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
 162                         // 1.17
 163                         array( 'addTable', 'iwlinks',                           'patch-iwlinks.sql' ),
 164                         array( 'addTable', 'user_former_groups',                'patch-user_former_groups.sql'),
 165                         array( 'addIndex', 'iwlinks', 'iwl_prefix_title_from',  'patch-rename-iwl_prefix.sql' ),
 166                         array( 'addField', 'updatelog',     'ul_value',         'patch-ul_value.sql' ),
 167                         array( 'addField', 'interwiki',     'iw_api',           'patch-iw_api_and_wikiid.sql' ),
 168                         array( 'dropIndex', 'iwlinks',      'iwl_prefix',       'patch-kill-iwl_prefix.sql' ),
 169                         array( 'dropIndex', 'iwlinks',      'iwl_prefix_from_title', 'patch-kill-iwl_pft.sql' ),
 170                         array( 'addField', 'categorylinks', 'cl_collation',     'patch-categorylinks-better-collation.sql' ),
 171                         array( 'doClFieldsUpdate' ),
 172                         array( 'doCollationUpdate' ),
 173                         array( 'addTable', 'msg_resource',                      'patch-msg_resource.sql' ),
 174                         array( 'addTable', 'module_deps',                       'patch-module_deps.sql' ),
 175                         array( 'dropIndex', 'archive',      'ar_page_revid',    'patch-archive_kill_ar_page_revid.sql' ),
 176                         array( 'addIndex', 'archive',       'ar_revid',         'patch-archive_ar_revid.sql' ),
 177                         array( 'doLangLinksLengthUpdate' ),
 178
 179                         // 1.18
 180                         array( 'doUserNewTalkTimestampNotNull' ),
 181                         array( 'addIndex', 'user',          'user_email',       'patch-user_email_index.sql' ),
 182                         array( 'modifyField', 'user_properties', 'up_property', 'patch-up_property.sql' ),
 183                         array( 'addTable', 'uploadstash',                       'patch-uploadstash.sql' ),
 184
 185                         // 1.19
 186                         array( 'addTable', 'config',                            'patch-config.sql' ),
 187                         array( 'addIndex', 'logging',       'type_action',      'patch-logging-type-action-index.sql'),
 188                 );
 189         }
 190
 191         /**
 192          * 1.4 betas were missing the 'binary' marker from logging.log_title,
 193          * which causes a collation mismatch error on joins in MySQL 4.1.
 194          *
 195          * @param $table String: table name
 196          * @param $field String: field name to check
 197          * @param $patchFile String: path to the patch to correct the field
 198          */
 199         protected function checkBin( $table, $field, $patchFile ) {
 200                 $tableName = $this->db->tableName( $table );
 201                 $res = $this->db->query( "SELECT $field FROM $tableName LIMIT 0", __METHOD__ );
 202                 $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
 203
 204                 if ( in_array( 'binary', $flags ) ) {
 205                         $this->output( "...$table table has correct $field encoding.\n" );
 206                 } else {
 207                         $this->output( "Fixing $field encoding on $table table... " );
 208                         $this->applyPatch( $patchFile );
 209                         $this->output( "done.\n" );
 210                 }
 211         }
 212
 213         /**
 214          * Check whether an index contain a field
 215          *
 216          * @param $table String: table name
 217          * @param $index String: index name to check
 218          * @param $field String: field that should be in the index
 219          * @return Boolean
 220          */
 221         protected function indexHasField( $table, $index, $field ) {
 222                 $info = $this->db->indexInfo( $table, $index, __METHOD__ );
 223                 if ( $info ) {
 224                         foreach ( $info as $row ) {
 225                                 if ( $row->Column_name == $field ) {
 226                                         $this->output( "...index $index on table $table includes field $field\n" );
 227                                         return true;
 228                                 }
 229                         }
 230                 }
 231                 $this->output( "...index $index on table $table has no field $field; adding\n" );
 232                 return false;
 233         }
 234
 235         /**
 236          * Check that interwiki table exists; if it doesn't source it
 237          */
 238         protected function doInterwikiUpdate() {
 239                 global $IP;
 240
 241                 if ( $this->db->tableExists( "interwiki" ) ) {
 242                         $this->output( "...already have interwiki table\n" );
 243                         return;
 244                 }
 245
 246                 $this->output( 'Creating interwiki table...' );
 247                 $this->applyPatch( 'patch-interwiki.sql' );
 248                 $this->output( "ok\n" );
 249                 $this->output( 'Adding default interwiki definitions...' );
 250                 $this->applyPatch( "$IP/maintenance/interwiki.sql", true );
 251                 $this->output( "done.\n" );
 252         }
 253
 254         /**
 255          * Check that proper indexes are in place
 256          */
 257         protected function doIndexUpdate() {
