React.js-实现组件排序

我正在尝试学习React的概念，尤其是re:state和动态UI，通过编写一个像UI这样的小型运动花名册。我已经包含了下面的代码，整个应用程序+可视化位于http://codepen.io/emkk/pen/dGYXJO.这个应用程序基本上是从我之前定义的玩家对象数组中创建玩家卡。

我想在点击按钮时实现玩家卡片的排序。我已经创建了一个<Sort/>组件来渲染上述按钮。我会附加事件侦听器，但不知道如何将其反映在<Roster/>组件中。我对this.state尝试了许多不同的方法，但似乎无法实现。因此，请提供任何有关执行排序的帮助或一般建议，我们将不胜感激！

class ProfileCard extends React.Component {
  render() {
    return (
      <section className="profile-card">
        <figure>
          <img src={this.props.player.picURL} alt={this.props.player.Name}></img>
          <article>
            <ul>
              <li>{this.props.player.Name}</li>
              <li>{this.props.player.position}, #{this.props.player.number}</li>
              <li>{this.props.player.Club}</li>
              <li>{this.props.player.Height} ({this.props.player.Meters} m)</li>
              <li>{this.props.player.Age} years old</li>
            </ul>
          </article>
        </figure>
      </section>
    );
  }
}
class Roster extends React.Component {
  render() {
    // Store sorted version of data
    // Where I'd implement selected sorting
    var sorted = this.props.players.sort();
    /*
    * Create player cards from JSON collection
    */
    var cards = [];
    sorted.forEach(function(player) {
      if (player.year > 2000) {
        cards.push(<ProfileCard player={player} />);
      }
    });
    return (<div>{cards}</div>);
  }
}
class Sort extends React.Component {
  render() {
    return (
      <div className="sort-section">
        <h1>Sort by</h1>
        <div className="pill" id='age'>Age</div>
        <div className="pill" id='Meters'>Height</div>
        <div className="pill" id='Name'>Name</div>
      </div>
    )
  }
}
class SortablePlayerTable extends React.Component {
  render() {
    /*
    * Prefix some interestings stats
    * before roster
    */
    var ages = [], heights = [];
    this.props.players.forEach(function(player) {
      if (player.year > 2000) {
        ages.push(player.Age);
        heights.push(player.Meters);
      }
    });
    var avgAge = (ages.reduce( (a, b) => a + b) / 12).toPrecision(3);
    var avgHeights = (heights.reduce( (a, b) => a + b) / 12).toPrecision(3);
    // Return page with stats data and Roster
    return (
      <div>
        <h1>2012 Olympic Men's Basketball Team</h1>
        <h2>Average Age: {avgAge} years old</h2>
        <h2>Average Height: 6 ft 7 in ({avgHeights} m)</h2>
        <Sort/>
        <Roster 
                players={this.props.players} 
        />
      </div>
    );
  }
};
React.render(
  <SortablePlayerTable players={PLAYERS} />,
  document.getElementById('container')
);

解决方案：

另一件让我在处理这件事的过程中感到困惑的事情是，我失去了对this.setState的访问权限，不断出现this.setState is a not a function错误。不过，使用ES6箭头函数为我的处理程序函数词法绑定this拯救了我。

class ProfileCard extends React.Component {
  render() {
    return (
      <section className="profile-card">
        <figure>
          <img src={this.props.player.picURL} alt={this.props.player.Name}></img>
          <article>
            <ul>
              <li>{this.props.player.Name}</li>
              <li>{this.props.player.position}, #{this.props.player.number}</li>
              <li>{this.props.player.Club}</li>
              <li>{this.props.player.Height} ({this.props.player.Meters} m)</li>
              <li>{this.props.player.Age} years old</li>
            </ul>
          </article>
        </figure>
      </section>
    );
  }
}
class Roster extends React.Component {
  render() {
    // Create player cards from sorted, dynamic JSON collection
    var cards = [];
    this.props.players.forEach(function(player) {
      if (player.year > 2000) {
        cards.push(<ProfileCard player={player} />);
      }
    });
    return (<div>{cards}</div>);
  }
}
class Sort extends React.Component {
  sortRoster(field){
    var players = this.props.players;
    this.props.sortRosterStateBy(field, players);
  }
  render() {
    return (
      <div className="sort-section">
        <h1>Sort by</h1>
        <div className="pill" onClick={this.sortRoster.bind(this,'Age')} >Age</div>
        <div className="pill" onClick={this.sortRoster.bind(this,'Meters')} >Height</div>
        <div className="pill" onClick={this.sortRoster.bind(this,'Name')} >Name</div>
        <div className="pill" onClick={this.sortRoster.bind(this,'position')} >Position</div>
        <div className="pill" onClick={this.sortRoster.bind(this,'number')} >Number</div>
        <div className="pill" onClick={this.sortRoster.bind(this,'Club')} >Club</div>
      </div>
    )
  }
}
class SortablePlayerTable extends React.Component {
  state = {
   'players': this.props.players // default state
  }
  sortRosterStateBy = (field, players) => {
    // Sorting ...
    var sortedPlayers = players.sort( (a, b) => {
      if (a[field] > b[field]) {
        return 1;
      }
      if (a[field] < b[field]) {
        return -1;
      }
      return 0;
    });
    // Then call setState
    this.setState({'players': sortedPlayers});
  }
  render() {
    // Prefix some interestings stats before roster
    var ages = [], heights = [];
    this.props.players.forEach(function(player) {
      if (player.year > 2000) {
        ages.push(player.Age);
        heights.push(player.Meters);
      }
    });
    var avgAge = (ages.reduce( (a, b) => a + b) / 12).toPrecision(3);
    var avgHeight = (heights.reduce( (a, b) => a + b) / 12).toPrecision(3);
    // Return page with stats data and Roster
    return (
      <div>
        <h1>2012 Olympic Men's Basketball Team</h1>
        <h2>Average Age: {avgAge} years old</h2>
        <h2>Average Height: 6 ft 7 in ({avgHeight} m)</h2>
        <Sort players={this.props.players} sortRosterStateBy={this.sortRosterStateBy}/>
        <Roster players={this.state.players}/>
      </div>
    );
  }
};
ReactDOM.render(
  <SortablePlayerTable players={PLAYERS} />,
  document.getElementById('container')
);