Checking a condition before loading a state in Angular's UI routing

Question

Checking a condition before loading a state in Angular's UI routing

I am currently using angular's ui-router to implement nested routing based on a specific condition. I need to check this condition before loading a state.

    .state('main.home', {
        url: "/:cnt",
        abstract: true,
        templateUrl: function ($stateParams) {
            return template1;
        },
        controller: "myController",
        resolve: {
            //Some model
            }],

            lazy: ['$ocLazyLoad', '$stateParams', function ($ocLazyLoad, $stateParams) {
               //lazily loaded controllers
            }]
        },
        onEnter: updateAppValues,
    }).state('main.home.default', {
        url: '',
        templateUrl: function ($stateParams) {
            return template2;
        },
        resolve: {
            lazy: ['$ocLazyLoad', function ($ocLazyLoad) {
                //lazily loaded controllers
            }]
        },
        controller: 'myDefaultController',
    })

In essence, I require the nested router main.home.default to be loaded only if a specific condition is met.

if(something){
    //load state main.home.default
}

Could you please guide me on how to accomplish this?

javascript angularjs angular-ui-router angular-routing

Answer 1

Answer №1

If you want to capture the event of route changing, you can use the following code snippet:

$rootScope.$on("$routeChangeStart", function(event, next, current) {
    if(next.$$route == 'routeYouWantToAvoid') { // Customize as needed
        $state.transitTo('main.home.default');
    }
});

next refers to the upcoming route.
current represents the current route.

For more details, refer to the official documentation.

Answer 2

If you want to capture the event of route changing, you can use the following code snippet:

$rootScope.$on("$routeChangeStart", function(event, next, current) {
    if(next.$$route == 'routeYouWantToAvoid') { // Customize as needed
        $state.transitTo('main.home.default');
    }
});

next refers to the upcoming route.
current represents the current route.

For more details, refer to the official documentation.

Answer 3

Answer №2

One way to customize the resolve function in main.home.default is by using an if condition like this:

 resolve:{
    "authentication":function($location){   
        if('Your Custom Condition'){ 
            //Do something specific
        }else{
            $location.path('/');    //redirect user back to home.
            alert("Access denied, you are not authorized");
        }
    }
}

Answer 4

One way to customize the resolve function in main.home.default is by using an if condition like this:

 resolve:{
    "authentication":function($location){   
        if('Your Custom Condition'){ 
            //Do something specific
        }else{
            $location.path('/');    //redirect user back to home.
            alert("Access denied, you are not authorized");
        }
    }
}

Answer 5

Answer №3

app.run(function($rootScope, $state) {
   $rootScope.$on("$stateChangeStart", function(event, toState, toParams, fromState, fromParams) { 
     if (toState.name == 'login'){ //check if the state is login
    //redirect to login page
      }
   });
});

Do you find this information helpful? or

app.run(function($rootScope, $state){
   $rootScope.$on("$stateChangeStart", function(event, toState, toParams, fromState, fromParams) {
      if(*your condition*) {
         $state.transitTo('stateYouWantToGo')
         event.preventDefault()
       }
    });
 });

Answer 6

app.run(function($rootScope, $state) {
   $rootScope.$on("$stateChangeStart", function(event, toState, toParams, fromState, fromParams) { 
     if (toState.name == 'login'){ //check if the state is login
    //redirect to login page
      }
   });
});

Do you find this information helpful? or

app.run(function($rootScope, $state){
   $rootScope.$on("$stateChangeStart", function(event, toState, toParams, fromState, fromParams) {
      if(*your condition*) {
         $state.transitTo('stateYouWantToGo')
         event.preventDefault()
       }
    });
 });

Checking a condition before loading a state in Angular's UI routing

Answer №1

Answer №2

Answer №3

Similar questions

React Js: Data not being properly updated in the application state

Is there a way to invoke a function using $scope within HTML that has been inserted by a directive in AngularJS?

"Counting the clicks on the filter button in React

Can the front end acquire JSON data from a URL, save it as a JSON file with a unique name, and store it in a designated location?

How can I retrieve data from a script tag in an ASP.NET MVC application?

What is the best way to integrate new entries into the data source of a Kendo UI grid?

Transfer an URL parameter from the URL to the server using PHP or JavaScript

Tips for creating various instances of a single type within mock data

Regain the cursor focus on a text input field once it has been disabled and re-enabled using AngularJS

Difficulty arises when Jest tests struggle to interpret basic HTML tags within a React Component

linking to a page that shows the user's chosen option from a dropdown menu

Unlocking the full potential of AngularJS comparator

Assess html code for Strings that include <% %> tags along with embedded scripts

NextJS for Self-hosting Fonts

Invoking Ajax within a for loop

Bootstrap Carousel with descriptions in a separate container without any display or hiding transitions

What is the best way to adjust a map to completely fill the screen?

Changing the input programmatically does not trigger an update in the Angular model

Is it possible to access a variable outside of the immediate lexical scope in sails.js when using nested population?

Received an error while attempting to install react-router-dom