 258                 $meta = $this->db->fieldInfo( 'recentchanges', 'rc_timestamp' );
 259                 if ( $meta === false ) {
 260                         throw new MWException( 'Missing rc_timestamp field of recentchanges table. Should not happen.' );
 261                 }
 262                 if ( $meta->isMultipleKey() ) {
 263                         $this->output( "...indexes seem up to 20031107 standards\n" );
 264                         return;
 265                 }
 266
 267                 $this->output( "Updating indexes to 20031107..." );
 268                 $this->applyPatch( 'patch-indexes.sql', true );
 269                 $this->output( "done.\n" );
 270         }
 271
 272         protected function doOldLinksUpdate() {
 273                 $cl = $this->maintenance->runChild( 'ConvertLinks' );
 274                 $cl->execute();
 275         }
 276
 277         protected function doFixAncientImagelinks() {
 278                 $info = $this->db->fieldInfo( 'imagelinks', 'il_from' );
 279                 if ( !$info || $info->type() !== 'string' ) {
 280                         $this->output( "...il_from OK\n" );
 281                         return;
 282                 }
 283
 284                 $this->output( "Fixing ancient broken imagelinks table.\n" );
 285                 $this->output( "NOTE: you will have to run maintenance/refreshLinks.php after this.\n" );
 286                 $this->applyPatch( 'patch-fix-il_from.sql' );
 287                 $this->output( "done.\n" );
 288         }
 289
 290         /**
 291          * Check if we need to add talk page rows to the watchlist
 292          */
 293         function doWatchlistUpdate() {
 294                 $talk = $this->db->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', __METHOD__ );
 295                 $nontalk = $this->db->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', __METHOD__ );
 296                 if ( $talk == $nontalk ) {
 297                         $this->output( "...watchlist talk page rows already present\n" );
 298                         return;
 299                 }
 300
 301                 $this->output( "Adding missing watchlist talk page rows... " );
 302                 $this->db->insertSelect( 'watchlist', 'watchlist',
 303                         array(
 304                                 'wl_user' => 'wl_user',
 305                                 'wl_namespace' => 'wl_namespace | 1',
 306                                 'wl_title' => 'wl_title',
 307                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 308                         ), array( 'NOT (wl_namespace & 1)' ), __METHOD__, 'IGNORE' );
 309                 $this->output( "done.\n" );
 310         }
 311
 312         function doSchemaRestructuring() {
 313                 if ( $this->db->tableExists( 'page' ) ) {
 314                         $this->output( "...page table already exists.\n" );
 315                         return;
 316                 }
 317
 318                 $this->output( "...converting from cur/old to page/revision/text DB structure.\n" );
 319                 $this->output( wfTimestamp( TS_DB ) );
 320                 $this->output( "......checking for duplicate entries.\n" );
 321
 322                 list ( $cur, $old, $page, $revision, $text ) = $this->db->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 323
 324                 $rows = $this->db->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 325                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", __METHOD__ );
 326
 327                 if ( $rows->numRows() > 0 ) {
 328                         $this->output( wfTimestamp( TS_DB ) );
 329                         $this->output( "......<b>Found duplicate entries</b>\n" );
 330                         $this->output( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 331                         $duplicate = array();
 332                         foreach ( $rows as $row ) {
 333                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 334                                         $duplicate[$row->cur_namespace] = array();
 335                                 }
 336                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 337                                 $this->output( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 338                         }
 339                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 340                         $firstCond = true;
 341                         foreach ( $duplicate as $ns => $titles ) {
 342                                 if ( $firstCond ) {
 343                                         $firstCond = false;
 344                                 } else {
 345                                         $sql .= ' OR ';
 346                                 }
 347                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 348                                 $first = true;
 349                                 foreach ( $titles as $t ) {
 350                                         if ( $first ) {
 351                                                 $sql .= $this->db->addQuotes( $t );
 352                                                 $first = false;
 353                                         } else {
 354                                                 $sql .= ', ' . $this->db->addQuotes( $t );
 355                                         }
 356                                 }
 357                                 $sql .= ") ) \n";
 358                         }
 359                         # By sorting descending, the most recent entry will be the first in the list.
