maintenance/updaters.inc

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup Maintenance
   5  */
   6
   7 if ( !defined( 'MEDIAWIKI' ) ) {
   8         echo "This file is not a valid entry point\n";
   9         exit( 1 );
  10 }
  11
  12 require_once 'convertLinks.inc';
  13 require_once 'userDupes.inc';
  14 require_once 'deleteDefaultMessages.php';
  15 # Extension updates
  16 require_once( "$IP/includes/Hooks.php" );
  17
  18 /**
  19  * List of update functions to call on a MySQL-based MediaWiki installation,
  20  * in sequence. First item is function name, rest are parameters to pass.
  21  */
  22 $wgMysqlUpdates = array(
  23         // 1.2
  24         // update_passwords obsolete
  25         array( 'add_field', 'ipblocks',      'ipb_id',           'patch-ipblocks.sql' ),
  26         array( 'add_field', 'ipblocks',      'ipb_expiry',       'patch-ipb_expiry.sql' ),
  27         array( 'do_interwiki_update' ),
  28         array( 'do_index_update' ),
  29         // do_linkscc_update obsolete
  30         array( 'add_table', 'hitcounter',                        'patch-hitcounter.sql' ),
  31         array( 'add_field', 'recentchanges', 'rc_type',          'patch-rc_type.sql' ),
  32
  33         // 1.3
  34         array( 'add_field', 'user',          'user_real_name',   'patch-user-realname.sql' ),
  35         array( 'add_table', 'querycache',                        'patch-querycache.sql' ),
  36         array( 'add_table', 'objectcache',                       'patch-objectcache.sql' ),
  37         array( 'add_table', 'categorylinks',                     'patch-categorylinks.sql' ),
  38         // do_linkscc_1_3_update obsolete
  39         array( 'do_old_links_update' ),
  40         array( 'add_field', 'recentchanges', 'rc_ip',            'patch-rc_ip.sql' ),
  41
  42         // 1.4
  43         array( 'do_image_name_unique_update' ),
  44         array( 'add_field', 'recentchanges', 'rc_id',            'patch-rc_id.sql' ),
  45         array( 'add_field', 'recentchanges', 'rc_patrolled',     'patch-rc-patrol.sql' ),
  46         array( 'add_table', 'logging',                           'patch-logging.sql' ),
  47         // do_user_rights_update obsolete
  48         array( 'add_field', 'user',          'user_token',       'patch-user_token.sql' ),
  49         // old, old_articleid, patch-remove-old-title-namespace.sql obsolete
  50         // user_groups, patch-userlevels.sql obsolete
  51         // do_group_update() obsolete
  52         array( 'do_watchlist_update' ),
  53         array( 'do_user_update' ),
  54         // do_copy_newtalk_to_watchlist obsolete
  55
  56         // 1.5
  57         array( 'do_schema_restructuring' ),
  58         array( 'add_field', 'logging',       'log_params',       'patch-log_params.sql' ),
  59         array( 'check_bin', 'logging',       'log_title',        'patch-logging-title.sql', ),
  60         array( 'add_field', 'archive',       'ar_rev_id',        'patch-archive-rev_id.sql' ),
  61         array( 'add_field', 'page',          'page_len',         'patch-page_len.sql' ),
  62         array( 'do_inverse_timestamp' ),
  63         array( 'do_text_id' ),
  64         array( 'add_field', 'revision',      'rev_deleted',      'patch-rev_deleted.sql' ),
  65         array( 'add_field', 'image',         'img_width',        'patch-img_width.sql' ),
  66         array( 'add_field', 'image',         'img_metadata',     'patch-img_metadata.sql' ),
  67         array( 'add_field', 'user',          'user_email_token', 'patch-user_email_token.sql' ),
  68         array( 'add_field', 'archive',       'ar_text_id',       'patch-archive-text_id.sql' ),
  69         array( 'do_namespace_size' ),
  70         array( 'add_field', 'image',         'img_media_type',   'patch-img_media_type.sql' ),
  71         array( 'do_pagelinks_update' ),
  72         array( 'do_drop_img_type' ),
  73         array( 'do_user_unique_update' ),
  74         array( 'do_user_groups_update' ),
  75         array( 'add_field', 'site_stats',    'ss_total_pages',   'patch-ss_total_articles.sql' ),
  76         array( 'add_table', 'user_newtalk',                      'patch-usernewtalk2.sql' ),
  77         array( 'add_table', 'transcache',                        'patch-transcache.sql' ),
  78         array( 'add_field', 'interwiki',     'iw_trans',         'patch-interwiki-trans.sql' ),
  79         array( 'add_table', 'trackbacks',                        'patch-trackbacks.sql' ),
  80
  81         // 1.6
  82         array( 'do_watchlist_null' ),
  83         // do_image_index_update obsolete
  84         array( 'do_logging_timestamp_index' ),
  85         array( 'add_field', 'ipblocks',        'ipb_range_start',  'patch-ipb_range_start.sql' ),
  86         array( 'do_page_random_update' ),
  87         array( 'add_field', 'user',            'user_registration','patch-user_registration.sql' ),
  88         array( 'do_templatelinks_update' ),
  89         array( 'add_table', 'externallinks',                       'patch-externallinks.sql' ),
  90         array( 'add_table', 'job',                                 'patch-job.sql' ),
  91         array( 'add_field', 'site_stats',      'ss_images',        'patch-ss_images.sql' ),
  92         array( 'add_table', 'langlinks',                           'patch-langlinks.sql' ),
  93         array( 'add_table', 'querycache_info',                     'patch-querycacheinfo.sql' ),
  94         array( 'add_table', 'filearchive',                         'patch-filearchive.sql' ),
  95         array( 'add_field', 'ipblocks',        'ipb_anon_only',    'patch-ipb_anon_only.sql' ),
  96         array( 'do_rc_indices_update' ),
  97
  98         // 1.9
  99         array( 'add_field', 'user',          'user_newpass_time', 'patch-user_newpass_time.sql' ),
 100         array( 'add_table', 'redirect',                           'patch-redirect.sql' ),
 101         array( 'add_table', 'querycachetwo', 'patch-querycachetwo.sql' ),
 102         array( 'add_field', 'ipblocks',      'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ),
 103         array( 'do_backlinking_indices_update' ),
 104         array( 'add_field', 'recentchanges', 'rc_old_len',        'patch-rc_len.sql' ),
 105         array( 'add_field', 'user',          'user_editcount',    'patch-user_editcount.sql' ),
 106
 107         // 1.10
 108         array( 'do_restrictions_update' ),
 109         array( 'add_field', 'logging',       'log_id',           'patch-log_id.sql' ),
 110         array( 'add_field', 'revision',      'rev_parent_id',    'patch-rev_parent_id.sql' ),
 111         array( 'add_field', 'page_restrictions', 'pr_id',        'patch-page_restrictions_sortkey.sql' ),
 112         array( 'add_field', 'revision',      'rev_len',          'patch-rev_len.sql' ),
 113         array( 'add_field', 'recentchanges', 'rc_deleted',       'patch-rc_deleted.sql' ),
 114         array( 'add_field', 'logging',       'log_deleted',      'patch-log_deleted.sql' ),
 115         array( 'add_field', 'archive',       'ar_deleted',       'patch-ar_deleted.sql' ),
 116         array( 'add_field', 'ipblocks',      'ipb_deleted',      'patch-ipb_deleted.sql' ),
 117         array( 'add_field', 'filearchive',   'fa_deleted',       'patch-fa_deleted.sql' ),
 118         array( 'add_field', 'archive',       'ar_len',           'patch-ar_len.sql' ),
 119
 120         // 1.11
 121         array( 'add_field', 'ipblocks',      'ipb_block_email',  'patch-ipb_emailban.sql' ),
 122         array( 'do_categorylinks_indices_update' ),
 123         array( 'add_field', 'oldimage',      'oi_metadata',      'patch-oi_metadata.sql'),
 124         array( 'do_archive_user_index' ),
 125         array( 'do_image_user_index' ),
 126         array( 'do_oldimage_user_index' ),
 127         array( 'add_field', 'archive',       'ar_page_id',       'patch-archive-page_id.sql'),
 128         array( 'add_field', 'image',         'img_sha1',         'patch-img_sha1.sql' ),
 129
 130         // 1.12
 131         array( 'add_table', 'protected_titles',                  'patch-protected_titles.sql' ),
 132
 133         // 1.13
 134         array( 'add_field', 'ipblocks',      'ipb_by_text',      'patch-ipb_by_text.sql' ),
 135         array( 'add_table', 'page_props',                        'patch-page_props.sql' ),
 136         array( 'add_table', 'updatelog',                         'patch-updatelog.sql' ),
 137         array( 'add_table', 'category',                          'patch-category.sql' ),
 138         array( 'do_category_population' ),
 139         array( 'add_field', 'archive',       'ar_parent_id',     'patch-ar_parent_id.sql'),
 140         array( 'add_field', 'user_newtalk',  'user_last_timestamp', 'patch-user_last_timestamp.sql'),
 141         array( 'do_populate_parent_id' ),
 142         array( 'check_bin', 'protected_titles', 'pt_title',      'patch-pt_title-encoding.sql', ),
 143         array( 'maybe_do_profiling_memory_update' ),
 144         array( 'do_filearchive_indices_update' ),
 145         array( 'update_password_format' ),
 146 );
 147
 148
 149 # For extensions only, should be populated via hooks
 150 # $wgDBtype should be checked to specifiy the proper file
 151 $wgExtNewTables = array(); // table, dir
 152 $wgExtNewFields = array(); // table, column, dir
 153 $wgExtPGNewFields = array(); // table, column attributes; for PostgreSQL
 154 $wgExtNewIndexes = array(); // table, index, dir
 155
 156 # Helper function: check if the given key is present in the updatelog table.
