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@@ -4,7 +4,7 @@ Pacecar adds named_scope methods to ActiveRecord classes via database column int
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 == Usage
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-Assuming a database schema and simple model declaration...
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+Assuming a database schema...
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   class CreateSchema < ActiveRecord::Migration
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     def self.up
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@@ -22,12 +22,22 @@ Assuming a database schema and simple model declaration...
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         t.integer :owner_id
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         t.string :publication_state
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         t.string :post_type
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+        t.timestamps
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+      end
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+      create_table :comments, :force => true do |t|
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+        t.integer :user_id
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+        t.text :description
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+        t.timestamps
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       end
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     end
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   end
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+And some basic model declarations...
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+
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   class User < ActiveRecord::Base
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     has_many :posts, :as => :owner
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+    has_many :comments
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+    scopes_ranking :comments
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   end
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   class Post < ActiveRecord::Base
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@@ -39,7 +49,9 @@ Assuming a database schema and simple model declaration...
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     scopes_polymorph :owner
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   end
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-...which yields a number of named scope methods.
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+  class Comment < ActiveRecord::Base
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+    belongs_to :user
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+  end
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 = All columns
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@@ -127,6 +139,13 @@ Records which have an owner_type of User...
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   Post.for_owner_type(User)
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+= Associations
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+
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+Records with the most and least associated records...
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+
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+  User.maximum_comments
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+  User.minimum_comments
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+
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 = State columns
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 Records which are in a particular state, or not in a state...
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@@ -148,6 +167,10 @@ To get all users that have a first_name set, who are admins and approved more th
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   User.first_name_present.admin.approved_at_before(2.weeks.ago).by_first_name
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+To get the top 10 commenters...
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+
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+  User.maximim_comments.limited(10)
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+
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 = License
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 Pacecar is free software, and may be redistributed under the terms specified in the MIT-LICENSE file.

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@@ -1,11 +1,12 @@
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-require 'pacecar/helpers'
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 require 'pacecar/boolean'
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 require 'pacecar/datetime'
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 require 'pacecar/duration'
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+require 'pacecar/helpers'
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 require 'pacecar/limit'
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 require 'pacecar/order'
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 require 'pacecar/polymorph'
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 require 'pacecar/presence'
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+require 'pacecar/ranking'
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 require 'pacecar/search'
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 require 'pacecar/state'
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@@ -34,6 +35,7 @@ module Pacecar
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         include Pacecar::Order
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         include Pacecar::Polymorph
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         include Pacecar::Presence
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+        include Pacecar::Ranking
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         include Pacecar::Search
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         include Pacecar::State
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       end

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@@ -16,6 +16,12 @@ class CreateSchema < ActiveRecord::Migration
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       t.integer :owner_id
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       t.string :publication_state
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       t.string :post_type
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+      t.timestamps
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+    end
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+    create_table :comments, :force => true do |t|
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+      t.integer :user_id
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+      t.text :description
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+      t.timestamps
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     end
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   end
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 end
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@@ -24,6 +30,8 @@ CreateSchema.suppress_messages { CreateSchema.migrate(:up) }
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 class User < ActiveRecord::Base
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   has_many :posts, :as => :owner
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+  has_many :comments
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+  scopes_ranking :comments
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 end
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 class Post < ActiveRecord::Base
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   PUBLICATION_STATES = %w(Draft Submitted Rejected Accepted)
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@@ -33,3 +41,6 @@ class Post < ActiveRecord::Base
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   scopes_state :post_type, :with => TYPES
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   scopes_polymorph :owner
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 end
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+class Comment < ActiveRecord::Base
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+  belongs_to :user
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+end