 360                         # All following entries will be deleted by the next while-loop.
 361                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 362
 363                         $rows = $this->db->query( $sql, __METHOD__ );
 364
 365                         $prev_title = $prev_namespace = false;
 366                         $deleteId = array();
 367
 368                         foreach ( $rows as $row ) {
 369                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 370                                         $deleteId[] = $row->cur_id;
 371                                 }
 372                                 $prev_title     = $row->cur_title;
 373                                 $prev_namespace = $row->cur_namespace;
 374                         }
 375                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 376                         $this->db->query( $sql, __METHOD__ );
 377                         $this->output( wfTimestamp( TS_DB ) );
 378                         $this->output( "......<b>Deleted</b> " . $this->db->affectedRows() . " records.\n" );
 379                 }
 380
 381                 $this->output( wfTimestamp( TS_DB ) );
 382                 $this->output( "......Creating tables.\n" );
 383                 $this->db->query( "CREATE TABLE $page (
 384                         page_id int(8) unsigned NOT NULL auto_increment,
 385                         page_namespace int NOT NULL,
 386                         page_title varchar(255) binary NOT NULL,
 387                         page_restrictions tinyblob NOT NULL,
 388                         page_counter bigint(20) unsigned NOT NULL default '0',
 389                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 390                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 391                         page_random real unsigned NOT NULL,
 392                         page_touched char(14) binary NOT NULL default '',
 393                         page_latest int(8) unsigned NOT NULL,
 394                         page_len int(8) unsigned NOT NULL,
 395
 396                         PRIMARY KEY page_id (page_id),
 397                         UNIQUE INDEX name_title (page_namespace,page_title),
 398                         INDEX (page_random),
 399                         INDEX (page_len)
 400                         ) ENGINE=InnoDB", __METHOD__ );
 401                 $this->db->query( "CREATE TABLE $revision (
 402                         rev_id int(8) unsigned NOT NULL auto_increment,
 403                         rev_page int(8) unsigned NOT NULL,
 404                         rev_comment tinyblob NOT NULL,
 405                         rev_user int(5) unsigned NOT NULL default '0',
 406                         rev_user_text varchar(255) binary NOT NULL default '',
 407                         rev_timestamp char(14) binary NOT NULL default '',
 408                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 409                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 410                         rev_len int(8) unsigned,
 411                         rev_parent_id int(8) unsigned default NULL,
 412                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 413                         UNIQUE INDEX rev_id (rev_id),
 414                         INDEX rev_timestamp (rev_timestamp),
 415                         INDEX page_timestamp (rev_page,rev_timestamp),
 416                         INDEX user_timestamp (rev_user,rev_timestamp),
 417                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 418                         ) ENGINE=InnoDB", __METHOD__ );
 419
 420                 $this->output( wfTimestamp( TS_DB ) );
 421                 $this->output( "......Locking tables.\n" );
 422                 $this->db->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", __METHOD__ );
 423
 424                 $maxold = intval( $this->db->selectField( 'old', 'max(old_id)', '', __METHOD__ ) );
 425                 $this->output( wfTimestamp( TS_DB ) );
 426                 $this->output( "......maxold is {$maxold}\n" );
 427
 428                 $this->output( wfTimestamp( TS_DB ) );
 429                 global $wgLegacySchemaConversion;
 430                 if ( $wgLegacySchemaConversion ) {
 431                         // Create HistoryBlobCurStub entries.
