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                 );
 182         }
 183
 184         /**
 185          * 1.4 betas were missing the 'binary' marker from logging.log_title,
 186          * which causes a collation mismatch error on joins in MySQL 4.1.
 187          *
 188          * @param $table String: table name
 189          * @param $field String: field name to check
 190          * @param $patchFile String: path to the patch to correct the field
 191          */
 192         protected function checkBin( $table, $field, $patchFile ) {
 193                 $tableName = $this->db->tableName( $table );
 194                 $res = $this->db->query( "SELECT $field FROM $tableName LIMIT 0", __METHOD__ );
 195                 $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
 196
 197                 if ( in_array( 'binary', $flags ) ) {
 198                         $this->output( "...$table table has correct $field encoding.\n" );
 199                 } else {
 200                         $this->output( "Fixing $field encoding on $table table... " );
 201                         $this->applyPatch( $patchFile );
 202                         $this->output( "done.\n" );
 203                 }
 204         }
 205
 206         /**
 207          * Check whether an index contain a field
 208          *
 209          * @param $table String: table name
 210          * @param $index String: index name to check
 211          * @param $field String: field that should be in the index
 212          * @return Boolean
 213          */
 214         protected function indexHasField( $table, $index, $field ) {
 215                 $info = $this->db->indexInfo( $table, $index, __METHOD__ );
 216                 if ( $info ) {
 217                         foreach ( $info as $row ) {
 218                                 if ( $row->Column_name == $field ) {
 219                                         $this->output( "...index $index on table $table includes field $field\n" );
 220                                         return true;
 221                                 }
 222                         }
 223                 }
 224                 $this->output( "...index $index on table $table has no field $field; adding\n" );
 225                 return false;
 226         }
 227
 228         /**
 229          * Check that interwiki table exists; if it doesn't source it
 230          */
 231         protected function doInterwikiUpdate() {
 232                 global $IP;
 233
 234                 if ( $this->db->tableExists( "interwiki" ) ) {
 235                         $this->output( "...already have interwiki table\n" );
 236                         return;
 237                 }
 238
 239                 $this->output( 'Creating interwiki table...' );
 240                 $this->applyPatch( 'patch-interwiki.sql' );
 241                 $this->output( "ok\n" );
 242                 $this->output( 'Adding default interwiki definitions...' );
 243                 $this->applyPatch( "$IP/maintenance/interwiki.sql", true );
 244                 $this->output( "done.\n" );
 245         }
 246
 247         /**
 248          * Check that proper indexes are in place
 249          */
 250         protected function doIndexUpdate() {
 251                 $meta = $this->db->fieldInfo( 'recentchanges', 'rc_timestamp' );
 252                 if ( $meta->isMultipleKey() ) {
 253                         $this->output( "...indexes seem up to 20031107 standards\n" );
 254                         return;
 255                 }
 256
 257                 $this->output( "Updating indexes to 20031107..." );
 258                 $this->applyPatch( 'patch-indexes.sql', true );
 259                 $this->output( "done.\n" );
 260         }
 261
 262         protected function doOldLinksUpdate() {
 263                 $cl = $this->maintenance->runChild( 'ConvertLinks' );
 264                 $cl->execute();
 265         }
 266
 267         protected function doFixAncientImagelinks() {
 268                 $info = $this->db->fieldInfo( 'imagelinks', 'il_from' );
 269                 if ( !$info || $info->type() !== 'string' ) {
 270                         $this->output( "...il_from OK\n" );
 271                         return;
 272                 }
 273
 274                 $this->output( "Fixing ancient broken imagelinks table.\n" );
 275                 $this->output( "NOTE: you will have to run maintenance/refreshLinks.php after this.\n" );
 276                 $this->applyPatch( 'patch-fix-il_from.sql' );
 277                 $this->output( "done.\n" );
 278         }
 279
 280         /**
 281          * Check if we need to add talk page rows to the watchlist
 282          */
 283         function doWatchlistUpdate() {
 284                 $talk = $this->db->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', __METHOD__ );
 285                 $nontalk = $this->db->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', __METHOD__ );
 286                 if ( $talk == $nontalk ) {
 287                         $this->output( "...watchlist talk page rows already present\n" );
 288                         return;
 289                 }
 290
 291                 $this->output( "Adding missing watchlist talk page rows... " );
 292                 $this->db->insertSelect( 'watchlist', 'watchlist',
 293                         array(
 294                                 'wl_user' => 'wl_user',
 295                                 'wl_namespace' => 'wl_namespace | 1',
 296                                 'wl_title' => 'wl_title',
