localdata不能用自己请求回来的数组赋值吗，会出现Error in nextTick: "TypeError: db.collection is not a function

分类：uni-app

uniCloud uniapp

<uni-data-picker placeholder="请选择分类" popup-title="请选择配件分类" localdata="dataTree" v-model="classes"
@change="onchange"
@nodeclick="onnodeclick"
@popupopened="onpopupopened"
@popupclosed="onpopupclosed"
>
</uni-data-picker>

// 获取配件分类
async getList() {
var data = {
allianceId: uni.getStorageSync('allianceId'),
params: {
brandId:""
}
}
var res = await this.$ajax.post('/api/base-house/cPartsType/getList', data)
if (res.code === "0000") {
this.dataTree = this.func(res.result);
},
//处理数据
func: function (arr) {
var key = 'children'
arr = arr.slice()
function toParse(arr) {
arr.forEach(function (item) {
if (item.children && Array.isArray(item.children)) {
item['children'] = item.children
item['value'] = item.partsTypeCode
item['text'] = item.partsTypeName
toParse(item[key])
}
})
return arr
}
return toParse(arr)
},