From d59426e4222ecf7e4dedf24be3bfa909d8e027da Mon Sep 17 00:00:00 2001
From: Chris Olstrom <chris@olstrom.com>
Date: Mon, 22 Aug 2016 13:23:19 -0700
Subject: [PATCH 1/2] Fix missing dependency in gemspec

`activemodel-serializers-xml` is required for this gem to load, but is not currently included in `activemodel`. It was extracted for ActiveModel v5.x.

Either adding it to the dependencies, or applying a `~> 4.2` constraint to the `activemodel` dependency resolves this. I've opted for the former in this patch.
---
 related.gemspec | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/related.gemspec b/related.gemspec
index bad6875..d209395 100644
--- a/related.gemspec
+++ b/related.gemspec
@@ -24,4 +24,5 @@ Gem::Specification.new do |s|
   s.add_dependency('redis',  '> 2.0.0')
   s.add_dependency('redis-namespace',  '> 0.8.0')
   s.add_dependency('activemodel')
-end
\ No newline at end of file
+  s.add_dependency('activemodel-serializers-xml')
+end

From 365196cbb491e767e0ddbe17723f83da66934e61 Mon Sep 17 00:00:00 2001
From: Chris Olstrom <chris@olstrom.com>
Date: Mon, 22 Aug 2016 13:25:47 -0700
Subject: [PATCH 2/2] Add missing dependency to library

Adding it to the `gemspec` is half the battle, this is the other half. It needs to be required separately, as it has been extracted from ActiveModel.
---
 lib/related.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/related.rb b/lib/related.rb
index 77e353c..04e958a 100644
--- a/lib/related.rb
+++ b/lib/related.rb
@@ -1,6 +1,7 @@
 require 'redis'
 require 'redis/namespace'
 require 'active_model'
+require 'activemodel-serializers-xml'
 
 require 'related/version'
 require 'related/helpers'
@@ -51,4 +52,4 @@ def redis
     self.redis
   end
 
-end
\ No newline at end of file
+end