I am working with AngularJS and using the ngRoute for routing.
I was wondering if this is normal behavior for Angular when it routes to the "otherwise" part and activates all controllers?
var angularApp = angular.module('AngularApp', ['ngRoute']);
angularApp.config(['$routeProvider',
function ($routeProvider) {
$routeProvider
.when('/ExpenseOverview', {
controller: 'ExpenseOverviewController',
templateUrl: 'Angular/Views/ExpenseOverview.vbhtml'
})
.when('/AddExpense',
{
controller: 'AddExpenseController',
templateUrl: 'Angular/Views/AddExpense.vbhtml'
})
.otherwise({ redirectTo: '/ExpenseOverview' });
}]);
I have put an alert at the very top in each controller, even my factory. And on startup, all alerts are shown. Instead of going to "ExpenseOverview" at first, it checks both my controllers and not just the one that is bound to "/ExpenseOverview".
What could be the cause of this?
EDIT: Knowing it's normal for Angular to access all controllers on startup, the main problem isn't fixed yet. This is explained in another thread on StackOverflow. I thought this had something to do with it, because I had no idea that it was normal behavior for Angular to do this.
I could say that this thread is closed, because I have an answer to my question now.
Angular does not access every controller on start up, however, ngRoute does. Any initialization code in a controller that has a corresponding route entry in $routeProvider, will run at initialization.
Here's an example of this at play: http://plnkr.co/edit/WsvbKhcR74yoX80bskdb?p=preview
<!DOCTYPE html>
<html ng-app="app">
<head>
<script data-require="angular.js#*" data-semver="1.3.15" src="https://code.angularjs.org/1.3.15/angular.js"></script>
<script data-require="ng-route#*" data-semver="1.2.0" src="http://code.angularjs.org/1.2.0-rc.3/angular-route.js"></script>
</head>
<body ng-controller="main">
<h1>Hello {{test}}!</h1>
<div ng-view="">Hello?</div>
<script>
var app = angular.module('app', ['ngRoute']);
app.config(function ($routeProvider) {
$routeProvider
.when('/route1', {
controller: 'con1',
templateUrl: 'view1'
})
.when('/route2',
{
controller: 'con2',
templateUrl: 'view2'
})
.otherwise({ redirectTo: '/route1' });
});
app.controller('main', function($scope){
alert('1');
$scope.test = 'Yo.';
});
app.controller('con1', function($scope){
alert('2');
$scope.value = 'value1';
});
app.controller('con2', function($scope){
$scope.value = 'value2'
});
</script>
<script type="text/ng-template" id="view1">
View 1 {{value}}
</script>
<script type="text/ng-template" id="view2">
View 2 {{value}}
</script>
</body>
</html>
Related
I'm working on my first app. When I open it in the webbrowser I get this error: Uncaught ReferenceError: controller is not defined
at app.js:3
at app.js:15
I got this error after I created the app.js file and tried to link my controller.js to it. Also the routeProvider doesn't seem to work yet. And my placeholders stopt working, which did work before.
I simplified my code to keep it readable. I've got more html files and use bootstrap in combination with JQuery and CSS. Does someone know what's going wrong here?
app.js
(function(){
var myApp = angular.module('myApp', ['ngRoute']).controller('controller', controller)
.config(function($routeProvider, $locationProvider){
$locationProvider.html5Mode(true);
$routeProvider
.when('/main', {
templateUrl: '../main.html',
controller: 'controller'
})
.otherwise({redirectTo: '../main'});
});
})();
controller.js
(function() {
angular.module('controller', ['ngRoute'])
.controller('controller', ['$scope', function ($scope) {
}]);
})();
index.html
<!DOCTYPE html>
<html data-ng-app = "myApp">
<head>
<meta charset="utf-8"/>
<title> Who Brings What </title>
</head>
<body>
<div class="container">
<nav class="navbar navbar-default">
/*more code here */
</nav>
</div>
<div data-ng-view></div>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.min.js"> </script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular- route.js"></script>
<!--<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular- route.js"> </script>-->
<script src = "../controller.js"></script>
<script src = "../app.js"></script>
</body>
</html>
main.html
<div>
Main Body
</div>
There are few issues with your code,
(i)Since you have defined controller separately in a single file, you can safely remove it from the initial module.
