如何在React-Bootstrap中使用Redux-Form？

Question

我试图使用"redux-form":"^ 6.7.0"和"react-bootstrap":"^ 0.31.0"

我的组件呈现得很好,但是当我按下提交时,我看到的是一个空对象.

注意:我已经尝试首先使用connect包装Config,如下所示,首先用redux-form包装然后使用from react-redux connect()

Configuration.js

class Config extends Component {
    render() {
        const { ServerPort, UserID, PortNumber, WWWUrl, SourcePath, FMEPath, pickFile, pickFolder, handleSubmit } = this.props;
        return (
            <Form horizontal onSubmit={handleSubmit}>
                <FormGroup controlId="serverPortBox">
                    <Col componentClass={ControlLabel} sm={2}>Watson Port:</Col>
                    <Col sm={10}>
                        <OverlayTrigger placement="left" overlay={(<Tooltip id="tt1">TCP port for Watson to use</Tooltip>)}>
                            <Field name="WatsonPort" component={FormControl}
                                type="number" min="1024" max="65535" placeholder={ServerPort} />
                        </OverlayTrigger>
                    </Col>
                </FormGroup>

 ......

const CForm = reduxForm({
    form: 'configuration' // a unique name for this form
})(Config);

const Configuration = connect(mapStateToProps, mapDispatchToProps)(CForm)

export default Configuration

reducers.js

import { combineReducers } from 'redux'
import { reducer as formReducer } from 'redux-form

......

const reducerList = {
    GLVersion,
    ServerConfig,
    ServerStats,
    form: formReducer
}

export default combineReducers(reducerList)

主要包Dashboard.js

我在调试器中看到的是config是一个空对象

    <Panel className='configPanel'
      collapsible header="Configuration"
      eventKey="1"
      defaultExpanded={true}>
      <Configuration onSubmit={(config) => writeConfig(config)} />
    </Panel>

Answer 1

请参阅:https://github.com/erikras/redux-form/issues/2917

哦,这是一个很大的谜.我按照https://github.com/react-bootstrap/react-bootstrap/issues/2210中的建议进行操作,并且关于其他道具和空提交的警告都停止了.

看来你必须在自定义组件中包装Bootstrap(为什么？,我不知道).还要确保自定义组件是无状态功能组件,或者在第一次按键后,您的字段将模糊并失去焦点.

关于REDx-form的文档中有一些警告.

我的自定义字段组件FieldInput

  const FieldInput = ({ input, meta, type, placeholder, min, max }) => {
        return (
            <FormControl
                type={type}
                placeholder={placeholder}
                min={min}
                max={max}
                value={input.value}
                onChange={input.onChange} />
        )
    }

我这样调用它:

<Field name="ServerPort"
   type='number' 
   component={FieldInput} 
   placeholder={ServerPort} 
   min="1024" max="65535" 
/>

另见:https://github.com/erikras/redux-form/issues/1750

所以现在,FieldInput和Config的定义如下所示:

import React, { Component } from 'react'
import { Field, reduxForm } from 'redux-form'
import { connect } from 'react-redux'
import { Form, FormControl, FormGroup, ControlLabel, Col, Button, Tooltip, OverlayTrigger } from 'react-bootstrap'
import * as Act from '../dash/actions.js'
import FaFolderOpen from 'react-icons/lib/fa/folder-open'
import FaFileCodeO from 'react-icons/lib/fa/file-code-o'

const FieldInput = ({ input, meta, type, placeholder, min, max }) => {
    return (
        <FormControl
            type={type}
            placeholder={placeholder}
            min={min}
            max={max}
            value={input.value}
            onChange={input.onChange} />
    )
}

const Config = ({ ServerPort, UserID, PortNumber, WWWUrl, SourcePath, FMEPath, pickFile, pickFolder, handleSubmit }) => {
    return (
        <Form horizontal onSubmit={handleSubmit}>
            <FormGroup controlId="serverPortBox">
                <Col componentClass={ControlLabel} sm={2}>Watson Port:</Col>
                <Col sm={10}>
                    <OverlayTrigger placement="left" overlay={(<Tooltip id="tt1">TCP port for Watson to use</Tooltip>)}>
                        <Field name="ServerPort" type='number' min="1024" max="65535" component={FieldInput} placeholder={ServerPort}  />
                    </OverlayTrigger>
                </Col>
            </FormGroup>

Answer 2

需要的一些道具从<FormControl>里面传递,请参阅http://redux-form.com/6.6.3/docs/api/Field.md/#propsprops.input<Field>

要以通用方式传递所有这些道具,而不是显式地执行,您可以使用以下函数:

const ReduxFormControl = ({input, meta, ...props}) => {
     return <FormControl {...props} {...input} />
};

然后在表单内:

<Field component={ReduxFormControl} ... />

这样,value,onChange等都按预期传递给了<FormControl>.