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has_one polymorphic is creating circular dependency with parent model
Reported by Gabriel Mazetto | May 2nd, 2011 @ 05:49 AM
Use this two models:
class Item < ActiveRecord::Base
belongs_to :itemable, :polymorphic => true end
class Product < ActiveRecord::Base
has_one :item, :as => :itemable, :dependent => destroy
accepts_nested_attributes_for :item end
now try to:
@product = Product.new(params[:product]) @product.build_item(params[:item]) @product.valid?
And you will get a error lacking the "item.itemable_id"
So, build_item is defining the correct itemable_type, but are not dealing with the id... I expect it to save "course" first, get it's id and them set it on itemable_id and then save "item".
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Gabriel Mazetto