 297                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 298                         ), array( 'NOT (wl_namespace & 1)' ), __METHOD__, 'IGNORE' );
 299                 $this->output( "done.\n" );
 300         }
 301
 302         function doSchemaRestructuring() {
 303                 if ( $this->db->tableExists( 'page' ) ) {
 304                         $this->output( "...page table already exists.\n" );
 305                         return;
 306                 }
 307
 308                 $this->output( "...converting from cur/old to page/revision/text DB structure.\n" );
 309                 $this->output( wfTimestamp( TS_DB ) );
 310                 $this->output( "......checking for duplicate entries.\n" );
 311
 312                 list ( $cur, $old, $page, $revision, $text ) = $this->db->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 313
 314                 $rows = $this->db->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 315                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", __METHOD__ );
 316
 317                 if ( $rows->numRows() > 0 ) {
 318                         $this->output( wfTimestamp( TS_DB ) );
 319                         $this->output( "......<b>Found duplicate entries</b>\n" );
 320                         $this->output( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 321                         $duplicate = array();
 322                         foreach ( $rows as $row ) {
 323                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 324                                         $duplicate[$row->cur_namespace] = array();
 325                                 }
 326                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 327                                 $this->output( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 328                         }
 329                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 330                         $firstCond = true;
 331                         foreach ( $duplicate as $ns => $titles ) {
 332                                 if ( $firstCond ) {
 333                                         $firstCond = false;
 334                                 } else {
 335                                         $sql .= ' OR ';
 336                                 }
 337                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 338                                 $first = true;
 339                                 foreach ( $titles as $t ) {
 340                                         if ( $first ) {
 341                                                 $sql .= $this->db->addQuotes( $t );
 342                                                 $first = false;
 343                                         } else {
 344                                                 $sql .= ', ' . $this->db->addQuotes( $t );
 345                                         }
 346                                 }
 347                                 $sql .= ") ) \n";
 348                         }
 349                         # By sorting descending, the most recent entry will be the first in the list.
 350                         # All following entries will be deleted by the next while-loop.
 351                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 352
 353                         $rows = $this->db->query( $sql, __METHOD__ );
 354
 355                         $prev_title = $prev_namespace = false;
 356                         $deleteId = array();
 357
 358                         foreach ( $rows as $row ) {
 359                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 360                                         $deleteId[] = $row->cur_id;
 361                                 }
 362                                 $prev_title     = $row->cur_title;
 363                                 $prev_namespace = $row->cur_namespace;
 364                         }
 365                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 366                         $this->db->query( $sql, __METHOD__ );
 367                         $this->output( wfTimestamp( TS_DB ) );
 368                         $this->output( "......<b>Deleted</b> " . $this->db->affectedRows() . " records.\n" );
 369                 }
 370
 371                 $this->output( wfTimestamp( TS_DB ) );
 372                 $this->output( "......Creating tables.\n" );
 373                 $this->db->query( "CREATE TABLE $page (
 374                         page_id int(8) unsigned NOT NULL auto_increment,
 375                         page_namespace int NOT NULL,
 376                         page_title varchar(255) binary NOT NULL,
 377                         page_restrictions tinyblob NOT NULL,
 378                         page_counter bigint(20) unsigned NOT NULL default '0',
 379                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 380                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 381                         page_random real unsigned NOT NULL,
 382                         page_touched char(14) binary NOT NULL default '',
 383                         page_latest int(8) unsigned NOT NULL,
 384                         page_len int(8) unsigned NOT NULL,
 385
 386                         PRIMARY KEY page_id (page_id),
 387                         UNIQUE INDEX name_title (page_namespace,page_title),
 388                         INDEX (page_random),
 389                         INDEX (page_len)
 390                         ) ENGINE=InnoDB", __METHOD__ );
