Angularjs: a powerful tool for passing data efficiently between controllers

In my angular.js application, I have implemented multiple views and I am in need of maintaining the status across view changes. To achieve this, I have created a simple factory to share data between controllers. Instead of using "$scope" in the controllers, I utilize the factory name:

app.factory('share', function() {
  return {};
}

app.controller('FirstCtrl', function ($scope, share) {
  share.obj1['a'] = 'ABC';
});

app.controller('SecondCtrl', function ($scope, share) {
  share.obj1['b'] = 'DEF';
  if (share.obj1['a'] === 'ABC') {
    ...
  }
});

The structure of my HTML view is as follows:

...
<div ng-repeat="(key, item) in obj1">
  {{item}}
</div>
...

However, it's important to note that ng-* directives within views only have access to $scope, which means that the current setup does not function as intended.

Is there a way to ensure that the data remains synchronized between the share factory and $scope?

Answer №1

To easily share data between controllers, simply add the line $scope.share = share at the conclusion of each controller and adjust the view accordingly:

<div ng-repeat="(key, item) in share.obj1">

Alternatively, if the structure of your share object will remain constant (always containing an obj1), you can use angular.extend($scope, share). Keep in mind that this method is risky; any new properties added to share will not be reflected in the scope until a new controller is instantiated.

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