 157 # Obviously, only use this for updates that occur after the updatelog table was
 158 # created!
 159 function update_row_exists( $key ) {
 160         $dbr = wfGetDB( DB_SLAVE );
 161         $row = $dbr->selectRow(
 162                 'updatelog',
 163                 '1',
 164                 array( 'ul_key' => $key ),
 165                 __FUNCTION__
 166         );
 167         return (bool)$row;
 168 }
 169
 170 function rename_table( $from, $to, $patch ) {
 171         global $wgDatabase;
 172         if ( $wgDatabase->tableExists( $from ) ) {
 173                 if ( $wgDatabase->tableExists( $to ) ) {
 174                         echo "...can't move table $from to $to, $to already exists.\n";
 175                 } else {
 176                         echo "Moving table $from to $to...";
 177                         dbsource( archive($patch), $wgDatabase );
 178                         echo "ok\n";
 179                 }
 180         } else {
 181                 // Source table does not exist
 182                 // Renames are done before creations, so this is typical for a new installation
 183                 // Ignore silently
 184         }
 185 }
 186
 187 function add_table( $name, $patch, $fullpath=false ) {
 188         global $wgDatabase;
 189         if ( $wgDatabase->tableExists( $name ) ) {
 190                 echo "...$name table already exists.\n";
 191         } else {
 192                 echo "Creating $name table...";
 193                 if( $fullpath ) {
 194                         dbsource( $patch, $wgDatabase );
 195                 } else {
 196                         dbsource( archive($patch), $wgDatabase );
 197                 }
 198                 echo "ok\n";
 199         }
 200 }
 201
 202 function add_field( $table, $field, $patch, $fullpath=false ) {
 203         global $wgDatabase;
 204         if ( !$wgDatabase->tableExists( $table ) ) {
 205                 echo "...$table table does not exist, skipping new field patch\n";
 206         } elseif ( $wgDatabase->fieldExists( $table, $field ) ) {
 207                 echo "...have $field field in $table table.\n";
 208         } else {
 209                 echo "Adding $field field to table $table...";
 210                 if( $fullpath ) {
 211                         dbsource( $patch, $wgDatabase );
 212                 } else {
 213                         dbsource( archive($patch), $wgDatabase );
 214                 }
 215                 echo "ok\n";
 216         }
 217 }
 218
 219 function add_index( $table, $index, $patch, $fullpath=false ) {
 220         global $wgDatabase;
 221         if( $wgDatabase->indexExists( $table, $index ) ) {
 222                 echo "...$index key already set on $table table.\n";
 223         } else {
 224                 echo "Adding $index key to table $table... ";
 225                 if( $fullpath ) {
 226                         dbsource( $patch, $wgDatabase );
 227                 } else {
 228                         dbsource( archive($patch), $wgDatabase );
 229                 }
 230                 echo "ok\n";
 231         }
 232 }
 233
 234 function do_revision_updates() {
 235         global $wgSoftwareRevision;
 236         if ( $wgSoftwareRevision < 1001 ) {
 237                 update_passwords();
 238         }
 239 }
 240
 241 function update_passwords() {
 242         wfDebugDieBacktrace( "This function needs to be updated or removed.\n" );
 243
 244         global $wgDatabase;
 245         $fname = "Update script: update_passwords()";
 246         print "\nIt appears that you need to update the user passwords in your\n" .
 247           "database. If you have already done this (if you've run this update\n" .
 248           "script once before, for example), doing so again will make all your\n" .
 249           "user accounts inaccessible, so be sure you only do this once.\n" .
 250           "Update user passwords? (yes/no)";
 251
 252         $resp = readconsole();
 253     if ( ! ( "Y" == $resp{0} || "y" == $resp{0} ) ) { return; }
 254
 255         $sql = "SELECT user_id,user_password FROM user";
 256         $source = $wgDatabase->query( $sql, $fname );
 257
 258         while ( $row = $wgDatabase->fetchObject( $source ) ) {
 259                 $id = $row->user_id;
 260                 $oldpass = $row->user_password;
 261                 $newpass = md5( "{$id}-{$oldpass}" );
 262
 263                 $sql = "UPDATE user SET user_password='{$newpass}' " .
 264                   "WHERE user_id={$id}";
 265                 $wgDatabase->query( $sql, $fname );
 266         }
 267 }
 268
 269 function do_interwiki_update() {
 270         # Check that interwiki table exists; if it doesn't source it
 271         global $wgDatabase, $IP;
 272         if( $wgDatabase->tableExists( "interwiki" ) ) {
 273                 echo "...already have interwiki table\n";
 274                 return true;
 275         }
 276         echo "Creating interwiki table: ";
 277         dbsource( archive("patch-interwiki.sql") );
 278         echo "ok\n";
 279         echo "Adding default interwiki definitions: ";
 280         dbsource( "$IP/maintenance/interwiki.sql" );
 281         echo "ok\n";
 282 }
 283
 284 function do_index_update() {
 285         # Check that proper indexes are in place
 286         global $wgDatabase;
 287         $meta = $wgDatabase->fieldInfo( "recentchanges", "rc_timestamp" );
 288         if( !$meta->isMultipleKey() ) {
 289                 echo "Updating indexes to 20031107: ";
 290                 dbsource( archive("patch-indexes.sql") );
 291                 echo "ok\n";
 292                 return true;
 293         }
 294         echo "...indexes seem up to 20031107 standards\n";
 295         return false;
 296 }
 297
 298 function do_image_index_update() {
 299         global $wgDatabase;
 300
 301         $meta = $wgDatabase->fieldInfo( "image", "img_major_mime" );
 302         if( !$meta->isMultipleKey() ) {
 303                 echo "Updating indexes to 20050912: ";
 304                 dbsource( archive("patch-mimesearch-indexes.sql") );
 305                 echo "ok\n";
 306                 return true;
 307         }
 308         echo "...indexes seem up to 20050912 standards\n";
 309         return false;
 310 }
 311
 312 function do_image_name_unique_update() {
 313         global $wgDatabase;
 314         if( $wgDatabase->indexExists( 'image', 'PRIMARY' ) ) {
 315                 echo "...image primary key already set.\n";
 316         } else {
 317                 echo "Making img_name the primary key... ";
 318                 dbsource( archive("patch-image_name_primary.sql"), $wgDatabase );
 319                 echo "ok\n";
 320         }
 321 }
 322
 323 function do_logging_timestamp_index() {
 324         global $wgDatabase;
 325         if( $wgDatabase->indexExists( 'logging', 'times' ) ) {
 326                 echo "...timestamp key on logging already exists.\n";
 327         } else {
 328                 echo "Adding timestamp key on logging table... ";
 329                 dbsource( archive("patch-logging-times-index.sql"), $wgDatabase );
 330                 echo "ok\n";
 331         }
 332 }
 333
 334 function do_archive_user_index() {
 335         global $wgDatabase;
 336         if( $wgDatabase->indexExists( 'archive', 'usertext_timestamp' ) ) {
 337                 echo "...usertext,timestamp key on archive already exists.\n";
 338         } else {
 339                 echo "Adding usertext,timestamp key on archive table... ";
 340                 dbsource( archive("patch-archive-user-index.sql"), $wgDatabase );
 341                 echo "ok\n";
 342         }
 343 }
 344
 345 function do_image_user_index() {
 346         global $wgDatabase;
 347         if( $wgDatabase->indexExists( 'image', 'img_usertext_timestamp' ) ) {
 348                 echo "...usertext,timestamp key on image already exists.\n";
 349         } else {
 350                 echo "Adding usertext,timestamp key on image table... ";
 351                 dbsource( archive("patch-image-user-index.sql"), $wgDatabase );
 352                 echo "ok\n";
 353         }
 354 }
 355
 356 function do_oldimage_user_index() {
 357         global $wgDatabase;
 358         if( $wgDatabase->indexExists( 'oldimage', 'oi_usertext_timestamp' ) ) {
 359                 echo "...usertext,timestamp key on oldimage already exists.\n";
 360         } else {
 361                 echo "Adding usertext,timestamp key on oldimage table... ";
 362                 dbsource( archive("patch-oldimage-user-index.sql"), $wgDatabase );
 363                 echo "ok\n";
 364         }
 365 }
 366
 367 function do_watchlist_update() {
 368         global $wgDatabase;
 369         $fname = 'do_watchlist_update';
 370         if( $wgDatabase->fieldExists( 'watchlist', 'wl_notificationtimestamp' ) ) {
 371                 echo "The watchlist table is already set up for email notification.\n";
 372         } else {
 373                 echo "Adding wl_notificationtimestamp field for email notification management.";
 374                 /* ALTER TABLE watchlist ADD (wl_notificationtimestamp varchar(14) binary NOT NULL default '0'); */
 375                 dbsource( archive( 'patch-email-notification.sql' ), $wgDatabase );
 376                 echo "ok\n";
 377         }
 378         # Check if we need to add talk page rows to the watchlist
 379         $talk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', $fname );
 380         $nontalk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', $fname );
 381         if ( $talk != $nontalk ) {
 382                 echo "Adding missing watchlist talk page rows... ";
 383                 flush();
 384
 385                 $wgDatabase->insertSelect( 'watchlist', 'watchlist',
 386                         array(
 387                                 'wl_user' => 'wl_user',
 388                                 'wl_namespace' => 'wl_namespace | 1',
 389                                 'wl_title' => 'wl_title',
 390                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 391                         ), array( 'NOT (wl_namespace & 1)' ), $fname, 'IGNORE' );
 392                 echo "ok\n";
 393         } else {
 394                 echo "...watchlist talk page rows already present\n";
 395         }
 396 }
 397
 398 function do_copy_newtalk_to_watchlist() {
 399         global $wgDatabase;
 400         global $wgCommandLineMode;      # this needs to be saved while getID() and getName() are called
 401
 402         $res = $wgDatabase->safeQuery( 'SELECT user_id, user_ip FROM !',
 403                 $wgDatabase->tableName( 'user_newtalk' ) );
 404         $num_newtalks=$wgDatabase->numRows($res);
 405         echo "Now converting ".$num_newtalks." user_newtalk entries to watchlist table entries ... \n";
 406
 407         $user = new User();
 408         for ( $i = 1; $i <= $num_newtalks; $i++ ) {
 409                 $wluser = $wgDatabase->fetchObject( $res );
 410                 if ($wluser->user_id == 0) { # anonymous users ... have IP numbers as "names"
 411                         if ($user->isIP($wluser->user_ip)) { # do only if it really looks like an IP number (double checked)
 412                                 $wgDatabase->replace( 'watchlist',
 413                                         array(array('wl_user','wl_namespace', 'wl_title', 'wl_notificationtimestamp' )),
 414                                           array('wl_user'                       => 0,
 415                                                 'wl_namespace'                  => NS_USER_TALK,
 416                                                 'wl_title'                      => $wluser->user_ip,
 417                                                 'wl_notificationtimestamp'      => '19700101000000'
 418                                                 ), 'updaters.inc::do_watchlist_update2'
 419                                         );
 420                         }
 421                 } else { # normal users ... have user_ids
 422                         $user->setID($wluser->user_id);
 423                         $wgDatabase->replace( 'watchlist',
 424                                 array(array('wl_user','wl_namespace', 'wl_title', 'wl_notificationtimestamp' )),
 425                                   array('wl_user'                       => $user->getID(),
 426                                         'wl_namespace'                  => NS_USER_TALK,
 427                                         'wl_title'                      => $user->getName(),
 428                                         'wl_notificationtimestamp'      => '19700101000000'
 429                                         ), 'updaters.inc::do_watchlist_update3'
 430                                 );
 431                 }
 432         }
 433         echo "Done.\n";
 434 }
 435
 436
 437 function do_user_update() {
 438         global $wgDatabase;
 439         if( $wgDatabase->fieldExists( 'user', 'user_emailauthenticationtimestamp' ) ) {
 440                 echo "User table contains old email authentication field. Dropping... ";
 441                 dbsource( archive( 'patch-email-authentication.sql' ), $wgDatabase );
 442                 echo "ok\n";
 443         } else {
 444                 echo "...user table does not contain old email authentication field.\n";
 445         }
 446 }
 447
 448 /**
 449  * 1.4 betas were missing the 'binary' marker from logging.log_title,
 450  * which causes a collation mismatch error on joins in MySQL 4.1.
