Platform: Multiple feature modules requires unique action names

[Exocomp]

I'm using the latest available version 6.1.0 with Angular 6.0.3.

I looked around and could not find an answer to this. The issue I'm having is when I use multiple feature modules that have the same action name - when I trigger an action in one feature module it changes the state in the other feature module as well.

For ex.

1)

Feature Module 1 has action: SetName
Feature Module 2 has action: SetName

2)

Trigger Module 1 SetName, for ex:

this.store.dispatch(new Module1Actions.SetName('Mike'));

3) Check the state in Redux DevTools, name for Module1 and Module2 are updated to the same value set in the previous step.

[dummdidumm]

Use a prefix for all actions in that module and/or use case

[timdeschryver]

Exactly what @dummdidumm says. All reducers are invoked with the dispatched acation, meaning if you use the same action type it will trigger both changes. To solve this use a prefix, e.g. [Feat1 DetailsPage] SetName and [Feat2 OverviewPage] SetName.

In other words, your action types must be unique.

[Exocomp]

@dummdidumm
@timdeschryver

Thanks for the help!

If I understand correctly using a prefix would be a manual process for each action, I will go ahead with that. But It would be nice to have a global prefix you can register to each feature module that will add the prefix to each action automatically - just a thought.

[timdeschryver]

While it may seem like a good idea, I think it isn't.
This would prevent good action hygiene.

[Exocomp]

@timdeschryver thanks for that link. I just watched that video and learned a few things which I will apply to my project.

The way I was thinking about it regarding automatically applying a prefix by feature module could be thought of as an additional to what was described in the video. For example, if your actions are like [Feat1 DetailsPage] SetName, [Feat2 OverviewPage] SetName, the feature prefix of the action could simply be appended from what is registered once since it is going to be the same always for that feature module.