fixes #989

app/models/wiki_page.rb

@@ -1,6 +1,7 @@
 class WikiPage < ActiveRecord::Base
   before_save :normalize_title
-  before_create :initialize_creator
+  before_validation :initialize_creator, :on => :create
+  before_validation :initialize_updater
   after_save :create_version
   belongs_to :creator, :class_name => "User"
   validates_uniqueness_of :title, :case_sensitive => false
@@ -125,10 +126,18 @@ class WikiPage < ActiveRecord::Base
       )
     end
   end
+  
+  def updater_name
+    User.id_to_name(updater_id)
+  end
 
   def initialize_creator
     self.creator_id = CurrentUser.user.id
   end
+  
+  def initialize_updater
+    self.updater_id = CurrentUser.user.id
+  end
 
   def post_set
     @post_set ||= PostSets::WikiPage.new(title, 1, 4)

app/views/wiki_pages/index.html.erb

@@ -16,7 +16,7 @@
           <% @wiki_pages.each do |wiki_page| %>
             <tr>
               <td class="tag-category-<%= wiki_page.category_name %>"><%= link_to wiki_page.pretty_title, wiki_page_path(wiki_page, :noredirect => 1) %></td>
-              <td><%= wiki_page.updated_at.strftime("%Y-%m-%d %I:%M") %> by <%= h link_to wiki_page.creator.name, user_path(wiki_page.creator) %></td>
+              <td><%= wiki_page.updated_at.strftime("%Y-%m-%d %I:%M") %> by <%= h link_to wiki_page.updater_name, user_path(wiki_page.updater_id) %></td>
             </tr>
           <% end %>
         </tbody>