Leveraging NgRoute Params within an AngularJS Controller Identifier

In AngularJS, I have successfully set up a route with a variable parameter.

This question is an expansion on this previous inquiry; where I was able to utilize params in a variable templateUrl like this:

.when('/course/:lesson', {
    templateUrl: function(params){
         return '/partials/course/' + params.lesson;
    }
    //...
})

However, when attempting to do something similar for a variable controller name, I encountered an unknown provider error.

.when('/course/:lesson', {
    templateUrl: function(params){
         return '/partials/course/' + params.lesson;
    },
    controller: function(params){
         return params.lesson + 'Ctrl';
    }
})

Essentially, instead of creating numerous routes that all follow the same pattern, I want to dynamically map the lesson variable to both the /partials/course/{{lesson}} route and the {{lesson}}Ctrl controller.

Is this achievable?

Answer №1

One way to address this issue is by using the code snippet provided below. It might not be the most elegant solution, but it should get the job done.

controller: function($scope, $controller, $routeParams){
     $controller($routeParams.lesson + 'Ctrl', {$scope: $scope});
}

To handle such scenarios more efficiently, consider utilizing ui.router. This module includes a controllerProvider which functions similarly to what you were attempting.

Answer №2

Unfortunately, the names of controllers in AngularJS are fixed and cannot be changed during runtime. Controllers are essentially functions that are compiled before our application starts running. For more information on this topic, you can visit here.

That being said, it is indeed possible to dynamically assign a controller to a view using the ngController directive. This can be quite useful in certain scenarios where dynamic controller assignment is required. You can find more details on how to achieve this here.

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