From 7c79996c6754f6d7dd67f43d279a63121ee71a9b Mon Sep 17 00:00:00 2001
From: Santiago Pastorino <santiago@wyeworks.com>
Date: Tue, 14 Feb 2012 21:51:18 -0200
Subject: Rack body respond to each and not to join

This fixes undef `to_str' for Rack::Chunked::Body when using
caches_action + streaming on an action

Closes #5027
---
 actionpack/lib/action_controller/caching/actions.rb | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'actionpack/lib/action_controller/caching')

diff --git a/actionpack/lib/action_controller/caching/actions.rb b/actionpack/lib/action_controller/caching/actions.rb
index 3b86a9a93a..a8aed4281b 100644
--- a/actionpack/lib/action_controller/caching/actions.rb
+++ b/actionpack/lib/action_controller/caching/actions.rb
@@ -102,8 +102,10 @@ module ActionController #:nodoc:
       end
 
       def _save_fragment(name, options)
-        content = response_body
-        content = content.join if content.is_a?(Array)
+        content = ""
+        response_body.each do |parts|
+          content << parts
+        end
 
         if caching_allowed?
           write_fragment(name, content, options)
-- 
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