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