How to modify HTML content based on angular controller

Question

I am trying to build a login page and a functionality page using angularjs SPA.

I have following controller:
 - LoginController 
 - PredictionController

And following single page:
 - Home.html : Binded to LoginController
 - trend.html : Binded to PredictionController
 - index.html : Has no controller

I have navigation panel in index.html and I want to modify(add or remove) number of tabs based on login. I don't want to write navigation panel logic in each page as it is reusable. I am unable to figure out way to do this using additional controller because I am using ng-route which I guess won't allow me to use multiple controller for same page.

Here is my html code snippet for index.html:

Here is the code for controller:

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

    app.factory('UserVerified', function() {
        return

 {bool: false}; 
        });


    app.config(function ($routeProvider) {
        $routeProvider
        .when('/',{
            templateUrl: 'pages/home.html',
            controller: 'LoginController'
        })
        .when('/Trend', {
            templateUrl: 'pages/trend.html',
            controller: 'PredictionController'  
        })  

    });

    app.controller('LoginController', ['$scope', '$http', 'UserVerified', function($scope, $http, UserVerified){
        $scope.hasPermission = UserVerified.bool;

    $scope.getAuthentication = function(){
        console.log($scope.userId, $scope.pwd)
        $http.get('/getAuth', {
                params: { user_id: $scope.userId, pwd: $scope.pwd }
        }).success(function (response){
            console.log(response);
            UserVerified.bool = response;
            $scope.hasPermission = UserVerified.bool;
        }); 
    }

}]);

I'm not sure if the information is enough please edit or let me know if i'm missing some information.

Matt · Accepted Answer

I believe you're going to have to move your ng-app directive up to the body, and create a NavigationController which can require your UserVerified factory and help maintain the state of the navigation.

You could add the ng-controller directive to your navbar explicitly, and your router should work the same.

The HTML might look something like this.

NavigationController

app.controller('NavigationController', function($scope, UserVerified) {
    $scope.$watch(function() {
        return UserVerified.bool;
    }, function(state, oldState) {
        $scope.loggedIn = state;
    });
});

How to modify HTML content based on angular controller

Answers (1)

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