Add scope for default order

Author: nalabjp

app/models/dojo.rb

@@ -11,6 +11,8 @@ class Dojo < ApplicationRecord
   serialize :tags
   before_save { self.email = self.email.downcase }
 
+  scope :default_order, -> { order(prefecture_id: :asc) }
+
   validates :name,        presence: true, length: { maximum: 50 }
   validates :email,       presence: false
   validates :order,       presence: false