313                 $this->output( "...converting from cur/old to page/revision/text DB structure.\n" );
 314                 $this->output( wfTimestamp( TS_DB ) );
 315                 $this->output( "......checking for duplicate entries.\n" );
 316
 317                 list ( $cur, $old, $page, $revision, $text ) = $this->db->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 318
 319                 $rows = $this->db->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 320                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", __METHOD__ );
 321
 322                 if ( $rows->numRows() > 0 ) {
 323                         $this->output( wfTimestamp( TS_DB ) );
 324                         $this->output( "......<b>Found duplicate entries</b>\n" );
 325                         $this->output( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 326                         $duplicate = array();
 327                         foreach ( $rows as $row ) {
 328                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 329                                         $duplicate[$row->cur_namespace] = array();
 330                                 }
 331                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 332                                 $this->output( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 333                         }
 334                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 335                         $firstCond = true;
 336                         foreach ( $duplicate as $ns => $titles ) {
 337                                 if ( $firstCond ) {
 338                                         $firstCond = false;
 339                                 } else {
 340                                         $sql .= ' OR ';
 341                                 }
 342                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 343                                 $first = true;
 344                                 foreach ( $titles as $t ) {
 345                                         if ( $first ) {
 346                                                 $sql .= $this->db->addQuotes( $t );
 347                                                 $first = false;
 348                                         } else {
 349                                                 $sql .= ', ' . $this->db->addQuotes( $t );
 350                                         }
 351                                 }
 352                                 $sql .= ") ) \n";
 353                         }
 354                         # By sorting descending, the most recent entry will be the first in the list.
 355                         # All following entries will be deleted by the next while-loop.
 356                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 357
 358                         $rows = $this->db->query( $sql, __METHOD__ );
 359
 360                         $prev_title = $prev_namespace = false;
 361                         $deleteId = array();
 362
 363                         foreach ( $rows as $row ) {
 364                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 365                                         $deleteId[] = $row->cur_id;
 366                                 }
 367                                 $prev_title     = $row->cur_title;
 368                                 $prev_namespace = $row->cur_namespace;
 369                         }
 370                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 371                         $this->db->query( $sql, __METHOD__ );
 372                         $this->output( wfTimestamp( TS_DB ) );
 373                         $this->output( "......<b>Deleted</b> " . $this->db->affectedRows() . " records.\n" );
 374                 }
 375
 376                 $this->output( wfTimestamp( TS_DB ) );
 377                 $this->output( "......Creating tables.\n" );
 378                 $this->db->query( "CREATE TABLE $page (
 379                         page_id int(8) unsigned NOT NULL auto_increment,
 380                         page_namespace int NOT NULL,
 381                         page_title varchar(255) binary NOT NULL,
 382                         page_restrictions tinyblob NOT NULL,
 383                         page_counter bigint(20) unsigned NOT NULL default '0',
 384                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 385                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 386                         page_random real unsigned NOT NULL,
 387                         page_touched char(14) binary NOT NULL default '',
 388                         page_latest int(8) unsigned NOT NULL,
 389                         page_len int(8) unsigned NOT NULL,
 390
 391                         PRIMARY KEY page_id (page_id),
 392                         UNIQUE INDEX name_title (page_namespace,page_title),
 393                         INDEX (page_random),
 394                         INDEX (page_len)
 395                         ) ENGINE=InnoDB", __METHOD__ );
 396                 $this->db->query( "CREATE TABLE $revision (
 397                         rev_id int(8) unsigned NOT NULL auto_increment,
 398                         rev_page int(8) unsigned NOT NULL,
 399                         rev_comment tinyblob NOT NULL,
 400                         rev_user int(5) unsigned NOT NULL default '0',
 401                         rev_user_text varchar(255) binary NOT NULL default '',
 402                         rev_timestamp char(14) binary NOT NULL default '',
 403                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 404                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 405                         rev_len int(8) unsigned,
 406                         rev_parent_id int(8) unsigned default NULL,
 407                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 408                         UNIQUE INDEX rev_id (rev_id),
 409                         INDEX rev_timestamp (rev_timestamp),
 410                         INDEX page_timestamp (rev_page,rev_timestamp),
 411                         INDEX user_timestamp (rev_user,rev_timestamp),
 412                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 413                         ) ENGINE=InnoDB", __METHOD__ );
 414
 415                 $this->output( wfTimestamp( TS_DB ) );
 416                 $this->output( "......Locking tables.\n" );
 417                 $this->db->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", __METHOD__ );
 418
 419                 $maxold = intval( $this->db->selectField( 'old', 'max(old_id)', '', __METHOD__ ) );
 420                 $this->output( wfTimestamp( TS_DB ) );
 421                 $this->output( "......maxold is {$maxold}\n" );
 422
 423                 $this->output( wfTimestamp( TS_DB ) );
 424                 global $wgLegacySchemaConversion;
 425                 if ( $wgLegacySchemaConversion ) {
 426                         // Create HistoryBlobCurStub entries.
