vue 中跨组件的表单验证

使用的是element写的，里面提供了表单验证。

子组件是这样的

<template>
  <div>
    <el-form :model="value" ref="numberValidateForm" label-width="100px" class="demo-ruleForm">
      <el-form-item
        label="年龄"
        prop="age"
        :rules="[{ required: true, message: '年龄不能为空', trigger: 'change'}]"
      >
        <el-input type="age" v-model="value.age" autocomplete="off"></el-input>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {

  props: {
    value: {
      type: Object,
      default () {
        return {age: ''}
      }
    }
  },

  methods: {
    submitForm () {
      return this.$refs.numberValidateForm.validate()
    }
  }
}
</script>

父组件大概是这样的

<template>
  <div>
    <h1>验证表单</h1>
    <order-input ref="order" v-model="dynamicValidateForm"></order-input>
    <el-button
      type="primary"
      @click="handleClick"
    >
      提交
    </el-button>
  </div>
</template>

<script>
import OrderInput from './OrderInput'

export default {
  components: {
    OrderInput
  },
  data () {
    return {
      dynamicValidateForm: {
        age: ''
      }
    }
  },

  methods: {
    handleClick () {
      this.$refs.order.submitForm().then((valid) => {
        console.log(valid, '提交表单')
      }, () => {
        console.log('提交错误')
      })
    }
  }
}
</script>