State not being updated

[formidablelabs]

State not being updated

[divmain]

Hi @KadoBOT, it is not possible to update child state from a parent effect. The idea is that a piece of state and the effects that transform it should be co-located. If a piece of state needs to live closer to the root of the component tree, so should the corresponding effect, and vice versa.

If I'm reading your example correctly, I would say that the isOpen state atom "belongs" to the Dashboard. It is updated from the grand-child <NavButtons /> and consumed by child <Dashboard />.

Generally speaking, if you want to access and/or transform a piece of state from more than one component in different parts of your application, the effect and state atom should be owned by the closest common ancestor of those components.

I hope that helps. Feel free to reach out again if I need to clarify or dig into anything in particular.

[KadoBOT]

So, I've figured that an effect doesn't know the state of its children, and that's why it's not working

TL;DR: Is it possible to update a child state from a parent effects?