WTF

gistfile1.js

WattAttack.module("RidesApp.Show", function (Show, WattAttack, Backbone, Marionette, $, _, Converters) {
    Show.RideAnalysisWidget = Show.Widget.extend({
        ...
        updateWidgetWithData: function () {
            if (this.model.get("records")) {
                this.setupRideData();
                this.createChart();
                this.render();
            }
        },

        DataFunc: {
            prepareLineChartData: function () {
              //here I want to work with dataset
              //Але тут у this поле dataset недоступне 
            }
        },

        createChart: function () {
            var self = this;
            console.log(self.dataset);
            return self.chart;
        },
        setupRideData: function () {
            var self = this;
            var records = this.model.get('records');
            ...
            this.dataset = [{
                "key": "metrics",
                "values": []
            },
                {
                    "key": "laps",
                    "values": []
                }];
        }
    });
}, WattAttack.module('Common.Converters'));