make Notification.for return a query, not evaluate.. also limit notifications pulled back to 25

app/controllers/application_controller.rb

@@ -17,7 +17,7 @@ class ApplicationController < ActionController::Base
       @aspect = nil
       @aspects = current_user.aspects.fields(:name)
       @aspects_dropdown_array = @aspects.collect{|x| [x.to_s, x.id]}
-      @notifications = Notification.for(current_user)
+      @notifications = Notification.for(current_user).limit(25).all
     end
   end
 

app/models/notification.rb

@@ -17,6 +17,6 @@ class Notification
   attr_accessible :object_id, :kind, :user_id, :person_id
 
   def self.for(user, opts={})
-    self.all(opts.merge(:user_id => user.id))
+    self.where(opts.merge(:user_id => user.id))
   end
 end