Fix forum deletions

app/models/forum_post.rb

@@ -128,12 +128,12 @@ class ForumPost < ActiveRecord::Base
   end
 
   def delete!
-    update_attribute(:is_deleted, true)
+    update_attributes({:is_deleted => true}, :as => CurrentUser.role)
     update_topic_updated_at_on_delete
   end
 
   def undelete!
-    update_attribute(:is_deleted, false)
+    update_attributes({:is_deleted => false}, :as => CurrentUser.role)
     update_topic_updated_at_on_undelete
   end
 

app/models/forum_topic.rb

@@ -153,10 +153,10 @@ class ForumTopic < ActiveRecord::Base
   end
 
   def delete!
-    update_attributes(:is_deleted => true)
+    update_attributes({:is_deleted => true}, :as => CurrentUser.role)
   end
 
   def undelete!
-    update_attributes(:is_deleted => false)
+    update_attributes({:is_deleted => false}, :as => CurrentUser.role)
   end
 end