class Country
  include Mongoid::Document

  field :code, type:String
  field :title, type:String
  embeds_many :categories

end


class Category
  include Mongoid::Document

  field :title
  embedded_in :country, inverse_of:  :categories
  embeds_many :category_items
end

class CategoryItem
  include Mongoid::Document

  field :title, type:String
  field :pubdate, type:String
  field :image_name, type:String
  field :image_url, type:String
  field :keywords, type:String

  embedded_in :categories, inverse_of:  :category_items
end