tns-template-master-detail-kinvey/app/cars/cars-list-view-model.js

Master-detail interface to display collection of items from Kinvey and inspect and edit selected item properties.

const observableModule = require("tns-core-modules/data/observable");
const ObservableArray = require("tns-core-modules/data/observable-array").ObservableArray;

const CarService = require("./shared/car-service");

/* ***********************************************************
 * This is the master list view model.
 *************************************************************/
function CarsListViewModel() {
    const viewModel = observableModule.fromObject({
        cars: new ObservableArray([]),
        isLoading: false,

        _carService: CarService.getInstance(),

        load: function () {
            this.set("isLoading", true);

            this._carService.load()
                .then((cars) => {
                    this.set("cars", new ObservableArray(cars));
                    this.set("isLoading", false);
                })
                .catch(() => {
                    this.set("isLoading", false);
                });
        }
    });

    return viewModel;
}

module.exports = CarsListViewModel;