Added current_page?(options) method to check if the url_for options passed...

Added current_page?(options) method to check if the url_for options passed corresponds to the current page

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@645 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/lib/action_view/helpers/url_helper.rb

@@ -78,7 +78,7 @@ def link_to_image(src, options = {}, html_options = {}, *parameters_for_method_r
       # given block is yielded, if one exists). This is useful for creating link bars where you don't want to link 
       # to the page currently being viewed.
       def link_to_unless_current(name, options = {}, html_options = {}, *parameters_for_method_reference)
-        if url_for(options) == @request.request_uri
+        if current_page?(options)
           block_given? ?
             yield(name, options, html_options, *parameters_for_method_reference) :
             html_escape(name)
@@ -120,6 +120,11 @@ def mail_to(email_address, name = nil, html_options = {})
         end
       end
 
+      # Returns true if the current page uri is generated by the options passed (in url_for format).
+      def current_page?(options)
+        url_for(options) == @request.request_uri
+      end
+
       private
         def convert_confirm_option_to_javascript!(html_options)
           if html_options.include?(:confirm)