3 * Rebuild recent changes table.
6 * @addtogroup Maintenance
9 /** Public entry; more passes might come in! :) */
10 function rebuildRecentChangesTable() {
11 rebuildRecentChangesTablePass1();
12 rebuildRecentChangesTablePass2();
13 rebuildRecentChangesTablePass3();
17 function rebuildRecentChangesTablePass1()
19 $fname = 'rebuildRecentChangesTablePass1';
20 $dbw = wfGetDB( DB_MASTER );
22 $dbw->delete( 'recentchanges', '*' );
24 print( "Loading from page and revision tables...\n" );
27 $cutoff = time() - $wgRCMaxAge;
28 $dbw->insertSelect( 'recentchanges', array( 'page', 'revision' ),
30 'rc_timestamp' => 'rev_timestamp',
31 'rc_cur_time' => 'rev_timestamp',
32 'rc_user' => 'rev_user',
33 'rc_user_text' => 'rev_user_text',
34 'rc_namespace' => 'page_namespace',
35 'rc_title' => 'page_title',
36 'rc_comment' => 'rev_comment',
37 'rc_minor' => 'rev_minor_edit',
39 'rc_new' => 'page_is_new',
40 'rc_cur_id' => 'page_id',
41 'rc_this_oldid' => 'rev_id',
42 'rc_last_oldid' => 0, // is this ok?
43 'rc_type' => $dbw->conditional( 'page_is_new != 0', RC_NEW, RC_EDIT ),
45 'rev_timestamp > ' . $dbw->addQuotes( $dbw->timestamp( $cutoff ) ),
48 array(), // INSERT options
49 array( 'ORDER BY' => 'rev_timestamp DESC', 'LIMIT' => 5000 ) // SELECT options
53 function rebuildRecentChangesTablePass2()
55 $dbw = wfGetDB( DB_MASTER );
56 list ($recentchanges, $revision) = $dbw->tableNamesN( 'recentchanges', 'revision' );
58 print( "Updating links and size differences...\n" );
60 # Fill in the rc_last_oldid field, which points to the previous edit
61 $sql = "SELECT rc_cur_id,rc_this_oldid,rc_timestamp FROM $recentchanges " .
62 "ORDER BY rc_cur_id,rc_timestamp";
63 $res = $dbw->query( $sql, DB_MASTER );
67 while ( $obj = $dbw->fetchObject( $res ) ) {
69 if( $obj->rc_cur_id != $lastCurId ) {
70 # Switch! Look up the previous last edit, if any
71 $lastCurId = intval( $obj->rc_cur_id );
72 $emit = $obj->rc_timestamp;
73 $sql2 = "SELECT rev_id, rev_len FROM $revision " .
74 "WHERE rev_page={$lastCurId} ".
75 "AND rev_timestamp<'{$emit}' ORDER BY rev_timestamp DESC LIMIT 1";
76 $res2 = $dbw->query( $sql2 );
77 if( $row = $dbw->fetchObject( $res2 ) ) {
78 $lastOldId = intval( $row->rev_id );
79 $lastSize = $row->rev_len; # Grab the last text size
86 $dbw->freeResult( $res2 );
88 if( $lastCurId == 0 ) {
89 print "Uhhh, something wrong? No curid\n";
91 # Grab the entry's text size
92 $size = $dbw->selectField( 'revision', 'rev_len', array('rev_id' => $obj->rc_this_oldid ) );
93 $size = $size ? $size : 'NULL';
95 $sql3 = "UPDATE $recentchanges SET rc_last_oldid=$lastOldId,rc_new=$new,rc_type=$new," .
96 "rc_old_len='$lastSize',rc_new_len='$size' " .
97 "WHERE rc_cur_id={$lastCurId} AND rc_this_oldid={$obj->rc_this_oldid}";
100 $lastOldId = intval( $obj->rc_this_oldid );
103 $dbw->freeResult( $res );
106 function rebuildRecentChangesTablePass3()
108 global $wgGroupPermissions, $wgUseRCPatrol;
110 $dbw = wfGetDB( DB_MASTER );
112 list($recentchanges,$usergroups,$user) = $dbw->tableNamesN( 'recentchanges', 'user_groups', 'user' );
114 $botgroups = $autopatrolgroups = array();
115 foreach( $wgGroupPermissions as $group => $rights ) {
116 if( isset( $rights['bot'] ) && $rights['bot'] == true ) {
117 $botgroups[] = $dbw->addQuotes( $group );
119 if( $wgUseRCPatrol && isset( $rights['autopatrol'] ) && $rights['autopatrol'] == true ) {
120 $autopatrolgroups[] = $dbw->addQuotes( $group );
123 # Flag our recent bot edits
124 if( !empty($botgroups) ) {
125 $botwhere = implode(',',$botgroups);
128 print( "Flagging bot account edits...\n" );
130 # Find all users that are bots
131 $sql = "SELECT DISTINCT user_name FROM $usergroups, $user " .
132 "WHERE ug_group IN($botwhere) AND user_id = ug_user";
133 $res = $dbw->query( $sql, DB_MASTER );
135 while( $obj = $dbw->fetchObject( $res ) ) {
136 $botusers[] = $dbw->addQuotes( $obj->user_name );
138 # Fill in the rc_bot field
139 if( !empty($botusers) ) {
140 $botwhere = implode(',',$botusers);
141 $sql2 = "UPDATE $recentchanges SET rc_bot=1 " .
142 "WHERE rc_user_text IN($botwhere)";
143 $dbw->query( $sql2 );
146 # Flag our recent autopatrolled edits
147 if( !empty($autopatrolgroups) ) {
148 $patrolwhere = implode(',',$autopatrolgroups);
149 $patrolusers = array();
151 print( "Flagging auto-patrolled edits...\n" );
153 # Find all users in RC with autopatrol rights
154 $sql = "SELECT DISTINCT user_name FROM $usergroups, $user " .
155 "WHERE ug_group IN($patrolwhere) AND user_id = ug_user";
156 $res = $dbw->query( $sql, DB_MASTER );
158 while( $obj = $dbw->fetchObject( $res ) ) {
159 $patrolusers[] = $dbw->addQuotes( $obj->user_name );
162 # Fill in the rc_patrolled field
163 if( !empty($patrolusers) ) {
164 $patrolwhere = implode(',',$patrolusers);
165 $sql2 = "UPDATE $recentchanges SET rc_patrolled=1 " .
166 "WHERE rc_user_text IN($patrolwhere)";
167 $dbw->query( $sql2 );
171 $dbw->freeResult( $res );