3 * Rebuild recent changes table.
6 * @addtogroup Maintenance
10 function rebuildRecentChangesTablePass1()
12 $fname = 'rebuildRecentChangesTablePass1';
13 $dbw = wfGetDB( DB_MASTER );
14 extract( $dbw->tableNames( 'recentchanges', 'cur', 'old' ) );
16 $dbw->delete( 'recentchanges', '*' );
18 print( "Loading from page and revision tables...\n" );
21 $cutoff = time() - $wgRCMaxAge;
22 $dbw->insertSelect( 'recentchanges', array( 'page', 'revision' ),
24 'rc_timestamp' => 'rev_timestamp',
25 'rc_cur_time' => 'rev_timestamp',
26 'rc_user' => 'rev_user',
27 'rc_user_text' => 'rev_user_text',
28 'rc_namespace' => 'page_namespace',
29 'rc_title' => 'page_title',
30 'rc_comment' => 'rev_comment',
31 'rc_minor' => 'rev_minor_edit',
33 'rc_new' => 'page_is_new',
34 'rc_cur_id' => 'page_id',
35 'rc_this_oldid' => 'rev_id',
36 'rc_last_oldid' => 0, // is this ok?
37 'rc_type' => $dbw->conditional( 'page_is_new != 0', RC_NEW, RC_EDIT ),
39 'rev_timestamp > ' . $dbw->addQuotes( $dbw->timestamp( $cutoff ) ),
42 array(), // INSERT options
43 array( 'ORDER BY' => 'rev_timestamp', 'LIMIT' => 5000 ) // SELECT options
47 function rebuildRecentChangesTablePass2()
49 $dbw = wfGetDB( DB_MASTER );
50 list ($recentchanges, $revision) = $dbw->tableNamesN( 'recentchanges', 'revision' );
52 print( "Updating links...\n" );
54 # Fill in the rc_last_oldid field, which points to the previous edit
56 $sql = "SELECT rc_cur_id,rc_this_oldid,rc_timestamp FROM $recentchanges " .
57 "ORDER BY rc_cur_id,rc_timestamp";
58 $res = $dbw->query( $sql, DB_MASTER );
62 while ( $obj = $dbw->fetchObject( $res ) ) {
64 if( $obj->rc_cur_id != $lastCurId ) {
65 # Switch! Look up the previous last edit, if any
66 $lastCurId = intval( $obj->rc_cur_id );
67 $emit = $obj->rc_timestamp;
68 $sql2 = "SELECT rev_id FROM $revision " .
69 "WHERE rev_page={$lastCurId} ".
70 "AND rev_timestamp<'{$emit}' ORDER BY rev_timestamp DESC LIMIT 1";
71 $res2 = $dbw->query( $sql2 );
72 if( $row = $dbw->fetchObject( $res2 ) ) {
73 $lastOldId = intval( $row->rev_id );
79 $dbw->freeResult( $res2 );
81 if( $lastCurId == 0 ) {
82 print "Uhhh, something wrong? No curid\n";
84 $sql3 = "UPDATE $recentchanges SET rc_last_oldid=$lastOldId,rc_new=$new,rc_type=$new " .
85 "WHERE rc_cur_id={$lastCurId} AND rc_this_oldid={$obj->rc_this_oldid}";
87 $lastOldId = intval( $obj->rc_this_oldid );
90 $dbw->freeResult( $res );