 427                         // Text will be pulled from the leftover 'cur' table at runtime.
 428                         $this->output( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 429                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 430                         $cur_flags = "'object'";
 431                 } else {
 432                         // Copy all cur text in immediately: this may take longer but avoids
 433                         // having to keep an extra table around.
 434                         $this->output( "......Moving text from cur.\n" );
 435                         $cur_text = 'cur_text';
 436                         $cur_flags = "''";
 437                 }
 438                 $this->db->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 439                                         old_timestamp, old_minor_edit, old_flags)
 440                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 441                         FROM $cur", __METHOD__ );
 442
 443                 $this->output( wfTimestamp( TS_DB ) );
 444                 $this->output( "......Setting up revision table.\n" );
 445                 $this->db->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 446                                 rev_minor_edit)
 447                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 448                                 old_timestamp, old_minor_edit
 449                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", __METHOD__ );
 450
 451                 $this->output( wfTimestamp( TS_DB ) );
 452                 $this->output( "......Setting up page table.\n" );
 453                 $this->db->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 454                         page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 455                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 456                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 457                         FROM $cur,$revision
 458                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", __METHOD__ );
 459
 460                 $this->output( wfTimestamp( TS_DB ) );
 461                 $this->output( "......Unlocking tables.\n" );
 462                 $this->db->query( "UNLOCK TABLES", __METHOD__ );
 463
 464                 $this->output( wfTimestamp( TS_DB ) );
 465                 $this->output( "......Renaming old.\n" );
 466                 $this->db->query( "ALTER TABLE $old RENAME TO $text", __METHOD__ );
 467
 468                 $this->output( wfTimestamp( TS_DB ) );
 469                 $this->output( "...done.\n" );
 470         }
 471
 472         protected function doNamespaceSize() {
 473                 $tables = array(
 474                         'page'          => 'page',
 475                         'archive'       => 'ar',
 476                         'recentchanges' => 'rc',
 477                         'watchlist'     => 'wl',
 478                         'querycache'    => 'qc',
 479                         'logging'       => 'log',
 480                 );
 481                 foreach ( $tables as $table => $prefix ) {
 482                         $field = $prefix . '_namespace';
 483
 484                         $tablename = $this->db->tableName( $table );
 485                         $result = $this->db->query( "SHOW COLUMNS FROM $tablename LIKE '$field'", __METHOD__ );
 486                         $info = $this->db->fetchObject( $result );
 487
 488                         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 489                                 $this->output( "...$field is already a full int ($info->Type).\n" );
 490                         } else {
 491                                 $this->output( "Promoting $field from $info->Type to int... " );
 492                                 $this->db->query( "ALTER TABLE $tablename MODIFY $field int NOT NULL", __METHOD__ );
 493                                 $this->output( "done.\n" );
 494                         }
 495                 }
 496         }
 497
 498         protected function doPagelinksUpdate() {
 499                 if ( $this->db->tableExists( 'pagelinks' ) ) {
 500                         $this->output( "...already have pagelinks table.\n" );
 501                         return;
 502                 }
 503
 504                 $this->output( "Converting links and brokenlinks tables to pagelinks... " );
 505                 $this->applyPatch( 'patch-pagelinks.sql' );
 506                 $this->output( "done.\n" );
 507
 508                 global $wgContLang;
 509                 foreach ( MWNamespace::getCanonicalNamespaces() as $ns => $name ) {
 510                         if ( $ns == 0 ) {
 511                                 continue;
 512                         }
 513
 514                         $this->output( "Cleaning up broken links for namespace $ns... " );
 515
 516                         $pagelinks = $this->db->tableName( 'pagelinks' );
 517                         $name = $wgContLang->getNsText( $ns );
 518                         $prefix = $this->db->strencode( $name );
 519                         $likeprefix = str_replace( '_', '\\_', $prefix );
 520
 521                         $sql = "UPDATE $pagelinks
 522                                            SET pl_namespace=$ns,
 523                                                    pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 524                                          WHERE pl_namespace=0
