JTreeDict.vue
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<template>
<a-tree-select
allowClear
labelInValue
style="width: 100%"
:disabled="disabled"
:dropdownStyle="{ maxHeight: '400px', overflow: 'auto' }"
:placeholder="placeholder"
:loadData="asyncLoadTreeData"
:value="treeValue"
:treeData="treeData"
@change="onChange"
@search="onSearch">
</a-tree-select>
</template>
<script>
import { getAction } from '@/api/manage'
export default {
name: 'JTreeDict',
data(){
return {
treeData:[],
treeValue: null,
url_root:"/sys/category/loadTreeRoot",
url_children:"/sys/category/loadTreeChildren",
url_view:'/sys/category/loadOne',
}
},
props:{
value:{
type: String,
required: false
},
placeholder:{
type: String,
default: '请选择',
required: false
},
parentCode:{
type: String,
default: '',
required: false
},
field:{
type: String,
default: 'id',
required: false
},
root:{
type:Object,
required:false,
default:()=>{
return {
pid:'0'
}
}
},
async:{
type:Boolean,
default:false,
required:false
},
disabled:{
type:Boolean,
default:false,
required:false
}
},
watch:{
root:{
handler(val){
console.log("root-change",val)
},
deep:true
},
parentCode:{
handler(){
this.loadRoot()
}
},
value:{
handler(){
this.loadViewInfo()
}
}
},
created(){
this.loadRoot()
this.loadViewInfo()
},
model: {
prop: 'value',
event: 'change'
},
methods:{
loadViewInfo(){
if(!this.value || this.value=="0"){
this.treeValue = null
}else{
let param = {
field:this.field,
val:this.value
}
getAction(this.url_view,param).then(res=>{
if(res.status.statusCode == 0){
this.treeValue = {
value:this.value,
label:res.result.name
}
}
})
}
},
loadRoot(){
let param = {
async:this.async,
pcode:this.parentCode
}
getAction(this.url_root,param).then(res=>{
if(res.status.statusCode == 0){
this.handleTreeNodeValue(res.result)
console.log("aaaa",res.result)
this.treeData = [...res.result]
}else{
this.$message.error(res.message)
}
})
},
asyncLoadTreeData (treeNode) {
return new Promise((resolve) => {
if(!this.async){
resolve()
return
}
if (treeNode.$vnode.children) {
resolve()
return
}
let pid = treeNode.$vnode.key
let param = {
pid:pid
}
getAction(this.url_children,param).then(res=>{
if(res.status.statusCode == 0){
this.handleTreeNodeValue(res.result)
this.addChildren(pid,res.result,this.treeData)
this.treeData = [...this.treeData]
}
resolve()
})
})
},
addChildren(pid,children,treeArray){
if(treeArray && treeArray.length>0){
for(let item of treeArray){
if(item.key == pid){
if(!children || children.length==0){
item.leaf = true
}else{
item.children = children
}
break
}else{
this.addChildren(pid,children,item.children)
}
}
}
},
handleTreeNodeValue(result){
let storeField = this.field=='code'?'code':'key'
for(let i of result){
i.value = i[storeField]
i.isLeaf = (!i.leaf)?false:true
if(i.children && i.children.length>0){
this.handleTreeNodeValue(i.children)
}
}
},
onChange(value){
console.log(value)
this.$emit('change', value.value);
this.treeValue = value
},
onSearch(value){
console.log(value)
},
getCurrTreeData(){
return this.treeData
}
}
}
</script>