From 37654d12ae95f751a91167a68bfb8d1bfd168d9c Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Mon, 2 Mar 2015 11:01:07 -0800
Subject: ask the routes objects for its Rack env key

this centralizes the logic for determining the script name key and drops
object allocations when calling `engine_script_name` (which is called on
each `url_for`).
---
 railties/lib/rails/engine.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'railties/lib/rails')

diff --git a/railties/lib/rails/engine.rb b/railties/lib/rails/engine.rb
index e1d5caf790..fd37fd0457 100644
--- a/railties/lib/rails/engine.rb
+++ b/railties/lib/rails/engine.rb
@@ -513,7 +513,7 @@ module Rails
     def call(env)
       env.merge!(env_config)
       if env['SCRIPT_NAME']
-        env["ROUTES_#{routes.object_id}_SCRIPT_NAME"] = env['SCRIPT_NAME'].dup
+        env[routes.env_key] = env['SCRIPT_NAME'].dup
       end
       app.call(env)
     end
-- 
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