 391                 $this->db->query( "CREATE TABLE $revision (
 392                         rev_id int(8) unsigned NOT NULL auto_increment,
 393                         rev_page int(8) unsigned NOT NULL,
 394                         rev_comment tinyblob NOT NULL,
 395                         rev_user int(5) unsigned NOT NULL default '0',
 396                         rev_user_text varchar(255) binary NOT NULL default '',
 397                         rev_timestamp char(14) binary NOT NULL default '',
 398                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 399                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 400                         rev_len int(8) unsigned,
 401                         rev_parent_id int(8) unsigned default NULL,
 402                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 403                         UNIQUE INDEX rev_id (rev_id),
 404                         INDEX rev_timestamp (rev_timestamp),
 405                         INDEX page_timestamp (rev_page,rev_timestamp),
 406                         INDEX user_timestamp (rev_user,rev_timestamp),
 407                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 408                         ) ENGINE=InnoDB", __METHOD__ );
 409
 410                 $this->output( wfTimestamp( TS_DB ) );
 411                 $this->output( "......Locking tables.\n" );
 412                 $this->db->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", __METHOD__ );
 413
 414                 $maxold = intval( $this->db->selectField( 'old', 'max(old_id)', '', __METHOD__ ) );
 415                 $this->output( wfTimestamp( TS_DB ) );
 416                 $this->output( "......maxold is {$maxold}\n" );
 417
 418                 $this->output( wfTimestamp( TS_DB ) );
 419                 global $wgLegacySchemaConversion;
 420                 if ( $wgLegacySchemaConversion ) {
 421                         // Create HistoryBlobCurStub entries.
 422                         // Text will be pulled from the leftover 'cur' table at runtime.
 423                         $this->output( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 424                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 425                         $cur_flags = "'object'";
 426                 } else {
 427                         // Copy all cur text in immediately: this may take longer but avoids
 428                         // having to keep an extra table around.
 429                         $this->output( "......Moving text from cur.\n" );
 430                         $cur_text = 'cur_text';
 431                         $cur_flags = "''";
 432                 }
 433                 $this->db->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 434                                         old_timestamp, old_minor_edit, old_flags)
 435                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 436                         FROM $cur", __METHOD__ );
 437
 438                 $this->output( wfTimestamp( TS_DB ) );
 439                 $this->output( "......Setting up revision table.\n" );
 440                 $this->db->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 441                                 rev_minor_edit)
 442                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 443                                 old_timestamp, old_minor_edit
 444                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", __METHOD__ );
 445
 446                 $this->output( wfTimestamp( TS_DB ) );
 447                 $this->output( "......Setting up page table.\n" );
 448                 $this->db->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 449                         page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 450                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 451                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 452                         FROM $cur,$revision
 453                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", __METHOD__ );
 454
 455                 $this->output( wfTimestamp( TS_DB ) );
 456                 $this->output( "......Unlocking tables.\n" );
 457                 $this->db->query( "UNLOCK TABLES", __METHOD__ );
 458
 459                 $this->output( wfTimestamp( TS_DB ) );
 460                 $this->output( "......Renaming old.\n" );
 461                 $this->db->query( "ALTER TABLE $old RENAME TO $text", __METHOD__ );
 462
 463                 $this->output( wfTimestamp( TS_DB ) );
 464                 $this->output( "...done.\n" );
 465         }
 466
 467         protected function doNamespaceSize() {
 468                 $tables = array(
 469                         'page'          => 'page',
 470                         'archive'       => 'ar',
 471                         'recentchanges' => 'rc',
 472                         'watchlist'     => 'wl',
 473                         'querycache'    => 'qc',
 474                         'logging'       => 'log',
 475                 );
 476                 foreach ( $tables as $table => $prefix ) {
 477                         $field = $prefix . '_namespace';
 478
 479                         $tablename = $this->db->tableName( $table );
 480                         $result = $this->db->query( "SHOW COLUMNS FROM $tablename LIKE '$field'", __METHOD__ );
 481                         $info = $this->db->fetchObject( $result );
 482
 483                         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 484                                 $this->output( "...$field is already a full int ($info->Type).\n" );