 451  */
 452 function check_bin( $table, $field, $patchFile ) {
 453         global $wgDatabase, $wgDBtype;
 454         if ($wgDBtype != 'mysql')
 455                 return;
 456         $tableName = $wgDatabase->tableName( $table );
 457         $res = $wgDatabase->query( "SELECT $field FROM $tableName LIMIT 0" );
 458         $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
 459         $wgDatabase->freeResult( $res );
 460
 461         if( in_array( 'binary', $flags ) ) {
 462                 echo "$table table has correct $field encoding.\n";
 463         } else {
 464                 echo "Fixing $field encoding on $table table... ";
 465                 dbsource( archive( $patchFile ), $wgDatabase );
 466                 echo "ok\n";
 467         }
 468 }
 469
 470 function do_schema_restructuring() {
 471         global $wgDatabase;
 472         $fname="do_schema_restructuring";
 473         if ( $wgDatabase->tableExists( 'page' ) ) {
 474                 echo "...page table already exists.\n";
 475         } else {
 476                 echo "...converting from cur/old to page/revision/text DB structure.\n"; flush();
 477                 echo wfTimestamp( TS_DB );
 478                 echo "......checking for duplicate entries.\n"; flush();
 479
 480                 list ($cur, $old, $page, $revision, $text) = $wgDatabase->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 481
 482                 $rows = $wgDatabase->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 483                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", $fname );
 484
 485                 if ( $wgDatabase->numRows( $rows ) > 0 ) {
 486                         echo wfTimestamp( TS_DB );
 487                         echo "......<b>Found duplicate entries</b>\n";
 488                         echo ( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 489                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 490                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 491                                         $duplicate[$row->cur_namespace] = array();
 492                                 }
 493                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 494                                 echo ( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 495                         }
 496                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 497                         $firstCond = true;
 498                         foreach ( $duplicate as $ns => $titles ) {
 499                                 if ( $firstCond ) {
 500                                         $firstCond = false;
 501                                 } else {
 502                                         $sql .= ' OR ';
 503                                 }
 504                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 505                                 $first = true;
 506                                 foreach ( $titles as $t ) {
 507                                         if ( $first ) {
 508                                                 $sql .= $wgDatabase->addQuotes( $t );
 509                                                 $first = false;
 510                                         } else {
 511                                                 $sql .= ', ' . $wgDatabase->addQuotes( $t );
 512                                         }
 513                                 }
 514                                 $sql .= ") ) \n";
 515                         }
 516                         # By sorting descending, the most recent entry will be the first in the list.
 517                         # All following entries will be deleted by the next while-loop.
 518                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 519
 520                         $rows = $wgDatabase->query( $sql, $fname );
 521
 522                         $prev_title = $prev_namespace = false;
 523                         $deleteId = array();
 524
 525                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 526                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 527                                         $deleteId[] = $row->cur_id;
 528                                 }
 529                                 $prev_title     = $row->cur_title;
 530                                 $prev_namespace = $row->cur_namespace;
 531                         }
 532                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 533                         $rows = $wgDatabase->query( $sql, $fname );
 534                         echo wfTimestamp( TS_DB );
 535                         echo "......<b>Deleted</b> ".$wgDatabase->affectedRows()." records.\n";
 536                 }
 537
 538
 539                 echo wfTimestamp( TS_DB );
 540                 echo "......Creating tables.\n";
 541                 $wgDatabase->query("CREATE TABLE $page (
 542                         page_id int(8) unsigned NOT NULL auto_increment,
 543                         page_namespace int NOT NULL,
 544                         page_title varchar(255) binary NOT NULL,
 545                         page_restrictions tinyblob NOT NULL,
 546                         page_counter bigint(20) unsigned NOT NULL default '0',
 547                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 548                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 549                         page_random real unsigned NOT NULL,
 550                         page_touched char(14) binary NOT NULL default '',
 551                         page_latest int(8) unsigned NOT NULL,
 552                         page_len int(8) unsigned NOT NULL,
 553
 554                         PRIMARY KEY page_id (page_id),
 555                         UNIQUE INDEX name_title (page_namespace,page_title),
 556                         INDEX (page_random),
 557                         INDEX (page_len)
 558                         ) ENGINE=InnoDB", $fname );
 559                 $wgDatabase->query("CREATE TABLE $revision (
 560                         rev_id int(8) unsigned NOT NULL auto_increment,
 561                         rev_page int(8) unsigned NOT NULL,
 562                         rev_comment tinyblob NOT NULL,
 563                         rev_user int(5) unsigned NOT NULL default '0',
 564                         rev_user_text varchar(255) binary NOT NULL default '',
 565                         rev_timestamp char(14) binary NOT NULL default '',
 566                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 567                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 568                         rev_len int(8) unsigned,
 569                         rev_parent_id int(8) unsigned default NULL,
 570                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 571                         UNIQUE INDEX rev_id (rev_id),
 572                         INDEX rev_timestamp (rev_timestamp),
 573                         INDEX page_timestamp (rev_page,rev_timestamp),
 574                         INDEX user_timestamp (rev_user,rev_timestamp),
 575                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 576                         ) ENGINE=InnoDB", $fname );
 577
 578                 echo wfTimestamp( TS_DB );
 579                 echo "......Locking tables.\n";
 580                 $wgDatabase->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", $fname );
 581
 582                 $maxold = intval( $wgDatabase->selectField( 'old', 'max(old_id)', '', $fname ) );
 583                 echo wfTimestamp( TS_DB );
 584                 echo "......maxold is {$maxold}\n";
 585
 586                 echo wfTimestamp( TS_DB );
 587                 global $wgLegacySchemaConversion;
 588                 if( $wgLegacySchemaConversion ) {
 589                         // Create HistoryBlobCurStub entries.
 590                         // Text will be pulled from the leftover 'cur' table at runtime.
 591                         echo "......Moving metadata from cur; using blob references to text in cur table.\n";
 592                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 593                         $cur_flags = "'object'";
 594                 } else {
 595                         // Copy all cur text in immediately: this may take longer but avoids
 596                         // having to keep an extra table around.
