On Sep 17, 2:10 pm, Eric <[email protected]> wrote:
> Thanks for the reply, and I did leave a part out of my schema. There
> will be other models inheriting from Asset, such that ultimately there
> will be (at least):
>
> class Asset < ActiveRecord::Base
> end
>
> class Sound < Asset
> belongs_to :user, :polymorphic => true
> end
>
> class Video < Asset
> belongs_to :user, :polymorphic => true
> end
>
> class Image < Asset
> belongs_to :user, :polymorphic => true
> end
>
> class User < ActiveRecord::Base
> has_many [:sounds,:videos,:images]
> end
>
> The idea will be to have @user.videos, @user.images, etc., so the STI
> will handle the media types, and the polymorphism is used for User's
> relationship to each. However, currently user_id is not being saved
> through the association, and even if I manually set user_id in Asset
> (and user_type, just for fun), Video.first.user comes up nil. So, STI
> is working as expected, but the association is broken in some way that
> leads me to wonder whether Asset needs some connection with User
> (unlikely, given the docs and commentary I've been able to find), or
> whether the STI classes need some more connections to the base class
> in order for User to pass through the STI.
>
Not sure what the issue you're experiencing is - I'll have to mock
some things up and try it. But I'll reiterate that the :polymorphic is
not needed on those belongs_to declarations. The record that they
point to (a User) is always in the same table. You wouldn't even need
it going the other way (some kind of User belongs_to :media, for
instance).
Oh, and that has_many isn't (AFAIK) valid syntax...
--Matt Jones
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