From 446870d8a6e5e7f92b06afb2f32936ec56483c4d Mon Sep 17 00:00:00 2001
From: George Scott <gscott@rumbleware.com>
Date: Wed, 28 Mar 2012 10:48:06 -0700
Subject: [PATCH] [aws|dns] Allow both Ruby and AWS style names for alias.

It was not possible to delete AWS DNS Alias Records because retrieved
records use CamelCase for alias target keys and change_resource_records
required ruby style names.  It now accepts both.
---
 lib/fog/aws/requests/dns/change_resource_record_sets.rb | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/fog/aws/requests/dns/change_resource_record_sets.rb b/lib/fog/aws/requests/dns/change_resource_record_sets.rb
index 0f07ae74b..d177fd33a 100644
--- a/lib/fog/aws/requests/dns/change_resource_record_sets.rb
+++ b/lib/fog/aws/requests/dns/change_resource_record_sets.rb
@@ -70,7 +70,10 @@ module Fog
 
               alias_target_tag = ''
               if change_item[:alias_target]
-                alias_target_tag += %Q{<AliasTarget><HostedZoneId>#{change_item[:alias_target][:hosted_zone_id]}</HostedZoneId><DNSName>#{change_item[:alias_target][:dns_name]}</DNSName></AliasTarget>}
+                # Accept either underscore or camel case for hash keys.
+                hosted_zone_id = change_item[:alias_target][:hosted_zone_id] || change_item[:alias_target][:HostedZoneId]
+                dns_name = change_item[:alias_target][:dns_name] || change_item[:alias_target][:DNSName]
+                alias_target_tag += %Q{<AliasTarget><HostedZoneId>#{hosted_zone_id}</HostedZoneId><DNSName>#{dns_name}</DNSName></AliasTarget>}
               end
 
               change_tags = %Q{<Change>#{action_tag}<ResourceRecordSet>#{name_tag}#{type_tag}#{ttl_tag}#{resource_tag}#{alias_target_tag}</ResourceRecordSet></Change>}