testWorker.js

(function() {
  'use strict';

  var workersModule = angular.module('App.Workers');

   workersModule.service('InsertDataWorker', [
    '$rootScope',
    '$cordovaSQLite',
    'WorkerBridge',
    'LocalDB',
    'DataStoreService',
    insertDataWorker
  ]);

  function insertDataWorker($rootScope, $cordovaSQLite, WorkerBridge, LocalDB, DataStoreService) {

    var scope = {
      start: start
    };

    /* ********************************************************************************
     * Public functions
     * ********************************************************************************/

    function start() {
      worker.startWorkerJob();
    }


    /* ********************************************************************************
     * Private functions
     * ********************************************************************************/

    var workerCode = function () {
      //this will become the first line of the worker
      "use strict;"

      function startWorkerJob() {
        main.insertData();
      }
    }

    /*
     * Insert data into local database
     *
     * @return  {Promise}
     */
    function insertData() {
      var startQuery  = "INSERT INTO 'MyTable' ",
          data        = DataStoreService.getData(),
          query       = '';

      if (!data.length) return;

      query = startQuery + '_MY TEST DATABASE QUERY_';

      $cordovaSQLite.execute(LocalDB.database, query)
      .then(function () {
        $rootScope.$broadcast('data-inserted');
      });
    }

    var worker = WorkerBridge.buildBridgedWorker(workerCode, ["startWorkerJob"], ["insertData"], [insertData]);

    return scope;
  }

  module.exports = workersModule;
})();