refactored search

app/models/note_version.rb

@@ -2,6 +2,21 @@ class NoteVersion < ActiveRecord::Base
   before_validation :initialize_updater
   belongs_to :updater, :class_name => "User"
   scope :for_user, lambda {|user_id| where("updater_id = ?", user_id)}
+
+  def self.search(params)
+    q = scoped
+    return q if params.blank?
+    
+    if params[:updater_id]
+      q = q.where("updater_id = ?", params[:updater_id].to_i)
+    end
+    
+    if params[:post_id]
+      q = q.where("post_id = ?", params[:post_id].to_i)
+    end
+    
+    q
+  end
   
   def initialize_updater
     self.updater_id = CurrentUser.id