 485                         } else {
 486                                 $this->output( "Promoting $field from $info->Type to int... " );
 487                                 $this->db->query( "ALTER TABLE $tablename MODIFY $field int NOT NULL", __METHOD__ );
 488                                 $this->output( "done.\n" );
 489                         }
 490                 }
 491         }
 492
 493         protected function doPagelinksUpdate() {
 494                 if ( $this->db->tableExists( 'pagelinks' ) ) {
 495                         $this->output( "...already have pagelinks table.\n" );
 496                         return;
 497                 }
 498
 499                 $this->output( "Converting links and brokenlinks tables to pagelinks... " );
 500                 $this->applyPatch( 'patch-pagelinks.sql' );
 501                 $this->output( "done.\n" );
 502
 503                 global $wgContLang;
 504                 foreach ( MWNamespace::getCanonicalNamespaces() as $ns => $name ) {
 505                         if ( $ns == 0 ) {
 506                                 continue;
 507                         }
 508
 509                         $this->output( "Cleaning up broken links for namespace $ns... " );
 510
 511                         $pagelinks = $this->db->tableName( 'pagelinks' );
 512                         $name = $wgContLang->getNsText( $ns );
 513                         $prefix = $this->db->strencode( $name );
 514                         $likeprefix = str_replace( '_', '\\_', $prefix );
 515
 516                         $sql = "UPDATE $pagelinks
 517                                            SET pl_namespace=$ns,
 518                                                    pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 519                                          WHERE pl_namespace=0
 520                                            AND pl_title LIKE '$likeprefix:%'";
 521
 522                         $this->db->query( $sql, __METHOD__ );
 523                         $this->output( "done.\n" );
 524                 }
 525         }
 526
 527         protected function doUserUniqueUpdate() {
 528                 $duper = new UserDupes( $this->db, array( $this, 'output' ) );
 529                 if ( $duper->hasUniqueIndex() ) {
 530                         $this->output( "...already have unique user_name index.\n" );
 531                         return;
 532                 }
 533
 534                 if ( !$duper->clearDupes() ) {
 535                         $this->output( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 536                 }
 537                 $this->output( "Adding unique index on user_name... " );
 538                 $this->applyPatch( 'patch-user_nameindex.sql' );
 539                 $this->output( "done.\n" );
 540         }
 541
 542         protected function doUserGroupsUpdate() {
 543                 if ( $this->db->tableExists( 'user_groups' ) ) {
 544                         $info = $this->db->fieldInfo( 'user_groups', 'ug_group' );
 545                         if ( $info->type() == 'int' ) {
 546                                 $oldug = $this->db->tableName( 'user_groups' );
 547                                 $newug = $this->db->tableName( 'user_groups_bogus' );
 548                                 $this->output( "user_groups table exists but is in bogus intermediate format. Renaming to $newug... " );
 549                                 $this->db->query( "ALTER TABLE $oldug RENAME TO $newug", __METHOD__ );
 550                                 $this->output( "ok\n" );
 551
 552                                 $this->output( "Re-adding fresh user_groups table... " );
 553                                 $this->applyPatch( 'patch-user_groups.sql' );
 554                                 $this->output( "ok\n" );
 555
 556                                 $this->output( "***\n" );
 557                                 $this->output( "*** WARNING: You will need to manually fix up user permissions in the user_groups\n" );
 558                                 $this->output( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 559                                 $this->output( "***\n" );
 560                         } else {
 561                                 $this->output( "...user_groups table exists and is in current format.\n" );
 562                         }
 563                         return;
 564                 }
 565
 566                 $this->output( "Adding user_groups table... " );
 567                 $this->applyPatch( 'patch-user_groups.sql' );
 568                 $this->output( "ok\n" );
 569
 570                 if ( !$this->db->tableExists( 'user_rights' ) ) {
 571                         if ( $this->db->fieldExists( 'user', 'user_rights' ) ) {
 572                                 $this->output( "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion..." );
 573                                 $this->db->applyPatch( 'patch-user_rights.sql' );
 574                                 $this->output( "ok\n" );
 575                         } else {
 576                                 $this->output( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 577                                 $this->output( "*** You may need to manually configure some sysops by manipulating\n" );
 578                                 $this->output( "*** the user_groups table.\n" );
 579                                 return;
 580                         }
 581                 }
 582
 583                 $this->output( "Converting user_rights table to user_groups... " );
