在父组件中,根据后台给的数据(数组),v-for生成子组件
<div class="exist">
<existProject :itemprop="item" v-for="(item, index) in getData" :key="index" :index="index" @click="sendIdTogetData(index)" v-show="true"></existProject>
</div>
子组件(existProject)
<template>
<!-- <transition name="el-zoom-in-center"> -->
<div class="existProjectBox" v-show="show2">
<div class="existContentBox">
<div class="existContent">
<div class="existTitle">{{itemprop.title}}</div>
<div class="stateBox">
<span class="state">{{ status_tit }}</span>
<span class="number" v-if="itemprop.status==2">收集份数:{{itemprop.asyncCount}}份</span>
</div>
<div class="tiemBox">
{{createtime}}
</div>
</div>
</div>
<div class="existButton">
<li v-if="itemprop.status==0" @click="turnEdit(itemprop.qid)">
<i class="icon icon-edit"></i>
<span>编辑</span>
</li>
<li v-if="itemprop.status==0" @click="turnSend(itemprop.qid)">
<i class="icon icon-send"></i>
<span>发布</span>
</li>
<li v-if="itemprop.status==2 ">
<i class="icon icon-data"></i>
<span>数据</span>
</li>
<!-- <li v-if="itemprop.status==2 ">
<i class="icon icon-data"></i>
<span>暂停</span>
</li>
<li v-if="itemprop.status==2 ">
<i class="icon icon-data"></i>
<span>终止</span>
</li> -->
<li @click="delItem(itemprop.qid)">
<i class="icon icon-other"></i>
<span>删除</span>
</li>
</div>
</div>
<!-- </transition> -->
</template>
<script>
import axios from 'axios'
export default {
data(){w
return{
createtime:'',
status_tit:'',
show2:true
}
},
props:['itemprop'],
methods:{
turnEdit(id){
debugger;
console.log(id)
axios.defaults.headers.common['token'] = JSON.parse(window.localStorage.getItem('token'))
axios.get('/question/'+id)
.then(response => {
console.log(response);
var obj = response.data.data;
var contents = obj.contents;
for(let i = 0; i < contents.length; i++){
obj.contents[i].component = this.$options.methods.initType(obj.contents[i].type)
}
console.log(obj)
window.localStorage.setItem('workInfoList', JSON.stringify(obj));
this.$router.push({
path: '/edit',
query: {
id: id
}
})
window.location.reload()
})
.catch(error => {
console.log(error)
})
},
turnSend(id){
debugger;
console.log(id)
axios.defaults.headers.common['token'] = JSON.parse(window.localStorage.getItem('token'))
axios.get('/question/'+id)
.then(response => {
console.log(response);
var obj = response.data.data;
console.log(obj)
window.localStorage.setItem('workInfoList', JSON.stringify(obj));
this.$router.push({
path: '/sendProject',
query: {
id: id
}
})
window.location.reload()
})
.catch(error => {
console.log(error)
})
},
delItem(id){
this.$confirm('此操作将删除该文件进入草稿箱, 是否继续?', '提示', {
confirmButtonText: '确定',
cancelButtonText: '取消',
type: 'warning'
})
.then(() => {
axios.defaults.headers.common['token'] = JSON.parse(window.localStorage.getItem('token'))
axios.delete('/question/'+id)
.then(response => {
console.log(response)
// this.show2 = false
this.$parent.getPage();
})
})
.catch(error => {
console.log(error)
})
},
initType(str){
switch(str){
case 1:return 'Radio';
case 2:return 'check';
case 3:return 'gapFill';
case 4:return 'level';
case 5:return 'photoInput';
case 6:return 'Rate';
case 7:return 'remark';
case 8:return 'selectChoice';
case 9:return 'sort';
case 10:return 'tableNumber';
case 11:return 'temp';
}
},
},
mounted(){
// console.log(this.itemprop.createTime)
var transformTime = new Date(this.itemprop.createTime)
this.createtime = transformTime.toLocaleString();
console.log(this.createtime)
},
}
</script>
因为有多条数据,所以有分页处理,在第一页中数据显示正常,但是在获得第二页数据并赋值给父组件的data后,子组件的信息保留的还是第一页的信息
解决方法,使用watch深度监听 watch:{
itemprop:{
handler(n,o){
console.log(this.itemprop);
var status = this.itemprop.status;
var showCondition = this.itemprop.showCondition;
// debugger;
this.status_tit = (function(status,showCondition) {
if(status==0) {
return '未发布';
}
if(status==2 && showCondition==1)
{
// 已发布
return '收集中';
}
if(status==2 &&showCondition==0)
{
// 暂停
return '已暂停';
}
if(status==2 &&showCondition==-1) {
// 终止
return '已终止';
}
if(status==2 &&showCondition==2) {
// 问卷发布结束
return '已结束';
}
})(status,showCondition)
},
deep:true,
immediate:true,
}
}
watch可以监听子组件的数据变化,数组或者对象要用深度监听,字符串什么的不用深度监听,这样就可以在分页切换数据后,就不会保留原有的信息,而是新的信息了
循环中子组件不更新问题 解决方法这是Element-UI的一个bug,解决方案是从el-table中增加一个row-key属性,并为row-key设置一个能唯一标识的字段名。
1.这个可以是数据库的id字段
<el-table row-key="_id" ></el-table>
2.给table增加一个随机数的key
<el-table :key="Math.random()" ></el-table>
以上为个人经验,希望能给大家一个参考,也希望大家多多支持软件开发网。