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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>async-validator-demo</title>
<script src="./async-validator.js"></script>
<style>
.warning {
font-size: 70%;
color: crimson;
}
</style>
</head>
<body>
<form name="demo" id="demo">
<div>
<label for="name">姓名：</label>
<input type="text" name="name" />
</div>
<fieldset name="information">
<legend>信息</legend>
<div>
<label for="age">年龄：</label>
<input type="number" name="age" />
</div>
<div>
<label for="sex">性别：</label>
<select name="sex">
<option value="">空</option>
<option value="male">男</option>
<option value="female">女</option>
<option value="else">其他</option>
</select>
</div>
</fieldset>
<fieldset name="favorite">
<legend>喜好</legend>
<div>
<label for="ballSport">球类运动：</label>
<input name="ballSport" />
</div>
<div>
<label for="comedyFilm">喜剧电影：</label>
<select name="comedyFilm">
<option value="">空</option>
<option value="让子弹飞">让子弹飞</option>
<option value="一步之遥">一步之遥</option>
<option value="邪不压正">邪不压正</option>
</select>
</div>
<fieldset name="food">
<legend>食物</legend>
<div>
<label for="vegetable">蔬菜：</label>
<input name="vegetable" />
</div>
<div>
<label for="fruit">水果：</label>
<input name="fruit" />
</div>
</fieldset>
</fieldset>
<div class="form-example">
<button type="button" onclick="validate()">提交</button>
</div>
</form>
<script>
let validateRules = {
name: [
{
required: true,
message: '姓名为必填项',
},
{
type: 'string',
min: 2,
message: '姓名长度必须大于两个字符',
},
],
information: {
type: 'object',
message: '个人信息未填写',
required: true,
fields: {
age: [
{
required: true,
message: '年龄为必选项',
},
{
type: 'number',
max: 18,
min: 0,
message: '年龄超出范围',
transform(value) {
return +value;
},
},
],
sex: [
{
required: true,
message: '性别为必填项',
},
{
validator: function (rule, value, callback) {
if (value !== 'male' && value !== 'female') {
callback('性别必须为男或女');
}
callback();
// setTimeout(() => {
// if (value !== 'male' && value !== 'female') {
// callback('性别必须为男或女，异步');
// }
// callback();
// }, 3000);
},
},
],
},
},
favorite: {
type: 'object',
message: '喜好未填写',
required: true,
fields: {
ballSport: [
{
required: true,
message: '喜好的球类运动必填',
},
{
type: 'string',
pattern: /^.*球$/,
message: '必须以球结尾',
},
],
comedyFilm: {
type: 'enum',
enum: ['让子弹飞', '一步之遥', '邪不压正'],
message: '喜欢的喜剧电影得是民国三部曲',
},
food: {
type: 'object',
message: '喜好的食物未填写',
required: true,
fields: {
vegetable: [
{
required: true,
message: '喜好的食物-蔬菜必填',
},
{
// promise模式
asyncValidator: function (rule, value) {
return new Promise((resolve, reject) => {
setTimeout(() => {
if (value === '') {
reject(
'喜好的食物-蔬菜不能为空字符串 asyncValidator return promise',
);
}
resolve();
}, 500);
});
},
},
],
fruit: [
{
required: true,
message: '喜好的食物-水果必填',
},
{
// 异步模式
asyncValidator: function (rule, value, callback) {
setTimeout(() => {
if (value === '') {
callback(
'喜好的食物-水果不能为空字符串 asyncValidator callback async',
);
}
callback();
}, 1000);
},
},
],
},
},
},
},
};
let schema = new Schema(validateRules);
function validate() {
const form = document.getElementById('demo');
let formData = new FormData(form);
let formDataObj = {};
for ([key, value] of formData) {
formDataObj[key] = value;
}
let obj = {
name: formDataObj['name'],
information: {
age: formDataObj['age'],
sex: formDataObj['sex'],
},
favorite: {
ballSport: formDataObj['ballSport'],
comedyFilm: formDataObj['comedyFilm'],
food: {
vegetable: formDataObj['vegetable'],
fruit: formDataObj['fruit'],
},
},
};
console.log('LJY-dev: -----------------------------');
console.log('LJY-dev: validate -> obj', obj);
console.log('LJY-dev: -----------------------------');
schema
.validate(obj, {
// firstFields: true,
// first: true,
})
.then((value) => {
// 校验通过
console.log('校验通过', value);
})
.catch(({ errors, fields }) => {
// 校验未通过
// 显示错误信息
console.log('校验失败', errors, fields);
warnInsertToDOM(fields);
});
}
/**
* @description: 根据报错信息添加tips
* @param {type}
* @return {type}
*/
function warnInsertToDOM(fields) {
// 清除之前的节点
let oldElements = document.getElementsByClassName('warning');
while (oldElements[0]) {
oldElements[0].parentNode.removeChild(oldElements[0]);
}
// 添加新节点
Object.keys(fields).forEach((name) => {
// debugger
// 创造新节点
const message = fields[name].map((error) => error.message).join('\n');
const node = document.createElement('p');
node.className = 'warning';
node.innerText = message;
// 找到插入的位置
const lastDotIndex = name.lastIndexOf('.');
if (lastDotIndex > -1) {
name = name.substring(lastDotIndex + 1);
}
let referenceElement = document.getElementsByName(name)[0];
// 插入新节点
function insertAfter(newElement, targetElement) {
var parent = targetElement.parentNode;
if (parent.lastChild == targetElement) {
parent.appendChild(newElement);
} else {
parent.insertBefore(newElement, targetElement.nextSibling);
}
}
insertAfter(node, referenceElement);
});
}
</script>
</body>
</html>