Uninitialized variable in AngularJS $scope

Currently, I am in the process of creating a form to update a row within a database table using REST and AngularJS. However, I am encountering an issue where I am unable to access the data due to a $scope.l undefined error appearing on the web console. I am interested in finding out how I can resolve this problem and successfully configure the form to utilize the REST server for updating the existing content.

//Controller designed for editing a specific item
countryApp.controller('EditLocation', function($scope, $http, $routeParams, $location) {  
//
 var id = $routeParams.locid; 
 $scope.activePath = null; 

 $http.get('http://localhost/slimtest2/location/' + id).success(function(data) { 
  $scope.location = data;

}); 

$scope.editrel = function() { 
  var emP = { 
      location_id : id, 
      location_title : $scope.l.location_title,
      location_latitude : $scope.l.location_latitude,
      location_longitude : $scope.l.location_longitude
   }


  //Convert data to JSON string
  var lucy = JSON.stringify(emP); 
    alert(lucy); 

  $http.put('http://localhost/slimtest2/location/1/edit', lucy); 


}

}); 

Answer №1

It seems like there might be a child scope in the view that's causing this issue. If you're using something like:

<input ng-model="l.location_title">

and l isn't coming from the parent scope, Angular will create it within the current scope.

To fix this, add the following declaration in the controller:

$scope.l={};

Now, if the element is within a child scope, the l object will already exist and reference the object in the controller.

If this doesn't solve the issue, please provide more code so we can further assist.

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