来自Vuex Store的访问模块

Question

我有以下模块:

export const ProfileData = {
    state: {
        ajaxData: null;
    },
    getters: {/*getters here*/},
    mutations: {/*mutations here*/},
    actions: {/*actions here*/}
}

这个模块在我的全球商店注册:

import {ProfileData} from './store/modules/ProfileData.es6'
const store = new Vuex.Store({
    modules: {
       ProfileData: ProfileData
    }
});

我也使用了Vue.use(Vuex)并new Vue({ store: store})正确设置了商店.但是,当我尝试访问模块的ajaxData所属时ProfileData,在我的一个组件中this.$store.ProfileData.ajaxData,控制台显示undefined错误.同样适用于阅读this.$store.ProfileData或this.$store.ajaxData,虽然this.$store已定义,但我已经能够阅读它.我还看到在浏览器控制台中ProfileData添加到_modules商店属性的对象.

访问注册的模块我做错了Vuex什么？我怎样才能访问这些？

Answer 1

直接访问Vuex模块的状态

访问Module的本地状态的格式是$store.state.moduleName.propertyFromState.

所以你会用:

this.$store.state.ProfileData.ajaxData

演示:

const ProfileData = {
  state: {ajaxData: "foo"}
}
const store = new Vuex.Store({
  strict: true,
  modules: {
    ProfileData
  }
});
new Vue({
  store,
  el: '#app',
  mounted: function() {
  	console.log(this.$store.state.ProfileData.ajaxData)
  }
})

<script src="https://unpkg.com/vue/dist/vue.min.js"></script>
<script src="https://unpkg.com/vuex"></script>

<div id="app">
  <p>ajaxData: {{ $store.state.ProfileData.ajaxData }}</p>
</div>

模块的Getters,Actions和Mutators,如何直接访问它们？

这取决于它们是否是命名空间.见演示(评论中的解释):

const ProfileDataWithoutNamespace = {
  state: {ajaxData1: "foo1"},
  getters: {getterFromProfileDataWithoutNamespace: (state) => state.ajaxData1}
}
const ProfileDataWithNamespace = {
  namespaced: true,
  state: {ajaxData2: "foo2"},
  getters: {getterFromProfileDataWithNamespace: (state) => state.ajaxData2}
}
const store = new Vuex.Store({
  strict: true,
  modules: {
    ProfileDataWithoutNamespace,
    ProfileDataWithNamespace
  }
});
new Vue({
  store,
  el: '#app',
  mounted: function() {
    // state is always per module
  	console.log(this.$store.state.ProfileDataWithoutNamespace.ajaxData1)
    console.log(this.$store.state.ProfileDataWithNamespace.ajaxData2)
    // getters, actions and mutations depends if namespace is true or not
    // if namespace is absent or false, they are added with their original name
    console.log(this.$store.getters['getterFromProfileDataWithoutNamespace'])
    // if namespace is true, they are added with Namespace/ prefix
    console.log(this.$store.getters['ProfileDataWithNamespace/getterFromProfileDataWithNamespace'])
  }
})

<script src="https://unpkg.com/vue/dist/vue.min.js"></script>
<script src="https://unpkg.com/vuex"></script>

<div id="app">
  <p>Check the console.</p>
</div>