Add README example using Vuex store modules

[hola-soy-milk]

Hi there!

Thanks for this helpful package.

I thought it might help to have an example showing how to set up shared mutations using a store module.

What do you think? 😄

[sadortun]

@xanf please merge

[tance77]

@ramonh Did this actually work for you? I tried to do this like your PR is documenting but my application just loses scope of the mutation.

[hola-soy-milk]

Hey @tance77!

That's right, it worked for me. Hrm. Is it possible your store modules aren't namespaced? I noticed that mine are.

[tance77]

They definitely are namespaced.

auth.js

export default {
    namespaced: true,

I wonder if it has to do with me dynamically importing my mutations as follows:

const predicates = [];
Object.keys(modules).forEach(module => {
    Object.keys(modules[module].mutations).forEach(mutation => {
        predicates.push(module + "/" + mutation);
    });
});

Sample console log of the predicates array

[tance77]

I figured it out. Your solution is correct. Thanks for the quick replies.

Had do do with something I commented out to accommodate this library.

[hola-soy-milk]

Oh hey, awesome! Nice one 👍

Glad it worked! It had been a while so I was digging into my code. :)