 597                         echo "......Moving text from cur.\n";
 598                         $cur_text = 'cur_text';
 599                         $cur_flags = "''";
 600                 }
 601                 $wgDatabase->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 602                                 old_timestamp, old_minor_edit, old_flags)
 603                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 604                         FROM $cur", $fname );
 605
 606                 echo wfTimestamp( TS_DB );
 607                 echo "......Setting up revision table.\n";
 608                 $wgDatabase->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 609                                 rev_minor_edit)
 610                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 611                                 old_timestamp, old_minor_edit
 612                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", $fname );
 613
 614                 echo wfTimestamp( TS_DB );
 615                 echo "......Setting up page table.\n";
 616                 $wgDatabase->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 617                                 page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 618                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 619                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 620                         FROM $cur,$revision
 621                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", $fname );
 622
 623                 echo wfTimestamp( TS_DB );
 624                 echo "......Unlocking tables.\n";
 625                 $wgDatabase->query( "UNLOCK TABLES", $fname );
 626
 627                 echo wfTimestamp( TS_DB );
 628                 echo "......Renaming old.\n";
 629                 $wgDatabase->query( "ALTER TABLE $old RENAME TO $text", $fname );
 630
 631                 echo wfTimestamp( TS_DB );
 632                 echo "...done.\n";
 633         }
 634 }
 635
 636 function do_inverse_timestamp() {
 637         global $wgDatabase;
 638         if( $wgDatabase->fieldExists( 'revision', 'inverse_timestamp' ) ) {
 639                 echo "Removing revision.inverse_timestamp and fixing indexes... ";
 640                 dbsource( archive( 'patch-inverse_timestamp.sql' ), $wgDatabase );
 641                 echo "ok\n";
 642         } else {
 643                 echo "revision timestamp indexes already up to 2005-03-13\n";
 644         }
 645 }
 646
 647 function do_text_id() {
 648         global $wgDatabase;
 649         if( $wgDatabase->fieldExists( 'revision', 'rev_text_id' ) ) {
 650                 echo "...rev_text_id already in place.\n";
 651         } else {
 652                 echo "Adding rev_text_id field... ";
 653                 dbsource( archive( 'patch-rev_text_id.sql' ), $wgDatabase );
 654                 echo "ok\n";
 655         }
 656 }
 657
 658 function do_namespace_size() {
 659         $tables = array(
 660                 'page'          => 'page',
 661                 'archive'       => 'ar',
 662                 'recentchanges' => 'rc',
 663                 'watchlist'     => 'wl',
 664                 'querycache'    => 'qc',
 665                 'logging'       => 'log',
 666         );
 667         foreach( $tables as $table => $prefix ) {
 668                 do_namespace_size_on( $table, $prefix );
 669                 flush();
 670         }
 671 }
 672
 673 function do_namespace_size_on( $table, $prefix ) {
 674         global $wgDatabase, $wgDBtype;
 675         if ($wgDBtype != 'mysql')
 676                 return;
 677         $field = $prefix . '_namespace';
 678
 679         $tablename = $wgDatabase->tableName( $table );
 680         $result = $wgDatabase->query( "SHOW COLUMNS FROM $tablename LIKE '$field'" );
 681         $info = $wgDatabase->fetchObject( $result );
 682         $wgDatabase->freeResult( $result );
 683
 684         if( substr( $info->Type, 0, 3 ) == 'int' ) {
 685                 echo "...$field is already a full int ($info->Type).\n";
 686         } else {
 687                 echo "Promoting $field from $info->Type to int... ";
 688
 689                 $sql = "ALTER TABLE $tablename MODIFY $field int NOT NULL";
 690                 $wgDatabase->query( $sql );
 691
 692                 echo "ok\n";
 693         }
 694 }
 695
 696 function do_pagelinks_update() {
 697         global $wgDatabase;
 698         if( $wgDatabase->tableExists( 'pagelinks' ) ) {
 699                 echo "...already have pagelinks table.\n";
 700         } else {
 701                 echo "Converting links and brokenlinks tables to pagelinks... ";
 702                 dbsource( archive( 'patch-pagelinks.sql' ), $wgDatabase );
 703                 echo "ok\n";
 704                 flush();
 705
 706                 global $wgCanonicalNamespaceNames;
 707                 foreach( $wgCanonicalNamespaceNames as $ns => $name ) {
 708                         if( $ns != 0 ) {
 709                                 do_pagelinks_namespace( $ns );
 710                         }
 711                 }
 712         }
 713 }
 714
 715 function do_pagelinks_namespace( $namespace ) {
 716         global $wgDatabase, $wgContLang;
 717
 718         $ns = intval( $namespace );
 719         echo "Cleaning up broken links for namespace $ns... ";
 720
 721         $pagelinks = $wgDatabase->tableName( 'pagelinks' );
 722         $name = $wgContLang->getNsText( $ns );
 723         $prefix = $wgDatabase->strencode( $name );
 724         $likeprefix = str_replace( '_', '\\_', $prefix);
 725
 726         $sql = "UPDATE $pagelinks
 727                    SET pl_namespace=$ns,
 728                        pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 729                  WHERE pl_namespace=0
 730                    AND pl_title LIKE '$likeprefix:%'";
 731
 732         $wgDatabase->query( $sql, 'do_pagelinks_namespace' );
 733         echo "ok\n";
 734 }
 735
 736 function do_drop_img_type() {
 737         global $wgDatabase;
 738
 739         if( $wgDatabase->fieldExists( 'image', 'img_type' ) ) {
 740                 echo "Dropping unused img_type field in image table... ";
 741                 dbsource( archive( 'patch-drop_img_type.sql' ), $wgDatabase );
 742                 echo "ok\n";
 743         } else {
 744                 echo "No img_type field in image table; Good.\n";
 745         }
 746 }
 747
 748 function do_old_links_update() {
 749         global $wgDatabase;
 750         if( $wgDatabase->tableExists( 'pagelinks' ) ) {
 751                 echo "Already have pagelinks; skipping old links table updates.\n";
 752         } else {
 753                 convertLinks(); flush();
 754         }
 755 }
 756
 757 function do_user_unique_update() {
 758         global $wgDatabase;
 759         $duper = new UserDupes( $wgDatabase );
 760         if( $duper->hasUniqueIndex() ) {
 761                 echo "Already have unique user_name index.\n";
 762         } else {
 763                 if( !$duper->clearDupes() ) {
 764                         echo "WARNING: This next step will probably fail due to unfixed duplicates...\n";
 765                 }
 766                 echo "Adding unique index on user_name... ";
 767                 dbsource( archive( 'patch-user_nameindex.sql' ), $wgDatabase );
 768                 echo "ok\n";
 769         }
 770 }
 771
 772 function do_user_groups_update() {
 773         $fname = 'do_user_groups_update';
 774         global $wgDatabase;
 775
 776         if( $wgDatabase->tableExists( 'user_groups' ) ) {
 777                 echo "...user_groups table already exists.\n";
 778                 return do_user_groups_reformat();
 779         }
 780
 781         echo "Adding user_groups table... ";
 782         dbsource( archive( 'patch-user_groups.sql' ), $wgDatabase );
 783         echo "ok\n";
 784
 785         if( !$wgDatabase->tableExists( 'user_rights' ) ) {
 786                 if( $wgDatabase->fieldExists( 'user', 'user_rights' ) ) {
 787                         echo "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion...";
 788                         dbsource( archive( 'patch-user_rights.sql' ), $wgDatabase );
 789                         echo "ok\n";
 790                 } else {
 791                         echo "*** WARNING: couldn't locate user_rights table or field for upgrade.\n";
 792                         echo "*** You may need to manually configure some sysops by manipulating\n";
 793                         echo "*** the user_groups table.\n";
 794                         return;
 795                 }
 796         }
 797
 798         echo "Converting user_rights table to user_groups... ";
 799         $result = $wgDatabase->select( 'user_rights',
 800                 array( 'ur_user', 'ur_rights' ),
 801                 array( "ur_rights != ''" ),
 802                 $fname );
 803
 804         while( $row = $wgDatabase->fetchObject( $result ) ) {
 805                 $groups = array_unique(
 806                         array_map( 'trim',
 807                                 explode( ',', $row->ur_rights ) ) );
 808
 809                 foreach( $groups as $group ) {
 810                         $wgDatabase->insert( 'user_groups',
 811                                 array(
 812                                         'ug_user'  => $row->ur_user,
 813                                         'ug_group' => $group ),
 814                                 $fname );
 815                 }
 816         }
 817         $wgDatabase->freeResult( $result );
 818         echo "ok\n";
 819 }
 820
 821 function do_user_groups_reformat() {
 822         # Check for bogus formats from previous 1.5 alpha code.
 823         global $wgDatabase;
 824         $info = $wgDatabase->fieldInfo( 'user_groups', 'ug_group' );
 825
 826         if( $info->type() == 'int' ) {
 827                 $oldug = $wgDatabase->tableName( 'user_groups' );
 828                 $newug = $wgDatabase->tableName( 'user_groups_bogus' );
 829                 echo "user_groups is in bogus intermediate format. Renaming to $newug... ";
 830                 $wgDatabase->query( "ALTER TABLE $oldug RENAME TO $newug" );
 831                 echo "ok\n";
 832
 833                 echo "Re-adding fresh user_groups table... ";
 834                 dbsource( archive( 'patch-user_groups.sql' ), $wgDatabase );
 835                 echo "ok\n";
 836
 837                 echo "***\n";
 838                 echo "*** WARNING: You will need to manually fix up user permissions in the user_groups\n";
 839                 echo "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n";
 840                 echo "***\n";
 841         } else {
 842                 echo "...user_groups is in current format.\n";
 843         }
 844
 845 }
 846
 847 function do_watchlist_null() {
 848         # Make sure wl_notificationtimestamp can be NULL,
 849         # and update old broken items.