 432                         // Text will be pulled from the leftover 'cur' table at runtime.
 433                         $this->output( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 434                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 435                         $cur_flags = "'object'";
 436                 } else {
 437                         // Copy all cur text in immediately: this may take longer but avoids
 438                         // having to keep an extra table around.
 439                         $this->output( "......Moving text from cur.\n" );
 440                         $cur_text = 'cur_text';
 441                         $cur_flags = "''";
 442                 }
 443                 $this->db->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 444                                         old_timestamp, old_minor_edit, old_flags)
 445                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 446                         FROM $cur", __METHOD__ );
 447
 448                 $this->output( wfTimestamp( TS_DB ) );
 449                 $this->output( "......Setting up revision table.\n" );
 450                 $this->db->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 451                                 rev_minor_edit)
 452                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 453                                 old_timestamp, old_minor_edit
 454                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", __METHOD__ );
 455
 456                 $this->output( wfTimestamp( TS_DB ) );
 457                 $this->output( "......Setting up page table.\n" );
 458                 $this->db->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 459                         page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 460                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 461                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 462                         FROM $cur,$revision
 463                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", __METHOD__ );
 464
 465                 $this->output( wfTimestamp( TS_DB ) );
 466                 $this->output( "......Unlocking tables.\n" );
 467                 $this->db->query( "UNLOCK TABLES", __METHOD__ );
 468
 469                 $this->output( wfTimestamp( TS_DB ) );
 470                 $this->output( "......Renaming old.\n" );
 471                 $this->db->query( "ALTER TABLE $old RENAME TO $text", __METHOD__ );
 472
 473                 $this->output( wfTimestamp( TS_DB ) );
 474                 $this->output( "...done.\n" );
 475         }
 476
 477         protected function doNamespaceSize() {
 478                 $tables = array(
 479                         'page'          => 'page',
 480                         'archive'       => 'ar',
 481                         'recentchanges' => 'rc',
 482                         'watchlist'     => 'wl',
 483                         'querycache'    => 'qc',
 484                         'logging'       => 'log',
 485                 );
 486                 foreach ( $tables as $table => $prefix ) {
 487                         $field = $prefix . '_namespace';
 488
 489                         $tablename = $this->db->tableName( $table );
 490                         $result = $this->db->query( "SHOW COLUMNS FROM $tablename LIKE '$field'", __METHOD__ );
 491                         $info = $this->db->fetchObject( $result );
 492
 493                         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 494                                 $this->output( "...$field is already a full int ($info->Type).\n" );
 495                         } else {
 496                                 $this->output( "Promoting $field from $info->Type to int... " );
 497                                 $this->db->query( "ALTER TABLE $tablename MODIFY $field int NOT NULL", __METHOD__ );
 498                                 $this->output( "done.\n" );
 499                         }
 500                 }
 501         }
 502
 503         protected function doPagelinksUpdate() {
 504                 if ( $this->db->tableExists( 'pagelinks' ) ) {
 505                         $this->output( "...already have pagelinks table.\n" );
 506                         return;
 507                 }
 508
 509                 $this->output( "Converting links and brokenlinks tables to pagelinks... " );
 510                 $this->applyPatch( 'patch-pagelinks.sql' );
 511                 $this->output( "done.\n" );
 512
 513                 global $wgContLang;
 514                 foreach ( MWNamespace::getCanonicalNamespaces() as $ns => $name ) {
 515                         if ( $ns == 0 ) {
 516                                 continue;
 517                         }
 518
 519                         $this->output( "Cleaning up broken links for namespace $ns... " );
 520
 521                         $pagelinks = $this->db->tableName( 'pagelinks' );
 522                         $name = $wgContLang->getNsText( $ns );
 523                         $prefix = $this->db->strencode( $name );
 524                         $likeprefix = str_replace( '_', '\\_', $prefix );
