On Jul 20, 8:10 pm, Kendall Gifford <zettab...@gmail.com> wrote:
>
> I'm assuming this is because if #shapes *could* be/return a relation then
> said relation would really have to have the ability to map to _n_ seperate
> SQL select statements (one for each table that can possibly be a "child").
> As such, further filtering/sorting/offset/limit operations on such a
> relation would be hard, not make sense, or be impossible.
>
> Anyone more knowledgeable know if I'm wrong here?

You've pretty much hit the nail on the head - this issue is exactly
what the has_many_polymorphs plugin was created to handle. I can't
find a definitive repo for a version that works on Rails 3, though.

--Matt Jones

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