 850         global $wgDatabase;
 851         $info = $wgDatabase->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 852
 853         if( !$info->nullable() ) {
 854                 echo "Making wl_notificationtimestamp nullable... ";
 855                 dbsource( archive( 'patch-watchlist-null.sql' ), $wgDatabase );
 856                 echo "ok\n";
 857         } else {
 858                 echo "...wl_notificationtimestamp is already nullable.\n";
 859         }
 860
 861 }
 862
 863 /**
 864  * @bug 3946
 865  */
 866 function do_page_random_update() {
 867         global $wgDatabase;
 868
 869         echo "Setting page_random to a random value on rows where it equals 0...";
 870
 871         $page = $wgDatabase->tableName( 'page' );
 872         $wgDatabase->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", 'do_page_random_update' );
 873         $rows = $wgDatabase->affectedRows();
 874
 875         echo "changed $rows rows\n";
 876 }
 877
 878 function do_templatelinks_update() {
 879         global $wgDatabase, $wgLoadBalancer;
 880         $fname = 'do_templatelinks_update';
 881
 882         if ( $wgDatabase->tableExists( 'templatelinks' ) ) {
 883                 echo "...templatelinks table already exists\n";
 884                 return;
 885         }
 886         echo "Creating templatelinks table...\n";
 887         dbsource( archive('patch-templatelinks.sql'), $wgDatabase );
 888         echo "Populating...\n";
 889         if ( isset( $wgLoadBalancer ) && $wgLoadBalancer->getServerCount() > 1 ) {
 890                 // Slow, replication-friendly update
 891                 $res = $wgDatabase->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 892                         array( 'pl_namespace' => NS_TEMPLATE ), $fname );
 893                 $count = 0;
 894                 while ( $row = $wgDatabase->fetchObject( $res ) ) {
 895                         $count = ($count + 1) % 100;
 896                         if ( $count == 0 ) {
 897                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
 898                                         wfWaitForSlaves( 10 );
 899                                 } else {
 900                                         sleep( 1 );
 901                                 }
 902                         }
 903                         $wgDatabase->insert( 'templatelinks',
 904                                 array(
 905                                         'tl_from' => $row->pl_from,
 906                                         'tl_namespace' => $row->pl_namespace,
 907                                         'tl_title' => $row->pl_title,
 908                                 ), $fname
 909                         );
 910
 911                 }
 912                 $wgDatabase->freeResult( $res );
 913         } else {
 914                 // Fast update
 915                 $wgDatabase->insertSelect( 'templatelinks', 'pagelinks',
 916                         array(
 917                                 'tl_from' => 'pl_from',
 918                                 'tl_namespace' => 'pl_namespace',
 919                                 'tl_title' => 'pl_title'
 920                         ), array(
 921                                 'pl_namespace' => 10
 922                         ), $fname
 923                 );
 924         }
 925         echo "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n";
 926 }
 927
 928 // Add index on ( rc_namespace, rc_user_text ) [Jul. 2006]
 929 // Add index on ( rc_user_text, rc_timestamp ) [Nov. 2006]
 930 function do_rc_indices_update() {
 931         global $wgDatabase;
 932         echo( "Checking for additional recent changes indices...\n" );
 933
 934         $indexes = array(
 935                 'rc_ns_usertext' => 'patch-recentchanges-utindex.sql',
 936                 'rc_user_text' => 'patch-rc_user_text-index.sql',
 937         );
 938
 939         foreach( $indexes as $index => $patch ) {
 940                 $info = $wgDatabase->indexInfo( 'recentchanges', $index, __METHOD__ );
 941                 if( !$info ) {
 942                         echo( "...index `{$index}` not found; adding..." );
 943                         dbsource( archive( $patch ) );
 944                         echo( "done.\n" );
 945                 } else {
 946                         echo( "...index `{$index}` seems ok.\n" );
 947                 }
 948         }
 949 }
 950
 951 function index_has_field($table, $index, $field) {
 952         global $wgDatabase;
 953         echo( "Checking if $table index $index includes field $field...\n" );
 954         $info = $wgDatabase->indexInfo( $table, $index, __METHOD__ );
 955         if( $info ) {
 956                 foreach($info as $row) {
 957                         if($row->Column_name == $field) {
 958                                 echo( "...index $index on table $table seems to be ok\n" );
 959                                 return true;
 960                         }
 961                 }
 962         }
 963         echo( "...index $index on table $table has no field $field; adding\n" );
 964         return false;
 965 }
 966
 967 function do_backlinking_indices_update() {
 968         echo( "Checking for backlinking indices...\n" );
 969         if (!index_has_field('pagelinks', 'pl_namespace', 'pl_from') ||
 970                 !index_has_field('templatelinks', 'tl_namespace', 'tl_from') ||
 971                 !index_has_field('imagelinks', 'il_to', 'il_from'))
 972         {
 973                 dbsource( archive( 'patch-backlinkindexes.sql' ) );
 974                 echo( "...backlinking indices updated\n" );
 975         }
 976 }
 977
 978 function do_categorylinks_indices_update() {
 979         echo( "Checking for categorylinks indices...\n" );
 980         if (!index_has_field('categorylinks', 'cl_sortkey', 'cl_from'))
 981         {
 982                 dbsource( archive( 'patch-categorylinksindex.sql' ) );
 983                 echo( "...categorylinks indices updated\n" );
 984         }
 985 }
 986
 987 function do_filearchive_indices_update() {
 988         global $wgDatabase;
 989         echo( "Checking filearchive indices...\n" );
 990         $info = $wgDatabase->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
 991         if ( !$info )
 992         {
 993                 dbsource( archive( 'patch-filearhive-user-index.sql' ) );
 994                 echo( "...filearchive indices updated\n" );
 995         }
 996 }
 997
 998 function maybe_do_profiling_memory_update() {
 999         global $wgDatabase;
1000         if ( !$wgDatabase->tableExists( 'profiling' ) ) {
1001                 // Simply ignore
1002         } elseif ( $wgDatabase->fieldExists( 'profiling', 'pf_memory' ) ) {
1003                 echo "profiling table has pf_memory field.\n";
1004         } else {
1005                 echo "Adding pf_memory field to table profiling...";
1006                 dbsource( archive( 'patch-profiling-memory.sql' ), $wgDatabase );
1007                 echo "ok\n";
1008         }
1009 }
1010
1011 function do_stats_init() {
1012         // Sometimes site_stats table is not properly populated.
1013         global $wgDatabase;
1014         echo "Checking site_stats row...";
1015         $row = $wgDatabase->selectRow( 'site_stats', '*', array( 'ss_row_id' => 1 ), __METHOD__ );
1016         if( $row === false ) {
1017                 echo "data is missing! rebuilding...\n";
1018
1019                 global $IP;
1020                 require_once "$IP/maintenance/initStats.inc";
1021                 wfInitStats();
1022         } else {
1023                 echo "ok.\n";
1024         }
1025 }
1026
1027 function purge_cache() {
1028         global $wgDatabase;
1029         # We can't guarantee that the user will be able to use TRUNCATE,
1030         # but we know that DELETE is available to us
1031         echo( "Purging caches..." );
1032         $wgDatabase->delete( 'objectcache', '*', __METHOD__ );
1033         echo( "done.\n" );
1034 }
1035
1036 function do_all_updates( $shared = false, $purge = true ) {
1037         global $wgNewTables, $wgNewFields, $wgRenamedTables, $wgSharedDB, $wgSharedTables, $wgDatabase, $wgDBtype, $IP;
1038
1039         wfRunHooks('LoadExtensionSchemaUpdates');
1040
1041         $doUser = $shared ? $wgSharedDB && in_array('user', $wgSharedTables) : !$wgSharedDB || !in_array('user', $wgSharedTables);
1042
1043         if ($wgDBtype === 'postgres') {
1044                 do_postgres_updates();
1045                 return;
1046         }
1047
1048         # Run core updates in sequence...
1049         global $wgMysqlUpdates;
1050         foreach( $wgMysqlUpdates as $params ) {
1051                 $func = array_shift( $params );
1052                 call_user_func_array( $func, $params );
1053                 flush();
1054         }
1055
1056         /// @fixme clean up this mess too!
1057         global $wgExtNewTables, $wgExtNewFields, $wgExtNewIndexes;
1058         # Add missing extension tables
1059         foreach ( $wgExtNewTables as $tableRecord ) {
1060                 add_table( $tableRecord[0], $tableRecord[1], true );
1061                 flush();
1062         }
1063         # Add missing extension fields
1064         foreach ( $wgExtNewFields as $fieldRecord ) {
1065                 if ( $fieldRecord[0] != 'user' || $doUser ) {
1066                         add_field( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
1067                 }
1068                 flush();
1069         }
1070         # Add missing extension indexes
1071         foreach ( $wgExtNewIndexes as $fieldRecord ) {
1072                 add_index( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
1073                 flush();
1074         }
1075
1076
1077         echo "Deleting old default messages (this may take a long time!)..."; flush();
1078         deleteDefaultMessages();
1079         echo "Done\n"; flush();
1080
1081         do_stats_init(); flush();
1082
1083         if( $purge ) {
1084                 purge_cache();
1085                 flush();
1086         }
1087 }
1088
1089 function archive($name) {
1090         global $wgDBtype, $IP;
1091         switch ($wgDBtype) {
1092         case "postgres":
1093                 return "$IP/maintenance/postgres/archives/$name";
1094         default:
1095                 return "$IP/maintenance/archives/$name";
1096         }
1097 }
1098
1099 function do_restrictions_update() {
1100         # Adding page_restrictions table, obsoleting page.page_restrictions.
1101         #  Migrating old restrictions to new table
1102         # -- Andrew Garrett, January 2007.
