商城中商品购买中多规格的选择
实现效果：
1.所有规格可以联动
2.库存不足置灰不可选
3.再次点击可以取消选择
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>规格选择</title>
<script src="https://cdn.bootcdn.net/ajax/libs/vue/2.6.10/vue.min.js"></script>
<style>
html,
body {
padding: 0;
margin: 0;
}
#app {
font-size: 16px;
width: 100%;
height: 100%;
margin: auto;
padding: 20px;
box-sizing: border-box;
}
.productBox {
display: block;
margin: 0 auto;
}
.productContent {
margin-bottom: 50px;
}
.productDelcom {
color: #323232;
border-bottom: 1px solid #EEEEEE;
padding-bottom: 30px;
}
.productFooter {
margin-top: 10px;
}
.productFooter .specItem {
border: 1px solid #606060;
border-radius: 5px;
color: #606060;
text-align: center;
padding: 4px 12px;
margin-right: 20px;
cursor: pointer;
display: inline-block;
}
.productFooter .specItem.productActive {
background-color: #1A1A29;
color: #fff;
border: 1px solid #1A1A29;
}
.productFooter .specItem.noneActive {
background-color: #ccc;
opacity: 0.4;
color: #000;
pointer-events: none;
}
.buyBtn {
background-color: #1A1A29;
color: #fff;
text-align: center;
height: 44px;
display: flex;
align-items: center;
justify-content: center;
width: 90%;
margin: 0 auto;
border-radius: 8px;
}
.price {
height: 30px;
line-height: 30px;
margin-top: 10px;
}
</style>
</style>
</head>
<body>
<div id="app">
<div class="productBox">
<div class="productContent">
<div class="productDelcom" v-for="(ProductItem,n) in simulatedData.specifications">
<p>{{ProductItem.name}}</p>
<div class="productFooter">
<div class="specItem" v-for="(item,index) in ProductItem.item"
@click="specificationBtn(item.name,n,$event,index)"
:class="[item.isShow?'':'noneActive',subIndex[n] == index?'productActive':'']">
{{item.name}}
</div>
</div>
</div>
<p class="price"> ¥ {{price}}</p>
</div>
<div class="buyBtn">立即购买</div>
</div>
</div>
<script>
var app = new Vue({
el: '#app',
data() {
return {
simulatedData: { //模拟后台返回的数据 多规格
"difference": [{
"id": "19",
"price": "200.00",
"stock": "19", // 库存
"difference": "100,白色,AA" // 规格
},
{
"id": "20",
"price": "100.00",
"stock": "29",
"difference": "200,白色,AA"
},
{
"id": "21",
"price": "300.00",
"stock": "10",
"difference": "100,黑色,AA"
},
{
"id": "22",
"price": "900.00",
"stock": "0",
"difference": "200,黑色,AA"
},
{
"id": "23",
"price": "600.00",
"stock": "48",
"difference": "100,绿色,AA"
},
{
"id": "24",
"price": "500.00",
"stock": "40",
"difference": "200,绿色,AA"
},
{
"id": "25",
"price": "90.00",
"stock": "0",
"difference": "100,蓝色,AA"
},
{
"id": "26",
"price": "40.00",
"stock": "20",
"difference": "200,蓝色,AAA"
}
],
"specifications": [//这里是要被渲染字段
{
"name": "尺寸",
"item": [{
"name": "100",
},
{
"name": "200",
}
]
},
{
"name": "颜色",
"item": [{
"name": "白色",
},
{
"name": "蓝色",
},
{
"name": "黑色",
},
{
"name": "绿色",
}
]
},
{
"name": "尺寸",
"item": [{
"name": "AA",
}, {
"name": "AAA",
}]
},
]
},
selectArr: [], //存放被选中的值
shopItemInfo: {}, //存放要和选中的值进行匹配的数据
subIndex: [], //是否选中 因为不确定是多规格还是单规格，所以这里定义数组来判断
price: 0 //选中规格的价钱
}
},
mounted() {
this.checkItem()
},
methods: {
specificationBtn: function(item, n, event, index) {
if (this.selectArr[n] != item) {
this.selectArr[n] = item;
this.subIndex[n] = index;
} else {
this.selectArr[n] = "";
this.subIndex[n] = -1; //去掉选中的颜色
}
this.checkItem();
},
checkItem: function() {
var option = this.simulatedData.specifications;
console.log(option)
var result = []; //定义数组储存被选中的值
for (var i in option) {
result[i] = this.selectArr[i] ? this.selectArr[i] : '';
}
console.log(result)
for (var i in option) {
var last = result[i]; //把选中的值存放到字符串last去
for (var k in option[i].item) {
console.log(result[i])
console.log(option[i].item[k].name)
result[i] = option[i].item[k].name; //赋值，存在直接覆盖，不存在往里面添加name值
option[i].item[k].isShow = this.isMay(result); //在数据里面添加字段isShow来判断是否可以选择
}
result[i] = last; //还原，目的是记录点下去那个值，避免下一次执行循环时被覆盖
}
if (this.shopItemInfo[result]) {
let str = this.shopItemInfo[result].difference.split(',')
this.price = str.length == 3 ? this.shopItemInfo[result].price : 0
} else {
this.price = 0
}
self.$forceUpdate(); // 强制更新
},
isMay: function(result) {
for (var i in result) {
if (result[i] == '') {
return true; //如果数组里有为空的值，那直接返回true
}
}
console.log(result)
console.log(this.shopItemInfo[result])
return !this.shopItemInfo[result] || this.shopItemInfo[result].stock == 0 ? false :
true; //匹配选中的数据的库存，若不为空返回true
}
},
created: function() {
console.log(this.simulatedData.difference)
for (var i in this.simulatedData.difference) {
this.shopItemInfo[this.simulatedData.difference[i].difference] = this.simulatedData
.difference[i];
}
//[100,白色,AA: {}, 100,白色,AA: {}]
console.log(this.shopItemInfo)
this.checkItem();
}
})
</script>
</body>
</html>
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