Clojurians Log v2

By using reg-sub-raw.

With the caveat that this is almost certainly a bad thing to do and a sign of a design problem ... you can do it in a variety of ways ... You could do this:

(reg-sub
  :query-id

  ;; signal function
  (fn [_ _] [re-frame/app-db])
  ;; computation function  

  (fn [[db] query-vec]
    ;; compute result
    ))

(reg-sub
  :app-db
  (fn [db _]  db ))

(reg-sub
  :query-id

  (fn [_ _] [subscribe([:app-db]])

  (fn [[db] query-vec]
    ;; compute result
    ))

I'd still use reg-sub-raw. :) Apart from "marking" the sub, it also enables you to refer to other subs conditionally and provide parameters based on computation without having to split every operation into its own sub. Kinda similar in that regard to how one might want to use reg-event-fx to avoid creating "util" event handlers.

Yeah I originally implemented a quick app-db signal sub like Mike suggested with a couple of validations but I definitely prefer reg-sub-raw