1103
1104         global $wgDatabase;
1105
1106         $name = 'page_restrictions';
1107         $patch = 'patch-page_restrictions.sql';
1108         $patch2 = 'patch-page_restrictions_sortkey.sql';
1109
1110         if ( $wgDatabase->tableExists( $name ) ) {
1111                 echo "...$name table already exists.\n";
1112         } else {
1113                 echo "Creating $name table...";
1114                 dbsource( archive($patch), $wgDatabase );
1115                 dbsource( archive($patch2), $wgDatabase );
1116                 echo "ok\n";
1117
1118                 echo "Migrating old restrictions to new table...";
1119
1120                 $res = $wgDatabase->select( 'page', array( 'page_id', 'page_restrictions' ), array("page_restrictions!=''", "page_restrictions!='edit=:move='"), __METHOD__ );
1121
1122                 $count = 0;
1123
1124                 while ($row = $wgDatabase->fetchObject($res) ) {
1125                         $count = ($count + 1) % 100;
1126
1127                         if ($count == 0) {
1128                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
1129                                         wfWaitForSlaves( 10 );
1130                                 } else {
1131                                         sleep( 1 );
1132                                 }
1133                         }
1134
1135                         # Figure out what the restrictions are..
1136                         $id = $row->page_id;
1137                         $flatrestrictions = explode( ':', $row->page_restrictions );
1138
1139                         $restrictions = array ();
1140                         foreach( $flatrestrictions as $restriction ) {
1141                                 $thisrestriction = explode( '=', $restriction, 2 );
1142                                 if( count( $thisrestriction ) == 1 ) {
1143                                         // Compatibility with old protections from before
1144                                         // separate move protection was added.
1145                                         list( $level ) = $thisrestriction;
1146                                         if( $level ) {
1147                                                 $restrictions['edit'] = $level;
1148                                                 $restrictions['move'] = $level;
1149                                         }
1150                                 } else {
1151                                         list( $type, $level ) = $thisrestriction;
1152                                         if( $level ) {
1153                                                 $restrictions[$type] = $level;
1154                                         }
1155                                 }
1156
1157                         $wgDatabase->update( 'page', array ( 'page_restrictions' => ''), array( 'page_id' => $id ), __METHOD__ );
1158
1159                         }
1160
1161                         foreach( $restrictions as $type => $level ) {
1162                                 $wgDatabase->insert( 'page_restrictions', array ( 'pr_page' => $id,
1163                                                                                         'pr_type' => $type,
1164                                                                                         'pr_level' => $level,
1165                                                                                         'pr_cascade' => 0,
1166                                                                                         'pr_expiry' => 'infinity' ),
1167                                                                                         __METHOD__ );
1168                         }
1169                 }
1170                 print "ok\n";
1171         }
1172 }
1173
1174 function do_category_population() {
1175         if( update_row_exists( 'populate category' ) ) {
1176                 echo "...category table already populated.\n";
1177                 return;
1178         }
1179         require_once( 'populateCategory.inc' );
1180         echo "Populating category table, printing progress markers.  ".
1181 "For large databases, you\n".
1182 "may want to hit Ctrl-C and do this manually with maintenance/\n".
1183 "populateCategory.php.\n";
1184         populateCategory( '', 10, 0, true );
1185         echo "Done populating category table.\n";
1186 }
1187
1188 function do_populate_parent_id() {
1189         if( update_row_exists( 'populate rev_parent_id' ) ) {
1190                 echo "...rev_parent_id column already populated.\n";
1191                 return;
1192         }
1193         require_once( 'populateParentId.inc' );
1194
1195         global $wgDatabase;
1196         populate_rev_parent_id( $wgDatabase );
1197 }
1198
1199 function update_password_format() {
1200         if ( update_row_exists( 'password format' ) ) {
1201                 echo "...password hash format already changed\n";
1202                 return;
1203         }
1204
1205         echo "Updating password hash format...";
1206
1207         global $wgDatabase, $wgPasswordSalt;
1208         $user = $wgDatabase->tableName( 'user' );
1209         if ( $wgPasswordSalt ) {
1210                 $sql = "UPDATE $user SET user_password=CONCAT(':B:', user_id, ':', user_password) " .
1211                         "WHERE user_password NOT LIKE ':%'";
1212         } else {
1213                 $sql = "UPDATE $user SET user_password=CONCAT(':A:', user_password) " .
1214                         "WHERE user_password NOT LIKE ':%'";
1215         }
1216         $wgDatabase->query( $sql, __METHOD__ );
1217         $wgDatabase->insert( 'updatelog', array( 'ul_key' => 'password format' ), __METHOD__ );
1218
1219         echo "done\n";
1220 }
1221
1222 function
1223 pg_describe_table($table)
1224 {
1225 global  $wgDatabase, $wgDBmwschema;
1226         $q = <<<END
1227 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
1228         WHERE pg_class.relnamespace = pg_namespace.oid
1229           AND attrelid=pg_class.oid AND attnum > 0
1230           AND relname=%s AND nspname=%s
1231 END;
1232         $res = $wgDatabase->query(sprintf($q,
1233                         $wgDatabase->addQuotes($table),
1234                         $wgDatabase->addQuotes($wgDBmwschema)));
1235         if (!$res)
1236                 return null;
1237
1238         $cols = array();
1239         while ($r = $wgDatabase->fetchRow($res)) {
1240                 $cols[] = array(
1241                                 "name" => $r[0],
1242                                 "ord" => $r[1],
1243                         );
1244         }
1245         return $cols;
1246 }
1247
1248 function
1249 pg_describe_index($idx)
1250 {
1251 global  $wgDatabase, $wgDBmwschema;
1252
1253         // first fetch the key (which is a list of columns ords) and
1254         // the table the index applies to (an oid)
1255         $q = <<<END
1256 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
1257         WHERE nspname=%s
1258           AND pg_class.relnamespace = pg_namespace.oid
1259           AND relname=%s
1260           AND indexrelid=pg_class.oid
1261 END;
1262         $res = $wgDatabase->query(sprintf($q,
1263                         $wgDatabase->addQuotes($wgDBmwschema),
1264                         $wgDatabase->addQuotes($idx)));
1265         if (!$res)
1266                 return null;
1267         if (!($r = $wgDatabase->fetchRow($res))) {
1268                 $wgDatabase->freeResult($res);
1269                 return null;
1270         }
1271
1272         $indkey = $r[0];
1273         $relid = intval($r[1]);
1274         $indkeys = explode(" ", $indkey);
1275         $wgDatabase->freeResult($res);
1276
1277         $colnames = array();
1278         foreach ($indkeys as $rid) {
1279                 $query = <<<END
1280 SELECT attname FROM pg_class, pg_attribute
1281         WHERE attrelid=$relid
1282           AND attnum=%d
1283           AND attrelid=pg_class.oid
1284 END;
1285                 $r2 = $wgDatabase->query(sprintf($query, $rid));
1286                 if (!$r2)
1287                         return null;
1288                 if (!($row2 = $wgDatabase->fetchRow($r2))) {
1289                         $wgDatabase->freeResult($r2);
1290                         return null;
1291                 }
1292                 $colnames[] = $row2[0];
1293                 $wgDatabase->freeResult($r2);
1294         }
1295
1296         return $colnames;
1297 }
1298
1299 function
1300 pg_index_exists($table, $index)
1301 {
1302 global  $wgDatabase, $wgDBmwschema;
1303         $exists = $wgDatabase->selectField("pg_indexes", "indexname",
1304                         array(  "indexname" => $index,
1305                                 "tablename" => $table,
1306                                 "schemaname" => $wgDBmwschema));
1307         return $exists === $index;
1308 }
1309
1310 function
1311 pg_fkey_deltype($fkey)
1312 {
1313 global  $wgDatabase, $wgDBmwschema;
1314         $q = <<<END
1315 SELECT confdeltype FROM pg_constraint, pg_namespace
1316         WHERE connamespace=pg_namespace.oid
1317           AND nspname=%s
1318           AND conname=%s;
1319 END;
1320         $r = $wgDatabase->query(sprintf($q,
1321                 $wgDatabase->addQuotes($wgDBmwschema),
1322                 $wgDatabase->addQuotes($fkey)));
1323         if (!($row = $wgDatabase->fetchRow($r)))
1324                 return null;
1325         return $row[0];
1326 }
1327
1328 function
1329 pg_rule_def($table, $rule)
1330 {
1331 global  $wgDatabase, $wgDBmwschema;
1332         $q = <<<END
1333 SELECT definition FROM pg_rules
1334         WHERE schemaname = %s
1335           AND tablename = %s
1336           AND rulename = %s
1337 END;
1338         $r = $wgDatabase->query(sprintf($q,
1339                         $wgDatabase->addQuotes($wgDBmwschema),
1340                         $wgDatabase->addQuotes($table),
1341                         $wgDatabase->addQuotes($rule)));
1342         $row = $wgDatabase->fetchRow($r);
1343         if (!$row)
1344                 return null;
1345         $d = $row[0];
1346         $wgDatabase->freeResult($r);
1347         return $d;
1348 }
1349
1350 function do_postgres_updates() {
1351         global $wgDatabase, $wgVersion, $wgDBmwschema, $wgDBts2schema, $wgShowExceptionDetails, $wgDBuser;
1352
1353         ## Gather version numbers in case we need them
1354         $version = $wgDatabase->getServerVersion(); ## long string
1355         $numver = $wgDatabase->numeric_version; ## X.Y e.g. 8.3
1356
1357         $wgShowExceptionDetails = 1;
1358
1359         # Just in case their LocalSettings.php does not have this:
