diff --git a/actionpack/lib/action_controller/record_identifier.rb b/actionpack/lib/action_controller/record_identifier.rb
index 22dbc8bbc5..643ff7e5f4 100644
--- a/actionpack/lib/action_controller/record_identifier.rb
+++ b/actionpack/lib/action_controller/record_identifier.rb
@@ -33,11 +33,17 @@ module ActionController
 
     # Returns plural/singular for a record or class. Example:
     #
-    #   partial_path(post)   # => "posts/post"
-    #   partial_path(Person) # => "people/person"
-    def partial_path(record_or_class)
+    #   partial_path(post)                   # => "posts/post"
+    #   partial_path(Person)                 # => "people/person"
+    #   partial_path(Person, "admin/games")  # => "admin/people/person"
+    def partial_path(record_or_class, controller_path = nil)
       klass = class_from_record_or_class(record_or_class)
-      "#{klass.name.tableize}/#{klass.name.demodulize.underscore}"
+
+      if controller_path && controller_path.include?("/")
+        "#{File.dirname(controller_path)}/#{klass.name.tableize}/#{klass.name.demodulize.underscore}"
+      else
+        "#{klass.name.tableize}/#{klass.name.demodulize.underscore}"
+      end
     end
 
     # The DOM class convention is to use the singular form of an object or class. Examples:
diff --git a/actionpack/lib/action_view/partials.rb b/actionpack/lib/action_view/partials.rb
index a708ecb3fb..6b294be6bd 100644
--- a/actionpack/lib/action_view/partials.rb
+++ b/actionpack/lib/action_view/partials.rb
@@ -119,7 +119,7 @@ module ActionView
             ""
           end
         else
-          render_partial(ActionController::RecordIdentifier.partial_path(partial_path), partial_path, local_assigns)
+          render_partial(ActionController::RecordIdentifier.partial_path(partial_path, controller.class.controller_path), partial_path, local_assigns)
         end
       end
 
@@ -147,7 +147,7 @@ module ActionView
         templates = Hash.new
         i = 0
         collection.map do |element|
-          partial_path = ActionController::RecordIdentifier.partial_path(element)
+          partial_path = ActionController::RecordIdentifier.partial_path(element, controller.class.controller_path)
           template = templates[partial_path] ||= ActionView::PartialTemplate.new(self, partial_path, nil, local_assigns)
           template.counter = i
           i += 1
diff --git a/actionpack/test/activerecord/render_partial_with_record_identification_test.rb b/actionpack/test/activerecord/render_partial_with_record_identification_test.rb
index 32b26206c3..ed10e72953 100644
--- a/actionpack/test/activerecord/render_partial_with_record_identification_test.rb
+++ b/actionpack/test/activerecord/render_partial_with_record_identification_test.rb
@@ -1,49 +1,49 @@
 require 'active_record_unit'
 
+class RenderPartialWithRecordIdentificationController < ActionController::Base
+  def render_with_has_many_and_belongs_to_association
+    @developer = Developer.find(1)
+    render :partial => @developer.projects
+  end
+
+  def render_with_has_many_association
+    @topic = Topic.find(1)
+    render :partial => @topic.replies
+  end
+
+  def render_with_named_scope
+    render :partial => Reply.base
+  end
+
+  def render_with_has_many_through_association
+    @developer = Developer.find(:first)
+    render :partial => @developer.topics
+  end
+
+  def render_with_has_one_association
+    @company = Company.find(1)
+    render :partial => @company.mascot
+  end
+
+  def render_with_belongs_to_association
+    @reply = Reply.find(1)
+    render :partial => @reply.topic
+  end
+
+  def render_with_record
+    @developer = Developer.find(:first)
+    render :partial => @developer
+  end
+
+  def render_with_record_collection
+    @developers = Developer.find(:all)
+    render :partial => @developers
+  end
+end
+RenderPartialWithRecordIdentificationController.view_paths = [ File.dirname(__FILE__) + "/../fixtures/" ]
+
 class RenderPartialWithRecordIdentificationTest < ActiveRecordTestCase
   fixtures :developers, :projects, :developers_projects, :topics, :replies, :companies, :mascots
-
-  class RenderPartialWithRecordIdentificationController < ActionController::Base
-    def render_with_has_many_and_belongs_to_association
-      @developer = Developer.find(1)
-      render :partial => @developer.projects
-    end
-    
-    def render_with_has_many_association
-      @topic = Topic.find(1)
-      render :partial => @topic.replies
-    end
-    
-    def render_with_named_scope
-      render :partial => Reply.base
-    end
-    
-    def render_with_has_many_through_association
-      @developer = Developer.find(:first)
-      render :partial => @developer.topics
-    end
-    
-    def render_with_has_one_association
-      @company = Company.find(1)
-      render :partial => @company.mascot
-    end
-    
-    def render_with_belongs_to_association
-      @reply = Reply.find(1)
-      render :partial => @reply.topic
-    end
-    
-    def render_with_record
-      @developer = Developer.find(:first)
-      render :partial => @developer
-    end
-    
-    def render_with_record_collection
-      @developers = Developer.find(:all)
-      render :partial => @developers
-    end
-  end
-  RenderPartialWithRecordIdentificationController.view_paths = [ File.dirname(__FILE__) + "/../fixtures/" ]
   
