You can now use cache in instance hierachies. This allows ActiveRecord::Base.cache { } usage to cache everything

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6179 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 15 insertions, 3 deletions

diff --git a/activerecord/lib/active_record/query_cache.rb b/activerecord/lib/active_record/query_cache.rb
index 415b25e096..e2f5c1bd88 100644
--- a/activerecord/lib/active_record/query_cache.rb
+++ b/activerecord/lib/active_record/query_cache.rb
@@ -63,16 +63,28 @@ module ActiveRecord
       def query_caches
         (Thread.current[:query_cache] ||= {})
       end
+      
+      def query_cache
+        if query_caches[self]
+          query_caches[self]
+        elsif superclass.respond_to?(:query_cache)
+          superclass.query_cache
+        end
+      end
+      
+      def query_cache=(cache)
+        query_caches[self] = cache
+      end
             
       def cache        
-        query_caches[self] = QueryCache.new(connection)
+        self.query_cache = QueryCache.new(connection_without_query_cache)
         yield
       ensure 
-        query_caches[self] = nil
+        self.query_cache = nil
       end        
       
       def connection
-        query_caches[self] || connection_without_query_cache
+        query_cache || connection_without_query_cache
       end
     end
   end