location-list.js

define([
    'jquery',
    'underscore',
    'backbone',
    'store',
    'models/location'
], function($,_,Backbone, Store, Location){
  var LocationList = Backbone.Collection.extend({

    model: Location,

    initialize: function( models, options){
      // Can be 'departures', 'destinations', 'routine-stops'
      this.localStorage = new Store(options.store);
    },

    sortBy: function( modelAttr ){
      if ( _.indexOf( _.keys(this.model.prototype.defaults), modelAttr) < 0 )
        return;
      this.compareBy = modelAttr;
    },
    
    comparator: function( model ){
      return model.get(this.compareBy);
    }

  });

  return LocationList;

});