107 lines
2.6 KiB
Plaintext
107 lines
2.6 KiB
Plaintext
<template>
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<a-cascader :fieldNames="{children:'children', label:'name', value: 'areaCode' }"
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:options="optionsData" :loadData="loadData" placeholder="请选择所属区域"
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allow-clear :disabled="disabled" v-model:value="selectedOptions" @change="handleChange"/>
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</template>
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<script setup lang="ts" name="china-area">
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import { ref,onMounted,computed,watch } from 'vue'
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import type { CascaderProps } from 'ant-design-vue';
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import {getCityByList} from "@/api/system/user";
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const emit = defineEmits(['update:modelValue', 'change']);
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const optionsData = ref([]);
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const props = defineProps({
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// 当前的值
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modelValue: [String,Array],
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// 类型 (二级联动，三级联动)
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type: {
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type: Number,
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default: 3,
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},
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// 是否禁用
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disabled: {
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type: Boolean,
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default: () => false,
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},
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});
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watch(
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() => props,
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() => {
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props && setData(props.modelValue);
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},
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{
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deep: true,
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},
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);
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const getCityData= async (pid:any)=> {
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const data = await getCityByList(pid)
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optionsData.value = data.map(item=>{
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item.isLeaf= false
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return item
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})
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}
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const changeFlag =ref(false)
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const selectedOptions = computed({
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get: () => {
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return props.modelValue;
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},
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set: (val) => {
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emit('update:modelValue', val);
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},
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});
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const setData=async(data)=>{
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if(changeFlag.value) return
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let index1 = findListChild(optionsData.value,data[0])
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let data1 = await getCityByList(data[0])
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optionsData.value[index1].children =data1
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let index2 = findListChild(data1,data[1])
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let data2 = await getCityByList(data[1])
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optionsData.value[index1].children[index2].children = data2
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let index3 = findListChild(data2,data[2])
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let data3 = await getCityByList(data[2])
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optionsData.value[index1].children[index2].children[index3].children =data3
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}
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const findListChild= (list:any, value:any)=>{
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let child = null
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let index = 0
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for (let i = 0; i < list.length; i++) {
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if (list[i].areaCode == value) {
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child = list[i]
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index = i
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break;
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}
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}
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return index
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}
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const loadData: CascaderProps['loadData'] = async (selectedOptions) => {
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const targetOption = selectedOptions[selectedOptions.length - 1];
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targetOption.loading = true;
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const data = await getCityByList(targetOption.areaCode)
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targetOption.loading = false;
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targetOption.children = [...data].map(item=>{
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item.isLeaf= (selectedOptions.length==props.type)
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return item
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})
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optionsData.value = [...optionsData.value];
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};
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const handleChange = (value1) => {
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changeFlag.value = true
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};
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onMounted(async () => {
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await getCityData(0)
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});
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</script>
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<style lang="less">
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.ant-cascader-menu{
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background-color: #ffffff;
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}
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</style>
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