Question about handling an action in both components and controllers

[cfcommando]

I want some buttons to toggle their images when tapped, and I've implemented that by updating the component's state. However, I also want to send an action upstream to a Controller which will handle the server work.

Concretely:

|LinkComponentController    <– does the heavy lifting
|LinkComponent
\___LinkVoteComponent      <– updates its own UI, holds the voting state
\___Link*Component         <– etc - other components which also get the LinkComponentController to do stuff

(where a Link is basically analogous to a Story in Facebook terms)

If I implement a LinkVoteComponentController, is it kosher for that to call [self.component updateState:...]*? Do I call CKComponentActionSend from the Component? Or am I barking up the wrong responder tree?

* currently, I just implement actions in the LinkVoteComponent directly, and update the state, with no server-side code implemented. Trying to find a way to avoid having to bake that into the Component.

Basically, the question boils down to, in Facebook terms: How do I structure a Story-like component to handle an action similar to liking a Story?

[cfcommando]

Hmm, actually, I discovered that the reason I thought CKComponentActionSend was not a viable solution was because I called it immediately after updateState, not realizing that updateState was synchronously unmounting the view, causing the crash due to an assert on account of nextResponder==nil. It might be worth calling out in the docs (http://componentkit.org/docs/state.html) that updating the state can cause a synchronous unmount and therefore action sends should occur before state updates in this situation.

Sorry for the noise.

[adamjernst]

This is really a bug with updateState that we plan to address shortly. It shouldn't synchronously unmount; instead that should be deferred to the end of the run loop. Sorry about that.

[cfcommando]

Thanks!

Would it be appropriate for me to file an issue so that I can track the progress of that?

[adamjernst]

Sure.