Question

I have the following:

class Item < ActiveRecord::Base
  # assets
  has_many :assets, :as => :assetable, :dependent => :destroy

class Asset < ActiveRecord::Base
  belongs_to :assetable, :polymorphic => true

And would like to be able to do:

a=Asset.find(5)
a.item  # no dice

How would I get the associated item starting with the asset?

thx

Answer 1

In order to get the associated item, you need to use the relationship name that you setup in the Asset class. Since you have declared this relationship as :assetable, you need to refer to the item as “assetable”.

Assuming you have your database setup correctly according to the Rails guide, you should be able to do the following:

a=Asset.find(5)
a.assetable