From 18dd16caeb272c1f09cf6c5c64b5a65bdb773296 Mon Sep 17 00:00:00 2001
From: Mike Perham <mperham@gmail.com>
Date: Sat, 28 Aug 2010 14:46:15 -0700
Subject: [PATCH] Issue #5486 Dynamic cache store support
---
 activesupport/lib/active_support/cache.rb |   12 +++++++++++-
 1 files changed, 11 insertions(+), 1 deletions(-)

diff --git a/activesupport/lib/active_support/cache.rb b/activesupport/lib/active_support/cache.rb
index 8153dd5..9519c66 100644
--- a/activesupport/lib/active_support/cache.rb
+++ b/activesupport/lib/active_support/cache.rb
@@ -58,7 +58,17 @@ module ActiveSupport
       case store
       when Symbol
         store_class_name = store.to_s.camelize
-        store_class = ActiveSupport::Cache.const_get(store_class_name)
+        store_class = nil
+        begin
+          store_class = ActiveSupport::Cache.const_get(store_class_name)
+        rescue NameError
+          begin
+            require "active_support/cache/#{store.to_s}"
+            store_class = ActiveSupport::Cache.const_get(store_class_name)
+          rescue LoadError
+            raise "Could not find cache store adapter for #{store.to_s} (#{$!})"
+          end
+        end
         store_class.new(*parameters)
       when nil
         ActiveSupport::Cache::MemoryStore.new
-- 
1.7.1