 525
 526                         $sql = "UPDATE $pagelinks
 527                                            SET pl_namespace=$ns,
 528                                                    pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 529                                          WHERE pl_namespace=0
 530                                            AND pl_title LIKE '$likeprefix:%'";
 531
 532                         $this->db->query( $sql, __METHOD__ );
 533                         $this->output( "done.\n" );
 534                 }
 535         }
 536
 537         protected function doUserUniqueUpdate() {
 538                 $duper = new UserDupes( $this->db, array( $this, 'output' ) );
 539                 if ( $duper->hasUniqueIndex() ) {
 540                         $this->output( "...already have unique user_name index.\n" );
 541                         return;
 542                 }
 543
 544                 if ( !$duper->clearDupes() ) {
 545                         $this->output( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 546                 }
 547                 $this->output( "Adding unique index on user_name... " );
 548                 $this->applyPatch( 'patch-user_nameindex.sql' );
 549                 $this->output( "done.\n" );
 550         }
 551
 552         protected function doUserGroupsUpdate() {
 553                 if ( $this->db->tableExists( 'user_groups' ) ) {
 554                         $info = $this->db->fieldInfo( 'user_groups', 'ug_group' );
 555                         if ( $info->type() == 'int' ) {
 556                                 $oldug = $this->db->tableName( 'user_groups' );
 557                                 $newug = $this->db->tableName( 'user_groups_bogus' );
 558                                 $this->output( "user_groups table exists but is in bogus intermediate format. Renaming to $newug... " );
 559                                 $this->db->query( "ALTER TABLE $oldug RENAME TO $newug", __METHOD__ );
 560                                 $this->output( "ok\n" );
 561
 562                                 $this->output( "Re-adding fresh user_groups table... " );
 563                                 $this->applyPatch( 'patch-user_groups.sql' );
 564                                 $this->output( "ok\n" );
 565
 566                                 $this->output( "***\n" );
 567                                 $this->output( "*** WARNING: You will need to manually fix up user permissions in the user_groups\n" );
 568                                 $this->output( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 569                                 $this->output( "***\n" );
 570                         } else {
 571                                 $this->output( "...user_groups table exists and is in current format.\n" );
 572                         }
 573                         return;
 574                 }
 575
 576                 $this->output( "Adding user_groups table... " );
 577                 $this->applyPatch( 'patch-user_groups.sql' );
 578                 $this->output( "ok\n" );
 579
 580                 if ( !$this->db->tableExists( 'user_rights' ) ) {
 581                         if ( $this->db->fieldExists( 'user', 'user_rights' ) ) {
 582                                 $this->output( "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion..." );
 583                                 $this->db->applyPatch( 'patch-user_rights.sql' );
 584                                 $this->output( "ok\n" );
 585                         } else {
 586                                 $this->output( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 587                                 $this->output( "*** You may need to manually configure some sysops by manipulating\n" );
 588                                 $this->output( "*** the user_groups table.\n" );
 589                                 return;
 590                         }
 591                 }
 592
 593                 $this->output( "Converting user_rights table to user_groups... " );
 594                 $result = $this->db->select( 'user_rights',
 595                         array( 'ur_user', 'ur_rights' ),
 596                         array( "ur_rights != ''" ),
 597                         __METHOD__ );
 598
 599                 foreach ( $result as $row ) {
 600                         $groups = array_unique(
 601                                 array_map( 'trim',
 602                                         explode( ',', $row->ur_rights ) ) );
 603
 604                         foreach ( $groups as $group ) {
 605                                 $this->db->insert( 'user_groups',
 606                                         array(
 607                                                 'ug_user'  => $row->ur_user,
 608                                                 'ug_group' => $group ),
 609                                         __METHOD__ );
 610                         }
 611                 }
 612                 $this->output( "done.\n" );
 613         }
 614
 615         /**
 616          * Make sure wl_notificationtimestamp can be NULL,
 617          * and update old broken items.