1360         if ( !isset( $wgDBmwschema ))
1361                 $wgDBmwschema = 'mediawiki';
1362
1363         # Verify that this user is configured correctly
1364         $safeuser = $wgDatabase->addQuotes($wgDBuser);
1365         $SQL = "SELECT array_to_string(useconfig,'*') FROM pg_catalog.pg_user WHERE usename = $safeuser";
1366         $config = pg_fetch_result( $wgDatabase->doQuery( $SQL ), 0, 0 );
1367         $conf = array();
1368         foreach( explode( '*', $config ) as $c ) {
1369                 list( $x,$y ) = explode( '=', $c );
1370                 $conf[$x] = $y;
1371         }
1372         if( !array_key_exists( 'search_path', $conf ) ) {
1373                 $search_path = '';
1374         }
1375         else {
1376                 $search_path = $conf['search_path'];
1377         }
1378         if( strpos( $search_path, $wgDBmwschema ) === false ) {
1379                 echo "Adding in schema \"$wgDBmwschema\" to search_path for user \"$wgDBuser\"\n";
1380                 $search_path = "$wgDBmwschema, $search_path";
1381         }
1382         if( strpos( $search_path, $wgDBts2schema ) === false ) {
1383                 echo "Adding in schema \"$wgDBts2schema\" to search_path for user \"$wgDBuser\"\n";
1384                 $search_path = "$search_path, $wgDBts2schema";
1385         }
1386         if( array_key_exists( 'search_path', $conf ) === false || $search_path != $conf['search_path'] ) {
1387                 $wgDatabase->doQuery( "ALTER USER $wgDBuser SET search_path = $search_path" );
1388                 $wgDatabase->doQuery( "SET search_path = $search_path" );
1389         }
1390         else {
1391                 $path = $conf['search_path'];
1392                 echo "... search_path for user \"$wgDBuser\" looks correct ($path)\n";
1393         }
1394         $goodconf = array(
1395                 'client_min_messages' => 'error',
1396                 'DateStyle'           => 'ISO, YMD',
1397                 'TimeZone'            => 'GMT'
1398         );
1399         foreach( array_keys( $goodconf ) AS $key ) {
1400                 $value = $goodconf[$key];
1401                 if( !array_key_exists( $key, $conf ) or $conf[$key] !== $value ) {
1402                         echo "Setting $key to '$value' for user \"$wgDBuser\"\n";
1403                         $wgDatabase->doQuery( "ALTER USER $wgDBuser SET $key = '$value'" );
1404                         $wgDatabase->doQuery( "SET $key = '$value'" );
1405                 }
1406                 else {
1407                         echo "... default value of \"$key\" is correctly set to \"$value\" for user \"$wgDBuser\"\n";
1408                 }
1409         }
1410
1411         $newsequences = array(
1412                 "log_log_id_seq",
1413                 "pr_id_val",
1414         );
1415
1416         $newtables = array(
1417                 array("category",          "patch-category.sql"),
1418                 array("mediawiki_version", "patch-mediawiki_version.sql"),
1419                 array("mwuser",            "patch-mwuser.sql"),
1420                 array("pagecontent",       "patch-pagecontent.sql"),
1421                 array("querycachetwo",     "patch-querycachetwo.sql"),
1422                 array("page_props",        "patch-page_props.sql"),
1423                 array("page_restrictions", "patch-page_restrictions.sql"),
1424                 array("profiling",         "patch-profiling.sql"),
1425                 array("protected_titles",  "patch-protected_titles.sql"),
1426                 array("redirect",          "patch-redirect.sql"),
1427                 array("updatelog",         "patch-updatelog.sql"),
1428         );
1429
1430         $newcols = array(
1431                 array("archive",       "ar_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1432                 array("archive",       "ar_len",               "INTEGER"),
1433                 array("archive",       "ar_page_id",           "INTEGER"),
1434                 array("archive",       "ar_parent_id",         "INTEGER"),
1435                 array("image",         "img_sha1",             "TEXT NOT NULL DEFAULT ''"),
1436                 array("ipblocks",      "ipb_anon_only",        "CHAR NOT NULL DEFAULT '0'"),
1437                 array("ipblocks",      "ipb_by_text",          "TEXT NOT NULL DEFAULT ''"),
1438                 array("ipblocks",      "ipb_block_email",      "CHAR NOT NULL DEFAULT '0'"),
1439                 array("ipblocks",      "ipb_create_account",   "CHAR NOT NULL DEFAULT '1'"),
1440                 array("ipblocks",      "ipb_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1441                 array("ipblocks",      "ipb_enable_autoblock", "CHAR NOT NULL DEFAULT '1'"),
1442                 array("filearchive",   "fa_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1443                 array("logging",       "log_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1444                 array("logging",       "log_id",               "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('log_log_id_seq')"),
1445                 array("logging",       "log_params",           "TEXT"),
1446                 array("mwuser",        "user_editcount",       "INTEGER"),
1447                 array("mwuser",        "user_newpass_time",    "TIMESTAMPTZ"),
1448                 array("oldimage",      "oi_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1449                 array("oldimage",      "oi_metadata",          "BYTEA NOT NULL DEFAULT ''"),
1450                 array("oldimage",      "oi_media_type",        "TEXT"),
1451                 array("oldimage",      "oi_major_mime",        "TEXT NOT NULL DEFAULT 'unknown'"),
1452                 array("oldimage",      "oi_minor_mime",        "TEXT NOT NULL DEFAULT 'unknown'"),
1453                 array("oldimage",      "oi_sha1",              "TEXT NOT NULL DEFAULT ''"),
1454                 array("page_restrictions", "pr_id",            "INTEGER NOT NULL UNIQUE DEFAULT nextval('pr_id_val')"),
1455                 array("profiling",     "pf_memory",            "NUMERIC(18,10) NOT NULL DEFAULT 0"),
1456                 array("recentchanges", "rc_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1457                 array("recentchanges", "rc_log_action",        "TEXT"),
1458         array("recentchanges", "rc_log_type",          "TEXT"),
1459         array("recentchanges", "rc_logid",             "INTEGER NOT NULL DEFAULT 0"),
1460                 array("recentchanges", "rc_new_len",           "INTEGER"),
1461                 array("recentchanges", "rc_old_len",           "INTEGER"),
1462                 array("recentchanges", "rc_params",            "TEXT"),
1463                 array("revision",      "rev_len",              "INTEGER"),
1464                 array("revision",      "rev_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1465                 array("user_newtalk",  "user_last_timestamp",  "TIMESTAMPTZ"),
1466         );
1467
1468
1469         # table, column, desired type, USING clause if needed (with new default if needed)
1470         $typechanges = array(
1471                 array("archive",      "ar_deleted",      "smallint", ""),
1472                 array("archive",      "ar_minor_edit",   "smallint", "ar_minor_edit::smallint DEFAULT 0"),
1473                 array("filearchive",  "fa_deleted",      "smallint", ""),
1474                 array("filearchive",  "fa_height",       "integer",  ""),
1475                 array("filearchive",  "fa_metadata",     "bytea",    "decode(fa_metadata,'escape')"),
1476                 array("filearchive",  "fa_size",         "integer",  ""),
1477                 array("filearchive",  "fa_width",        "integer",  ""),
1478                 array("filearchive",  "fa_storage_group","text",     ""),
1479                 array("filearchive",  "fa_storage_key",  "text",     ""),
1480                 array("image",        "img_metadata",    "bytea",    "decode(img_metadata,'escape')"),
1481                 array("image",        "img_size",        "integer",  ""),
1482                 array("image",        "img_width",       "integer",  ""),
1483                 array("image",        "img_height",      "integer",  ""),
1484                 array("interwiki",    "iw_local",        "smallint", "iw_local::smallint DEFAULT 0"),
1485                 array("interwiki",    "iw_trans",        "smallint", "iw_trans::smallint DEFAULT 0"),
1486                 array("ipblocks",     "ipb_auto",        "smallint", "ipb_auto::smallint DEFAULT 0"),
1487                 array("ipblocks",     "ipb_anon_only",   "smallint", "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0"),
1488                 array("ipblocks",     "ipb_create_account", "smallint", "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1"),
1489                 array("ipblocks",     "ipb_enable_autoblock", "smallint", "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1"),
1490                 array("ipblocks",     "ipb_block_email", "smallint", "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0"),
1491                 array("ipblocks",     "ipb_address",     "text",     "ipb_address::text"),
1492                 array("ipblocks",     "ipb_deleted",     "smallint", "ipb_deleted::smallint"),
1493                 array("math",         "math_inputhash",  "bytea",    "decode(math_inputhash,'escape')"),
1494                 array("math",         "math_outputhash", "bytea",    "decode(math_outputhash,'escape')"),
1495                 array("mwuser",       "user_token",      "text",     ""),
1496                 array("mwuser",       "user_email_token","text",     ""),
1497                 array("objectcache",  "keyname",         "text",     ""),
1498                 array("oldimage",     "oi_height",       "integer",  ""),
1499                 array("oldimage",     "oi_size",         "integer",  ""),
1500                 array("oldimage",     "oi_width",        "integer",  ""),
1501                 array("page",         "page_is_redirect","smallint", "page_is_redirect::smallint DEFAULT 0"),
1502                 array("page",         "page_is_new",     "smallint", "page_is_new::smallint DEFAULT 0"),
1503                 array("querycache",   "qc_value",        "integer",  ""),
1504                 array("querycachetwo","qcc_value",       "integer",  ""),
1505                 array("recentchanges","rc_bot",          "smallint", "rc_bot::smallint DEFAULT 0"),
1506                 array("recentchanges","rc_deleted",      "smallint", ""),
1507                 array("recentchanges","rc_minor",        "smallint", "rc_minor::smallint DEFAULT 0"),
