refactored search

app/models/pool_version.rb

@@ -5,7 +5,25 @@ class PoolVersion < ActiveRecord::Base
   belongs_to :pool
   belongs_to :updater, :class_name => "User"
   before_validation :initialize_updater
-  scope :for_user, lambda {|user_id| where("updater_id = ?", user_id)}
+
+  module SearchMethods
+    def for_user(user_id)
+      where("updater_id = ?", user_id)
+    end
+    
+    def search(params)
+      q = scoped
+      return q if params.blank?
+      
+      if params[:updater_id]
+        q = q.for_user(params[:updater_id].to_i)
+      end
+      
+      q
+    end
+  end
+  
+  extend SearchMethods
   
   def initialize_updater
     self.updater_id = CurrentUser.id