Extracted categories menu to a helper, and got rid of hrefs

app/controllers/wiki_controller.rb

@@ -294,13 +294,6 @@ class WikiController < ApplicationController
       @pages_in_category = PageSet.new(@web).by_name
       @set_name = 'the web'
     end
-    @category_links = @categories.map { |c| 
-      if @category == c
-        %{<span class="selected">#{c}</span>} 
-      else
-        %{<a href="?category=#{c}">#{c}</a>}
-      end
-    }
   end
 
   def parse_rss_params

app/helpers/application_helper.rb

@@ -50,4 +50,19 @@ module ApplicationHelper
     web.make_link(page_name, text, options.merge(:base_url => base_url))
   end
 
+  # Creates a menu of categories
+  def categories_menu
+    if @categories.empty?
+      ''
+    else 
+      "<div id=\"categories\">\n" +
+      '<strong>Categories</strong>:' +
+      '[' + link_to_unless_current('Any', :web => @web.address, :action => @action_name) + "]\n" +
+      @categories.map { |c| 
+        link_to_unless_current(c, :web => @web.address, :action => @action_name, :category => c)
+      }.join(', ') + "\n" +
+      '</div>'
+    end
+  end
+
 end

app/views/wiki/list.rhtml

@@ -1,12 +1,6 @@
 <% @title = "All Pages" %>
 
-<% unless @categories.empty? %>
-<div id="categories">
-  <strong>Categories</strong>: 
-  [<a href=".">Any</a>]
-  <%= @category_links.join(', ') %>
-</div>
-<% end %>
+<%= categories_menu unless @categories.empty? %>
 
 <div id="allPages" style="float: left; width: 280px; margin-right: 30px">
 <% unless @pages_that_are_orphaned.empty? && @page_names_that_are_wanted.empty? %>

app/views/wiki/recently_revised.rhtml

@@ -1,12 +1,6 @@
 <% @title = "Recently Revised" %>
 
-<% unless @categories.empty? %>
-<div id="categories">
-  <strong>Categories</strong>: 
-  [<a href=".">Any</a>]
-  <%= @category_links.join(', ') %>
-</div>
-<% end %>
+<%= categories_menu %>
 
 <% unless @pages_by_revision.empty? %>
   <% revision_date = @pages_by_revision.first.revised_on %>

test/functional/wiki_controller_test.rb

@@ -197,8 +197,6 @@ class WikiControllerTest < Test::Unit::TestCase
 
     assert_equal ['animals', 'trees'], r.template_objects['categories']
     assert_nil r.template_objects['category']
-    assert_equal ['<a href="?category=animals">animals</a>', '<a href="?category=trees">trees</a>'],
-        r.template_objects['category_links']
     assert_equal [@elephant, @home, @oak], r.template_objects['pages_in_category']
   end
 
@@ -281,7 +279,6 @@ class WikiControllerTest < Test::Unit::TestCase
     assert_nil r.template_objects['category']
     assert_equal [@home], r.template_objects['pages_in_category']
     assert_equal 'the web', r.template_objects['set_name']
-    assert_equal [], r.template_objects['category_links']
   end
   
   def test_recently_revised_with_categorized_page
@@ -300,8 +297,6 @@ class WikiControllerTest < Test::Unit::TestCase
         "Pages are not as expected: " +
         r.template_objects['pages_in_category'].map {|p| p.name}.inspect
     assert_equal 'the web', r.template_objects['set_name']
-    assert_equal ['<a href="?category=categorized">categorized</a>'], 
-        r.template_objects['category_links']
   end
 
   def test_recently_revised_with_categorized_page_multiple_categories
@@ -317,9 +312,6 @@ class WikiControllerTest < Test::Unit::TestCase
         "Pages are not as expected: " +
         r.template_objects['pages_in_category'].map {|p| p.name}.inspect
     assert_equal 'the web', r.template_objects['set_name']
-    assert_equal ['<a href="?category=animals">animals</a>', 
-        '<a href="?category=trees">trees</a>'], 
-        r.template_objects['category_links']
   end
 
   def test_recently_revised_with_specified_category
@@ -333,8 +325,6 @@ class WikiControllerTest < Test::Unit::TestCase
     assert_equal 'animals', r.template_objects['category']
     assert_equal [@elephant], r.template_objects['pages_in_category']
     assert_equal "category 'animals'", r.template_objects['set_name']
-    assert_equal ['<span class="selected">animals</span>', '<a href="?category=trees">trees</a>'], 
-      r.template_objects['category_links']
   end