Avoid logging code if logger is nil. Closes #2881.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@3056 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/CHANGELOG

 *SVN*
 
-* Use Set instead of Array to speed up prototype helper include? calls.  #2880 [Stefan Kaes]
+* Performance tweaks: use Set instead of Array to speed up prototype helper include? calls.  Avoid logging code if logger is nil.  #2880, #2881 [Stefan Kaes]
 
 * MemCache store may be given multiple addresses.  #2869 [Ryan Carver <ryan@fivesevensix.com>]
 

actionpack/lib/action_view/partials.rb

@@ -54,7 +54,11 @@ def render_partial(partial_path, local_assigns = nil, deprecated_local_assigns =
       add_counter_to_local_assigns!(partial_name, local_assigns)
       add_object_to_local_assigns!(partial_name, local_assigns, object)
 
-      ActionController::Base.benchmark("Rendered #{path}/_#{partial_name}", Logger::DEBUG, false) do
+      if logger
+        ActionController::Base.benchmark("Rendered #{path}/_#{partial_name}", Logger::DEBUG, false) do
+          render("#{path}/_#{partial_name}", local_assigns)
+        end
+      else
         render("#{path}/_#{partial_name}", local_assigns)
       end
     end
@@ -111,10 +115,17 @@ def add_counter_to_local_assigns!(partial_name, local_assigns)
         counter_name = partial_counter_name(partial_name)
         local_assigns[counter_name] = 1 unless local_assigns.has_key?(counter_name)
       end
-      
+
       def add_object_to_local_assigns!(partial_name, local_assigns, object)
-        local_assigns[partial_name.intern] ||= object.is_a?(ActionView::Base::ObjectWrapper) ? object.value : object
-        local_assigns[partial_name.intern] ||= controller.instance_variable_get("@#{partial_name}")
+        local_assigns[partial_name.intern] ||= unwrap_object(object) || controller.instance_variable_get("@#{partial_name}")
+      end
+
+      def unwrap_object(object)
+        if object.is_a?(ActionView::Base::ObjectWrapper)
+          object.value
+        else
+          object
+        end
       end
   end
 end