Rails - Oct 2006 - Polymorphic Validations

Hi Everyone,

Ran into an interesting case last night, and I was hoping that someone
on the list here could give me some guidance.

I''ve got a Polymorphic association for Addresses (which can belong to
two different models).

The catch is, one model requires a strict, precise address, and the
other only requires a City, State and Postal Code.

I want to use :validates_presence_of :street, :city, :state, and
:postal_code, but only if the instance is being assigned to the model
requiring stricter address validation.

Any thoughts?

-Jared


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Jared wrote:
> I''ve got a Polymorphic association for Addresses (which can belong
to
> two different models).
>
> The catch is, one model requires a strict, precise address, and the
> other only requires a City, State and Postal Code.
>
> I want to use :validates_presence_of :street, :city, :state, and
> :postal_code, but only if the instance is being assigned to the model
> requiring stricter address validation.
You can pass an :if => :strict_address_required? parameter to each
relevant validates_presence_of call, and then define a method that
looks like:

def strict_address_required?
  if addressable_type == "Person"
    true
  else
    false
  end
end

Chris


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