From: Henry Van Styn <vanstyn@intellitree.com>
Date: Wed, 29 Oct 2014 13:25:33 +0000 (-0400)
Subject: Fix uninitialized warnings on empty hashes passed to join/prefetch
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=a7cd6baa494546f6c0716c70eac31626445d0a1f;p=dbsrgits%2FDBIx-Class-Historic.git

Fix uninitialized warnings on empty hashes passed to join/prefetch

(cherry-pick of 08eba48c)
---

diff --git a/.mailmap b/.mailmap
index 22615b3..ee01f0a 100644
--- a/.mailmap
+++ b/.mailmap
@@ -29,6 +29,7 @@ Gerda Shank <gshank@cpan.org>               <gerda.shank@gmail.com>
 Gianni Ceccarelli <dakkar@thenautilus.net>  <gianni.ceccarelli@net-a-porter.com>
 Gordon Irving <goraxe@cpan.org>             <goraxe@goraxe.me.uk>
 Hakim Cassimally <osfameron@cpan.org>       <hakim@vm-participo.(none)>
+Henry Van Styn <vanstyn@cpan.org>           <vanstyn@intellitree.com>
 Jason M. Mills <jmmills@cpan.org>           <jmmills@cpan.org>
 Jonathan Chu <milki@rescomp.berkeley.edu>   <milki@rescomp.berkeley.edu>
 Jose Luis Martinez <jlmartinez@capside.com> <jlmartinez@capside.com>
diff --git a/AUTHORS b/AUTHORS
index 6a9f6ef..4a56099 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -200,6 +200,7 @@ triode: Pete Gamache <gamache@cpan.org>
 typester: Daisuke Murase <typester@cpan.org>
 uree: Oriol Soriano <oriol.soriano@capside.com>
 uwe: Uwe Voelker <uwe@uwevoelker.de>
+vanstyn: Henry Van Styn <vanstyn@cpan.org>
 victori: Victor Igumnov <victori@cpan.org>
 wdh: Will Hawes <wdhawes@gmail.com>
 wesm: Wes Malone <wes@mitsi.com>
diff --git a/Changes b/Changes
index df010f4..b40acf1 100644
--- a/Changes
+++ b/Changes
@@ -7,6 +7,9 @@ Revision history for DBIx::Class
         - Fix updating multiple CLOB/BLOB columns on Oracle
         - Fix exception on complex update/delete under a replicated setup
           http://lists.scsys.co.uk/pipermail/dbix-class/2015-January/011903.html
+        - Fix uninitialized warnings on empty hashes passed to join/prefetch
+          https://github.com/vanstyn/RapidApp/commit/6f41f6e48 and
+          http://lists.scsys.co.uk/pipermail/dbix-class/2015-February/011921.html
 
     * Misc
         - Remove warning about potential side effects of RT#79576 (scheduled)
diff --git a/lib/DBIx/Class/ResultSet.pm b/lib/DBIx/Class/ResultSet.pm
index 9bc2812..e30e14c 100644
--- a/lib/DBIx/Class/ResultSet.pm
+++ b/lib/DBIx/Class/ResultSet.pm
@@ -3816,8 +3816,10 @@ sub _calculate_score {
 
   if (ref $b eq 'HASH') {
     my ($b_key) = keys %{$b};
+    $b_key = '' if ! defined $b_key;
     if (ref $a eq 'HASH') {
       my ($a_key) = keys %{$a};
+      $a_key = '' if ! defined $a_key;
       if ($a_key eq $b_key) {
         return (1 + $self->_calculate_score( $a->{$a_key}, $b->{$b_key} ));
       } else {