How to access 'this.props.match.params' along with other props?

问题

I have this code in my parent component:

<Route path='/champions/:id' render={(props) => <ChampionDetails {...props} match={this.handleMatch}/>}/>

where the match prop will be a function that retrieves data from the child component (ChampionDetails). A snippet of my ChampionDetails (child) component:

    import React, { Component } from 'react';

    class ChampionDetails extends Component {
      state = {
        champId:this.props.match.params.id,
        champData:null,
        match:false
      }

      componentDidMount(){
        console.log('ChampionDet mounted')
        this.handleChampInfo();
        console.log(this.props.match)
      }

      componentDidUpdate(){
        console.log('ChampionDet updated')
      }


      handleChampInfo=()=>{
        let champData = [];
        let id = this.state.champId
        console.log(id)
        fetch('/api/getChampion?id='+id)
          .then(data=> { return data.json() })
          .then(json=> {
            console.log(json.data);
            champData.push(json.data);
            this.setState({
              champData:json.data,
              match:true
            })
            this.props.match(true)
            // this.props.history.push('/champions/'+id)
          })
          .catch(err=>{
            console.log(err)
          })
      }

      render(){
        return(
          <div>
            <p>{this.state.champId}</p>
            {this.state.champData===null ? null:<p>{this.state.champData.roles}</p>}
          </div>
        )
      }
    }

    export default ChampionDetails;

The problem here is that if I have the match={} in my parent's route, then this.props.match.params.id will become undefined. If I remove match={} then I can retrieve this.props.match.params.id

I would like to know if its possible to be able to pass other props while still have access to this.props.match.params.id in my case.

Any help will be much appreciated!

回答1:

You can pass matchProps as the props from the router, this.props for any props from the parent and then just avoid overwriting props - your match prop is overriding the props from the route:

<Route path='/champions/:id' render={(matchProps) =>
  <ChampionDetails
    {...matchProps}
    {...this.props}
    handleMatch={this.handleMatch}
  />
}/>

When you spread {...props} your match prop overrides react-router's match.

回答2:

If you're using react-router version >=4, you should be able to access the router params at any component inside the router via withRouter HOC. For instance:

import { withRouter } from 'react-router-dom';
...
export withRouter(ChampionDetails);

回答3:

Match prop is part of the react-router-dom, so by making another props called match you are overwriting it.

The simplest way: just rename the match={this.handleMatch}/>} to something else like matchHandler={this.handleMatch}/>}

If using the name match is essential, destruct it as const {matchHandler : match} = this.props

来源：https://stackoverflow.com/questions/54114416/how-to-access-this-props-match-params-along-with-other-props

标签

javascript

reactjs

react-router