just_user just_user - 1 month ago 12
AngularJS Question

angularjs $scope.$apply() gives this error: Error: [$rootScope:inprog]

I'm trying to update some texts on a page that is part of $scope. But I keep getting this error:

Error: [$rootScope:inprog] [http://errors.angularjs.org/1.2.15/$rootScope/inprog?p0=%24apply][1]
at Error (native)
at https://ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.min.js:6:450
at m (https://ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.min.js:101:443)
at h.$apply (https://ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.min.js:108:301)
at h.$scope.changeLang (http://treenovum.es/xlsmedical/js/medical-app.js:80:16)
at https://ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.min.js:169:382
at https://ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.min.js:186:390
at h.$eval (https://ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.min.js:108:40)
at h.$apply (https://ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.min.js:108:318)
at HTMLAnchorElement.<anonymous> (https://ajax.googleapis.com/ajax/libs/angularjs/1.2.15/angular.min.js:186:372)


Obviously I'm doing something wrong. :)
Any ideas of how I can fix this? I want the page to update to the new variables in the scope.

This is the code I'm using for updating:

medicalApp.controller('MainCtrl', function($scope, $cookies, getTranslation) {
getTranslation.get(function(data){
$scope.translation = data;
});

$scope.changeLang = function (lang) {
console.log(lang);
$cookies.lang = lang;
$scope.$apply(function(){
getTranslation.get(function(data){
$scope.translation = data;
console.log(JSON.stringify($scope.translation));
});
});
};
});


the html:

<body ng-controller="MainCtrl">
...
<div class="header-lang col-xs-4">
<p>
<a href="#" ng-click="changeLang('de')">DE</a> |
<a href="#" ng-click="changeLang('fr')">FR</a></p>
<div>{{ translation.text }}</div> <---- Example variable I want updated.
...


I'm also using ngRoute with separate controllers for each page I load, if that has anything todo with it?

Answer

You are using $scope.$apply(...) inside the function changeLang so you are getting the common 'already in a digest' error. You don't need to put the call to getTranslation inside a $scope.$apply(...) block because ng-click already has you taken care of. Yank that out and it should just work. Also, I'd recommend running with a non-minified version of angular for dev so you can see better errors in your console.