function(){
var myApp = angular.module('myApp',['ngRoute'])
myApp.config(function($routeProvider, $locationProvider){
$locationProvider.html5Mode(true);
$routeProvider
.when('/main', {
templateUrl: './main.html',
controller: 'controller'
})
.otherwise({redirectTo: '/main'});
});
})();
(ii) You do not need to have ngRoute injected twice, You can just use the globally declared module
(function() {
app.controller('controller', ['$scope', function ($scope) {
}]);
})();
DEMO
I have this simple Angular app with ngRoute, a single route defined and the default redirecting to the same (in index.html):
<script src="http://code.angularjs.org/1.2.14/angular.min.js"></script>
<script src="https://code.angularjs.org/1.2.28/angular-route.min.js"></script>
<script>
var app = angular.module('myApp', ['ngRoute']);
app.run(function($rootScope) {
$rootScope.location = window.location.href.substring(0, window.location.href.lastIndexOf('#'));
});
app.config(function ($routeProvider) {
$routeProvider
.when('/page', {
controller: 'PageController',
templateUrl: 'page.html'
})
.otherwise({
redirectTo: '/page'
});
});
app.controller('PageController', function ($scope, $rootScope) {
});
</script>
<div ng-app="myApp">
<div ng-view></div>
</div>
The page.html displays the $rootScope.location:
{{$root.location}}
When I access the page with by using directly index.html#/page, it shows the location as expected, but when accessing it by just index.html and then it redirecting me to index.html#/page, the $rootScope.location remains empty.
Can someone explain me why?
Meanwhile, I find it.
window.location.href.lastIndexOf('#') returned -1 while accessing it via index.html and the statement returned a substring from 0 to -1 which is empty.
I'm trying to create a simple website using angular as front-end.
Is there a way to create partial views and routing without having a webserver?
I've been trying to do so, but I keep getting this error:
Uncaught Error: [$injector:modulerr]
Here's my code: index.html
<!DOCTYPE html>
<html lang="en" ng-app="cerrajero">
<head>
<meta charset="UTF-8">
<title>Cerrajero</title>
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
</head>
<body ng-controller="MainCtrl">
<div ng-view></div>
<script type="text/javascript" src="js/jquery-1.11.3.min.js"></script>
<script type="text/javascript" src="js/bootstrap.min.js"></script>
<script type="text/javascript" src="js/angular.min.js"></script>
<script type="text/javascript" src="js/angular-route.min.js"></script>
<script src="js/app.js"></script>
<script type="text/ng-template" id="partials/contact.html" src="partials/contact.html"></script>
<script type="text/ng-template" id="partials/services.html" src="partials/services.html"></script>
<script type="text/ng-template" id="partials/home.html" src="partials/home.html"></script>
</body>
</html>
and the app.js:
var app = angular.module('cerrajero', []);
app.config([function ($locationProvider, $routeProvider) {
$locationProvider.html5Mode(true);
$routeProvider.
when('/services', {
template: 'partials/services.html'
}).
when('/contact', {
template: 'partials/contact.html'
}).
when('/home', {
template: 'partials/home.html'
}).
otherwise({
redirectTo: '/home',
template: 'partials/home.html'
});
}]);
function MainCtrl ($scope) {
};
What am I doing wrong?
edit
I've added the ngRoute but I still get the same error when I open the index.html file in the browser.
var app = angular.module('cerrajero', ['ngRoute']);
app.config([function ($locationProvider, $routeProvider) {
$locationProvider.html5Mode(true);
$routeProvider.
when('/services', {
template: 'partials/services.html'
}).
