Question

我在这里I have event duplication after action was moved in store object问关于事件的重复和建议的决定似乎很好，但是当我回到这个问题之后，我也遇到了同样的问题成功消息重复项。在我的容器vue文件MainApp.vue中，设置了事件处理程序：

ItemSale

我使用click.prevent呼叫确认对话框：

<template>
   <body class="account-body">
   <v-dialog/>

   <MainHeader></MainHeader>
   <div class="content p-0 m-0" style="width: 100% !important; margin: auto !important;">
      <notifications group="wiznext_notification"/>
      <router-view></router-view>
   </div>
   </body>

</template>

<script>

    import {bus} from '../../app';
    import MainHeader from './MainHeader.vue';
    import { deleteFromUserListsKey, runDeleteFromUserLists } from "../../helpers/commonFuncs";

    export default {
        name: 'main-app',
        components: {MainHeader},
        created() {
            // console.log('resources/js/components/Horizontal/MainApp.vue Component created.')
        },
        mounted() {
            console.log('resources/js/components/Horizontal/MainApp.vue Component MOUNTED.')
            bus.$on('dialog_confirmed', (paramsArray) => {
                // alert( "resources/js/components/Horizontal/MainApp.vue dialog_confirmed  paramsArray::"+var_dump(paramsArray) )
                if (paramsArray.key == this.deleteFromUserListsKey(paramsArray.user_list_id)) {
                    this.runDeleteFromUserLists(paramsArray.user_list_id, paramsArray.user_id, paramsArray.index);
                }
            })
        },

        methods: {
            deleteFromUserListsKey, runDeleteFromUserLists
        }

    }

</script>

我的混合资源/js/appMixin.js中的方法被触发，并且如果用户选择确认，则会发出dialog_confirmed事件：

<div class="card-footer">
   <div class="float-right">
      <i :class="'mr-2 '+getHeaderIcon('delete')" @click.prevent="confirmDeleteUserList( nextUserList.id, currentLoggedUser.id,
      nextUserList.title, index );" title="Delete"></i>
   </div>

在我的商店资源/js/store.js中，OI定义了用于删除和触发事件的方法：

confirmMsg: function (question, paramsArray, title, bus) {
    this.$modal.show('dialog', {
        title: title,
        text: question,
        buttons: [
            {
                title: 'Yes',
                default: true,    // Will be triggered by default if 'Enter' pressed.
                handler: () => {
                    bus.$emit('dialog_confirmed', paramsArray);
                    this.$modal.hide('dialog')
                }
            },
            {
                title: '',       // Button title
                handler: () => {
                } // Button click handler
            },
            {
                title: 'Cancel'
            }
        ]
    })
},

在list.vue文件中，要从其中删除项目，我定义弹出消息：

userListDelete(context, paramsArray ) {
    axios({
        method: ( 'delete' ),
        url: this.getters.apiUrl + '/personal/user-lists/' + paramsArray.user_list_id,
    }).then((response) => {
        let L = this.getters.userLists.length
        for (var I = 0; I < L; I++) {
            if (response.data.id == this.getters.userLists[I].id) {
                this.getters.userLists.splice(this.getters.userLists.indexOf(this.getters.userLists[I]), 1)
                context.commit('refreshUserLists', this.getters.userLists);
                break;
            }
        }

        bus.$emit( 'onUserListDeleteSuccess', response );
    }).catch((error) => {
        bus.$emit('onUserListDeleteFailure', error);
    });

}, // userListDelete(context, paramsArray ) {

我在所有页面的安装事件中显示消息，并且看到MainApp.vue的安装事件仅在打开其他页面时触发一次请参阅控制台中的相关消息。谷歌搜索我发现了bus。$ off方法，但它无济于事，无论如何我有几条重复的消息，尤其是当我在不同页面之间时。

如何解决这些重复的消息？

谢谢！

Answer 1

我在以下位置找到了决定： Stop receiving events from destroyed child component

因此，创建/删除

之类的事件

created() {
    ...
    bus.$on('onUserListDeleteSuccess', (response) => {
        this.is_page_updating = false
        this.showPopupMessage("User lists", 'User\'s list was successfully deleted!', 'success');
    })

}, //  created() {

beforeDestroy(){
    bus.$off( 'onUserListDeleteSuccess' )
},

为我工作正常！

再次关于事件删除项的重复

1 个答案: