我如何把实体进入道具从componetDidMount抓取后?

Question

inside componentDidMount我调用分派fetchReviews。但是，一旦安装，获取的评论如何在道具中设置?

business show组件:

import React from "react";
import { Link } from 'react-router-dom';
import Star from "../star/star";
class BusinessShowIndex extends React.Component {
constructor(props) {
super(props)
this.state = {
loading: true
}
}
componentDidMount() {
this.props.fetchReviews(this.props.business.id)
// .then (() => this.setState({reviews: this.props.reviews}))
this.setState({loading: false})
console.log(this.props)
}
render() {
const { business, reviews } = this.props;
if (!this.props.reviews) return null;
if (this.state.loading === true) {
return <p>Loading...</p>
}
return (
<div className="business-show">
<Link to={`/business/${business.id}`} className='link-business-index'>
<img className="business-index-photo" src={business.photo_urls[0]} alt=""/>
<p className="business-index-name">{business.name}</p>
<Star reviews={reviews}/>
<p className="business-index-city">{business.city}</p>
<p className="business-index-cost">Cost: {business.cost}</p>
<p className="business-index-hours">Hours: {business.open} - {business.close}</p>
</Link>
</div>
)
}
};
export default BusinessShowIndex;

容器:

import { connect } from 'react-redux';
import {fetchReviews} from '../../actions/review_actions';
import { withRouter } from 'react-router-dom';
import BusinessShowIndex from './business_show_index';
const mapStateToProps = (state, ownProps) => ({
business: state.entities.businesses[ownProps.business.id],
currentUser: state.entities.users[state.session.id],
reviews: Object.values(state.entities.reviews)
})
const mapDispatchToProps = dispatch => ({
fetchReviews: (businessId) => dispatch(fetchReviews(businessId))
})
export default withRouter(connect(mapStateToProps, mapDispatchToProps)(BusinessShowIndex));

让我知道你还需要看什么!谢谢你！还有什么建议来清理代码?听取大家的意见。

在componentDidMount内部调用分派fetchReviews。但是，一旦安装，获取的评论如何在道具中设置?

Answer 1

您可以使用this.props.review

检查mapStateToProps函数。你得到了整个状态，它返回你想返回的部分