Order bike brands and models alphabetically

app/models/bike_brand.rb

@@ -4,6 +4,8 @@ class BikeBrand < ActiveRecord::Base
   has_many :bikes
   has_many :bike_models
 
+  default_scope order('brand ASC')
+
   self.per_page = 15
 
   def models

app/models/bike_model.rb

@@ -1,9 +1,11 @@
 class BikeModel < ActiveRecord::Base
-  attr_accessible :model
+  attr_accessible :model, :bike_brand_id
 
   has_many :bikes
   belongs_to :bike_brand
 
+  default_scope order('model ASC')
+
   self.per_page = 15
 
   def brand