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re-frame
https://github.com/Day8/re-frame/blob/master/docs/README.md
https://github.com/Day8/re-frame/blob/master/docs/External-Resources.md
achikin 2021-03-25T12:01:50.029300Z
(def db {:form {:entity-id 1}
...})
(reg-sub
::get-some-entity
:<- [:a lot]
:<- [:of]
:<- [:signals]
(fn [[yada yada yada] [_ entity-id]]
(some (really (complicated code))))
(reg-sub
::get-entity-from-form
(fn [db [_ form-path]]
???????)
(defn my-form []
(let [form-path :form
entity @(re-frame/subscrible [::get-entity-from-form form-path])]
[render-entity entity]))entity from the db which I can’t replicate as a function of db. Also I have a form stored in the db, which has that entity id inside it. I want a subscription which given a form path gives me back entity (marked with ??????? in the code above).
So, essentially what I want to do :
1. given path to form extract :entity-id
2. use that :entity-id as an input to ::get-some-entity and I want to do all of that inside subscriptions, without passing data through the form rendering.
Is that possible in re-frame?
p-himik 2021-03-25T13:00:05.029500Z
I'm pretty sure you can safely use @(subscribe ...) within the reg-sub handler.
Alternatively, use reg-sub-raw.
Adriaan Callaerts 2021-03-25T15:47:08.030700Z
Is there a way to check if a subscription is already registered given a query-id?
Adriaan Callaerts 2021-03-25T15:49:52.030800Z
I figure I could use the re-frame.registrar namespace functionality, but that feels like relying on internal api too much
p-himik 2021-03-25T15:54:33.031Z
It is internal. But I don't think there's any other way.