vue antd表单校验

使用formRef

<a-form ref="formRef" :model="modal.formQuery">

import type { FormInstance } from 'ant-design-vue'

const formRef = ref<FormInstance>()
const testForm = () => {
  formRef.value
    ?.validate(['word'])  // 不加参数，会校验全部规则
    .then((res) => {
      console.log('通过', res)
    })
    .catch((err) => {
      console.log('失败', err)
    })
}

// 子组件初始化示例
const init = () => {
  formRef.value?.resetFields()  // 初始化重置表单
}
defineExpose({ getLogisticsTemplateHandle }) // 导出该子组件方法

// 父组件监听方法
<Child ref="childInitRef" @init="childInit" />

import { nextTick } from 'vue'
 
type childTemplate = {
  init: () => void
}
const childInitRef = ref<childTemplate>() // 绑定子组件的ref
const childInit = () => {
    nextTick(() => {
        if (childInitRef.value) childInitRef.value.init() // 直接调用子组件的init初始化方法
    })
}

使用useForm

<template>
  <a-form :label-col="labelCol" :wrapper-col="wrapperCol">
    // 使用 v-bind="validateInfos.type" 绑定需要校验的数据
    <a-form-item label="Activity name" v-bind="validateInfos.name">
      <a-input v-model:value="modelRef.name" />
    </a-form-item>
    <a-form-item label="Activity zone" v-bind="validateInfos.region">
      <a-select v-model:value="modelRef.region" placeholder="please select your zone">
        <a-select-option value="shanghai">Zone one</a-select-option>
        <a-select-option value="beijing">Zone two</a-select-option>
      </a-select>
    </a-form-item>
    <a-form-item label="Activity type" v-bind="validateInfos.type">
      <a-checkbox-group v-model:value="modelRef.type">
        <a-checkbox value="1" name="type">Online</a-checkbox>
        <a-checkbox value="2" name="type">Promotion</a-checkbox>
        <a-checkbox value="3" name="type">Offline</a-checkbox>
      </a-checkbox-group>
    </a-form-item>
    <a-form-item :wrapper-col="{ span: 14, offset: 4 }">
      <a-button type="primary" @click.prevent="onSubmit">Create</a-button>
      <a-button style="margin-left: 10px" @click="resetFields">Reset</a-button>
    </a-form-item>
  </a-form>
</template>
<script lang="ts">
import { defineComponent, reactive, toRaw } from 'vue';
import { Form } from 'ant-design-vue';

const useForm = Form.useForm;
export default defineComponent({
  setup() {
    const modelRef = reactive({
      name: '',
      region: undefined,
      type: [],
    });
    const rulesRef = reactive({
      name: [
        {
          required: true,
          message: 'Please input name',
        },
      ],
      region: [
        {
          required: true,
          message: 'Please select region',
        },
      ],
      type: [
        {
          required: true,
          message: 'Please select type',
          type: 'array',
        },
      ],
    });
    // 引入需要的方法，validateInfos绑定校验数据、validate规则验证、resetFields重置表单
    const { resetFields, validate, validateInfos } = useForm(modelRef, rulesRef, {
      onValidate: (...args) => console.log(...args),
    });
    const onSubmit = () => {
      // 直接使用引入的`validate`进行校验
      validate()
        .then(() => {
          console.log(toRaw(modelRef));
        })
        .catch(err => {
          console.log('error', err);
        });
    };
    return {
      labelCol: { span: 4 },
      wrapperCol: { span: 14 },
      validateInfos,
      resetFields,
      modelRef,
      onSubmit,
    };
  },
});
</script>

两种rules定义方式

定义在form-item

<a-form-item
  label="Username"
  name="username"
  :rules="[{ required: true, message: 'Please input your username!' }]"
>
  <a-input v-model:value="formState.username" />
</a-form-item>

定义在form

<a-form
ref="formRef"
name="custom-validation"
:model="formState"
:rules="rules"
@finish="handleFinish"
@validate="handleValidate"
@finishFailed="handleFinishFailed"
></a-form>
import type { Rule } from 'ant-design-vue/es/form'

// 统一定义一个`rules`
const rules: Record<string, Rule[]> = {
  pass: [{ required: true, validator: validatePass, trigger: 'change' }],
  checkPass: [{ validator: validatePass2, trigger: 'change' }],
  age: [{ validator: checkAge, trigger: 'change' }],
}
// 提取`validator`规则，独立定义`pass`
 const validatePass = async (_rule: Rule, value: string) => {
  if (value === '') {
    return Promise.reject('Please input the password'); // eslint会报错
    return Promise.reject(new Error('Please input the password')); // 加个new Error()
  } else {
    if (formState.checkPass !== '') {
      formRef.value.validateFields('checkPass');
    }
    return Promise.resolve();
  }
}

表单校验方法

<a-form ref="formRef" :model="formState"> // 1 form上绑定ref
import { FormInstance } from 'ant-design-vue'  // 2 引入ts类型
const formRef = ref<FormInstance>() // 3 定义变量

formRef.value?.validate().then(() => {}).catch(() => {}) // 4 使用校验