Pattern: Supply different "feature state" into the form reducer?

[mostl33]

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Hi there,

first: a thanks for this great library! it really save a lot of tedious work.

Is there a good pattern on how to get the state of another feature (= different ngrx feature module with a form) into the form reducer? I am working on a "rent" calculator which needs certain form values from another (different feature module) form to calculate another form field.

Thanks,

Lee

[Balastrong]

I would say you can use an effect in between.

1. You dispatch an action with the info you currently have in the payload.
2. An effect can use withLatestFrom to grab the info you need from the other module.
3. The effect dispatches a new action with all the that you need (previous payload + state data you just read).
4. Form reducer receives the second action and you have all the data you need.