On Jun 19, 2011, at 7:23 AM, Mauro wrote:
> In the model I have:
>
> validates :square_meters_public_land, :barrier_meters, :numericality
> => { :greater_than_or_equal_to => 0 }, :allow_nil => true
>
> but if, in the field, on create, I don't insert a value I have the
> error "field is not a number".
Include the :allow_blank option if the fields are not required.
I generally think about this in terms of "specifying a validation always
includes :required; if that's not what I want, I have to include :allow_blank".
cheers,
Bill
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