为什么验证没有在 Redux-form 中运行 onSubmit？

Question

我在下面有以下 react redux-form 为用户提供输入一封或多封电子邮件的表单。

由于某种原因，验证未在提交时运行。我添加了一个控制台日志，仅在页面加载时才看到正在运行的验证功能。

我做错了什么导致验证不运行 onSubmit？

import React from 'react';
import {Field, FieldArray, reduxForm} from 'redux-form'

let renderEmailField = ({input, label, type, meta: {touched, error}}) =>
  <fieldset>
    <label>{label}</label>
    <div>
      <input {...input} name="email" type="text" className="form-control" />
      {touched && error && <span>{error}</span>}
    </div>
  </fieldset>

let renderEmails = ({fields, meta: {submitFailed, error}}) =>
    <div>

    {fields.map((email, index) =>
      <div className="row form-group" key={index}>

        <div className="col-6">
          <Field
            name={email}
            component={renderEmailField}
            label={`Email Address`}
          />
        </div>
        <div className="col">
          {index > 2 &&
            <a href onClick={(e) => {e.preventDefault(); fields.remove(index)}}>X</a>
          }
        </div>
        <div className="col">
          {submitFailed && error &&
            <span className="error">{error}</span>
          }
        </div>

      </div>
      )}

      <div className="row form-group">
        <div className="col">
          <p>
            <a href onClick={(e) => {e.preventDefault(); fields.push()}}>Add Email</a>
          </p>
        </div>
      </div>

    </div>

class RaterInviteForm extends React.Component {

  handleSubmit(data) {
    // stuff
  }

  render() {

    const { submitting } = this.props
    return (
      <div className="RaterInviteForm">
        <h1>Invites</h1>
        <form className="form" onSubmit={this.props.handleSubmit(this.handleSubmit.bind(this))}>
          <FieldArray name="emails" component={renderEmails} />
          <div className="form-group">
            <button type="submit" disabled={submitting} className="btn btn-primary">Send Invitations</button>
          </div>
        </form>
      </div>
    );
  }

}

const validate = values => {
  const errors = {}
  console.log('validate')
  if (!values.emails || !values.emails.length) {
    errors.emails = {_error: 'At least one email must be entered'}
  }
  else {
    let emailsArrayErrors = []
    if (emailsArrayErrors.length) {
      errors.emails = emailsArrayErrors
    }
  }
  return errors
}

RaterInviteForm = reduxForm({
  form: 'emailsForm',
  initialValues: {
    emails: ['', '', '']
  },
  validate
})(RaterInviteForm)
...

Answer 1

Redux Form docs/example 表明它应该像下面的例子那样完成。

您应该将submit 验证函数传递给this.props.handleSubmit()，如onSubmit={this.props.handleSubmit(validate)}。

class RaterInviteForm extends React.Component {

  render() {

    const { submitting } = this.props
    return (
      <div className="RaterInviteForm">
        <h1>Invites</h1>
        <form className="form" onSubmit=    {this.props.handleSubmit(validate)}>
          <FieldArray name="emails" component={renderEmails} />
          <div className="form-group">
            <button type="submit" disabled={submitting} className="btn btn-primary">Send Invitations</button>
          </div>
        </form>
      </div>
    );
  }

}

const validate = values => {
  const errors = {}
  console.log('validate')
  if (!values.emails || !values.emails.length) {
    errors.emails = {_error: 'At least one email must be entered'}
  }
  else {
    let emailsArrayErrors = []
    if (emailsArrayErrors.length) {
      errors.emails = emailsArrayErrors
    }
  }
  return errors
}

RaterInviteForm = reduxForm({
  form: 'emailsForm',
  initialValues: {
    emails: ['', '', '']
  }
})(RaterInviteForm)
...

Answer 2

默认情况下，验证在模糊事件上运行。

此外，默认情况下 submitFailed (redux form props) 设置为 False 。这个道具只有在验证通过后才会生效，然后你就可以提交表单了。

因此，您可以使用期望函数作为参数的 onHandleSubmit。 示例

onSubmit={handleSubmit(validate)}

或者你可以添加这个

RaterInviteForm = reduxForm({
  form: 'emailsForm',
touchOnBlur : false 
  initialValues: {
    emails: ['', '', '']
  },
  validate
})(RaterInviteForm)

它的作用是，它仅在您提交表单时验证表单。