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2021-05-13 10:56:04 +08:00
<template>
<div>
<Cascader
:data="data"
:load-data="loadData"
change-on-select
@on-visible-change="handleChangeOnSelect"
@on-change="change"
></Cascader>
</div>
</template>
<script>
import * as API_Setup from "@/api/index.js";
export default {
data() {
return {
data: [],
selected: [],
id: 0,
changeOnSelect: false,
};
},
mounted() {
this.init();
},
props: ['addressId'],
methods: {
change(val, selectedData) {
/**
* @returns [regionId,region]
*/
this.$emit("selected", [
val,
selectedData[selectedData.length - 1].__label.split("/"),
]);
},
/**
* 动态设置change-on-select的值
* 当级联选择器弹窗展开时设置change-on-select为true即可以点选菜单选项值发生变化
* 当级联选择器弹窗关闭时设置change-on-select为false即能够设置初始值
*/
handleChangeOnSelect(value) {
this.changeOnSelect = value;
},
loadData(item, callback) {
item.loading = true;
API_Setup.getRegion(item.value).then((res) => {
if (res.result.length <= 0) {
item.loading = false;
this.selected = item;
/**
* 处理数据并返回
*/
} else {
res.result.forEach((child) => {
item.loading = false;
let data = {
value: child.id,
label: child.name,
loading: false,
children: [],
};
if (
child.level == "street" ||
item.label == "香港特别行政区" ||
item.label == "澳门特别行政区"
) {
item.children.push({
value: child.id,
label: child.name,
});
} else {
item.children.push(data);
}
});
this.selected = item;
callback();
}
});
},
init() {
API_Setup.getRegion(this.id).then((res) => {
let way = [];
res.result.forEach((item) => {
let data;
// 台湾省做处理
if (item.name == "台湾省") {
data = {
value: item.id,
label: item.name,
};
} else {
data = {
value: item.id,
label: item.name,
loading: false,
children: [],
};
}
way.push(data);
});
this.data = way;
});
},
},
};
</script>
<style scoped lang="scss">
</style>