一、在form表单中经常去验证一些内容,有的是只比较简单的一些提示,有的则是需要自定义,实现方法如下:
<template>
<el-form :model="ruleForm2" :rules="dataRule" ref="dataForm" @keyup.enter.native="dataFormSubmit()" label-width="130px">
<el-form-item label="类型名称" prop="drinkCategoryName">
<el-input v-model="dataForm.drinkCategoryName" placeholder="请输入饮品类型名称"></el-input>
</el-form-item>
<el-form-item label="年龄" prop="age">
<el-input v-model.number="ruleForm2.age"></el-input>
</el-form-item>
<el-form-item label="密码" prop="pass">
<el-input type="password" v-model="ruleForm2.pass" auto-complete="off"></el-input>
</el-form-item>
<el-form-item label="确认密码" prop="checkPass">
<el-input type="password" v-model="ruleForm2.checkPass" auto-complete="off"></el-input>
</el-form-item>
</el-form>
</template>
<script>
export default {
data() {
//判断类型名称是否重复
var validatePass = (rule, value, callback) => {
let params = {
name: value
}
this.$api.get(url),params).then(res => {
if(res && res.data.code === 0){
callback() //验证通过
}else{
callback(new Error('名称不能重复哦~')) //没有验证通过
}
})
}
var checkAge = (rule, value, callback) => {
if (!value) {
return callback(new Error('年龄不能为空'));
}
setTimeout(() => {
if (!Number.isInteger(value)) {
callback(new Error('请输入数字值'));
} else {
if (value < 18) {
callback(new Error('必须年满18岁'));
} else {
callback();
}
}
}, 1000);
};
var validatePass = (rule, value, callback) => {
if (value === '') {
callback(new Error('请输入密码'));
} else {
if (this.ruleForm2.checkPass !== '') {
this.$refs.ruleForm2.validateField('checkPass');
}
callback();
}
};
var validatePass2 = (rule, value, callback) => {
if (value === '') {
callback(new Error('请再次输入密码'));
} else if (value !== this.ruleForm2.pass) {
callback(new Error('两次输入密码不一致!'));
} else {
callback();
}
};
return {
ruleForm2: {
drinkCategoryName: '',
pass: '',
checkPass: '',
age: ''
},
dataRule: {
drinkCategoryName: [
{ required: true, message: '类型名称不能为空', trigger: 'blur' },
{ validator:validatePass,trigger:'blur'}
],
pass: [
{ validator: validatePass, trigger: 'blur' }
],
checkPass: [
{ validator: validatePass2, trigger: 'blur' }
],
age: [
{ validator: checkAge, trigger: 'blur' }
]
}
};
},
methods: {
// 表单提交
dataFormSubmit () {
this.$refs['dataForm'].validate((valid) => {
if (valid) {
this.getInit()
} else {
console.log('error submit!!');
return false;
}
})
}
}
}
</script>
需要注意的是:
①、定义form表单中的对象变量 :model
②、如果需要验证的话在表单中定义验证对象以及验证规则 :rules
③、如果定义了验证某个字段需要验证的话,需要在el-form-item中定义prop对应的字段名
④、如果是自定义验证规则需要在data里面去定义