Allow layouts with extension of .html.erb. Closes #8032 [Josh Knowles]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6516 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/CHANGELOG

 *SVN*
 
+* Allow layouts with extension of .html.erb.  Closes #8032 [Josh Knowles]
+
 * Change default respond_to templates for xml and rjs formats. [Rick]
 
   * Default xml template goes from #{action_name}.rxml => #{action_name}.xml.builder.

actionpack/lib/action_controller/layout.rb

@@ -190,7 +190,7 @@ def layout_list #:nodoc:
         def inherited_with_layout(child)
           inherited_without_layout(child)
           layout_match = child.name.underscore.sub(/_controller$/, '').sub(/^controllers\//, '')
-          child.layout(layout_match) unless child.layout_list.grep(%r{layouts/#{layout_match}\.[a-z][0-9a-z]*$}).empty?
+          child.layout(layout_match) unless child.layout_list.grep(%r{layouts/#{layout_match}(\.[a-z][0-9a-z]*)+$}).empty?
         end
 
         def add_layout_conditions(conditions)

actionpack/test/controller/layout_test.rb

@@ -28,6 +28,9 @@ module ControllerNameSpace
 class ControllerNameSpace::NestedController < LayoutTest
 end
 
+class MultipleExtensions < LayoutTest
+end
+
 class MabView
   def initialize(view)
   end
@@ -72,6 +75,13 @@ def test_namespaced_controllers_auto_detect_layouts
     assert_equal 'layouts/controller_name_space/nested', @controller.active_layout
     assert_equal 'controller_name_space/nested.rhtml hello.rhtml', @response.body
   end
+  
+  def test_namespaced_controllers_auto_detect_layouts
+    @controller = MultipleExtensions.new
+    get :hello
+    assert_equal 'layouts/multiple_extensions', @controller.active_layout
+    assert_equal 'multiple_extensions.html.erb hello.rhtml', @response.body.strip
+  end
 end
 
 class ExemptFromLayoutTest < Test::Unit::TestCase