Tidy up log deletion rows which didn't get subpages

Bug: 37714

Change-Id: I904988c864d777d039b2aae956aef7b19092cf83

diff --git a/maintenance/tidyUpBug37714.php b/maintenance/tidyUpBug37714.php
new file mode 100644 (file)
index 0000000..1ad9c7e
--- /dev/null
+++ b/maintenance/tidyUpBug37714.php
@@ -0,0 +1,49 @@
+<?php
+require_once __DIR__ . '/Maintenance.php';
+
+/**
+ * Fixes all rows affected by https://bugzilla.wikimedia.org/show_bug.cgi?id=37714
+ */
+class TidyUpBug37714 extends Maintenance {
+       public function execute() {
+               // Search for all log entries which are about changing the visability of other log entries.
+               $result = wfGetDB( DB_SLAVE )->select(
+                       'logging',
+                       array( 'log_id', 'log_params' ),
+                       array(
+                               'log_type' => array( 'suppress', 'delete' ),
+                               'log_action' => 'event',
+                               'log_namespace' => NS_SPECIAL,
+                               'log_title' => SpecialPage::getTitleFor( 'Log' )->getText()
+                       ),
+                       __METHOD__
+               );
+
+               foreach ( $result as $row ) {
+                       $paramLines = explode( "\n", $row->log_params );
+                       $ids = explode( ',', $paramLines[0] ); // Array dereferencing is PHP >= 5.4 :(
+                       $result = wfGetDB( DB_SLAVE )->select( // Work out what log entries were changed here.
+                               'logging',
+                               'log_type',
+                               array( 'log_id' => $ids ),
+                               __METHOD__,
+                               'DISTINCT'
+                       );
+                       if ( $result->numRows() === 1 ) {
+                               // If there's only one type, the target title can be set to include it.
+                               $logTitle = SpecialPage::getTitleFor( 'Log', $result->current()->log_type )->getText();
+                               $this->output( 'Set log_title to "' . $logTitle . '" for log entry ' . $row->log_id . ".\n" );
+                               wfGetDB( DB_MASTER )->update(
+                                       'logging',
+                                       array( 'log_title' => $logTitle ),
+                                       array( 'log_id' => $row->log_id ),
+                                       __METHOD__
+                               );
+                               wfWaitForSlaves();
+                       }
+               }
+       }
+}
+
+$maintClass = 'TidyUpBug37714';
+require_once RUN_MAINTENANCE_IF_MAIN;