log a moderation when hats are granted, since we're open and all that

app/models/hat.rb

@@ -6,6 +6,8 @@ class Hat < ActiveRecord::Base
   validates :user, :presence => true
   validates :granted_by_user, :presence => true
 
+  after_create :log_moderation
+
   def to_html_label
     h = "<span class=\"hat\" title=\"Granted by " <<
       "#{self.granted_by_user.username} on " <<
@@ -26,4 +28,14 @@ class Hat < ActiveRecord::Base
 
     h.html_safe
   end
+
+  def log_moderation
+    m = Moderation.new
+    m.created_at = self.created_at
+    m.user_id = self.user_id
+    m.moderator_user_id = self.granted_by_user_id
+    m.action = "Granted hat \"#{self.hat}\"" + (self.link.present? ?
+      " (#{self.link})" : "")
+    m.save
+  end
 end

app/views/moderations/index.html.erb

@@ -7,7 +7,7 @@
   <tr>
     <th width="15%">Date/Time</th>
     <th width="10%">Moderator</th>
-    <th width="75%">Story/Comment/User, Changes, Reason</th>
+    <th width="75%">Story/Comment/User, Action, Reason</th>
   </tr>
   <% bit = 0 %>
   <% @moderations.each do |mod| %>
@@ -21,8 +21,13 @@
         <% elsif mod.comment %>
           <a href="<%= mod.comment.url %>">Comment on <%=
             mod.comment.story.title %></a>
-        <% elsif mod.user %>
-          User <%= mod.user.try(:username) %>
+        <% elsif mod.user_id %>
+          <% if mod.user %>
+            <a href="/u/<%= mod.user.username %>">User
+              <%= mod.user.username %></a>
+          <% else %>
+            User <%= mod.user_id %> (Deleted)
+          <% end %>
         <% end %></td>
     </tr>
     <tr class="row<%= bit %> <%= mod.reason.present?? "nobottom" : "" %>">