Rails - Nov 2005 - HABTM, push_with_attributes, and validations

Is it possible to perform validations on HABTM associations?  That is, 
if I have a table like:
   person_id
   place_id
   comment

I want to ''push_with_attributes'' and set the comment field. 
Can I do a
validation on the comment field such as validates_presence_of?

Since the association doesn''t have a model, where does this validation 
go?

   Jake

-- 
Posted via http://www.ruby-forum.com/.

I think that the path of least resistence would be to introduce a
model object for the relation if you need to doing validation and
other model-like behaviour.

On 11/13/05, www-data <www-data-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
> Is it possible to perform validations on HABTM associations?  That is,
> if I have a table like:
>    person_id
>    place_id
>    comment
>
> I want to ''push_with_attributes'' and set the comment
field.  Can I do a
> validation on the comment field such as validates_presence_of?
>
> Since the association doesn''t have a model, where does this
validation
> go?
>
>    Jake
>
> --
> Posted via http://www.ruby-forum.com/.
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>

--
Cheers,

Peter Donald