Stop Controller's activity when switch route - javascript

I create single page app by AngularJS and I found my problem. I have function refresh data every 2 minutes by jQuery in route A. When I change to other route, that function in controller is still working. This is my code.
App.js
var newsapp = angular.module('newsAppMD', ['ngRoute']);
newsapp.config(['$routeProvider', function($routeProvider) {
$routeProvider.
when('/news', {
templateUrl: 'templates/news.html',
controller: 'imageNewsCtrl'
}).
when('/news/:nameCat', {
templateUrl: 'templates/news-thumbnail.html',
controller: 'newsPageCtrl'
}).
otherwise({
redirectTo: '/news'
});
}]);
newsapp.controller('imageNewsCtrl', function($scope, $http, $interval, $timeout ) {
$('#bottom-bar').find('#epg').hide();
$scope.updateTimeEPG = 120000;
$scope.fetchFeed = function() {
$http.get("http://wi.th/thaipbs_tv_backend/epg_forJS.php").success(function(response) {
$scope.items = response.Schedule;
console.log($scope.items);
$timeout(function() { $scope.fetchFeed(); }, $scope.updateTimeEPG);
}).then(function() {
$('#bottom-bar').find('.loading').hide();
$('#bottom-bar').find('#epg').show();
});
};
$scope.fetchFeed();
});
newsapp.controller('newsPageCtrl', function($scope, $http, $location) {
// blah blah blah
}]);
I choose /news imageNewsCtrl work. And when I switch to other route, function in imageNewsCtrl still work (I see function print console.log when I changed route). I want to stop function in controller when change route. Thanks for your suggestion everyone. :)

I am not too entirely sure, but try using $stateProvider instead of $routeProvider. If you do, then you need to npm install angular-ui-router (it is a powerful third party module) and replace ngroute. I only user $routeProvider for the .otherwise function. You can also do a lot more cool stuff like onEnter and onExit with $stateProvider. Another thing is I would recommend you to use only Angular instead of jQuery. I do not really see a point of you using both. Use Angular's two-way data binding! Also, if you really want to get into Angular, then I recommend John Papa's style guide. This guys knows what he is talking about for making a great Angular app. I hope this info helps!

Related

Angular $route change url based on route

I'm writing a simple product information management app using angular js. To keep my app as modular as possible i've split it into multiple modules with one module "pim" as startpoint. For each module I want to have a different route, so that it is easy to plug in a new module or remove it without having to maintain a huge route in the pim module config.
Currently I have two routes (the first route):
(function(){
angular
.module("pim")
.config(router)
function router($routeProvider){
$routeProvider
.when("/",{
templateUrl: "view/info.html",
controller: "pimController"
})
.when("/info",{
templateUrl: "view/info.html",
controller: "pimController"
})
.when("/alcohol",{
templateUrl: "view/alcohol.list.html",
controller: "alcoholController"
});
}
})();
The second route
(function(){
angular
.module("alcohol")
.config(router)
function router($routeProvider){
$routeProvider
.when("/alcohol/list",{
templateUrl: "view/alcohol.list.html",
controller: "alcoholController"
})
.when("/alcohol/info",{
templateUrl: "view/alcohol.info.html",
controller: "alcoholController"
});
}
})();
As you can see /alcohol has a templateUrl and a controller, the same as /alcohol/list, but i want to know if there is a simple (standard) way to change to another URL for example /alcohol/list, so that I do not have to repeat the templateUrl and controller and keep this information in the alcohol module, where it belongs.
For example
.when("/alcohol",{
routeTo: "/alcohol/list"
})
Thank you for your help
SOLVED
The option to redirect exists, did not look in the $routeProvider documentation well enough:
.when("/alcohol",{
redirectTo:"/alcohol/list"
});
The code above works
You can use $routeProvider's redirectTo route map.
.when("/alcohol", {
redirectTo: "/alcohol/list"
});
Read more: https://docs.angularjs.org/api/ngRoute/provider/$routeProvider

html5mode doesn't remove hashbangs

I have a gulp connect server running and want to remove hashbangs from the routeProvider I am using in my AngularJS project.
I have this in my app.js:
//Setting HTML5 Location Mode
companiesApp.config(['$locationProvider',
function ($locationProvider) {
$locationProvider.hashPrefix('!');
$locationProvider.html5Mode(true);
}
]);
I know that if I remove the hashPrefix it will work still with http://www.example.com/#example-uri but how do I get rid of that entirely. isn't html5Mode(true) supposed to do that?
Yes, $locationProvider.html5Mode(true); should do that.
But to be able to access pages directly from the browser, you should configure your server to redirect the request to the index page, then call the partial internally. Check this document on angular-ui documentation for how to configure the document to do so.
Try this if may be useful in your scenario
Add only has prefix like $locationProvider.hashPrefix('') to remove Bang prefix...
var app = angular.module('app', []);
app.config(['$routeProvider', '$locationProvider',
function ($routeProvider, $locationProvider)
{
$routeProvider.when('/', {
templateUrl: "app1.html",
controller: "App1Ctrl"
})
.when('/Program1', {
templateUrl: "app2.html",
controller: "App2Ctrl"
});
$locationProvider.hashPrefix("");
}
]);
first add $routeProvider in dependency and then add in last of hashPrefix is null
to remove tha bang prefix.

