Validators composing

[alolis]

First of all, I wanna say that the author has done really good work with metis :) It really solved a lot of my issues.

I do have one question though. I have two validators which they are using the same validation rule and I am wondering if I can make the composition like this:

(defvalidator :limit-validator
  [:limit {:only-integer true}])

(defvalidator :items-validator
  [:limit :limit-validator]
  [:my-field :presence])

(defvalidator :another-validator
  [:limit :limit-validator]
  [:another-field :presence]) 

I know the above does not work, I am just trying to explain what am I trying to accomplish :)

[mylesmegyesi]

I've been struggling with the same problem myself. I've been considering how to solve this problem in the next version of metis, but there is no built in way yet. For the time being, one idea is:

(def limit-validations [:numericality {:only-integer true}])

(defvalidator :items-validator
  [:limit limit-validations]
  [:my-field :presence])

(defvalidator :another-validator
  [:limit limit-validations]
  [:another-field :presence]

What do you think?

[alolis]

It's not a bad work around if the shared validator is not used as a standalone validator which it happens to be the case I am dealing with. It will definitely be nice to see a complete solution to a future version of metis :)

In general though I must admit that you've tackled the problem of input validation pretty well :)

[mylesmegyesi]

Thank you! Expect to see a solution in the next version!