Simplify user action make it more idiomatic

app/serializers/user_action_serializer.rb

@@ -0,0 +1,27 @@
+class UserActionSerializer < ApplicationSerializer
+
+  attributes :action_type, :created_at, :excerpt,
+             :avatar_template, :acting_avatar_template,
+             :slug, :topic_id, :target_user_id, :target_name,
+             :target_username, :post_number, :reply_to_post_number,
+             :username, :name, :user_id, :acting_username,
+             :acting_name, :acting_user_id
+
+
+  def excerpt
+    PrettyText.excerpt(object.cooked,300) if object.cooked
+  end
+
+  def avatar_template
+    User.avatar_template(object.email)
+  end
+
+  def acting_avatar_template
+    User.avatar_template(object.acting_email)
+  end
+
+  def slug
+    Slug.for(object.title)
+  end
+
+end