 618          */
 619         protected function doWatchlistNull() {
 620                 $info = $this->db->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 621                 if ( $info->isNullable() ) {
 622                         $this->output( "...wl_notificationtimestamp is already nullable.\n" );
 623                         return;
 624                 }
 625
 626                 $this->output( "Making wl_notificationtimestamp nullable... " );
 627                 $this->applyPatch( 'patch-watchlist-null.sql' );
 628                 $this->output( "done.\n" );
 629         }
 630
 631         /**
 632          * Set page_random field to a random value where it is equals to 0.
 633          *
 634          * @see bug 3946
 635          */
 636         protected function doPageRandomUpdate() {
 637                 $page = $this->db->tableName( 'page' );
 638                 $this->db->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", __METHOD__ );
 639                 $rows = $this->db->affectedRows();
 640
 641                 if( $rows ) {
 642                         $this->output( "Set page_random to a random value on $rows rows where it was set to 0\n" );
 643                 } else {
 644                         $this->output( "...no page_random rows needed to be set\n" );
 645                 }
 646         }
 647
 648         protected function doTemplatelinksUpdate() {
 649                 if ( $this->db->tableExists( 'templatelinks' ) ) {
 650                         $this->output( "...templatelinks table already exists\n" );
 651                         return;
 652                 }
 653
 654                 $this->output( "Creating templatelinks table...\n" );
 655                 $this->applyPatch( 'patch-templatelinks.sql' );
 656                 $this->output( "Populating...\n" );
 657                 if ( wfGetLB()->getServerCount() > 1 ) {
 658                         // Slow, replication-friendly update
 659                         $res = $this->db->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 660                                 array( 'pl_namespace' => NS_TEMPLATE ), __METHOD__ );
 661                         $count = 0;
 662                         foreach ( $res as $row ) {
 663                                 $count = ( $count + 1 ) % 100;
 664                                 if ( $count == 0 ) {
 665                                         wfWaitForSlaves();
 666                                 }
 667                                 $this->db->insert( 'templatelinks',
 668                                         array(
 669                                                 'tl_from' => $row->pl_from,
 670                                                 'tl_namespace' => $row->pl_namespace,
 671                                                 'tl_title' => $row->pl_title,
 672                                         ), __METHOD__
 673                                 );
 674
 675                         }
 676                 } else {
 677                         // Fast update
 678                         $this->db->insertSelect( 'templatelinks', 'pagelinks',
 679                                 array(
 680                                         'tl_from' => 'pl_from',
 681                                         'tl_namespace' => 'pl_namespace',
 682                                         'tl_title' => 'pl_title'
 683                                 ), array(
 684                                         'pl_namespace' => 10
 685                                 ), __METHOD__
 686                         );
 687                 }
 688                 $this->output( "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n" );
 689         }
 690
 691         protected function doBacklinkingIndicesUpdate() {
 692                 if ( !$this->indexHasField( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
 693                         !$this->indexHasField( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
 694                         !$this->indexHasField( 'imagelinks', 'il_to', 'il_from' ) )
 695                 {
 696                         $this->applyPatch( 'patch-backlinkindexes.sql' );
 697                         $this->output( "...backlinking indices updated\n" );
 698                 }
 699         }
 700
 701         /**
 702          * Adding page_restrictions table, obsoleting page.page_restrictions.
 703          * Migrating old restrictions to new table
 704          * -- Andrew Garrett, January 2007.
