From 1e40bfe6d04cf72e2ed62f80a1fef5841a1266a2 Mon Sep 17 00:00:00 2001
From: Matthias Mullie <git@mullie.eu>
Date: Tue, 29 Oct 2013 12:15:18 +0100
Subject: [PATCH] Give extensions a chance to hide their (unrelated) log
 entries

Change-Id: Id8b0f29d6e2ac9d7cab8f3d1efcb202062a6ad0b
---
 HISTORY              | 2 ++
 docs/hooks.txt       | 7 +++++++
 includes/Article.php | 9 +++++++--
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/HISTORY b/HISTORY
index 88cc906d4f..0e7de0c3ed 100644
--- a/HISTORY
+++ b/HISTORY
@@ -122,6 +122,8 @@ production.
   correctly.
 * (bug 45803) Whitespace within == Headline == syntax and within <hN> headings
   is now non-significant and not preserved in the HTML output.
+* Added Article::MissingArticleConditions hook to give extensions a chance to
+  hide their (unrelated) log entries.
 
 === Bug fixes in 1.21 ===
 * (bug 40353) SpecialDoubleRedirect should support interwiki redirects.
diff --git a/docs/hooks.txt b/docs/hooks.txt
index 1cd112b53e..d56886c93c 100644
--- a/docs/hooks.txt
+++ b/docs/hooks.txt
@@ -461,6 +461,13 @@ types.
 &$tokenTypes: supported token types in format 'type' => callback function
 used to retrieve this type of tokens.
 
+'Article::MissingArticleConditions': Before fetching deletion & move log entries
+to display a message of a non-existing page being deleted/moved, give extensions
+a chance to hide their (unrelated) log entries.
+&$conds: Array of query conditions (all of which have to be met; conditions will
+AND in the final query)
+$logTypes: Array of log types being queried
+
 'ArticleAfterFetchContent': After fetching content of an article from the
 database. DEPRECATED, use ArticleAfterFetchContentObject instead.
 $article: the article (object) being loaded from the database
diff --git a/includes/Article.php b/includes/Article.php
index 1619e09527..854f7f1113 100644
--- a/includes/Article.php
+++ b/includes/Article.php
@@ -1201,10 +1201,15 @@ class Article implements Page {
 
 		wfRunHooks( 'ShowMissingArticle', array( $this ) );
 
+		// Give extensions a chance to hide their (unrelated) log entries
+		$logTypes = array( 'delete', 'move' );
+		$conds = array( "log_action != 'revision'" );
+		wfRunHooks( 'Article::MissingArticleConditions', array( &$conds, $logTypes ) );
+
 		# Show delete and move logs
-		LogEventsList::showLogExtract( $outputPage, array( 'delete', 'move' ), $this->getTitle(), '',
+		LogEventsList::showLogExtract( $outputPage, $logTypes, $this->getTitle(), '',
 			array( 'lim' => 10,
-				'conds' => array( "log_action != 'revision'" ),
+				'conds' => $conds,
 				'showIfEmpty' => false,
 				'msgKey' => array( 'moveddeleted-notice' ) )
 		);
-- 
2.20.1