1508                 array("recentchanges","rc_new",          "smallint", "rc_new::smallint DEFAULT 0"),
1509                 array("recentchanges","rc_type",         "smallint", "rc_type::smallint DEFAULT 0"),
1510                 array("recentchanges","rc_patrolled",    "smallint", "rc_patrolled::smallint DEFAULT 0"),
1511                 array("revision",     "rev_deleted",     "smallint", "rev_deleted::smallint DEFAULT 0"),
1512                 array("revision",     "rev_minor_edit",  "smallint", "rev_minor_edit::smallint DEFAULT 0"),
1513                 array("templatelinks","tl_namespace",    "smallint", "tl_namespace::smallint"),
1514                 array("user_newtalk", "user_ip",         "text",     "host(user_ip)"),
1515         );
1516
1517         $newindexes = array(
1518                 array("archive",       "archive_user_text",  "(ar_user_text)"),
1519                 array("image",         "img_sha1",           "(img_sha1)"),
1520                 array("oldimage",      "oi_sha1",            "(oi_sha1)"),
1521                 array("revision",      "rev_text_id_idx",    "(rev_text_id)"),
1522                 array("recentchanges", "rc_timestamp_nobot", "(rc_timestamp) WHERE rc_bot = 0"),
1523         );
1524
1525         $newrules = array(
1526         );
1527
1528         foreach ($newsequences as $ns) {
1529                 if ($wgDatabase->sequenceExists($ns)) {
1530                         echo "... sequence \"$ns\" already exists\n";
1531                         continue;
1532                 }
1533
1534                 echo "Creating sequence \"$ns\"\n";
1535                 $wgDatabase->query("CREATE SEQUENCE $ns");
1536         }
1537
1538         foreach ($newtables as $nt) {
1539                 if ($wgDatabase->tableExists($nt[0])) {
1540                         echo "... table \"$nt[0]\" already exists\n";
1541                         continue;
1542                 }
1543
1544                 echo "Creating table \"$nt[0]\"\n";
1545                 dbsource(archive($nt[1]));
1546         }
1547
1548         ## Needed before newcols
1549         if ($wgDatabase->tableExists("archive2")) {
1550                 echo "Converting \"archive2\" back to normal archive table\n";
1551                 if ($wgDatabase->ruleExists("archive", "archive_insert")) {
1552                         echo "Dropping rule \"archive_insert\"\n";
1553                         $wgDatabase->query("DROP RULE archive_insert ON archive");
1554                 }
1555                 if ($wgDatabase->ruleExists("archive", "archive_delete")) {
1556                         echo "Dropping rule \"archive_delete\"\n";
1557                         $wgDatabase->query("DROP RULE archive_delete ON archive");
1558                 }
1559                 dbsource(archive("patch-remove-archive2.sql"));
1560         }
1561         else
1562                 echo "... obsolete table \"archive2\" does not exist\n";
1563
1564         foreach ($newcols as $nc) {
1565                 $fi = $wgDatabase->fieldInfo($nc[0], $nc[1]);
1566                 if (!is_null($fi)) {
1567                         echo "... column \"$nc[0].$nc[1]\" already exists\n";
1568                         continue;
1569                 }
1570
1571                 echo "Adding column \"$nc[0].$nc[1]\"\n";
1572                 $wgDatabase->query("ALTER TABLE $nc[0] ADD $nc[1] $nc[2]");
1573         }
1574
1575         foreach ($typechanges as $tc) {
1576                 $fi = $wgDatabase->fieldInfo($tc[0], $tc[1]);
1577                 if (is_null($fi)) {
1578                         echo "... error: expected column $tc[0].$tc[1] to exist\n";
1579                         exit(1);
1580                 }
1581
1582                 if ($fi->type() === $tc[2])
1583                         echo "... column \"$tc[0].$tc[1]\" is already of type \"$tc[2]\"\n";
1584                 else {
1585                         echo "Changing column type of \"$tc[0].$tc[1]\" from \"{$fi->type()}\" to \"$tc[2]\"\n";
1586                         $sql = "ALTER TABLE $tc[0] ALTER $tc[1] TYPE $tc[2]";
1587                         if (strlen($tc[3])) {
1588                                 $default = array();
1589                                 if (preg_match( '/DEFAULT (.+)/', $tc[3], $default)) {
1590                                         $sqldef = "ALTER TABLE $tc[0] ALTER $tc[1] SET DEFAULT $default[1]";
1591                                         $wgDatabase->query($sqldef);
1592                                         $tc[3] = preg_replace( '/\s*DEFAULT .+/', '', $tc[3]);
1593                                 }
1594                                 $sql .= " USING $tc[3]";
1595                         }
1596                         $sql .= ";\nCOMMIT;\n";
1597                         $wgDatabase->query($sql);
1598                 }
1599         }
1600
1601         if ($wgDatabase->fieldInfo('oldimage','oi_deleted')->type() !== 'smallint') {
1602                 echo "Changing \"oldimage.oi_deleted\" to type \"smallint\"\n";
1603                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
1604                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
1605                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
1606         }
1607         else
1608                 echo "... column \"oldimage.oi_deleted\" is already of type \"smallint\"\n";
1609
1610
1611         foreach ($newindexes as $ni) {
1612                 if (pg_index_exists($ni[0], $ni[1])) {
1613                         echo "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n";
1614                         continue;
1615                 }
1616                 echo "Creating index \"$ni[1]\" on table \"$ni[0]\" $ni[2]\n";
1617                 $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
1618         }
1619
1620         foreach ($newrules as $nr) {
1621                 if ($wgDatabase->ruleExists($nr[0], $nr[1])) {
1622                         echo "... rule \"$nr[1]\" on table \"$nr[0]\" already exists\n";
1623                         continue;
1624                 }
1625                 echo "Adding rule \"$nr[1]\" to table \"$nr[0]\"\n";
1626                 dbsource(archive($nr[2]));
1627         }
1628
1629         if ($wgDatabase->hasConstraint("oldimage_oi_name_fkey")) {
1630                 echo "Making foriegn key on table \"oldimage\" (to image) a cascade delete\n";
1631                 $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
1632                 $wgDatabase->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascade ".
1633                         "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE" );
1634         }
1635         else
1636                 echo "... table \"oldimage\" has correct cascade delete foreign key to image\n";
1637
1638         if (!$wgDatabase->triggerExists("page", "page_deleted")) {
1639                 echo "Adding function and trigger \"page_deleted\" to table \"page\"\n";
1640                 dbsource(archive('patch-page_deleted.sql'));
1641         }
1642         else
1643                 echo "... table \"page\" has \"page_deleted\" trigger\n";
1644
1645         $fi = $wgDatabase->fieldInfo("recentchanges", "rc_cur_id");
1646         if (!$fi->nullable()) {
1647                 echo "Removing NOT NULL constraint from \"recentchanges.rc_cur_id\"\n";
1648                 dbsource(archive('patch-rc_cur_id-not-null.sql'));
1649         }
1650         else
1651                 echo "... column \"recentchanges.rc_cur_id\" has a NOT NULL constraint\n";
1652
1653         $pu = pg_describe_index("pagelink_unique");
1654         if (!is_null($pu) && ($pu[0] != "pl_from" || $pu[1] != "pl_namespace" || $pu[2] != "pl_title")) {
1655                 echo "Dropping obsolete version of index \"pagelink_unique index\"\n";
1656                 $wgDatabase->query("DROP INDEX pagelink_unique");
1657                 $pu = null;
1658         }
1659         else
1660                 echo "... obsolete version of index \"pagelink_unique index\" does not exist\n";
1661
1662         if (is_null($pu)) {
1663                 echo "Creating index \"pagelink_unique index\"\n";
1664                 $wgDatabase->query("CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)");
1665         }
1666         else
1667                 echo "... index \"pagelink_unique_index\" aready exists\n";
1668
1669         if (pg_fkey_deltype("revision_rev_user_fkey") == 'r') {
1670                 echo "... constraint \"revision_rev_user_fkey\" is ON DELETE RESTRICT\n";
1671         }
1672         else {
1673                 echo "Changing constraint \"revision_rev_user_fkey\" to ON DELETE RESTRICT\n";
1674                 dbsource(archive('patch-revision_rev_user_fkey.sql'));
1675         }
1676
1677         global $wgExtNewTables, $wgExtPGNewFields, $wgExtNewIndexes;
1678         # Add missing extension tables
1679         foreach ( $wgExtNewTables as $nt ) {
1680                 if ($wgDatabase->tableExists($nt[0])) {
1681                         echo "... table \"$nt[0]\" already exists\n";
1682                         continue;
1683                 }
1684                 echo "Creating table \"$nt[0]\"\n";
1685                 dbsource($nt[1]);
1686         }
1687         # Add missing extension fields
1688         foreach ( $wgExtPGNewFields as $nc ) {
1689                 $fi = $wgDatabase->fieldInfo($nc[0], $nc[1]);
1690                 if (!is_null($fi)) {
1691                         echo "... column \"$nc[0].$nc[1]\" already exists\n";
1692                         continue;
1693                 }
1694                 echo "Adding column \"$nc[0].$nc[1]\"\n";
1695                 $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
1696         }
1697         # Add missing extension indexes
1698         foreach ( $wgExtNewIndexes as $ni ) {
1699                 if (pg_index_exists($ni[0], $ni[1])) {
1700                         echo "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n";
1701                         continue;
1702                 }
1703                 echo "Creating index \"$ni[1]\" on table \"$ni[0]\"\n";
1704                 dbsource($ni[2]);
1705         }
1706
1707         # Tweak the page_title tsearch2 trigger to filter out slashes
1708         # This is create or replace, so harmless to call if not needed
1709         dbsource(archive('patch-ts2pagetitle.sql'));
1710
1711         ## If the server is 8.3 or higher, rewrite teh tsearch2 triggers
1712         ## in case they have the old 'default' versions
1713         if ( $numver >= 8.3 )
1714                 dbsource(archive('patch-tsearch2funcs.sql'));
1715
1716         return;
1717 }
1718