我正在用 react redux 制作简单的博客。作为包,我使用的是 redux 表单,我制作了诸如发布、获取、删除之类的事件,但我无法编辑表单,因为我无法在编辑中获取值标题和正文。我尝试通过在 componentwillMount 中进行初始化来解决它,但是 当我在 ComponentWillMount 中编写this.props.edit.title时,无法读取未定义的属性“标题”会出错
我该如何解决这个问题,如何在编辑表单中获取值
import React, { Component, PropTypes } from 'react';
import * as actions from '../../actions/index';
import { connect } from 'react-redux';
import {reduxForm} from 'redux-form';
import {initialize} from 'redux-form';
class EditPost extends Component {
componentWillMount(){
this.props.dispatch(initialize('edit', { title: this.props.edit.title }, ['title', 'body']));
this.props.EditPost(this.props.params.id);
}
handleFormSubmit(formProps){
this.props.addPost(formProps);
this.context.router.push('/posts');
}
render(){
const {handleSubmit,fields:{title,body}} = this.props;
if(!this.props.edit){
return <div>Loading...</div>;
}
return (
<div>
<div className="row">
<div className="col-md-12">
<form onSubmit={handleSubmit(this.handleFormSubmit.bind(this))}>
<fieldset className="form-group">
<label>Title:</label>
<input {...title} className="form-control" />
{title.touched && title.error && <div className="text-danger">{title.error}</div>}
</fieldset>
<fieldset className="form-group">
<label>Body:</label>
<textarea {...body} className="form-control" ></textarea>
{body.touched && body.error && <div className="text-danger">{body.error}</div>}
</fieldset>
<button className="btn btn-success">Add</button>
</form>
</div>
</div>
</div>
);
}
}
function mapStateToProps(state) {
return {
edit:state.posts.edit
}
}
export default reduxForm({
form:'edit',
fields:['title','body'],},mapStateToProps,actions)(EditPost);