Challenges of managing Angular state and resolving issues

I'm currently diving into the world of learning the mean stack and facing some challenges with Angular and routing. In my JavaScript file below, I have the routing code stored within the app.config module.

var app = angular.module('doorSensorReadings', ['ui.router']);

app.factory('readings',  ['$http', function($http){
  var o = {
    readings: []
  };
  
  o.getAll = function() {
alert("test");
};
}])

app.controller('MainCtrl', ['$scope', 'readings', function($scope, readings){
  $scope.readings = readings.readings;  
 
  $scope.addReading = function(){
    $scope.readings.push({id: 2, name:"Door 4", open: true})
  }
  
}]);

app.config(['$stateProvider', '$urlRouterProvider', function($stateProvider, $urlRouterProvider) {
  $stateProvider
    .state('home', {
      url: '/home',
      templateUrl: '/home.html',
      controller: 'MainCtrl',
      resolve: {
        Promise: ['readings', function(readings){
          return readings.getAll();
        }]
      }
    });

  $urlRouterProvider.otherwise('home');
}]);

Upon page load, I anticipate the code in the app.factory to trigger and display an alert box containing "test." However, I can't seem to figure out why the code isn't executing, and there are no errors displayed when the page loads. Currently, it just shows a blank page. The "ejs" file is listed below:

<html>

<head>
  <title>My Angular App!</title>
  <script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.3.10/angular.min.js"></script>
  <script src="http://cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.2.10/angular-ui-router.js"></script>
  <script src="javascripts/angularApp.js"></script>
</head>

<body ng-app="doorSensorReadings">
  
  <div class="row">
    <div class="col-md-6 col-md-offset-3">
      <ui-view></ui-view>
    </div>
  </div>


<script type="text/ng-template" id="/home.html">
  <div class="page-header">
    <h1>Door Sensor</h1>
    
    <div ng-repeat="reading in readings">
      {{reading.id}}, {{reading.name}}, {{reading.open}}
    </div>

    <button ng-click="addReading()">Post</button>
  </div>
</script>

</body>

</html>

If you have any insights or suggestions on why the alert isn't firing upon page load, I would greatly appreciate your input.

Answer №1

It is recommended to return the object o from the function factory, as it returns an object.

app.factory('readings', ['$http', function($http){
  var o = {
    readings: []
  };

  o.getAll = function() {
     alert("test");
  };
  return o;
}])

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