 705          */
 706         protected function doRestrictionsUpdate() {
 707                 if ( $this->db->tableExists( 'page_restrictions' ) ) {
 708                         $this->output( "...page_restrictions table already exists.\n" );
 709                         return;
 710                 }
 711
 712                 $this->output( "Creating page_restrictions table..." );
 713                 $this->applyPatch( 'patch-page_restrictions.sql' );
 714                 $this->applyPatch( 'patch-page_restrictions_sortkey.sql' );
 715                 $this->output( "done.\n" );
 716
 717                 $this->output( "Migrating old restrictions to new table...\n" );
 718                 $task = $this->maintenance->runChild( 'UpdateRestrictions' );
 719                 $task->execute();
 720         }
 721
 722         protected function doCategorylinksIndicesUpdate() {
 723                 if ( !$this->indexHasField( 'categorylinks', 'cl_sortkey', 'cl_from' ) ) {
 724                         $this->applyPatch( 'patch-categorylinksindex.sql' );
 725                         $this->output( "...categorylinks indices updated\n" );
 726                 }
 727         }
 728
 729         protected function doCategoryPopulation() {
 730                 if ( $this->updateRowExists( 'populate category' ) ) {
 731                         $this->output( "...category table already populated.\n" );
 732                         return;
 733                 }
 734
 735                 $this->output(
 736                         "Populating category table, printing progress markers. " .
 737                         "For large databases, you\n" .
 738                         "may want to hit Ctrl-C and do this manually with maintenance/\n" .
 739                         "populateCategory.php.\n"
 740                 );
 741                 $task = $this->maintenance->runChild( 'PopulateCategory' );
 742                 $task->execute();
 743                 $this->output( "Done populating category table.\n" );
 744         }
 745
 746         protected function doPopulateParentId() {
 747                 if ( $this->updateRowExists( 'populate rev_parent_id' ) ) {
 748                         $this->output( "...rev_parent_id column already populated.\n" );
 749                         return;
 750                 }
 751
 752                 $task = $this->maintenance->runChild( 'PopulateParentId' );
 753                 $task->execute();
 754         }
 755
 756         protected function doMaybeProfilingMemoryUpdate() {
 757                 if ( !$this->db->tableExists( 'profiling' ) ) {
 758                         // Simply ignore
 759                 } elseif ( $this->db->fieldExists( 'profiling', 'pf_memory' ) ) {
 760                         $this->output( "...profiling table has pf_memory field.\n" );
 761                 } else {
 762                         $this->output( "Adding pf_memory field to table profiling..." );
 763                         $this->applyPatch( 'patch-profiling-memory.sql' );
 764                         $this->output( "done.\n" );
 765                 }
 766         }
 767
 768         protected function doFilearchiveIndicesUpdate() {
 769                 $info = $this->db->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
 770                 if ( !$info ) {
 771                         $this->output( "Updating filearchive indices..." );
 772                         $this->applyPatch( 'patch-filearchive-user-index.sql' );
 773                         $this->output( "done.\n" );
 774                 }
 775         }
 776
 777         protected function doUniquePlTlIl() {
 778                 $info = $this->db->indexInfo( 'pagelinks', 'pl_namespace' );
 779                 if ( is_array( $info ) && !$info[0]->Non_unique ) {
 780                         $this->output( "...pl_namespace, tl_namespace, il_to indices are already UNIQUE.\n" );
 781                         return;
 782                 }
 783
 784                 $this->output( "Making pl_namespace, tl_namespace and il_to indices UNIQUE... " );
 785                 $this->applyPatch( 'patch-pl-tl-il-unique.sql' );
 786                 $this->output( "done.\n" );
 787         }
 788
 789         protected function renameEuWikiId() {
 790                 if ( $this->db->fieldExists( 'external_user', 'eu_local_id' ) ) {
 791                         $this->output( "...eu_wiki_id already renamed to eu_local_id.\n" );
 792                         return;
 793                 }
 794
 795                 $this->output( "Renaming eu_wiki_id -> eu_local_id... " );
 796                 $this->applyPatch( 'patch-eu_local_id.sql' );
 797                 $this->output( "done.\n" );
 798         }
 799
 800         protected function doUpdateMimeMinorField() {
 801                 if ( $this->updateRowExists( 'mime_minor_length' ) ) {
 802                         $this->output( "...*_mime_minor fields are already long enough.\n" );
 803                         return;
 804                 }
 805
 806                 $this->output( "Altering all *_mime_minor fields to 100 bytes in size ... " );
 807                 $this->applyPatch( 'patch-mime_minor_length.sql' );
 808                 $this->output( "done.\n" );
 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 }