 584                 $result = $this->db->select( 'user_rights',
 585                         array( 'ur_user', 'ur_rights' ),
 586                         array( "ur_rights != ''" ),
 587                         __METHOD__ );
 588
 589                 foreach ( $result as $row ) {
 590                         $groups = array_unique(
 591                                 array_map( 'trim',
 592                                         explode( ',', $row->ur_rights ) ) );
 593
 594                         foreach ( $groups as $group ) {
 595                                 $this->db->insert( 'user_groups',
 596                                         array(
 597                                                 'ug_user'  => $row->ur_user,
 598                                                 'ug_group' => $group ),
 599                                         __METHOD__ );
 600                         }
 601                 }
 602                 $this->output( "done.\n" );
 603         }
 604
 605         /**
 606          * Make sure wl_notificationtimestamp can be NULL,
 607          * and update old broken items.
 608          */
 609         protected function doWatchlistNull() {
 610                 $info = $this->db->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 611                 if ( $info->isNullable() ) {
 612                         $this->output( "...wl_notificationtimestamp is already nullable.\n" );
 613                         return;
 614                 }
 615
 616                 $this->output( "Making wl_notificationtimestamp nullable... " );
 617                 $this->applyPatch( 'patch-watchlist-null.sql' );
 618                 $this->output( "done.\n" );
 619         }
 620
 621         /**
 622          * Set page_random field to a random value where it is equals to 0.
 623          *
 624          * @see bug 3946
 625          */
 626         protected function doPageRandomUpdate() {
 627                 $page = $this->db->tableName( 'page' );
 628                 $this->db->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", __METHOD__ );
 629                 $rows = $this->db->affectedRows();
 630
 631                 if( $rows ) {
 632                         $this->output( "Set page_random to a random value on $rows rows where it was set to 0\n" );
 633                 } else {
 634                         $this->output( "...no page_random rows needed to be set\n" );
 635                 }
 636         }
 637
 638         protected function doTemplatelinksUpdate() {
 639                 if ( $this->db->tableExists( 'templatelinks' ) ) {
 640                         $this->output( "...templatelinks table already exists\n" );
 641                         return;
 642                 }
 643
 644                 $this->output( "Creating templatelinks table...\n" );
 645                 $this->applyPatch( 'patch-templatelinks.sql' );
 646                 $this->output( "Populating...\n" );
 647                 if ( wfGetLB()->getServerCount() > 1 ) {
 648                         // Slow, replication-friendly update
 649                         $res = $this->db->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 650                                 array( 'pl_namespace' => NS_TEMPLATE ), __METHOD__ );
 651                         $count = 0;
 652                         foreach ( $res as $row ) {
 653                                 $count = ( $count + 1 ) % 100;
 654                                 if ( $count == 0 ) {
 655                                         wfWaitForSlaves( 10 );
 656                                 }
 657                                 $this->db->insert( 'templatelinks',
 658                                         array(
 659                                                 'tl_from' => $row->pl_from,
 660                                                 'tl_namespace' => $row->pl_namespace,
 661                                                 'tl_title' => $row->pl_title,
 662                                         ), __METHOD__
 663                                 );
 664
 665                         }
 666                 } else {
 667                         // Fast update
 668                         $this->db->insertSelect( 'templatelinks', 'pagelinks',
 669                                 array(
 670                                         'tl_from' => 'pl_from',
 671                                         'tl_namespace' => 'pl_namespace',
 672                                         'tl_title' => 'pl_title'
 673                                 ), array(
 674                                         'pl_namespace' => 10
 675                                 ), __METHOD__
 676                         );
 677                 }
 678                 $this->output( "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n" );
 679         }
 680
 681         protected function doBacklinkingIndicesUpdate() {
 682                 if ( !$this->indexHasField( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
 683                         !$this->indexHasField( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
 684                         !$this->indexHasField( 'imagelinks', 'il_to', 'il_from' ) )
 685                 {
 686                         $this->applyPatch( 'patch-backlinkindexes.sql' );
 687                         $this->output( "...backlinking indices updated\n" );
 688                 }
 689         }
 690
 691         /**
 692          * Adding page_restrictions table, obsoleting page.page_restrictions.
