From 6d47c4cae51fe5fd04ef999de96f54138cae7f88 Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Mon, 24 Mar 2014 17:18:56 -0700
Subject: build quoted nodes in factory methods

---
 lib/arel/nodes.rb        |  9 ++++++++-
 lib/arel/nodes/node.rb   |  2 --
 lib/arel/predications.rb | 28 ++++++++++++++++------------
 3 files changed, 24 insertions(+), 15 deletions(-)

diff --git a/lib/arel/nodes.rb b/lib/arel/nodes.rb
index 3642958cf8..6ce1ed7dba 100644
--- a/lib/arel/nodes.rb
+++ b/lib/arel/nodes.rb
@@ -62,6 +62,13 @@ module Arel
       end
 
       def nil?; @val.nil?; end
+
+      def eql? other
+        self.class == other.class &&
+          self.val == other.val &&
+          self.attribute == other.attribute
+      end
+      alias :== :eql?
     end
 
     class Quoted < Arel::Nodes::Unary # :nodoc:
@@ -69,7 +76,7 @@ module Arel
 
     def self.build_quoted other, attribute = nil
       case other
-      when Arel::Nodes::Node, Arel::Attributes::Attribute
+      when Arel::Nodes::Node, Arel::Attributes::Attribute, Arel::Nodes::SelectStatement, Arel::Table, Arel::Nodes::BindParam
         other
       else
         case attribute
diff --git a/lib/arel/nodes/node.rb b/lib/arel/nodes/node.rb
index a3eadf7170..36e7628612 100644
--- a/lib/arel/nodes/node.rb
+++ b/lib/arel/nodes/node.rb
@@ -51,8 +51,6 @@ module Arel
 
         ::Arel::Visitors::DepthFirst.new(block).accept self
       end
-
-      def cast_reference?; false; end # :nodoc:
     end
   end
 end
diff --git a/lib/arel/predications.rb b/lib/arel/predications.rb
index 74411a0522..2ef4837548 100644
--- a/lib/arel/predications.rb
+++ b/lib/arel/predications.rb
@@ -1,7 +1,7 @@
 module Arel
   module Predications
     def not_eq other
-      Nodes::NotEqual.new self, other
+      Nodes::NotEqual.new self, Nodes.build_quoted(other, self)
     end
 
     def not_eq_any others
@@ -44,8 +44,10 @@ module Arel
         else
           Nodes::Between.new(self, Nodes::And.new([Nodes.build_quoted(other.begin, self), Nodes.build_quoted(other.end, self)]))
         end
-      else
+      when Array
         Nodes::In.new self, other.map { |x| Nodes.build_quoted(x, self) }
+      else
+        Nodes::In.new self, Nodes.build_quoted(other, self)
       end
     end
 
@@ -65,22 +67,24 @@ module Arel
         if other.begin == -Float::INFINITY && other.end == Float::INFINITY
           Nodes::In.new self, []
         elsif other.end == Float::INFINITY
-          Nodes::LessThan.new(self, other.begin)
+          Nodes::LessThan.new(self, Nodes.build_quoted(other.begin, self))
         elsif other.begin == -Float::INFINITY && other.exclude_end?
-          Nodes::GreaterThanOrEqual.new(self, other.end)
+          Nodes::GreaterThanOrEqual.new(self, Nodes.build_quoted(other.end, self))
         elsif other.begin == -Float::INFINITY
-          Nodes::GreaterThan.new(self, other.end)
+          Nodes::GreaterThan.new(self, Nodes.build_quoted(other.end, self))
         elsif other.exclude_end?
-          left  = Nodes::LessThan.new(self, other.begin)
-          right = Nodes::GreaterThanOrEqual.new(self, other.end)
+          left  = Nodes::LessThan.new(self, Nodes.build_quoted(other.begin, self))
+          right = Nodes::GreaterThanOrEqual.new(self, Nodes.build_quoted(other.end, self))
           Nodes::Or.new left, right
         else
-          left  = Nodes::LessThan.new(self, other.begin)
-          right = Nodes::GreaterThan.new(self, other.end)
+          left  = Nodes::LessThan.new(self, Nodes.build_quoted(other.begin, self))
+          right = Nodes::GreaterThan.new(self, Nodes.build_quoted(other.end, self))
           Nodes::Or.new left, right
         end
+      when Array
+        Nodes::NotIn.new self, other.map { |x| Nodes.build_quoted(x, self) }
       else
-        Nodes::NotIn.new self, other
+        Nodes::NotIn.new self, Nodes.build_quoted(other, self)
       end
     end
 
@@ -117,7 +121,7 @@ module Arel
     end
 
     def gteq right
-      Nodes::GreaterThanOrEqual.new self, right
+      Nodes::GreaterThanOrEqual.new self, Nodes.build_quoted(right, self)
     end
 
     def gteq_any others
@@ -129,7 +133,7 @@ module Arel
     end
 
     def gt right
-      Nodes::GreaterThan.new self, right
+      Nodes::GreaterThan.new self, Nodes.build_quoted(right, self)
     end
 
     def gt_any others
-- 
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