 525                                            AND pl_title LIKE '$likeprefix:%'";
 526
 527                         $this->db->query( $sql, __METHOD__ );
 528                         $this->output( "done.\n" );
 529                 }
 530         }
 531
 532         protected function doUserUniqueUpdate() {
 533                 $duper = new UserDupes( $this->db, array( $this, 'output' ) );
 534                 if ( $duper->hasUniqueIndex() ) {
 535                         $this->output( "...already have unique user_name index.\n" );
 536                         return;
 537                 }
 538
 539                 if ( !$duper->clearDupes() ) {
 540                         $this->output( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 541                 }
 542                 $this->output( "Adding unique index on user_name... " );
 543                 $this->applyPatch( 'patch-user_nameindex.sql' );
 544                 $this->output( "done.\n" );
 545         }
 546
 547         protected function doUserGroupsUpdate() {
 548                 if ( $this->db->tableExists( 'user_groups' ) ) {
 549                         $info = $this->db->fieldInfo( 'user_groups', 'ug_group' );
 550                         if ( $info->type() == 'int' ) {
 551                                 $oldug = $this->db->tableName( 'user_groups' );
 552                                 $newug = $this->db->tableName( 'user_groups_bogus' );
 553                                 $this->output( "user_groups table exists but is in bogus intermediate format. Renaming to $newug... " );
 554                                 $this->db->query( "ALTER TABLE $oldug RENAME TO $newug", __METHOD__ );
 555                                 $this->output( "ok\n" );
 556
 557                                 $this->output( "Re-adding fresh user_groups table... " );
 558                                 $this->applyPatch( 'patch-user_groups.sql' );
 559                                 $this->output( "ok\n" );
 560
 561                                 $this->output( "***\n" );
 562                                 $this->output( "*** WARNING: You will need to manually fix up user permissions in the user_groups\n" );
 563                                 $this->output( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 564                                 $this->output( "***\n" );
 565                         } else {
 566                                 $this->output( "...user_groups table exists and is in current format.\n" );
 567                         }
 568                         return;
 569                 }
 570
 571                 $this->output( "Adding user_groups table... " );
 572                 $this->applyPatch( 'patch-user_groups.sql' );
 573                 $this->output( "ok\n" );
 574
 575                 if ( !$this->db->tableExists( 'user_rights' ) ) {
 576                         if ( $this->db->fieldExists( 'user', 'user_rights' ) ) {
 577                                 $this->output( "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion..." );
 578                                 $this->db->applyPatch( 'patch-user_rights.sql' );
 579                                 $this->output( "ok\n" );
 580                         } else {
 581                                 $this->output( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 582                                 $this->output( "*** You may need to manually configure some sysops by manipulating\n" );
 583                                 $this->output( "*** the user_groups table.\n" );
 584                                 return;
 585                         }
 586                 }
 587
 588                 $this->output( "Converting user_rights table to user_groups... " );
 589                 $result = $this->db->select( 'user_rights',
 590                         array( 'ur_user', 'ur_rights' ),
 591                         array( "ur_rights != ''" ),
 592                         __METHOD__ );
 593
 594                 foreach ( $result as $row ) {
 595                         $groups = array_unique(
 596                                 array_map( 'trim',
 597                                         explode( ',', $row->ur_rights ) ) );
 598
 599                         foreach ( $groups as $group ) {
 600                                 $this->db->insert( 'user_groups',
 601                                         array(
 602                                                 'ug_user'  => $row->ur_user,
 603                                                 'ug_group' => $group ),
 604                                         __METHOD__ );
 605                         }
 606                 }
 607                 $this->output( "done.\n" );
 608         }
 609
 610         /**
 611          * Make sure wl_notificationtimestamp can be NULL,
 612          * and update old broken items.
 613          */
 614         protected function doWatchlistNull() {
 615                 $info = $this->db->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 616                 if ( $info->isNullable() ) {
 617                         $this->output( "...wl_notificationtimestamp is already nullable.\n" );
 618                         return;
 619                 }
 620
 621                 $this->output( "Making wl_notificationtimestamp nullable... " );
 622                 $this->applyPatch( 'patch-watchlist-null.sql' );
 623                 $this->output( "done.\n" );
 624         }
 625
 626         /**
 627          * Set page_random field to a random value where it is equals to 0.
