jenkins-bot has submitted this change and it was merged.

Change subject: PrefixSearch: avoid looking for titles that don't exist
......................................................................


PrefixSearch: avoid looking for titles that don't exist

WikiPage::getRedirectTarget() can very easily return null. Don't
blow up when that happens.

Properly document PrefixSearch::getRedirectTarget() while we're
here.

Bug: T116029
Change-Id: Ib509e8e3e6ec04a787de3857a4b5ee9b01560559
---
M includes/PrefixSearch.php
1 file changed, 7 insertions(+), 1 deletion(-)

Approvals:
  EBernhardson: Looks good to me, approved
  jenkins-bot: Verified



diff --git a/includes/PrefixSearch.php b/includes/PrefixSearch.php
index 430b4b8..f36635b 100644
--- a/includes/PrefixSearch.php
+++ b/includes/PrefixSearch.php
@@ -258,12 +258,18 @@
                return $array;
        }
 
+       /**
+        * Get a redirect's destination from a title
+        * @param Title $title A title to redirect. It may not redirect or even 
exist
+        * @return null|string If title exists and redirects, get the 
destination's prefixed name
+        */
        private function getRedirectTarget( $title ) {
                $page = WikiPage::factory( $title );
                if ( !$page->exists() ) {
                        return null;
                }
-               return $page->getRedirectTarget()->getPrefixedText();
+               $redir = $page->getRedirectTarget();
+               return $redir ? $redir->getPrefixedText() : null;
        }
 
        /**

-- 
To view, visit https://gerrit.wikimedia.org/r/248935
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Gerrit-MessageType: merged
Gerrit-Change-Id: Ib509e8e3e6ec04a787de3857a4b5ee9b01560559
Gerrit-PatchSet: 1
Gerrit-Project: mediawiki/core
Gerrit-Branch: master
Gerrit-Owner: Chad <[email protected]>
Gerrit-Reviewer: EBernhardson <[email protected]>
Gerrit-Reviewer: jenkins-bot <>

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