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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | * |
| 18 | * @file |
| 19 | */ |
| 20 | |
| 21 | require_once __DIR__ . '/Maintenance.php'; |
| 22 | |
| 23 | /** |
| 24 | * Maintenance script that merges the revision_comment_temp table into the |
| 25 | * revision table. |
| 26 | * |
| 27 | * @ingroup Maintenance |
| 28 | * @since 1.40 |
| 29 | */ |
| 30 | class MigrateRevisionCommentTemp extends LoggedUpdateMaintenance { |
| 31 | public function __construct() { |
| 32 | parent::__construct(); |
| 33 | $this->addDescription( |
| 34 | 'Copy the data from the revision_comment_temp into the revision table' |
| 35 | ); |
| 36 | $this->addOption( |
| 37 | 'sleep', |
| 38 | 'Sleep time (in seconds) between every batch. Default: 0', |
| 39 | false, |
| 40 | true |
| 41 | ); |
| 42 | } |
| 43 | |
| 44 | protected function getUpdateKey() { |
| 45 | return __CLASS__; |
| 46 | } |
| 47 | |
| 48 | protected function doDBUpdates() { |
| 49 | $batchSize = $this->getBatchSize(); |
| 50 | |
| 51 | $dbw = $this->getDB( DB_PRIMARY ); |
| 52 | if ( !$dbw->fieldExists( 'revision', 'rev_comment_id', __METHOD__ ) ) { |
| 53 | $this->output( "Run update.php to create rev_comment_id.\n" ); |
| 54 | return false; |
| 55 | } |
| 56 | if ( !$dbw->tableExists( 'revision_comment_temp', __METHOD__ ) ) { |
| 57 | $this->output( "revision_comment_temp does not exist, so nothing to do.\n" ); |
| 58 | return true; |
| 59 | } |
| 60 | |
| 61 | $this->output( "Merging the revision_comment_temp table into the revision table...\n" ); |
| 62 | $conds = []; |
| 63 | $updated = 0; |
| 64 | $sleep = (int)$this->getOption( 'sleep', 0 ); |
| 65 | while ( true ) { |
| 66 | $res = $dbw->newSelectQueryBuilder() |
| 67 | ->select( [ 'rev_id', 'revcomment_comment_id' ] ) |
| 68 | ->from( 'revision' ) |
| 69 | ->join( 'revision_comment_temp', null, 'rev_id=revcomment_rev' ) |
| 70 | ->where( [ 'rev_comment_id' => 0 ] ) |
| 71 | ->andWhere( $conds ) |
| 72 | ->limit( $batchSize ) |
| 73 | ->orderBy( 'rev_id' ) |
| 74 | ->caller( __METHOD__ ) |
| 75 | ->fetchResultSet(); |
| 76 | |
| 77 | $numRows = $res->numRows(); |
| 78 | |
| 79 | $last = null; |
| 80 | foreach ( $res as $row ) { |
| 81 | $last = $row->rev_id; |
| 82 | $dbw->newUpdateQueryBuilder() |
| 83 | ->update( 'revision' ) |
| 84 | ->set( [ 'rev_comment_id' => $row->revcomment_comment_id ] ) |
| 85 | ->where( [ 'rev_id' => $row->rev_id ] ) |
| 86 | ->caller( __METHOD__ )->execute(); |
| 87 | $updated += $dbw->affectedRows(); |
| 88 | } |
| 89 | |
| 90 | if ( $numRows < $batchSize ) { |
| 91 | // We must have reached the end |
| 92 | break; |
| 93 | } |
| 94 | |
| 95 | // @phan-suppress-next-line PhanTypeSuspiciousStringExpression last is not-null when used |
| 96 | $this->output( "... rev_id=$last, updated $updated\n" ); |
| 97 | $conds = [ $dbw->expr( 'rev_id', '>', $last ) ]; |
| 98 | |
| 99 | // Sleep between batches for replication to catch up |
| 100 | $this->waitForReplication(); |
| 101 | if ( $sleep > 0 ) { |
| 102 | sleep( $sleep ); |
| 103 | } |
| 104 | } |
| 105 | $this->output( |
| 106 | "Completed merge of revision_comment_temp into the revision table, " |
| 107 | . "$updated rows updated.\n" |
| 108 | ); |
| 109 | return true; |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | $maintClass = MigrateRevisionCommentTemp::class; |
| 114 | require_once RUN_MAINTENANCE_IF_MAIN; |