vuejs this.$refs 用于多个元素

Question

我有4个选择：

         <div class="form-row">
            <div class="form-group col-3">
                <label for="stateSelect">Status</label>
                <select v-model="filterState" @change="search()" data-live-search="true" class="form-control" ref="stateSelect" id="stateSelect">
                    <option value="">Alle Status</option>
                    <option v-for="assignmentState in assignmentStates" v-bind:value="assignmentState.state">
                        {{ assignmentState.state }}
                    </option>
                </select>
            </div>
            <div class="form-group col-3">
                <label for="loadingSelect">Beladungsort</label>
                <select v-model="filterLoading" @change="search()" data-live-search="true" class="form-control" ref="loadingSelect" id="loadingSelect">
                    <option value="">Alle Standorte</option>
                    <option v-for="location in locations" v-bind:value="location.id">
                        {{ location.name }}
                    </option>
                </select>
            </div>
            <div class="form-group col-3">
                <label for="unloadingSelect">Entladungsort</label>
                <select v-model="filterUnloading" @change="search()" data-live-search="true" class="form-control" ref="unloadingSelect" id="unloadingSelect">
                    <option value="">Alle Standorte</option>
                    <option v-for="location in locations" v-bind:value="location.id">
                        {{ location.name }}
                    </option>
                </select>
            </div>
            <div class="form-group col-3">
                <label for="carrierSelect">Spediteur</label>
                <select v-model="filterCarrier" @change="search()" data-live-search="true" class="form-control" ref="carrierSelect" id="carrierSelect">
                    <option value="">Alle Speditionen</option>
                    <option v-for="assignmentCarrier in assignmentCarriers" v-bind:value="assignmentCarrier.name">
                        {{ assignmentCarrier.name }}
                    </option>
                </select>
            </div>
        </div>

我必须使用选择器 function 刷新这个 dom 元素，才能在 vuejs 中像这样进行引导选择工作：

export default {
    name: "AssignmentList",
    data() { ....
},
updated() {
        $(this.$refs.stateSelect).selectpicker('refresh');
        $(this.$refs.loadingSelect).selectpicker('refresh')
        $(this.$refs.unloadingSelect).selectpicker('refresh')
        $(this.$refs.carrierSelect).selectpicker('refresh')
    }

是否可以总结这 4 个.selectpicker('refresh')语句？

或者是否可以对这些选择进行分组/标记，以便我可以一次刷新这些元素而无需单独键入每个元素。

Answer 1

只需在constants.js文件或其他文件中创建一个常量，然后将它们import到您的组件中。 像这样的东西：

const refTypes = Object.freeze({
  stateSelect: "stateSelect",
  loadingSelect: "loadingSelect",
  unloadingSelect: "unloadingSelect",
  carrierSelect: "carrierSelect"
});

然后在您的组件中有一个您调用的方法，该方法执行以下操作：

Object.values(refTypes).forEach((type) => {
  $(this.$refs[type].selectpicker('refresh');
});

我可能也会为'refresh'做同样的事情