3 files changed, 13 insertions, 9 deletions
diff --git a/actionpack/lib/action_controller/base.rb b/actionpack/lib/action_controller/base.rb
index 6b5914c4dd..c6d28b492a 100755
--- a/actionpack/lib/action_controller/base.rb
+++ b/actionpack/lib/action_controller/base.rb
@@ -998,7 +998,7 @@ module ActionController #:nodoc:
       # As you can infer from the example, this is mostly useful for situations where you want to centralize dynamic decisions about the
       # urls as they stem from the business domain. Please note that any individual url_for call can always override the defaults set
       # by this method.
-      def default_url_options(options) #:doc:
+      def default_url_options(options = nil)
       end
 
       # Redirects the browser to the target specified in +options+. This parameter can take one of three forms:
diff --git a/actionpack/lib/action_controller/routing/optimisations.rb b/actionpack/lib/action_controller/routing/optimisations.rb
index 3e3a2225f0..cd4a423e6b 100644
--- a/actionpack/lib/action_controller/routing/optimisations.rb
+++ b/actionpack/lib/action_controller/routing/optimisations.rb
@@ -61,9 +61,9 @@ module ActionController
           # if they're using foo_url(:id=>2) it's one 
           # argument, but we don't want to generate /foos/id2
           if number_of_arguments == 1
-            "(!defined?(default_url_options) || default_url_options(nil).blank?) && defined?(request) && request && args.size == 1 && !args.first.is_a?(Hash)"
+            "(!defined?(default_url_options) || default_url_options.blank?) && defined?(request) && request && args.size == 1 && !args.first.is_a?(Hash)"
           else
-            "(!defined?(default_url_options) || default_url_options(nil).blank?) && defined?(request) && request && args.size == #{number_of_arguments}"
+            "(!defined?(default_url_options) || default_url_options.blank?) && defined?(request) && request && args.size == #{number_of_arguments}"
           end
         end
 
@@ -98,7 +98,7 @@ module ActionController
       # argument
       class PositionalArgumentsWithAdditionalParams < PositionalArguments
         def guard_condition
-          "(!defined?(default_url_options) || default_url_options(nil).blank?) && defined?(request) && request && args.size == #{route.segment_keys.size + 1} && !args.last.has_key?(:anchor) && !args.last.has_key?(:port) && !args.last.has_key?(:host)"
+          "(!defined?(default_url_options) || default_url_options.blank?) && defined?(request) && request && args.size == #{route.segment_keys.size + 1} && !args.last.has_key?(:anchor) && !args.last.has_key?(:port) && !args.last.has_key?(:host)"
         end
 
         # This case uses almost the same code as positional arguments, 
diff --git a/actionpack/lib/action_view/helpers/form_helper.rb b/actionpack/lib/action_view/helpers/form_helper.rb
index 63c5fd57aa..b8600fe445 100644
--- a/actionpack/lib/action_view/helpers/form_helper.rb
+++ b/actionpack/lib/action_view/helpers/form_helper.rb
@@ -614,23 +614,27 @@ module ActionView
         end
 
         def tag_name
-          "#{@object_name}[#{@method_name}]"
+          "#{@object_name}[#{sanitized_method_name}]"
         end
 
         def tag_name_with_index(index)
-          "#{@object_name}[#{index}][#{@method_name}]"
+          "#{@object_name}[#{index}][#{sanitized_method_name}]"
         end
 
         def tag_id
-          "#{sanitized_object_name}_#{@method_name}"
+          "#{sanitized_object_name}_#{sanitized_method_name}"
         end
 
         def tag_id_with_index(index)
-          "#{sanitized_object_name}_#{index}_#{@method_name}"
+          "#{sanitized_object_name}_#{index}_#{sanitized_method_name}"
         end
 
         def sanitized_object_name
-          @object_name.gsub(/[^-a-zA-Z0-9:.]/, "_").sub(/_$/, "")
+          @sanitized_object_name ||= @object_name.gsub(/[^-a-zA-Z0-9:.]/, "_").sub(/_$/, "")
+        end
+
+        def sanitized_method_name
+          @sanitized_method_name ||= @method_name.sub(/\?$/,"")
         end
     end