app/models/Category.rb

class Category < ActiveRecord::Base  
  has_many :sub_categories
end
creation of categories ready 2015-01-14 07:29:44 +01:00			`class Category < ActiveRecord::Base`
created subcategories 2015-01-16 07:50:36 +01:00			`has_many :sub_categories`
creation of categories ready 2015-01-14 07:29:44 +01:00			`end`