 628          *
 629          * @see bug 3946
 630          */
 631         protected function doPageRandomUpdate() {
 632                 $page = $this->db->tableName( 'page' );
 633                 $this->db->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", __METHOD__ );
 634                 $rows = $this->db->affectedRows();
 635
 636                 if( $rows ) {
 637                         $this->output( "Set page_random to a random value on $rows rows where it was set to 0\n" );
 638                 } else {
 639                         $this->output( "...no page_random rows needed to be set\n" );
 640                 }
 641         }
 642
 643         protected function doTemplatelinksUpdate() {
 644                 if ( $this->db->tableExists( 'templatelinks' ) ) {
 645                         $this->output( "...templatelinks table already exists\n" );
 646                         return;
 647                 }
 648
 649                 $this->output( "Creating templatelinks table...\n" );
 650                 $this->applyPatch( 'patch-templatelinks.sql' );
 651                 $this->output( "Populating...\n" );
 652                 if ( wfGetLB()->getServerCount() > 1 ) {
 653                         // Slow, replication-friendly update
 654                         $res = $this->db->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 655                                 array( 'pl_namespace' => NS_TEMPLATE ), __METHOD__ );
 656                         $count = 0;
 657                         foreach ( $res as $row ) {
 658                                 $count = ( $count + 1 ) % 100;
 659                                 if ( $count == 0 ) {
 660                                         wfWaitForSlaves();
 661                                 }
 662                                 $this->db->insert( 'templatelinks',
 663                                         array(
 664                                                 'tl_from' => $row->pl_from,
 665                                                 'tl_namespace' => $row->pl_namespace,
 666                                                 'tl_title' => $row->pl_title,
 667                                         ), __METHOD__
 668                                 );
 669
 670                         }
 671                 } else {
 672                         // Fast update
 673                         $this->db->insertSelect( 'templatelinks', 'pagelinks',
 674                                 array(
 675                                         'tl_from' => 'pl_from',
 676                                         'tl_namespace' => 'pl_namespace',
 677                                         'tl_title' => 'pl_title'
 678                                 ), array(
 679                                         'pl_namespace' => 10
 680                                 ), __METHOD__
 681                         );
 682                 }
 683                 $this->output( "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n" );
 684         }
 685
 686         protected function doBacklinkingIndicesUpdate() {
 687                 if ( !$this->indexHasField( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
 688                         !$this->indexHasField( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
 689                         !$this->indexHasField( 'imagelinks', 'il_to', 'il_from' ) )
 690                 {
 691                         $this->applyPatch( 'patch-backlinkindexes.sql' );
 692                         $this->output( "...backlinking indices updated\n" );
 693                 }
 694         }
 695
 696         /**
 697          * Adding page_restrictions table, obsoleting page.page_restrictions.
 698          * Migrating old restrictions to new table
 699          * -- Andrew Garrett, January 2007.
 700          */
 701         protected function doRestrictionsUpdate() {
 702                 if ( $this->db->tableExists( 'page_restrictions' ) ) {
 703                         $this->output( "...page_restrictions table already exists.\n" );
 704                         return;
 705                 }
 706
 707                 $this->output( "Creating page_restrictions table..." );
 708                 $this->applyPatch( 'patch-page_restrictions.sql' );
 709                 $this->applyPatch( 'patch-page_restrictions_sortkey.sql' );
 710                 $this->output( "done.\n" );
 711
 712                 $this->output( "Migrating old restrictions to new table...\n" );
 713                 $task = $this->maintenance->runChild( 'UpdateRestrictions' );
 714                 $task->execute();
 715         }
 716
 717         protected function doCategorylinksIndicesUpdate() {
 718                 if ( !$this->indexHasField( 'categorylinks', 'cl_sortkey', 'cl_from' ) ) {
 719                         $this->applyPatch( 'patch-categorylinksindex.sql' );
 720                         $this->output( "...categorylinks indices updated\n" );
 721                 }
 722         }
 723
 724         protected function doCategoryPopulation() {
 725                 if ( $this->updateRowExists( 'populate category' ) ) {
 726                         $this->output( "...category table already populated.\n" );
 727                         return;
 728                 }
 729
 730                 $this->output(
 731                         "Populating category table, printing progress markers. " .
 732                         "For large databases, you\n" .
 733                         "may want to hit Ctrl-C and do this manually with maintenance/\n" .