when('/contact', {
template: 'partials/contact.html'
}).
when('/home', {
template: 'partials/home.html'
}).
otherwise({
redirectTo: '/home',
template: 'partials/home.html'
});
}]);
function MainCtrl ($scope) {
};
edit 2
Here's the files on github:
https://github.com/jsantana90/cerrajero
and here's the website when it loads:
http://jsantana90.github.io/cerrajero/
edit 3
I've manage to get rid of the error by having the following code:
var app = angular.module('cerrajero', ['ngRoute']);
app.config(['$locationProvider', '$routeProvider', function ($locationProvider, $routeProvider) {
$locationProvider.html5Mode(false);
$routeProvider.
when('/services', {
template: 'partials/services.html'
}).
when('/contact', {
template: 'partials/contact.html'
}).
when('/home', {
template: 'partials/home.html'
}).
otherwise({
redirectTo: '/home',
template: 'partials/home.html'
});
}]);
app.controller('MainCtrl', function ($scope) {
});
I added this app.config(['$locationProvider', '$routeProvider', function ($locationProvider, $routeProvider) {
But now my page is blank. It doesn't redirects or anything.
Have I placed everything how it's suppose to go?
edit 4
I forgot to change ui-view to ng-view. Now it works but it's showing in the view: partials/home.html instead of the actual view.
edit 5
Ok so, after having this final code:
var app = angular.module('cerrajero', ['ngRoute']);
app.config(['$locationProvider', '$routeProvider', function ($locationProvider, $routeProvider) {
$routeProvider.
when('/services', {
templateUrl: './partials/services.html'
}).
when('/contact', {
templateUrl: './partials/contact.html'
}).
when('/home', {
templateUrl: './partials/home.html'
}).
otherwise({
redirectTo: '/home'
});
}]);
app.controller('MainCtrl', function ($scope) {
});
I get this error:
XMLHttpRequest cannot load file:///partials/home.html. Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https, chrome-extension-resource.
Now I'm guessing this is because I don't have a webserver running. How do I get it to work without a webserver?
solution
When I uploaded the files to github it seems to work there, but not locally.
Looks like you are using ngRoute and forgot to include it!
First load angular-route.js after loading angular.js. The inject ngRoute as a module:
var app = angular.module('cerrajero', ['ngRoute']);
Try removing the array syntax brackets from inside your config function. I believe there are two different ways of invoking these functions, either with a standalone function or with an array for any minification processes.
You should either one of the following:
app.config(function ($locationProvider, $routeProvider) {
// your code here
});
Or define the variable names with the array syntax for use in minifiers
app.config(['$locationProvider', '$routeProvider', function ($locationProvider, $routeProvider) {
// your code here
}]);
When you pass in an array to the config function, I believe Angular is expecting the first parameters to be a string value.
You should use ui-router instead of ng-route. It will allow you to nest views. Most current Angular projects use ui-router. ui-router scotch.io
Also, for your controller try app.controller('MainCtrl', function($scope){...});
Replace
var app = angular.module('cerrajero', []);
with
var app = angular.module('cerrajero', ['ngRoute']);
I am trying to implement a navigation into a webpage using angularJS. The problem is that the route does not work at all. The browser console does not give any errors and the ng-view just does not show the templatesUrls.
