Drop archive.ar_text and ar_flags

[lhc/web/wiklou.git] / includes / api / ApiQueryDeletedrevs.php

diff --git a/includes/api/ApiQueryDeletedrevs.php b/includes/api/ApiQueryDeletedrevs.php
index 6e6757e..83d00a9 100644 (file)
--- a/includes/api/ApiQueryDeletedrevs.php
+++ b/includes/api/ApiQueryDeletedrevs.php
@@ -110,8 +110,12 @@ class ApiQueryDeletedrevs extends ApiQueryBase {
 
                $this->addFieldsIf( 'ar_parent_id', $fld_parentid );
                $this->addFieldsIf( 'ar_rev_id', $fld_revid );
-               $this->addFieldsIf( 'ar_user_text', $fld_user );
-               $this->addFieldsIf( 'ar_user', $fld_userid );
+               if ( $fld_user || $fld_userid ) {
+                       $actorQuery = ActorMigration::newMigration()->getJoin( 'ar_user' );
+                       $this->addTables( $actorQuery['tables'] );
+                       $this->addFields( $actorQuery['fields'] );
+                       $this->addJoinConds( $actorQuery['joins'] );
+               }
                $this->addFieldsIf( 'ar_minor_edit', $fld_minor );
                $this->addFieldsIf( 'ar_len', $fld_len );
                $this->addFieldsIf( 'ar_sha1', $fld_sha1 );
@@ -140,17 +144,11 @@ class ApiQueryDeletedrevs extends ApiQueryBase {
                }
 
                if ( $fld_content ) {
-                       // Modern MediaWiki has the content for deleted revs in the 'text'
-                       // table using fields old_text and old_flags. But revisions deleted
-                       // pre-1.5 store the content in the 'archive' table directly using
-                       // fields ar_text and ar_flags, and no corresponding 'text' row. So
-                       // we have to LEFT JOIN and fetch all four fields, plus ar_text_id
-                       // to be able to tell the difference.
                        $this->addTables( 'text' );
                        $this->addJoinConds(
                                [ 'text' => [ 'LEFT JOIN', [ 'ar_text_id=old_id' ] ] ]
                        );
-                       $this->addFields( [ 'ar_text', 'ar_flags', 'ar_text_id', 'old_text', 'old_flags' ] );
+                       $this->addFields( [ 'ar_text_id', 'old_text', 'old_flags' ] );
 
                        // This also means stricter restrictions
                        $this->checkUserRightsAny( [ 'deletedtext', 'undelete' ] );
@@ -199,10 +197,19 @@ class ApiQueryDeletedrevs extends ApiQueryBase {
                }
 
                if ( !is_null( $params['user'] ) ) {
-                       $this->addWhereFld( 'ar_user_text', $params['user'] );
+                       // Don't query by user ID here, it might be able to use the ar_usertext_timestamp index.
+                       $actorQuery = ActorMigration::newMigration()
+                               ->getWhere( $db, 'ar_user', User::newFromName( $params['user'], false ), false );
+                       $this->addTables( $actorQuery['tables'] );
+                       $this->addJoinConds( $actorQuery['joins'] );
+                       $this->addWhere( $actorQuery['conds'] );
                } elseif ( !is_null( $params['excludeuser'] ) ) {
-                       $this->addWhere( 'ar_user_text != ' .
-                               $db->addQuotes( $params['excludeuser'] ) );
+                       // Here there's no chance of using ar_usertext_timestamp.
+                       $actorQuery = ActorMigration::newMigration()
+                               ->getWhere( $db, 'ar_user', User::newFromName( $params['excludeuser'], false ) );
+                       $this->addTables( $actorQuery['tables'] );
+                       $this->addJoinConds( $actorQuery['joins'] );
+                       $this->addWhere( 'NOT(' . $actorQuery['conds'] . ')' );
                }
 
                if ( !is_null( $params['user'] ) || !is_null( $params['excludeuser'] ) ) {
@@ -251,10 +258,6 @@ class ApiQueryDeletedrevs extends ApiQueryBase {
                }
 
                $this->addOption( 'LIMIT', $limit + 1 );
-               $this->addOption(
-                       'USE INDEX',
-                       [ 'archive' => ( $mode == 'user' ? 'ar_usertext_timestamp' : 'name_title_timestamp' ) ]
-               );
                if ( $mode == 'all' ) {
                        if ( $params['unique'] ) {
                                // @todo Does this work on non-MySQL?
@@ -361,12 +364,7 @@ class ApiQueryDeletedrevs extends ApiQueryBase {
                                        $anyHidden = true;
                                }
                                if ( Revision::userCanBitfield( $row->ar_deleted, Revision::DELETED_TEXT, $user ) ) {
-                                       if ( isset( $row->ar_text ) && !$row->ar_text_id ) {
-                                               // Pre-1.5 ar_text row (if condition from Revision::newFromArchiveRow)
-                                               ApiResult::setContentValue( $rev, 'text', Revision::getRevisionText( $row, 'ar_' ) );
-                                       } else {
-                                               ApiResult::setContentValue( $rev, 'text', Revision::getRevisionText( $row ) );
-                                       }
+                                       ApiResult::setContentValue( $rev, 'text', Revision::getRevisionText( $row ) );
                                }
                        }