AngularJS Custom Navigation based on User Roles

Question

AngularJS Custom Navigation based on User Roles

I am currently developing a small web application using angular. My goal is to implement role-based navigation in the app. However, I am facing an issue where the isAdmin function does not seem to be getting called on page load, resulting in only the foo anchor tag being visible.

HTML

<body ng-controller='AccountController'>
    <nav class="navbar navbar-default">
      <ul>
          <li><a href='google.com'>foo</a></li>
          <li ng-if="isAdmin()"><a href='google.com'>bar</a></li>
      </ul>
    </nav>
</body>

AccountController

var app = angular.module('appControllers', []);

app.controller = angular.controller('AccountController', ['$scope', 
function($scope, $http) {
    $scope.isAdmin = function() {
        return true; //Just as a test to make sure it works
    }
}]);

My ultimate goal is for this functionality to hit a web service that will determine the administrator status, but for now, I just want to get it working.

Thank you in advance for all your assistance,

Andres

javascript angularjs

Answer 1

Answer №1

In the given scenario, it is suggested to eliminate the braces for the code to function correctly. However, a more efficient approach would be to implement a custom directive that ensures functionality. For instance:

<section class="custom-section" display-for-role="ROLE_A,ROLE_B"></section>

This method allows for better management of user roles and their corresponding permissions.

appModule.directive('managePermissions', ['someState', function (appState) {
  return {
    restrict: 'A',
    link: function (scope, element, attrs) {
      var currentUser = someState.getCurrentUser();
      scope.$watch(someState.watchCurrentUser, function(newVal, oldVal){
         if (newVal === oldVal){
           return;
         }
        toggleVisibility(element,attrs,newVal);
      });
      toggleVisibility(element,attrs,currentUser);
    }
  }

var toggleVisibility = function(element,attrs,user){
element.hide();
if (user) {
  var role = attrs.displayForRole;
  if (role){
    role.split(',').forEach(function(item){
      if (item === user.role){
        element.show();
      }
    })
  }
}};

Answer 2

In the given scenario, it is suggested to eliminate the braces for the code to function correctly. However, a more efficient approach would be to implement a custom directive that ensures functionality. For instance:

<section class="custom-section" display-for-role="ROLE_A,ROLE_B"></section>

This method allows for better management of user roles and their corresponding permissions.

appModule.directive('managePermissions', ['someState', function (appState) {
  return {
    restrict: 'A',
    link: function (scope, element, attrs) {
      var currentUser = someState.getCurrentUser();
      scope.$watch(someState.watchCurrentUser, function(newVal, oldVal){
         if (newVal === oldVal){
           return;
         }
        toggleVisibility(element,attrs,newVal);
      });
      toggleVisibility(element,attrs,currentUser);
    }
  }

var toggleVisibility = function(element,attrs,user){
element.hide();
if (user) {
  var role = attrs.displayForRole;
  if (role){
    role.split(',').forEach(function(item){
      if (item === user.role){
        element.show();
      }
    })
  }
}};

Answer 3

Answer №2

To eliminate unnecessary parentheses after 'isAdmin', try revising your code like this:

function($scope, $http) {
    $scope.isAdmin = function() {
        return true; //This is just a test to ensure it functions correctly
    }
}

I hope this suggestion proves helpful...

Answer 4

To eliminate unnecessary parentheses after 'isAdmin', try revising your code like this:

function($scope, $http) {
    $scope.isAdmin = function() {
        return true; //This is just a test to ensure it functions correctly
    }
}

I hope this suggestion proves helpful...

AngularJS Custom Navigation based on User Roles

Answer №1

Answer №2

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