I've been diving into a new AngularJS project and came across a frustrating issue that's starting to get under my skin...
In this project, I have an Angular Service that holds data which needs to be accessed from various views and controllers. This data is constantly being updated by another Service receiving real-time data from a server via SocketIO.
Here's a snippet of the code:
angular.module('Foo', [])
.factory('DataContainer', function(){
var data = [];
var o = {};
o.all = function() {
return data;
};
o.add = function(item){
data.push(item);
};
return o;
})
.factory('DataReceiver', function(DataContainer){
var o = {}
o.init = function(){
socket = io.connect()
.on('data', function(item){
DataContainer.add(item);
};
};
return o;
})
.directive('dataList', function(DataContainer) {
return {
restrict: 'E',
template: '<ul><li ng-repeat="item in data">{{item}}</li></ul>',
replace: true,
link: function(scope) {
scope.data = DataContainer.all();
}
};
});
The problem arises when "dataList" fails to update upon calling DataContainer.add() from the parent controller, even though the data in DataContainer gets updated by the DataReceiver service (since the $scope itself doesn't update).
I've tried multiple approaches, such as:
$scope.data = DataContainer;
.....
ng-repeat="item in data.all() track by $index"
hoping it would solve the issue, but unfortunately, it didn't.
Now, I'm contemplating whether to use $rootScope or utilize $watch along with $scope.apply() to pass and update my data. However, this method seems cumbersome, and I'm uncertain if it's the right course of action...
What could I be missing? Is there a proper way to bind a Service variable to a controller $scope or directive? Appreciate any guidance on this matter!