listen-to.js

module.exports = {
  listenTo: function(other, event, callback) {
    other.on(event, callback, this);
    this._eventEmitters = this._eventEmitters || [];
    this._eventEmitters.push([other, event]);
  },

  componentWillUnmount: function() {
    (this._eventEmitters || []).forEach(function([other, event]) {
      other.off(event, null, this);
    });
  }
};

my-component.js

var shortcodes = require('./../../data/shortcodes');
var ListenTo = require('./../../util/listen-to');

module.exports = createClass({
  displayName: 'MyComponent',

  mixins: [ListenTo],

  getInitialState: function() {
    return {
      models: shortcodes().toJSON()
    };
  },

  componentDidMount: function() {
    this.listenTo(shortcodes(), 'all', this.onEvent);
    shortcodes().initialFetch();
  },

  onEvent: function() {
    this.setState({models: shortcodes().toJSON()});
  },

  render: function() {
    return /* ... */;
  }
});