 734                         "populateCategory.php.\n"
 735                 );
 736                 $task = $this->maintenance->runChild( 'PopulateCategory' );
 737                 $task->execute();
 738                 $this->output( "Done populating category table.\n" );
 739         }
 740
 741         protected function doPopulateParentId() {
 742                 if ( $this->updateRowExists( 'populate rev_parent_id' ) ) {
 743                         $this->output( "...rev_parent_id column already populated.\n" );
 744                         return;
 745                 }
 746
 747                 $task = $this->maintenance->runChild( 'PopulateParentId' );
 748                 $task->execute();
 749         }
 750
 751         protected function doMaybeProfilingMemoryUpdate() {
 752                 if ( !$this->db->tableExists( 'profiling' ) ) {
 753                         // Simply ignore
 754                 } elseif ( $this->db->fieldExists( 'profiling', 'pf_memory' ) ) {
 755                         $this->output( "...profiling table has pf_memory field.\n" );
 756                 } else {
 757                         $this->output( "Adding pf_memory field to table profiling..." );
 758                         $this->applyPatch( 'patch-profiling-memory.sql' );
 759                         $this->output( "done.\n" );
 760                 }
 761         }
 762
 763         protected function doFilearchiveIndicesUpdate() {
 764                 $info = $this->db->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
 765                 if ( !$info ) {
 766                         $this->output( "Updating filearchive indices..." );
 767                         $this->applyPatch( 'patch-filearchive-user-index.sql' );
 768                         $this->output( "done.\n" );
 769                 }
 770         }
 771
 772         protected function doUniquePlTlIl() {
 773                 $info = $this->db->indexInfo( 'pagelinks', 'pl_namespace' );
 774                 if ( is_array( $info ) && !$info[0]->Non_unique ) {
 775                         $this->output( "...pl_namespace, tl_namespace, il_to indices are already UNIQUE.\n" );
 776                         return;
 777                 }
 778
 779                 $this->output( "Making pl_namespace, tl_namespace and il_to indices UNIQUE... " );
 780                 $this->applyPatch( 'patch-pl-tl-il-unique.sql' );
 781                 $this->output( "done.\n" );
 782         }
 783
 784         protected function renameEuWikiId() {
 785                 if ( $this->db->fieldExists( 'external_user', 'eu_local_id' ) ) {
 786                         $this->output( "...eu_wiki_id already renamed to eu_local_id.\n" );
 787                         return;
 788                 }
 789
 790                 $this->output( "Renaming eu_wiki_id -> eu_local_id... " );
 791                 $this->applyPatch( 'patch-eu_local_id.sql' );
 792                 $this->output( "done.\n" );
 793         }
 794
 795         protected function doUpdateMimeMinorField() {
 796                 if ( $this->updateRowExists( 'mime_minor_length' ) ) {
 797                         $this->output( "...*_mime_minor fields are already long enough.\n" );
 798                         return;
 799                 }
 800
 801                 $this->output( "Altering all *_mime_minor fields to 100 bytes in size ... " );
 802                 $this->applyPatch( 'patch-mime_minor_length.sql' );
 803                 $this->output( "done.\n" );
 804         }
 805
 806         protected function doPopulateRevLen() {
 807                 if ( $this->updateRowExists( 'populate rev_len' ) ) {
 808                         $this->output( "...rev_len column already populated.\n" );
 809                         return;
 810                 }
 811
 812                 $task = $this->maintenance->runChild( 'PopulateRevisionLength' );
 813                 $task->execute();
 814         }
 815
 816         protected function doClFieldsUpdate() {
 817                 if ( $this->updateRowExists( 'cl_fields_update' ) ) {
 818                         $this->output( "...categorylinks up-to-date.\n" );
 819                         return;
 820                 }
 821
 822                 $this->output( 'Updating categorylinks (again)...' );
 823                 $this->applyPatch( 'patch-categorylinks-better-collation2.sql' );
 824                 $this->output( "done.\n" );
 825         }
 826
 827         protected function doLangLinksLengthUpdate() {
 828                 $langlinks = $this->db->tableName( 'langlinks' );
 829                 $res = $this->db->query( "SHOW COLUMNS FROM $langlinks LIKE 'll_lang'" );
 830                 $row = $this->db->fetchObject( $res );
 831
 832                 if ( $row && $row->Type == "varbinary(10)" ) {
 833                         $this->output( 'Updating length of ll_lang in langlinks...' );
 834                         $this->applyPatch( 'patch-langlinks-ll_lang-20.sql' );
 835                         $this->output( "done.\n" );
 836                 } else {
 837                         $this->output( "...ll_lang is up-to-date.\n" );
 838                 }
 839         }
 840
 841         protected function doUserNewTalkTimestampNotNull() {
 842                 $info = $this->db->fieldInfo( 'user_newtalk', 'user_last_timestamp' );
 843                 if ( $info->isNullable() ) {
 844                         $this->output( "...user_last_timestamp is already nullable.\n" );
 845                         return;
 846                 }
 847
 848                 $this->output( "Making user_last_timestamp nullable... " );
 849                 $this->applyPatch( 'patch-user-newtalk-timestamp-null.sql' );
 850                 $this->output( "done.\n" );
 851         }
 852 }