element-plus/docs/examples/form/custom-validation.vue

110 lines
2.6 KiB
Vue

<template>
<el-form
ref="ruleFormRef"
:model="ruleForm"
status-icon
:rules="rules"
label-width="120px"
class="demo-ruleForm"
>
<el-form-item label="Password" prop="pass">
<el-input
v-model="ruleForm.pass"
type="password"
autocomplete="off"
></el-input>
</el-form-item>
<el-form-item label="Confirm" prop="checkPass">
<el-input
v-model="ruleForm.checkPass"
type="password"
autocomplete="off"
></el-input>
</el-form-item>
<el-form-item label="Age" prop="age">
<el-input v-model.number="ruleForm.age"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="submitForm(ruleFormRef)"
>Submit</el-button
>
<el-button @click="resetForm(ruleFormRef)">Reset</el-button>
</el-form-item>
</el-form>
</template>
<script lang="ts" setup>
import { ref, reactive } from 'vue'
import type { ElForm } from 'element-plus'
type FormInstance = InstanceType<typeof ElForm>
const ruleFormRef = ref<FormInstance>()
const checkAge = (rule: any, value: any, callback: any) => {
if (!value) {
return callback(new Error('Please input the age'))
}
setTimeout(() => {
if (!Number.isInteger(value)) {
callback(new Error('Please input digits'))
} else {
if (value < 18) {
callback(new Error('Age must be greater than 18'))
} else {
callback()
}
}
}, 1000)
}
const validatePass = (rule: any, value: any, callback: any) => {
if (value === '') {
callback(new Error('Please input the password'))
} else {
if (ruleForm.checkPass !== '') {
if (!ruleFormRef.value) return
ruleFormRef.value.validateField('checkPass', () => null)
}
callback()
}
}
const validatePass2 = (rule: any, value: any, callback: any) => {
if (value === '') {
callback(new Error('Please input the password again'))
} else if (value !== ruleForm.pass) {
callback(new Error("Two inputs don't match!"))
} else {
callback()
}
}
const ruleForm = reactive({
pass: '',
checkPass: '',
age: '',
})
const rules = reactive({
pass: [{ validator: validatePass, trigger: 'blur' }],
checkPass: [{ validator: validatePass2, trigger: 'blur' }],
age: [{ validator: checkAge, trigger: 'blur' }],
})
const submitForm = (formEl: FormInstance | undefined) => {
if (!formEl) return
formEl.validate((valid) => {
if (valid) {
console.log('submit!')
} else {
console.log('error submit!')
return false
}
})
}
const resetForm = (formEl: FormInstance | undefined) => {
if (!formEl) return
formEl.resetFields()
}
</script>