Passing only a single property through Vue store dispatch, rather than the entire

Question

Passing only a single property through Vue store dispatch, rather than the entire

Is it possible to dispatch just a single property to the vuex store instead of the entire object? The vuex docs do not appear to provide any information on this. Currently, I am storing objects in the following manner:

store.dispatch('currentUser', {
  memberData: 'fooBar'
});

Sometimes, I only need to retrieve and push a single value from the database into the store. Is there a way to achieve this?

UPDATE

I believe my question may have been unclear.

In reality, what I need is the ability to access a nested child property within memberData during dispatch in order to modify just one element of memberData. In all honesty, the response value itself is irrelevant and could be 'foo' or anything else.

javascript vue.js ecmascript-6 vuejs2 vuex

Answer 1

Answer №1

When exploring the documentation for dispatch, it becomes evident that the second argument, payload, can take on any form. It is not necessary for it to be an object-style dispatch nested within a property:

Dispatch:

store.dispatch('currentUser', response[0]);

Store:

state: {
    currentUser: undefined
  },
  mutations: {
    setCurrentUser(state, currentUser) {
      state.currentUser = currentUser;
    }
  },
  actions: {
    currentUser(context, payload) {
      context.commit('setCurrentUser', payload);
    }
  }

Mutation:

setCurrentUser(state, currentUser) {
    state.currentUser = currentUser;
  }

You can observe this concept in action through this example.

Update:

If your aim is to merge or update changes instead, you have the option of utilizing spread in object literals. This approach is also outlined in Vuex's documentation under Mutations Follow Vue's Reactivity Rules.

Dispatch:

store.dispatch('currentUser', { systemLanguage: response[0].systemLangId });

Store:

state: {
    memberData: { systemLanguage: 'foo' }
  },
  mutations: {
    updateCurrentUser(state, updates) {
      state.memberData = { ...state.memberData, ...updates };
    }
  },
  actions: {
    currentUser(context, payload) {
     context.commit('updateCurrentUser', payload);
    }
  }

An example showcasing this method is available for reference.

Hopefully, this information proves helpful!

Answer 2

When exploring the documentation for dispatch, it becomes evident that the second argument, payload, can take on any form. It is not necessary for it to be an object-style dispatch nested within a property:

Dispatch:

store.dispatch('currentUser', response[0]);

Store:

state: {
    currentUser: undefined
  },
  mutations: {
    setCurrentUser(state, currentUser) {
      state.currentUser = currentUser;
    }
  },
  actions: {
    currentUser(context, payload) {
      context.commit('setCurrentUser', payload);
    }
  }

Mutation:

setCurrentUser(state, currentUser) {
    state.currentUser = currentUser;
  }

You can observe this concept in action through this example.

Update:

If your aim is to merge or update changes instead, you have the option of utilizing spread in object literals. This approach is also outlined in Vuex's documentation under Mutations Follow Vue's Reactivity Rules.

Dispatch:

store.dispatch('currentUser', { systemLanguage: response[0].systemLangId });

Store:

state: {
    memberData: { systemLanguage: 'foo' }
  },
  mutations: {
    updateCurrentUser(state, updates) {
      state.memberData = { ...state.memberData, ...updates };
    }
  },
  actions: {
    currentUser(context, payload) {
     context.commit('updateCurrentUser', payload);
    }
  }

An example showcasing this method is available for reference.

Hopefully, this information proves helpful!

Passing only a single property through Vue store dispatch, rather than the entire

UPDATE

Answer №1

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