Send the id to Angular through the URL parameter

Within my application, I have successfully implemented a list view and a detailed view for individual list items. Users are able to access the detailed view by clicking on a list entry. Now, my goal is to include links in emails that will directly lead users to specific item details.

I have been exploring the use of ngRoute for this functionality, but unfortunately, it is not behaving as expected - in fact, it does not appear to be working at all. The alert() function I included is never triggered.

The following section highlights the relevant portion of my controller:

var myController = angular.module('myProject.controllers', ['ngRoute']);

myController.config(['$routeProvider', '$locationProvider', function($routeProvider, $locationProvider) {
  $routeProvider.when('/show/:itemId', {
    templateUrl: 'item-details.html',
    controller: 'MyController'
  });

  $locationProvider.html5Mode(true);
}]);

myController.controller('MyController', ['$scope', '$routeParams', function($scope, $routeParams) {
  /** Other stuff... */

  $scope.$on('$routeChangeSuccess', function() {
    // Ensure $routeParams has data
    alert("itemId: " + $routeParams.itemId);

    if ($routeParams.item) {
      myFunction($routeParams.itemId);
    }
  });

}]);

I attempted accessing my page using both

http://www.example.com/index.html#/show/123

as well as

http://www.example.com/show/123

but unfortunately, neither method proved successful. Any insights into what may have gone awry would be greatly appreciated.

Answer №1

When I encountered a similar issue in the past, my solution involved implementing a Jquery function.

var retrieveUrlParameter = function retrieveUrlParameter(parameter) {
    var pageURL = decodeURIComponent(window.location.search.substring(1)),
        URLVariables = pageURL.split('&'),
        parameterName,
        j;

    for (j = 0; j < URLVariables.length; j++) {
        parameterName = URLVariables[j].split('=');

        if (parameterName[0] === parameter) {
            return parameterName[1] === undefined ? true : parameterName[1];
        }
    }
};

$scope.data = retrieveUrlParameter('display');

To make it work, you need to adjust the link format to something like:

http://dummy.com/?show=123

This approach resolved the issue for me, but I cannot guarantee its effectiveness in all scenarios. Use it at your own discretion.

Answer №2

Implementing URL parameter passing to my controller was a success thanks to utilizing the $location dependency:

var appController = angular.module('myApplication.controllers', []);

appController.config(['$locationProvider', function($locationProvider) {
  $locationProvider.html5Mode(true);
}]);

appController.controller('AppController', ['$scope', '$location', function($scope, $location) {
  /** Additional functions... */

  /** index.html?itemID=456 */
  var itemID = $location.search().itemID;

  if (itemID) {
    alert("Item ID: " + itemID);
    processItem(itemID);
  }

}]);

The functionality of passing parameters to the controller is functioning well. However, one issue remains: The inclusion of the query parameter on all ngClick buttons throughout the interface, including ones where it may not be desired, such as a navigation back button.

I will dedicate time to addressing this matter and will provide an update once a solution is found.

This insightful blog article greatly assisted me in grasping concepts related to $location.

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