 693          * Migrating old restrictions to new table
 694          * -- Andrew Garrett, January 2007.
 695          */
 696         protected function doRestrictionsUpdate() {
 697                 if ( $this->db->tableExists( 'page_restrictions' ) ) {
 698                         $this->output( "...page_restrictions table already exists.\n" );
 699                         return;
 700                 }
 701
 702                 $this->output( "Creating page_restrictions table..." );
 703                 $this->applyPatch( 'patch-page_restrictions.sql' );
 704                 $this->applyPatch( 'patch-page_restrictions_sortkey.sql' );
 705                 $this->output( "done.\n" );
 706
 707                 $this->output( "Migrating old restrictions to new table...\n" );
 708                 $task = $this->maintenance->runChild( 'UpdateRestrictions' );
 709                 $task->execute();
 710         }
 711
 712         protected function doCategorylinksIndicesUpdate() {
 713                 if ( !$this->indexHasField( 'categorylinks', 'cl_sortkey', 'cl_from' ) ) {
 714                         $this->applyPatch( 'patch-categorylinksindex.sql' );
 715                         $this->output( "...categorylinks indices updated\n" );
 716                 }
 717         }
 718
 719         protected function doCategoryPopulation() {
 720                 if ( $this->updateRowExists( 'populate category' ) ) {
 721                         $this->output( "...category table already populated.\n" );
 722                         return;
 723                 }
 724
 725                 $this->output(
 726                         "Populating category table, printing progress markers. " .
 727                         "For large databases, you\n" .
 728                         "may want to hit Ctrl-C and do this manually with maintenance/\n" .
 729                         "populateCategory.php.\n"
 730                 );
 731                 $task = $this->maintenance->runChild( 'PopulateCategory' );
 732                 $task->execute();
 733                 $this->output( "Done populating category table.\n" );
 734         }
 735
 736         protected function doPopulateParentId() {
 737                 if ( $this->updateRowExists( 'populate rev_parent_id' ) ) {
 738                         $this->output( "...rev_parent_id column already populated.\n" );
 739                         return;
 740                 }
 741
 742                 $task = $this->maintenance->runChild( 'PopulateParentId' );
 743                 $task->execute();
 744         }
 745
 746         protected function doMaybeProfilingMemoryUpdate() {
 747                 if ( !$this->db->tableExists( 'profiling' ) ) {
 748                         // Simply ignore
 749                 } elseif ( $this->db->fieldExists( 'profiling', 'pf_memory' ) ) {
 750                         $this->output( "...profiling table has pf_memory field.\n" );
 751                 } else {
 752                         $this->output( "Adding pf_memory field to table profiling..." );
 753                         $this->applyPatch( 'patch-profiling-memory.sql' );
 754                         $this->output( "done.\n" );
 755                 }
 756         }
 757
 758         protected function doFilearchiveIndicesUpdate() {
 759                 $info = $this->db->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
 760                 if ( !$info ) {
 761                         $this->output( "Updating filearchive indices..." );
 762                         $this->applyPatch( 'patch-filearchive-user-index.sql' );
 763                         $this->output( "done.\n" );
 764                 }
 765         }
 766
 767         protected function doUniquePlTlIl() {
 768                 $info = $this->db->indexInfo( 'pagelinks', 'pl_namespace' );
