From 53bfaedaca5387bbc27a4ce04ea47367aaf4401a Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Fri, 30 Jul 2010 11:00:09 -0700
Subject: PERF caching engine, converting to an attr_reader

---
 lib/arel/algebra/relations/utilities/compound.rb | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

(limited to 'lib/arel')

diff --git a/lib/arel/algebra/relations/utilities/compound.rb b/lib/arel/algebra/relations/utilities/compound.rb
index 25f634ef78..80ac0b1351 100644
--- a/lib/arel/algebra/relations/utilities/compound.rb
+++ b/lib/arel/algebra/relations/utilities/compound.rb
@@ -2,13 +2,14 @@ module Arel
   class Compound
     include Relation
 
-    attr_reader :relation
+    attr_reader :relation, :engine
     delegate :joins, :join?, :inserts, :taken, :skipped, :name, :externalizable?,
              :column_for, :sources, :locked, :table_alias, :array,
              :to => :relation
 
     def initialize relation
       @relation    = relation
+      @engine      = relation.engine
       @attributes  = nil
       @wheres      = nil
       @groupings   = nil
@@ -32,9 +33,5 @@ module Arel
     def unoperated_rows
       relation.call.collect { |row| row.bind(self) }
     end
-
-    def engine
-      relation.engine
-    end
   end
 end
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