malli 2023-11-19 | Slack Archive

FlavaDave00:11:44

Hello, I would like to define a schema with namespaced keywords and then coerce a map that does not have namespaced keywords into a valid map with the appropriate namespaced keywords. Something like 👇 Can anyone help me come up with a good way to do this?

(ns super.cool.namespace
    (:require
     [malli.core :as mc]
     [malli.error :as me]))

  (def Schema
    [:map
     [::foo :string]
     [::bar :into]])

  (def data {:foo "clojure"
             :bar 2})

  (mc/coerce Schma data ?)
  => {:super.cool.namespace/foo "clojure"
      super.cool.namespace/bar 2}

ikitommi09:11:14

Maybe something like this?

ikitommi09:11:38

I think it would be simpler if it just would create a transforming map in :compile

{:foo ::foo, :bar ::bar}

… so, no :ns declaration would be needed.

ikitommi09:11:06

maybe this could be a built-in transformer in malli, with both decode & encode?

ikitommi09:11:36

ping @UF41YH1CM

FlavaDave22:11:57

Thanks @U055NJ5CC that example worked for me. I agreed that needing the :ns key isn't ideal. I think that having a map could be helpful if you want to do something articulate. But wouldn't it be best to just be able to get the namespace from the namespace of the key?

2023-11-19

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