Support pluggable cache stores.

[#5486 state:committed] Signed-off-by: Jeremy Kemper <jeremy@bitsweat.net>
rails · Aug 28, 2010 · 90d4a19 · 90d4a19
1 parent 0f94ca3
commit 90d4a19
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diff --git a/activesupport/CHANGELOG b/activesupport/CHANGELOG
@@ -1,6 +1,6 @@
 *Rails 3.0.0 (unreleased)*
 
-* No changes
+* Pluggable cache stores: setting config.cache_store = "custom_store" will require 'active_support/cache/custom_store' and look for the CustomStore constant.  #5486 [Mike Perham]
 
 
 *Rails 3.0.0 [release candidate 2] (August 23rd, 2010)*

diff --git a/activesupport/lib/active_support/cache.rb b/activesupport/lib/active_support/cache.rb
@@ -58,7 +58,14 @@ def self.lookup_store(*store_option)
       case store
       when Symbol
         store_class_name = store.to_s.camelize
-        store_class = ActiveSupport::Cache.const_get(store_class_name)
+        store_class =
+          begin
+            require "active_support/cache/#{store}"
+          rescue LoadError
+            raise "Could not find cache store adapter for #{store} (#{$!})"
+          else
+            ActiveSupport::Cache.const_get(store_class_name)
+          end
         store_class.new(*parameters)
       when nil
         ActiveSupport::Cache::MemoryStore.new