# STI and polyphormism

**URL:** <https://www.ruby-forum.com/t/sti-and-polyphormism/108321>\
**Category:** Rails\
**Created:** [July 2, 2007, 9:52am UTC](https://www.ruby-forum.com/t/sti-and-polyphormism/108321 "2007-07-02T09:52:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Florian\_ASSSSmann](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/48db29/32.png) [@Florian\_ASSSSmann](https://www.ruby-forum.com/u/Florian_ASSSSmann)\
**Post date:** [July 2, 2007, 9:52am UTC](https://www.ruby-forum.com/t/sti-and-polyphormism/108321/1 "2007-07-02T09:52:06Z")

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Hi,

i currently writing another ACL system for rails and I was wondering why  
BelongsToPolymorphicAssociation uses the base\_class for the  
polymorphed\_type.

I have to fetch the polymorphed object from db each time when I need its  
class data.

Ok, someone knows?

Sincerely  
Florian

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**Author:** ![Florian\_ASSSSmann](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/48db29/32.png) [@Florian\_ASSSSmann](https://www.ruby-forum.com/u/Florian_ASSSSmann)\
**Post date:** [July 2, 2007, 9:56am UTC](https://www.ruby-forum.com/t/sti-and-polyphormism/108321/2 "2007-07-02T09:56:07Z")

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Florian A�mann schrieb:

> Sincerely  
> Florian
> 
> >

I’m running Ruby 1.8.6 and Rails 1.2.3…