From fcb00d388c8afe25cdc8bd0fa5c762840921a8c9 Mon Sep 17 00:00:00 2001
From: Ivan Antropov <antropov.ivan@gmail.com>
Date: Sat, 9 Nov 2013 10:16:19 +0700
Subject: [PATCH] Add :encode_with for proper YAML serialization

---
 lib/arel/nodes/sql_literal.rb  | 4 ++++
 test/nodes/test_sql_literal.rb | 8 ++++++++
 2 files changed, 12 insertions(+)

diff --git a/lib/arel/nodes/sql_literal.rb b/lib/arel/nodes/sql_literal.rb
index 1bae8c9366..b43288b29c 100644
--- a/lib/arel/nodes/sql_literal.rb
+++ b/lib/arel/nodes/sql_literal.rb
@@ -5,6 +5,10 @@ module Arel
       include Arel::Predications
       include Arel::AliasPredication
       include Arel::OrderPredications
+
+      def encode_with(coder)
+        coder.scalar = self.to_s
+      end
     end
 
     class BindParam < SqlLiteral
diff --git a/test/nodes/test_sql_literal.rb b/test/nodes/test_sql_literal.rb
index 9deb8e5d8d..085c5dad6b 100644
--- a/test/nodes/test_sql_literal.rb
+++ b/test/nodes/test_sql_literal.rb
@@ -1,4 +1,5 @@
 require 'helper'
+require 'yaml'
 
 module Arel
   module Nodes
@@ -56,6 +57,13 @@ module Arel
           @visitor.accept(node).must_be_like %{ (foo = 1 AND foo = 2) }
         end
       end
+
+      describe 'serialization' do
+        it 'serializes into YAML' do
+          yaml_literal = SqlLiteral.new('foo').to_yaml
+          assert_equal('foo', YAML.load(yaml_literal))
+        end
+      end
     end
   end
 end