Explicitly require active_record/query_cache before using it.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@7419 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 13 insertions, 11 deletions

diff --git a/actionpack/lib/action_controller/caching.rb b/actionpack/lib/action_controller/caching.rb
index 3434f5f9da..e6e42b9126 100644
--- a/actionpack/lib/action_controller/caching.rb
+++ b/actionpack/lib/action_controller/caching.rb
@@ -12,7 +12,10 @@ module ActionController #:nodoc:
   module Caching
     def self.included(base) #:nodoc:
       base.send(:include, Pages, Actions, Fragments)
-      base.send(:include, Sweeping, SqlCache) if defined?(ActiveRecord)
+      if defined?(ActiveRecord)
+        require 'active_record/query_cache'
+        base.send(:include, Sweeping, SqlCache)
+      end
 
       base.class_eval do
         @@perform_caching = true
@@ -656,20 +659,19 @@ module ActionController #:nodoc:
           end
       end
     end
-    
-    if defined?(ActiveRecord)     
-      module SqlCache
-        def self.included(base) #:nodoc:
+
+    module SqlCache
+      def self.included(base) #:nodoc:
+        if defined?(ActiveRecord) && ActiveRecord::Base.respond_to?(:cache)
           base.alias_method_chain :perform_action, :caching
         end
-        
-        def perform_action_with_caching
-          ActiveRecord::Base.cache do
-            perform_action_without_caching
-          end
+      end
+
+      def perform_action_with_caching
+        ActiveRecord::Base.cache do
+          perform_action_without_caching
         end
       end
     end
-    
   end
 end