Using AngularJS ng-if to dynamically show header content according to the current route

Having trouble with my Single Page Application (SPA) where the header needs to change based on the user's route location. The code I've written seems correct, but I keep getting an error: TypeError: undefined is not a function

Here's what the code looks like:

<html lang="en" ng-app="configApp">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>Configuration Admin</title>

    <link href="_/css/bootstrap.css" rel="stylesheet">
    <link href="_/css/main-styles.css" rel="stylesheet">

</head>
<body>
<div class="container">
    <div class="row">
        <div ng-include="'templates/headers/nav-icons.html'" ng-if="showNavIcons"></div>
        <div ng-include="'templates/headers/nav-logo.html'" ng-if="hideNavIcons"></div>
    </div>
</div>

<script src="_/js/bootstrap.js"></script>
<script src="_/js/main-scripts.js"></script>
<script src="_/js/angular.min.js"></script>
<script src="_/js/angular-route.min.js"></script>
<script src="_/js/ui-bootstrap-tpls-0.11.0.min.js"></script>
<script src="_/js/router.js"></script>

</body>
</html>

JS

var configApp = angular.module("configApp", ['ngRoute','ui.bootstrap'])

 .config(function($routeProvider){
    $routeProvider.when('/dashboard', {
        templateUrl: 'templates/dashboard/home.html'
    })

    .when('/organizations', {
        templateUrl: 'templates/dashboard/organizations/organizations-title.html',
        controller: 'OrganizationController',
        activetab: 'organizations'
    })

    .when('/program-details-edit', {
        templateUrl: 'templates/dashboard/organizations/programs/program-details-edit.html',
        controller: 'ProgramDetailsEdit'
    })
    .otherwise( {redirectTo: '/dashboard'} );
});

configApp.controller('OrganizationController', function($scope) {});
configApp.controller('SideNavCtrl', function($scope, $location) {
    $scope.isActive = function(route) {
        return route === $location.path();
    }
});

configApp.controller('ProgramDetailsEdit', ['$scope', '$location', '$route', function($scope, $route, $location) {
    $scope.showNavIcons = $location.path() === '/program-details-edit';
}]);

configApp.controller('OrganizationController', ['$scope', '$location', '$route', function($scope, $route, $location) {
    $scope.hideNavIcons = $location.path() === '/organizations';
    $scope.$route = $route;
}]);

Answer №1

In order to make the elements functional, you must include the controllers by adding the attribute "ng-controller='controllerName'". Any type errors can be resolved by checking for undefined values and converting them to false using !!variable.

Additionally, consider utilizing UI-Router for a simpler and more powerful routing solution compared to $routeProvider. With UI-Router, you can integrate the following code snippet to achieve similar functionality:

<div class="row" ng-controller="appController">
       <!-- Header displayed during program editing-->
       <div ng-include="'templates/headers/nav-icons.html'" ng-if="state.name == 'programEditor'">
</div>

Answer №2

The solution could involve adding the ng-controller tag to your HTML in Chrome browser. Here's an example of how it should be implemented:

Answer №3

Utilizing the angularJS ui router instead of ngRouter proved to be the simple solution to the problem. Grateful for the valuable guidance that led me to the ideal resolution.

Here is the approach I took:

Javascript

var configApp = angular.module("configApp", ['ngRoute','ui.bootstrap','ui.router'])

 .config(function($stateProvider, $urlRouterProvider) {

    // default route
    $urlRouterProvider.otherwise("/dashboard");

    // ui router states
    $stateProvider
        .state('cas', {
            url: "/cas",
            views: {
                header: {
                    templateUrl: 'templates/headers/nav-logo.html',
                    controller: function($scope) {}
                },
                content: {
                    templateUrl: 'templates/dashboard/organizations/organizations-title.html',
                    controller: function($scope) {}
                }

            }
        })
        .state('applications', {
            url: "/applications",
            views: {
                header: {
                    templateUrl: 'templates/headers/nav-logo.html',
                    controller: function($scope) {}
                },
                content: {
                    templateUrl: 'templates/dashboard/application/applications-title.html',
                    controller: function($scope) {}
                }
            }
        })

        .state('organizations', {
            url: "/organizations",
            views: {
                header: {
                    templateUrl: 'templates/headers/nav-logo.html',
                    controller: function($scope) {}
                },
                content: {
                    templateUrl: 'templates/dashboard/organizations/organizations-title.html',
                    controller: function($scope) {}
                }
            }
        })

        .state('program-details', {
            url: "/program-details",
            views: {
                header: {
                    templateUrl: 'templates/headers/nav-icons.html',
                    controller: function($scope) {}
                },
                content: {
                    templateUrl: 'templates/dashboard/organizations/programs/program-details.html',
                    controller: function($scope) {}
                }
            }
        })

// Other states...

});

HTML

<html lang="en" ng-app="configApp">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>Configuration Admin</title>

    <!-- Bootstrap CSS -->
    <link href="_/css/bootstrap.css" rel="stylesheet">
    <link href="_/css/main-styles.css" rel="stylesheet">


</head>
<body>
<div class="container">
    <div class="row" ng-controller="NavCtrl">
        <div ui-view="header"></div>
    </div>

    <section class="main-content">
        <div class="row">
            <div class="col-xs-3 sidebar">
                <nav id="sidebar-pullout">
                    <div id="menu-listings"></div>
                </nav>
                <div ng-controller="SideNavCtrl">
                    <ul class="list-unstyled side-nav">
                        <li ng-class="{active:isActive('/cas')}"><a id="showCas" href="#/cas" ui-sref="cas">cas</a></li>
                        
                    </ul>
                </div>
            </div>
            <div class="col-xs-9 main-page">
                <div ui-view="content"></div>
            </div>
        </div>
    </section>

</div>

<script src="_/js/bootstrap.js"></script>
<script src="_/js/main-scripts.js"></script>
<script src="_/js/angular.min.js"></script>
<script src="_/js/angular-route.min.js"></script>
<script src="_/js/angular-ui-router.min.js"></script>
<script src="_/js/ui-bootstrap-tpls-0.11.0.min.js"></script>
<script src="_/js/router.js"></script>

</body>
</html>

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