validate_numericality_of 'property quantity, :type => Fixnum' not as expected

[michaelkirk]

I have a form with a text field, for which I'd like to validate the contents as numerical.

Unfortunately, properties defined with a type are typecast on assignment (this is couch_potato behavoir, I believe). So if I assign a string to a property of type Fixnum, the value is typecast (meaninglessly) to 0.

class Product 
  include SimplyStored::Couch
  include Validatable
  property :quantity, :type => Fixnum
  validates_numericality_of :quantity
end

p= Product.new(:quantity => "not a number")
p.valid? # => true
p.quantity # => 0

Has anyone else come across this? Any advice on how to handle this? It seems like it might be reasonable behavior from the perspective of couch_potato, which has something like 'statically typed' attributes. But it certainly doesn't make sense in the context of validations.

[jweiss]

I've recently also run into this and the problem is as you said that CouchPotato casts on assignment. I'll see that I talk to Alex of CouchPotato. The only good place to fix this is in CouchPotato.