I am currently working on an Angular SPA where a $scope variable plays a crucial role in determining the content of a specific page. When a user clicks on a different link in the menu, parameters are passed through the URL, updating the scope variable. However, despite trying various solutions, I am facing an issue where the view does not reflect these updates. Here is a snippet of the code:
HTML
<div ng-init="loadTopicView()">
<h1 ng-bind="selectedTopic.title"></h1>
<p ng-bind="selectedTopic.body"></p>
</div>
JS
$scope.loadTopicView = function() {
var selectedTopic = urlParams.index;
$scope.selectedTopic = $scope.topics[selectedTopic];
}
Initially, I suspected that the $scope.selectedTopic was not receiving the correct value due to timing issues, possibly because the URL didn't have the updated value yet. The $scope.topics array consists of objects, and clicking on any link passes an index through the URL to assign the respective object to $scope.selectedTopic.
After numerous attempts, including running it repeatedly with window.setInterval, I couldn't resolve the issue of the HTML not updating.
I've encountered similar problems with boolean values and ng-show in the past, but this particular scenario has me stumped. Any assistance would be greatly appreciated.
Additional Information:
Here is the HTML for the side navigation that determines the content displayed on the page:
<ul class="sidebar-nav">
<li ng-repeat="topic in topics">
<a href="" ng-click="loadPage('/topics', topic.id)" ng-bind="topic.title"></a>
</li>
</ul>
And here is the JavaScript for $scope.loadPage:
$scope.loadPage = function(path, passedParams) {
// Code logic
};
This same controller includes the $scope.loadTopicView method as well.
$rootScope.$on("CallingTopicUpdate", function(){
$scope.loadTopicView();
});
Utilizing $emit and $on to trigger the function again when a new topic is selected while already on the topic page. While this updates the $scope.selectedTopic, the changes do not reflect on the screen.
The result is a discrepancy where the URL reflects the selected topic correctly, but the dynamic data bound to the topic does not update until another topic is selected. Essentially, if you keep selecting topics, the view remains one step behind the URL.