uni-app微信小程序属性为0
前几日在封装一个组件的时候，接收数据的时候遇到一个属性等于0，但是，前端死活不显示
这里是有值的，但
到了前端就没有了，卧槽，太神奇了是不是。打印一下看看
打印出来传入值竟然是undefined而不是0，一定是闹鬼了。。。
最后再不断定位错误的时候，发现是这里的毛病
post: item.post || '', // 添加 post 属性，默认值为空字符串
原因是当数值为0的时候自己就默认是false
0在布尔上下文中被认为是假值，因此 item.post||‘’ 会在 item.post 为 0 时返回空字符串。所以说为了保留0，需要改成
item.post !== undefined ? item.post : ''
来确保仅在 item.post 是 undefined 时返回空字符串。
下面贴一下源代码
<template>
<view>
<!-- 绑定个人信息 -->
<u-popup :show="localBindCompShow" @close="onClickOverlayClose" @open="localBindCompShow =true" mode="center"
round="20" :closeOnClickOverlay="true">
<view class="bindCompCard">
<view class="header-container">
<view class='header-button'>
<u-button type="info" size="5" icon="close" @click="onClickOverlayClose" :plain="true"
:hairline="true"></u-button>
</view>
<view class="header-text">绑定企业信息</view>
<u-tabs :list="bindCompTabList" @click="selectTab" class="tabs"></u-tabs>
</view>
<view v-if="!bindCompNewShow">
<view class="supplier-container">
<view v-for="(item, index) in itemsToDisplay" :key="index" class="supplier-card">
<view class="supplier-details">
<view class="company-name">{{ item.companyName }}</view>
<view class="supplier-name">政采账号：{{ item.supplierAccessName }}</view>
</view>
<view class="bind-button">
<view v-if="!item.isShow">
<view class="post-select">
{{ getPostText(item.post) }}
</view>
<button size="default" type="default"
style="margin-top: 20rpx;color:#ffffff;background-color:#189f33;border-color:#ffffff;border-radius: 40rpx;height: 60rpx;display: flex;align-items: center;justify-content: center;">已绑定</button>
</view>
<view v-if="item.isShow">
<view class="post-select" v-if="item.isShow">
<uni-data-select v-model="item.post" :localdata="postList"
placeholder="选择职位"></uni-data-select>
</view>
<button size="default" type="default" @click="submitBindCompCard(item)"
style="margin-top: 20rpx;color:#ffffff;background-color:#4874cb;border-color:#ffffff;border-radius: 40rpx;height: 60rpx;display: flex;align-items: center;justify-content: center;">提交绑定</button>
</view>
</view>
</view>
</view>
</view>
<view v-if="bindCompNewShow">
<u--form labelPosition="left" :model="formBindComp">
<u-form-item label="政采网账号" prop="formBindComp.supplierAccessName" borderBottom labelWidth='200'>
<u--input v-model="formBindComp.supplierAccessName" border="none"></u--input>
</u-form-item>
<u-form-item label="职位" prop="formBindComp.post" borderBottom labelWidth='200'>
<uni-data-select v-model="formBindComp.post" :localdata="postList"
placeholder="选择职位"></uni-data-select>
</u-form-item>
</u--form>
<!-- <u-button type="success">提交</u-button> -->
<button size="default" type="default" @click="submitBindComp"
style="margin-top: 40rpx;color:#ffffff;background-color:#4874cb;border-color:#ffffff;border-radius: 40rpx;height: 60rpx;display: flex;align-items: center;justify-content: center;">提交绑定</button>
</view>
</view>
</u-popup>
</view>
</template>
<script>
import {
mapState,
mapMutations
} from 'vuex';
import {
getFieldList,
postBindEnterprise,
getUserBindComp,
getUserHaveBindComp,
} from "@/api/user.js";
export default {
name: 'BindComp',
props: {
bindCompShow: {
type: Boolean,
default: true
},
userId: {
type: String,
},
itemList: {
type: Array,
default: () => []
}
},
computed: {
...mapState("user", ["token", "tokenExpire", "userInfo"]),
localBindCompShow: {
get() {
return this.bindCompShow;
},
set(val) {
this.$emit('update:bindCompShow', val)
}
},
itemsToDisplay() {
let list = this.itemList.length > 0 ? this.itemList : this.supplierList;
// 处理 list，添加 post 和 isShow 属性
let processedList = list.map(item => ({
...item,
post: item.post !== undefined ? item.post : '', // 添加 post 属性，保留原值或默认值为空字符串
isShow: item.isShow !== undefined ? item.isShow : true // 添加 isShow 属性，默认值为 true
}));
return processedList;
}
},
data() {
return {
supplierList: [],
bindCompNewShow: false,
bindCompTabList: [{
name: '政采企业信息绑定',
},
{
name: '绑定其他企业',
}
],
postList: [],
formBindComp: {
