index.vue
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<template>
<!-- 运营主体选择 -->
<el-select
v-model="inputValue"
:placeholder="placeholder"
clearable
style="width: 100%"
@change="inputValueChange"
filterable
remote
:filter-method="filterFunction"
@visible-change="inputVisibleChange"
:loading="listLoading"
v-selectLoadMore="initMoreList"
:disabled="disabled"
>
<el-option
v-for="item in options"
:key="item.id"
:label="item.label"
:value="item.id"
>
</el-option>
</el-select>
</template>
<script>
import request from "@/utils/request";
import { getCompanyInfoList } from "@/api/baseData/company";
export default {
name: "el-company-select",
computed: {},
props: {
value: {
request: true,
type: String,
default: '',
},
isInput: { type: Boolean, default: false },
placeholder: { type: String, default: '请选择' },
disabled: { type: Boolean, default: false }
},
data() {
return {
inputValue: '',
options: [],
currentPage: 1,
total: 0,
listLoading: false,
searchVal: '', // 输入查询内容
searchVisibla: false, // 是否需要打开下拉时重新请求
searchBlur: false, // 是否输入
valid: true, // 防抖使用
timer: null, // 节流
}
},
created() {
this.loadList(true);
},
watch:{
value(val) {
this.initInputValue()
},
},
methods: {
async initInputValue() {
this.searchVisibla = true;
if(!this.searchBlur) {
this.listLoading = true;
await this.loadList(true, this.value);
};
this.inputValue = this.value;
this.searchBlur = false;
},
loadList(type, id) {
// type: true-替换 false-添加
if(!type && this.total < this.options.length) return;
let obj = {
currentPage: this.currentPage,
pageSize: 20,
sort: "desc",
sidx: "",
companyId: id,
companyName: this.searchVal,
}
getCompanyInfoList(obj).then((res) => {
let list = res.data.list.map(v => {
return { label: v.companyName, id: v.id}
})
let allList = type ? list : [...this.options, ...list];
this.options = _.uniqBy(allList, 'id');
this.total = res.data.pagination.total;
this.listLoading = false;
});
},
inputValueChange(val) {
this.inputValue = val;
this.$emit('input', val, 'change');
this.$emit('change', val, 'change');
},
inputValueBlur(val) {
this.searchBlur = true;
this.inputValue = val;
this.$emit('input', val, 'blur');
this.$emit('change', val, 'blur');
},
filterFunction(val) {
clearTimeout(this.timer);
this.timer = setTimeout(() => {
!this.isInput && this.inputValueBlur(val)
this.currentPage = 1;
this.searchVal = val;
this.loadList(true);
}, 300);
},
async inputVisibleChange(val) {
if(!val) return;
console.log(this.searchVal);
if(this.searchVal) {
this.searchVal = '';
this.currentPage = 1;
await this.loadList(true);
}
if(this.searchVisibla) {
await this.loadList(false);
this.searchVisibla = false;
}
},
initMoreList() {
if (this.valid) {
this.valid = false; // 关闭阀门
// 如果阀门已经打开，就继续往下
setTimeout(() => {
++this.currentPage;
this.loadList(false);
this.valid = true; // 执行完成后打开阀门
}, 300);
}
}
},
}
</script>