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-rw-r--r--maintenance/initEditCount.php85
1 files changed, 85 insertions, 0 deletions
diff --git a/maintenance/initEditCount.php b/maintenance/initEditCount.php
new file mode 100644
index 00000000..9d165cfb
--- /dev/null
+++ b/maintenance/initEditCount.php
@@ -0,0 +1,85 @@
+<?php
+
+require_once "commandLine.inc";
+
+if( isset( $options['help'] ) ) {
+ die( "Batch-recalculate user_editcount fields from the revision table.
+Options:
+ --quick Force the update to be done in a single query.
+ --background Force replication-friendly mode; may be inefficient but
+ avoids locking tables or lagging slaves with large updates;
+ calculates counts on a slave if possible.
+
+Background mode will be automatically used if the server is MySQL 4.0
+(which does not support subqueries) or if multiple servers are listed
+in \$wgDBservers, usually indicating a replication environment.
+
+");
+}
+$dbw = wfGetDB( DB_MASTER );
+$user = $dbw->tableName( 'user' );
+$revision = $dbw->tableName( 'revision' );
+
+$dbver = $dbw->getServerVersion();
+
+// Autodetect mode...
+$backgroundMode = count( $wgDBservers ) > 1 ||
+ ($dbw instanceof DatabaseMySql && version_compare( $dbver, '4.1' ) < 0);
+
+if( isset( $options['background'] ) ) {
+ $backgroundMode = true;
+} elseif( isset( $options['quick'] ) ) {
+ $backgroundMode = false;
+}
+
+if( $backgroundMode ) {
+ echo "Using replication-friendly background mode...\n";
+
+ $dbr = wfGetDB( DB_SLAVE );
+ $chunkSize = 100;
+ $lastUser = $dbr->selectField( 'user', 'MAX(user_id)', '', __FUNCTION__ );
+
+ $start = microtime( true );
+ $migrated = 0;
+ for( $min = 0; $min <= $lastUser; $min += $chunkSize ) {
+ $max = $min + $chunkSize;
+ $result = $dbr->query(
+ "SELECT
+ user_id,
+ COUNT(rev_user) AS user_editcount
+ FROM $user
+ LEFT OUTER JOIN $revision ON user_id=rev_user
+ WHERE user_id > $min AND user_id <= $max
+ GROUP BY user_id",
+ __FUNCTION__ );
+
+ while( $row = $dbr->fetchObject( $result ) ) {
+ $dbw->update( 'user',
+ array( 'user_editcount' => $row->user_editcount ),
+ array( 'user_id' => $row->user_id ),
+ __FUNCTION__ );
+ ++$migrated;
+ }
+ $dbr->freeResult( $result );
+
+ $delta = microtime( true ) - $start;
+ $rate = ($delta == 0.0) ? 0.0 : $migrated / $delta;
+ printf( "%s %d (%0.1f%%) done in %0.1f secs (%0.3f accounts/sec).\n",
+ $wgDBname,
+ $migrated,
+ min( $max, $lastUser ) / $lastUser * 100.0,
+ $delta,
+ $rate );
+
+ wfWaitForSlaves( 10 );
+ }
+} else {
+ // Subselect should work on modern MySQLs etc
+ echo "Using single-query mode...\n";
+ $sql = "UPDATE $user SET user_editcount=(SELECT COUNT(*) FROM $revision WHERE rev_user=user_id)";
+ $dbw->query( $sql );
+}
+
+echo "Done!\n";
+
+?>