supplierAccessName: '',
post: '',
userId: '',
}
};
},
mounted() {
this.fieldListGet();
if (this.userInfo.id != undefined) {
this.userBindCompGet();
}
},
created() {
},
methods: {
...mapMutations("user", ["setUserInfo"]),
async submitBindComp() {
this.formBindComp.userId = this.userId
if (!this.formBindComp.userId) {
this.formBindComp.userId = this.userInfo.id
}
if (this.formBindComp.userId == "") {
uni.$u.toast('绑定失败，请尝试重新登陆后绑定！');
return;
}
if (this.formBindComp.supplierAccessName === "") {
uni.$u.toast('政采网账号不能为空！');
return;
}
if (this.formBindComp.post === "") {
uni.$u.toast('职位信息不能为空！');
return;
}
const {
code,
msg,
data
} = await postBindEnterprise(this.formBindComp);
if (code === 0) {
// console.log(data)
uni.$u.toast('绑定企业成功！');
setTimeout(() => {
this.$emit('close-popup');
uni.reLaunch({
url: '/pages/index/index'
});
}, 1000);
}
},
async submitBindCompCard(item) {
if (item.post === undefined || item.post === "") {
uni.$u.toast('企业职位不能为空！');
return;
}
let userID = this.userId;
if (!userID) {
userID = this.userInfo.id
}
const params = {
supplierAccessName: item.supplierAccessName,
post: item.post,
userId: userID,
}
console.log(params)
const {
code,
msg,
data
} = await postBindEnterprise(params);
if (code === 0) {
// console.log(data)
// 更新 item 的 isShow 属性
this.$set(item, 'isShow', false);
uni.$u.toast('绑定' + item.companyName + '成功！');
// 更新绑定企业
this.userBindCompGet();
}
},
onClickOverlayClose() {
this.$emit('close-popup');
},
//获取用户下面的政采企业信息
async userBindCompGet() {
try {
// 如果resBindComp里面包含resHaveBind的数据,那么就设置该企业已经绑定好了
const resHaveBind = await getUserHaveBindComp();
const resBindComp = await getUserBindComp();
if (resHaveBind.code === 0 && resBindComp.code === 0) {
const haveBindMap = new Map();
resHaveBind.data.forEach(item => {
haveBindMap.set(item.supplierId, item.post);
});
this.supplierList = resBindComp.data.map(item => {
if (haveBindMap.has(item.supplierId)) {
return {
...item,
post: haveBindMap.get(item.supplierId),
isShow: false
};
}
return item;
});
console.log(this.supplierList);
}
} catch (error) {
console.error('获取用户绑定企业信息失败', error);
}
},
//获取职位信息
async fieldListGet() {
const {
code,
msg,
data
} = await getFieldList({
fieldName: "register_post"
});
if (code === 0 && data) {
// console.log(data)
this.postList = data.map(post => {
return {
value: post.dictCode,
text: post.dictName
}
});
// console.log(this.postList)
}
},
getPostText(postValue) {
const postItem = this.postList.find(post => post.value === postValue);
// console.log(postValue, postItem)
return postItem ? postItem.text : '未知职位';
},
selectTab(item) {
// console.log(item.name)
if (item.name == "绑定其他企业") {
this.bindCompNewShow = true;
} else {
this.bindCompNewShow = false;
}
},
},
}
</script>
<style scoped lang="less">
.bindCompCard {
width: 650rpx;
padding: 20rpx;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
text-align: center;
}
.header-container {
display: flex;
flex-direction: column;
align-items: center;
width: 100%;
margin-bottom: 20rpx;
}
.header-button {
position: absolute;
width: 80rpx;
top: 0;
right: 5px;
margin: 10rpx;
}
.header-text {
font-size: 36rpx;
margin-bottom: 10rpx;
text-align: center;
width: 100%;
}
.tabs {
width: 100%;
}
// ------------------------
.supplier-container {
display: flex;
flex-direction: column;
gap: 20rpx;
padding: 20rpx;
height: 600rpx;
overflow: auto;
}
.supplier-card {
background: #fff;
border-radius: 10rpx;
box-shadow: 0 2rpx 5rpx rgba(0, 0, 0, 0.1);
padding: 20rpx;
display: flex;
// flex-direction: column;
gap: 10rpx;
}
.supplier-details {
margin-top: 27rpx;
width: 360rpx;
display: flex;
flex-direction: column;
gap: 10rpx;
}
.company-name,
.supplier-name {
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
width: 100%;
}
.company-name {
font-size: 32rpx;
font-weight: bold;
color: #333;
}
.supplier-name {
font-size: 32rpx;
color: #666;
}
.post-select {
margin-top: 10rpx;
width: 222rpx;
}
.bind-button {
margin-left: 10rpx;
}
</style>