我是React的新手,所以我试图在这里展示尽可能多的代码,希望能够解决这个问题!基本上我只想填写表单字段,其中包含我从另一个API获取的对象的属性。该对象存储在autoFill reducer中。例如,我想用autoFill.volumeInfo.title填充输入,用户可以在提交之前更改值,如果需要的话。
我使用了autoFill动作创建器中的mapDispatchtoProps,但是this.props.autoFill仍然在FillForm组件中显示为未定义。我还对如何再次使用道具提交表单感到困惑。谢谢!
我的减速机:
import { AUTO_FILL } from '../actions/index';
export default function(state = null, action) {
switch(action.type) {
case AUTO_FILL:
return action.payload;
}
return state;
}
行动创作者:
export const AUTO_FILL = 'AUTO_FILL';
export function autoFill(data) {
return {
type: AUTO_FILL,
payload: data
}
}
调用自动填充操作创建者:
class SelectBook extends Component {
render() {
return (
....
<button
className="btn btn-primary"
onClick={() => this.props.autoFill(this.props.result)}>
Next
</button>
);
}
}
....
function mapDispatchToProps(dispatch) {
return bindActionCreators({ autoFill }, dispatch);
}
export default connect(mapStateToProps, mapDispatchToProps)(SelectBook);
以下是问题所在的实际表格:
import React, { Component } from 'react';
import { connect } from 'react-redux';
import { reduxForm } from 'redux-form';
import { createBook } from '../actions/index;
class FillForm extends Component {
constructor(props) {
super(props);
this.state = {value: ''};
this.handleChange = this.handleChange.bind(this);
}
onSubmit(props) {
this.props.createBook(props)
}
handleChange(event) {
this.setState({value: event.target.value});
}
render() {
const { fields: { title }, handleSubmit } = this.props;
return (
<form {...initialValues} onSubmit={handleSubmit(this.onSubmit.bind(this))}>
<input type="text" className="form-control" name="title" {...title} />
<button type="submit">Submit</button>
</form>
)
}
export default reduxForm({
form: 'AutoForm',
fields: ['title']
},
state => ({
initialValues: {
title: state.autoFill.volumeInfo.title
}
}), {createBook})(FillForm)
答案 0 :(得分:0)
我认为你在实际的表单组件中混合了connect
和reduxForm
装饰器。目前您的代码看起来像这样(我添加的注释):
export default reduxForm({
// redux form options
form: 'AutoForm',
fields: ['title']
},
// is this supposed to be mapStateToProps?
state => ({
initialValues: {
title: state.autoFill.volumeInfo.title
}
}),
/// and is this mapDispatchToProps?
{createBook})(FillForm)
如果是这种情况,那么修复应该像使用connect
装饰器一样简单(我还建议将这个连接道具分离到它们自己的变量,以尽量减少这样的混淆):
const mapStateToProps = state => ({
initialValues: {
title: state.autoFill.volumeInfo.title
}
})
const mapDispatchToProps = { createBook }
export default connect(mapStateToProps, mapDispatchToProps)(
reduxForm({ form: 'AutoForm', fields: ['title'] })(FillForm)
)
希望这有帮助!