   def setup
     @controller = RenderPartialWithRecordIdentificationController.new
@@ -84,3 +84,108 @@ class RenderPartialWithRecordIdentificationTest < ActiveRecordTestCase
     assert_equal mascot.name, @response.body
   end
 end
+
+class RenderPartialWithRecordIdentificationController < ActionController::Base
+  def render_with_has_many_and_belongs_to_association
+    @developer = Developer.find(1)
+    render :partial => @developer.projects
+  end
+
+  def render_with_has_many_association
+    @topic = Topic.find(1)
+    render :partial => @topic.replies
+  end
+
+  def render_with_has_many_through_association
+    @developer = Developer.find(:first)
+    render :partial => @developer.topics
+  end
+
+  def render_with_belongs_to_association
+    @reply = Reply.find(1)
+    render :partial => @reply.topic
+  end
+
+  def render_with_record
+    @developer = Developer.find(:first)
+    render :partial => @developer
+  end
+
+  def render_with_record_collection
+    @developers = Developer.find(:all)
+    render :partial => @developers
+  end
+end
+RenderPartialWithRecordIdentificationController.view_paths = [ File.dirname(__FILE__) + "/../fixtures/" ]
+
+class Game < Struct.new(:name, :id)
+  def to_param
+    id.to_s
+  end
+end
+
+module Fun
+  class NestedController < ActionController::Base
+    def render_with_record_in_nested_controller
+      render :partial => Game.new("Pong")
+    end
+
+    def render_with_record_collection_in_nested_controller
+      render :partial => [ Game.new("Pong"), Game.new("Tank") ]
+    end
+  end
+  NestedController.view_paths = [ File.dirname(__FILE__) + "/../fixtures/" ]
+
+  module Serious
+    class NestedDeeperController < ActionController::Base
+      def render_with_record_in_deeper_nested_controller
+        render :partial => Game.new("Chess")
+      end
+
+      def render_with_record_collection_in_deeper_nested_controller
+        render :partial => [ Game.new("Chess"), Game.new("Sudoku"), Game.new("Solitaire") ]
+      end
+    end
+    NestedDeeperController.view_paths = [ File.dirname(__FILE__) + "/../fixtures/" ]
+  end
+end
+
+class RenderPartialWithRecordIdentificationAndNestedControllersTest < ActiveRecordTestCase
+  def setup
+    @controller = Fun::NestedController.new
+    @request    = ActionController::TestRequest.new
+    @response   = ActionController::TestResponse.new
+    super
+  end
+
+  def test_render_with_record_in_nested_controller
+    get :render_with_record_in_nested_controller
+    assert_template 'fun/games/_game'
+  end
+
+  def test_render_with_record_collection_in_nested_controller
+    get :render_with_record_collection_in_nested_controller
+    assert_template 'fun/games/_game'
+  end
+
+end
+
+class RenderPartialWithRecordIdentificationAndNestedDeeperControllersTest < ActiveRecordTestCase
+  def setup
+    @controller = Fun::Serious::NestedDeeperController.new
+    @request    = ActionController::TestRequest.new
+    @response   = ActionController::TestResponse.new
+    super
+  end
+
+  def test_render_with_record_in_deeper_nested_controller
+    get :render_with_record_in_deeper_nested_controller
+    assert_template 'fun/serious/games/_game'
+  end
+
+  def test_render_with_record_collection_in_deeper_nested_controller
+    get :render_with_record_collection_in_deeper_nested_controller
+    assert_template 'fun/serious/games/_game'
+  end
+
+end
\ No newline at end of file
diff --git a/actionpack/test/controller/record_identifier_test.rb b/actionpack/test/controller/record_identifier_test.rb
index def8613215..12c1eaea69 100644
--- a/actionpack/test/controller/record_identifier_test.rb
+++ b/actionpack/test/controller/record_identifier_test.rb
@@ -57,6 +57,18 @@ class RecordIdentifierTest < Test::Unit::TestCase
     assert_equal expected, partial_path(Comment)
   end
 
+  def test_partial_path_with_namespaced_controller_path
+    expected = "admin/#{@plural}/#{@singular}"
+    assert_equal expected, partial_path(@record, "admin/posts")
+    assert_equal expected, partial_path(@klass, "admin/posts")
+  end
+
+  def test_partial_path_with_not_namespaced_controller_path
+    expected = "#{@plural}/#{@singular}"
+    assert_equal expected, partial_path(@record, "posts")
+    assert_equal expected, partial_path(@klass, "posts")
+  end
+
   def test_dom_class
     assert_equal @singular, dom_class(@record)
   end
@@ -100,4 +112,28 @@ class NestedRecordIdentifierTest < RecordIdentifierTest
     assert_equal expected, partial_path(@record)
     assert_equal expected, partial_path(Comment::Nested)
   end
+
+  def test_partial_path_with_namespaced_controller_path
+    expected = "admin/comment/nesteds/nested"
+    assert_equal expected, partial_path(@record, "admin/posts")
+    assert_equal expected, partial_path(@klass, "admin/posts")
+  end
+
+  def test_partial_path_with_deeper_namespaced_controller_path
+    expected = "deeper/admin/comment/nesteds/nested"
+    assert_equal expected, partial_path(@record, "deeper/admin/posts")
+    assert_equal expected, partial_path(@klass, "deeper/admin/posts")
+  end
+
+  def test_partial_path_with_even_deeper_namespaced_controller_path
+    expected = "even/more/deeper/admin/comment/nesteds/nested"
+    assert_equal expected, partial_path(@record, "even/more/deeper/admin/posts")
+    assert_equal expected, partial_path(@klass, "even/more/deeper/admin/posts")
+  end
+
+  def test_partial_path_with_not_namespaced_controller_path
+    expected = "comment/nesteds/nested"
+    assert_equal expected, partial_path(@record, "posts")
+    assert_equal expected, partial_path(@klass, "posts")
+  end
 end