Question

Need help figuring this out.

Have a product model:

class Product 
   :name 
    :short_description 
    :price 
    :cost 
    :visible 
    :new_service 
    :deleted 
    :category_id 
 end

Have a line item model. Pretty much copies product model except:

class LineItem
    :order_id 
    :customer_id
    :company_id
end

Now need to figure out how to add a Product Group which will consists of multiple products and carry all of the same attr as the product model. Normally I would do a joins table with :ids, but need the ability to edit the price and cost of each product in the group.

Stumped on this one.

Answer 1

class ProductGroup
  has_many :special_products
end

class SpecialProducts
  belongs_to :product
  belongs_to :product_group

  #attributes for overridden prices
  #delegate other attributes to product
  delegate :name, :to => :product, :allow_nil => true
end

class Product
  has_many :special_products
  has_many :product_groups, :through => :special_products
end