add some custom as_json output to Story and User

app/models/story.rb

@@ -107,6 +107,18 @@ class Story < ActiveRecord::Base
     end
   end
 
+  def as_json(options = {})
+    h = super(:only => [
+      :short_id,
+      :title,
+      :url,
+      :comments_url,
+    ])
+    h[:submitter_user] = user
+    h[:description] = markeddown_description
+    h
+  end
+
   def assign_short_id
     10.times do |try|
       if try == 10
@@ -229,8 +241,6 @@ class Story < ActiveRecord::Base
   end
 
   def calculated_hotness
-    score = upvotes - downvotes
-
     order = Math.log([ score.abs, 1 ].max, 10)
     if score > 0
       sign = 1
@@ -245,6 +255,10 @@ class Story < ActiveRecord::Base
 
     return -(order + (sign * (self.created_at.to_f / window))).round(7)
   end
+
+  def score
+    upvotes - downvotes
+  end
   
   def vote_summary
     r_counts = {}

app/models/user.rb

@@ -30,6 +30,24 @@ class User < ActiveRecord::Base
   before_save :check_session_token
   after_create :create_default_tag_filters, :create_rss_token
 
+  def as_json(options = {})
+    h = super(:only => [
+      :id,
+      :username,
+      :is_admin,
+      :is_moderator,
+    ])
+    h[:avatar_url] = avatar_url
+    h
+  end
+
+  def avatar_url
+    "https://secure.gravatar.com/avatar/" <<
+      Digest::MD5.hexdigest(self.email.strip.downcase) << "?r=pg&d=" <<
+      CGI.escape(Rails.application.routes.url_helpers.root_url +
+      "images/1x1t.gif") << "&s=100"
+  end
+
   def check_session_token
     if self.session_token.blank?
       self.session_token = Utils.random_str(60)