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antd vue中,如何给表单动态添加input,解决遇到一些坑

最近做项目用的组件库Ant Design Vue,这个组件看起来文档很详细,但也会遇到一些意想不到的问题,最后看文档没办法解决,只能去看源码,折腾了好久,终于把问题给解决了,遇到的问题主要是当添加input的时候验证不能友好的使用,当一个input添加,然后删除,提交表单的时候会提示填写删除的input,还有个问题就是当把填写好的内容,删除提交的时候,已删除的内容还是能提交到后台,用方法处理

form.getFieldValue('email').splice(index, 1)
      form.getFieldValue('truename').splice(index, 1)
      form.setFieldsValue({
        keys: keys.filter(key => key !== index),
        email: form.getFieldValue('email'),
        truename: form.getFieldValue('truename')
      })
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这样设置的值的时候,数据还是没删除成功,还能提交到后台,后来才知道需要先注册 注册,这样setFieldsValue方法才能成功,但是添加了之后也没删除成功,

 this.form.getFieldDecorator('keys', { initialValue: [0], preserve: true })
    this.form.getFieldDecorator('email', { initialValue: [], preserve: false })
    this.form.getFieldDecorator('truename', { initialValue: [], preserve: false })
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经过看代码后来发现文档里面有个没提示到this.form.clearField(''),用这个方法总算解决了这个问题。 但是上面方法也有个不好的方法就是,keys在删除的时候不能按顺序排列,造成values数组里面也出现了空字段现象,需要重新处理数组,把字段设置成preserve: false。用对象数组循环数据,用循环的中的索引值组成keys,这样在删除,添加的时候,keys的索引跟values数组一直对应,values数组中不会出现空元素现象,在表单提交的时候加上需要验证的字段,这样问题就解决了,大致的代码如下

<template>
  <div class="invite-new">
    <div class="invite-second-crumb">
      <second-crumb />
    </div>
    <div class="invite-box">
      <h2>通过邮件邀请,无需审核</h2>
      <p>发送邀请给指定的邮箱,对方只需进行个人账户设置即可直接加入团队</p>
      <div class="invite-list">
        <a-form
          ref="inviteForm"
          layout="inline"
          :form="form"
          class="demo-form-inline"
          @submit.prevent="submitHandle('inviteForm')"
        >
          <div
            v-for="(item,index) in formData"
            :key="index"
            class="invite-item"
          >
            <a-form-item
              :required="false"
            >
              <div class="input_email">
                <a-input
                  v-decorator="[
                    `email[${index}]`,
                    {
                      validateTrigger: [ 'blur'],
                      rules: [{
                                required: true,
                                whitespace: true,
                                message: '请输入邮箱'
                              },
                              {
                                validator: isEmailRe
                              },
                              {
                                validator:isErrorEmail
                              },
                              {
                                type:'email',
                                message: '邮箱格式不正确'
                              }
                      ]
                    }
                  ]"
                  placeholder="请输入邮箱"
                />
              </div>
            </a-form-item>
            <a-form-item
              v-if="item.isreg *1 === 1"
              class="member-name"
            >
              <span class="has-register-btn">
                已注册用户
              </span>
            </a-form-item>
            <a-form-item
              class="member-name"
            >
              <a-input
                v-decorator="[
                  `truename[${index}]`,{
                    rules:[{ required: true, message: '请输入姓名'}]
                  }]"
                placeholder="姓名"
              />
            </a-form-item>
            <a-form-item>
              <a-button
                v-if="form.getFieldValue('keys').length > 1&&(index!==0)"
                class="del-invite-btn"
                @click="delteFormItem(index)"
              >
                删除
              </a-button>
            </a-form-item>
          </div>
          <div class="invite-item">
            <a-form-item>
              <a-button
                class="add-invite-btn"
                @click="addItem"
              >
                新增
              </a-button>
            </a-form-item>
          </div>
          <div class="invite-item">
            <a-form-item>
              <a-button
                type="primary"
                html-type="submit"
                :disabled="loading"
              >
                发送邀请
              </a-button>
            </a-form-item>
          </div>
        </a-form>
      </div>
    </div>
  </div>
</template>
<script>
import SecondCrumb from '@/components/pc/organization/invite/SecondCrumb'
import { mapActions } from 'vuex'
export default {
  components: {
    SecondCrumb
  },
  data () {
    return {
      initTeamId: '',
      isLoading: false,
      submitting: false,
      initItem: {},
      formData: [
        {
          email: '',
          truename: '',
          isreg: 0
        }
      ]
    }
  },
  computed: {
    loading () {
      return this.submitting
    },
    args () {
      return this.$route.query
    },
    keys () {
      let arr = []
      this.formData.forEach((val, index) => {
        arr.push(index)
      })
      return arr
    }
  },
  watch: {
  },
  created () {
    this.form = this.$form.createForm(this)
    this.form.getFieldDecorator('keys', { initialValue: [], preserve: true })
    this.form.getFieldDecorator('email', { initialValue: [], preserve: false })
    this.form.getFieldDecorator('truename', { initialValue: [], preserve: false })
  },
  mounted () {
  },
  methods: {
    ...mapActions('organization/invite', ['ajaxSave', 'ajaxEmail']),
    addItem () {
      this.formData.push(
        {
          email: '',
          truename: '',
          isreg: 0
        }
      )
      const { form } = this
      form.setFieldsValue({
        keys: this.keys
      })
    },
    // 删除邀请成员表单行
    delteFormItem (index) {
      const { form } = this
      // can use data-binding to set
      this.formData.splice(index, 1)
      form.getFieldValue('email').splice(index, 1)
      form.getFieldValue('truename').splice(index, 1)
      form.setFieldsValue({
        keys: this.keys,
        email: form.getFieldValue('email'),
        truename: form.getFieldValue('truename')
      })
    },
    setFormData (data) {
      const { formData } = this
      for (let i = 0; i < data.length; i++) {
        formData[i].truename = data[i]
      }
    },
    submitHandle () {
   
      this.form.validateFieldsAndScroll(['keys', 'email', 'truename'], async (err, values) => {
        const { form, formData } = this
        if (!err) {
          this.setFormData(form.getFieldValue('truename'))
          const chain = await this.ajaxSave()
          chain.params({ cid: this.args.cid * 1, inviteinfo: formData })
            .setForm(this.form)
            .fetch()
        }
      })
    },
    isEmailRe (rule, value, callback) {
      const length = this.form.getFieldValue('email').filter(item => item === value).length
      if (length > 1) {
        callback(new Error('邮箱重复!'))
      } else {
        callback()
      }
    },
    async isErrorEmail (rule, value, callback) {
      const index = this.form.getFieldValue('email').indexOf(value)
      const item = this.formData[index]
      let chain = await this.ajaxEmail()
      await chain.params({ email: value, cid: this.args.cid })
        .onNetSuccess((raw) => {
          const res = raw.data
          if (!res.error) {
            if (res.payload.isreg === 1) {
              // this.isHasReg = true
              item.isreg = 1
              item.truename = ''
            } else {
              item.isreg = 0
            }
            item.email = value
          } else {
            // item.msg = res.message
            // item.isreg = 3
            if (value && res.message) {
              callback(new Error(res.message))
            } else {
              callback()
            }
          }
        })
        .fetch()
    }
  }
}
</script>
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