route.js
var routeApp = angular.module('myApp', ['ngRoute']);
routeApp.config(function($routeProvider) {
$routeProvider
.when('/', {
templateUrl: 'partials/task.html',
controller: 'TraineesController'
})
.when('/technology', {
templateUrl: 'partials/technology.html',
controller: 'TraineesController'
})
.otherwise({redirectTo:"/technology"});
});
Index.html
<html ng-app="myApp">
<head>
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css"/>
<link rel="stylesheet" type="text/css" href="css/taskman.css"/>
<link href="http://fonts.googleapis.com/css?family=Open+Sans:400,600,300,700" rel="stylesheet" type="text/css">
<script type="text/javascript" src="js/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.10/angular-route.js"></script>
<script type="text/javascript" src="app/route.js"></script>
<script type="text/javascript" src="app/app.js"></script>
</head>
<body>
<a href="#/technology" class="btn btn-sm btn-danger nav-button-margin">
<i class="glyphicon glyphicon-user"></i> Account panel
</a>
<div class="col-sm-12">
<div ng-view></div>
</div><!-- Closing col-sm-12-->
</body>
</html>
app.js
var app = angular.module('myApp', []);
app.controller('TraineesController', function($scope, $http, $log) {
getTrainee(); // Load all available tasks
function getTrainee(){
$http.post("ajax/getTrainee.php").success(function(data){
$scope.trainees = data;
});
};
});
task.html
<div class="widget-box" id="recent-box" ng-controller="TraineesController">
Random text tables
</div>
remove the ; from here:
.when('/technology', {
templateUrl: 'partials/technology.html',
controller: 'TraineesController'
}) // <-----here you have a ; remove it and it will work.
.otherwise({redirectTo:"/technology"});
; broke the chaining and caused a syntax error there.
update:
you can remove this controller:
<body ng-controller="TraineesController">
and instead you can place the controller in the respective templates.
checkout this plunkr demo.
I've made two different plunkers, the first one is a plain app just to do an example of routes magic with angular...
First example, basic routes
var app = angular.module('plunker', ['ngRoute']);
app.controller('MainCtrl', function($scope) {
$scope.technology = 'this is the tech page';
$scope.task = 'this is the task';
});
app.config(['$routeProvider',
function($routeProvider) {
$routeProvider
.when('/technology', {
templateUrl: 'technology.html',
controller: 'MainCtrl'
})
.when('/task', {
templateUrl: 'task.html',
controller: 'MainCtrl'
})
.otherwise({
redirectTo: '/technology'
});
}
]);
The second example is an myApp example based on your application, it's basicaly your application but slightly different...
Second example, your app
// I like to keep the app.js file "clean", what means that this file will only
// load the app modules and declare the DI of the app...
var app = angular.module('myApp', [
'ngRoute', // ngRoutes directive from angularjs
'myAppControllers', // controllers module, u can add how controllers wtv u need
'myAppRoutes', // routes module, you can keep the routes configs separated or in the same file
]);
// start the modules, other way to do this is to put this lines in every
// single controllers or route file, what is ugly
angular.module('myAppRoutes',[]);
angular.module('myAppControllers',[]);
I'm trying to put together a basic angularjs web page through django (but not really using django for this example). I tried to copy an example exactly, but it's not working. The partial and the controller are not loading. The url is updated, so I know the app is loading. But I don't see it hitting my web server at all for the partial or the data. Help would be appreciated.
Here is the simplest code I could put together.
test.html:
<!doctype html>
<html ng-app="ciqApp">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.14/angular.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.14/angular-route.js"></script>
<script type="text/javascript" src="js/app.js"></script>
<script type="text/javascript" src="js/controllers.js"></script>
</head>
<body>
TEST
<div ng-view>
</div>
</body>
</html>
js/app.js
var ciqApp = angular.module('ciqApp', [
'ngRoute',
'ciqControllers'
]);
ciqApp.config(['$routeProvider',
function($routeProvider){
$routeProvider.
when('/questions', {
templateURL: '/static/partials/question-list.html',
controller: 'QuestionListCtrl'
}).
otherwise({
redirectTo: '/questions'
});
}]);
js/controllers.js
var ciqControllers = angular.module('ciqControllers', []);
ciqControllers.controller('QuestionListCtrl', ['$scope', '$http',
function ($scope, $http) {
$http.get('/get_questions').success(function(data) {
$scope.questions = data;
});
}]);
TemplateURL should be TemplateUrl. Also, you can try to remove the first slash from your templateUrl path and see if that makes a difference: So:
templateURL: '/static/partials/question-list.html',
becomes:
templateUrl: 'static/partials/question-list.html',