 769                 if ( is_array( $info ) && !$info[0]->Non_unique ) {
 770                         $this->output( "...pl_namespace, tl_namespace, il_to indices are already UNIQUE.\n" );
 771                         return;
 772                 }
 773
 774                 $this->output( "Making pl_namespace, tl_namespace and il_to indices UNIQUE... " );
 775                 $this->applyPatch( 'patch-pl-tl-il-unique.sql' );
 776                 $this->output( "done.\n" );
 777         }
 778
 779         protected function renameEuWikiId() {
 780                 if ( $this->db->fieldExists( 'external_user', 'eu_local_id' ) ) {
 781                         $this->output( "...eu_wiki_id already renamed to eu_local_id.\n" );
 782                         return;
 783                 }
 784
 785                 $this->output( "Renaming eu_wiki_id -> eu_local_id... " );
 786                 $this->applyPatch( 'patch-eu_local_id.sql' );
 787                 $this->output( "done.\n" );
 788         }
 789
 790         protected function doUpdateMimeMinorField() {
 791                 if ( $this->updateRowExists( 'mime_minor_length' ) ) {
 792                         $this->output( "...*_mime_minor fields are already long enough.\n" );
 793                         return;
 794                 }
 795
 796                 $this->output( "Altering all *_mime_minor fields to 100 bytes in size ... " );
 797                 $this->applyPatch( 'patch-mime_minor_length.sql' );
 798                 $this->output( "done.\n" );
 799         }
 800
 801         protected function doPopulateRevLen() {
 802                 if ( $this->updateRowExists( 'populate rev_len' ) ) {
 803                         $this->output( "...rev_len column already populated.\n" );
 804                         return;
 805                 }
 806
 807                 $task = $this->maintenance->runChild( 'PopulateRevisionLength' );
 808                 $task->execute();
 809         }
 810
 811         protected function doClFieldsUpdate() {
 812                 if ( $this->updateRowExists( 'cl_fields_update' ) ) {
 813                         $this->output( "...categorylinks up-to-date.\n" );
 814                         return;
 815                 }
 816
 817                 $this->output( 'Updating categorylinks (again)...' );
 818                 $this->applyPatch( 'patch-categorylinks-better-collation2.sql' );
 819                 $this->output( "done.\n" );
 820         }
 821
 822         protected function doLangLinksLengthUpdate() {
 823                 $langlinks = $this->db->tableName( 'langlinks' );
 824                 $res = $this->db->query( "SHOW COLUMNS FROM $langlinks LIKE 'll_lang'" );
 825                 $row = $this->db->fetchObject( $res );
 826
 827                 if ( $row && $row->Type == "varbinary(10)" ) {
 828                         $this->output( 'Updating length of ll_lang in langlinks...' );
 829                         $this->applyPatch( 'patch-langlinks-ll_lang-20.sql' );
 830                         $this->output( "done.\n" );
 831                 } else {
 832                         $this->output( "...ll_lang is up-to-date.\n" );
 833                 }
 834         }
 835
 836         protected function doUserNewTalkTimestampNotNull() {
 837                 $info = $this->db->fieldInfo( 'user_newtalk', 'user_last_timestamp' );
 838                 if ( $info->isNullable() ) {
 839                         $this->output( "...user_last_timestamp is already nullable.\n" );
 840                         return;
 841                 }
 842
 843                 $this->output( "Making user_last_timestamp nullable... " );
 844                 $this->applyPatch( 'patch-user-newtalk-timestamp-null.sql' );
 845                 $this->output( "done.\n" );
 846         }
 847 }