I think form me i should be something like this below because I need
different validations to each type of ads. Or in your example could i set
up this kind of different validations?
class Ad ActiveRecord::Base
validates_presence_of :name, :email, :price(?), :category_id(?)
:name
I create a Gist with my recent ideas: https://gist.github.com/1770515
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what are the other objects? What is it that has_and_belongs_to_many?
for polymorphic relationships you want to ask if more than one
So
class Ad
belongs_to :adable, :polymorphic = true
end
class Customer
has_many :ads, :as = :adable
end
class NewsPaper
has_many :ads, :as=:adable
end
At
STI , Single Table Inheritance (This structure is best used for
models that have identical, or very similar attributes )
trip AD regular AD
class RegularAd ActiveRecord::Base
end
class TripAd RegularAd
end
migration (Rails 3.1)
class CreateAds ActiveRecord::Migration
def change
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