Transforming validator

[logaan]

So when you've got a webform submitted it'll come through like {:name "Foo" :age "18"} and you need to transform :age to be a number before performing lt or gt checks against it. So a transforming validator could take those lt/gt validations and pass a parsed value to them. Eg:

(def as-int
  (transformer
   :validator (matches #"\d+"))
   :parser    Integer/parseInt}))

(attr :age (as-int (greater-than 17)))