> validates_numericality_of :value, :only_integer => true, :allow_blank
> =>
> true # make sure that it's an integer
> validate :number_of_digits
> # make sure that we have five digits
>
> private
>
> def number_of_digits
> unless self.value.to_s.size == 5
> errors.add :value, "should be 5 digits"
> end
> end
>
> Good luck,
>
> -Conrad
Hi, Conrad. Thank you for the explanation. My workaround looks similar
to your code and works. I still have no clue why :if=>Proc.new{...}
didn't work though.
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