商品增加销售专区

app/models/product_sale_type.rb

@@ -1,7 +1,6 @@
 class ProductSaleType < ActiveRecord::Base
     has_paper_trail
     self.table_name = 'product_sale_types'
-    has_ancestry
     has_many :products, :foreign_key => :sale_zone
     validates :name,presence:true