AngularJS controller is executed every time the view is routed

Every time I change the path through a link like the following
<li>Home</li>
The controller for the view in the router definition gets run again.
config(['$routeProvider', '$locationProvider',
function($routeProvider, $locationProvider) {
// $locationProvider.hashPrefix('!');
$routeProvider.when('/home', {
templateUrl: 'partials/home.html',
controller: 'mainCtrl'
});
$routeProvider.when('/test', {
templateUrl: 'partials/test.html',
controller: 'testCtrl'
});
$routeProvider.otherwise({
redirectTo: '/home'
});
}
]);
I don't think that this is default behavior (I found no mention of it in the documentation), however I can't see what the problem is.
P.S.
I don't have an ng-controller assigned to any DOM element in my templates since I've seen someone else with a similar issue where this was the problem.
It is a default behavior.
Basically controller is function used to argument Angular Scope. So it need to be called each time the page associated with the controller is opened. Each time your page is navigated angular will create new scope.

Routing to non-Angular pages within Angular

I am converting a large server rendered app to use Angular. Because of the size, we are doing it a bit at a time. During this conversion period, part of the app will use Angular and part will not. This means that routing sometimes will route within the Angular app and sometimes it will need to transition from old world to new world (easy) or new world to old world (harder).
Ideally, I would like to specifically route some page transitions within the Angular app (new world) to the proper controllers but then any other page transitions should just fetch new HTML pages (old world).
I can't seem to figure out how to do this. I think I need to use the routeProvider and when / otherwise, but there isn't a lot of documentation that I found which is helpful.
You can't use routeProvider for the old world, since angular routes only direct you within the actual same page.
You could make a placeholder angular route for each legacy route, then in the controller, inject $window and do something like:
$window.location.href = destinationUrl;
Something like: (go to the old world on logout)
app.controller('LogoutCtrl', function ($scope, $window) {
var destinationUrl = 'https://mywebsite.com/';
$window.location.href = destinationUrl;
});
Vice versa, to go back to the angular world, just use a normal link to your angular route:
Link
If you want a catch-all route to redirect to the outside, you can do the following:
otherwise({
controller: 'NotFoundCtrl'
});
...
app.controller('NotFoundCtrl', function($scope, $location, $window) {
var path = $location.path();
$window.location.href="http://test.com" + path;
})
As triggerNZ said, you can always have a controller redirect unhandled routes to the outside. Here is the HTML and Javascript showing how to do it.
HTML
<div ng-app="myApp">
<script type="text/ng-template" id="this.html">
This Page.
</script>
<script type="text/ng-template" id="that.html">
That Page.
</script>
<div>
<ul>
<li>This</li>
<li>That</li>
<li>Other</li>
</ul>
<ng-view></ng-view>
</div>
</div>
Javascript
var app = angular.module("myApp", ['ngRoute']);
app.config(function ($routeProvider, $locationProvider) {
$routeProvider.when('/this', {
templateUrl: 'this.html'
}).when('/that', {
templateUrl: 'that.html'
}).otherwise({
template: "<div></div>",
controller: function ($window, $location, $rootScope) {
if (!$rootScope.isInitialLoad) {
$window.location.href = $location.absUrl();
}
}
});
$locationProvider.html5Mode(true);
});
app.run(function ($rootScope) {
$rootScope.$on('$routeChangeSuccess', function() {
$rootScope.isInitialLoad = (typeof $rootScope.isInitialLoad === "undefined");
});
});

Angular js trigger routing

I have a reset link, which is meant to reset my angular js app...
<a ng-click="resetApp()">reset</a>
I am handling the button press in the main controller...
$scope.resetApp = function(){
if(confirm("You will lose data...")){
$scope.user.reset();
// not sure how to do this in more angular js way
window.location = "/#";
}
}
I am not sure if setting the window.location as I have done is the right way to do things. It works for me, but does not seem like the correct way, and I have not been able to find out ow to do it online.
I have been using the so-called AngularJS way like this, at least the routing is handled by AngularJS rather than browser directly.
function Ctrl($scope, $location) {
$scope.resetApp = function(){
...
$location.url('/');
}
}
The path is what is defined in the Route Provider like this:
app.config(['$routeProvider', function ($routeProvider) {
$routeProvider.
when('/', {
templateUrl: 'index.html',
controller: 'Ctrl'
}).
...

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