Directing a controller assignment in AngularJS 1.2 via a directive

Transitioning from angularJS 1.0 to 1.2 has presented a challenge for me when it comes to assigning a controller to a directive with a distinct scope, without explicitly defining the controller in my HTML using ng-controller.

Let's look at this scenario:

var myApp=angular.module('myApp',[])
.controller('parentCtrl',function($scope,$element,$attrs) {
  $scope.helloworld = function(){                                                   
    console.log('hello world from ParentCtrl controller')
  }
})

.controller('childCtrl',function($scope,$element,$attrs) {
    $scope.helloworld = function(){ 

       console.log('hello world from ChildCtrl controller')

    }
})
.directive('ngParent', function() {
  return {
    controller:'ParentCtrl'
  }
})
.directive('ngChild', function() {
  return {
      controller:'ChildCtrl',
      scope:{},
      link:function(scope,element,attrs){

      }
   }
})

And in the HTML:

  <body ng-app="myApp" ng-parent>
      <button ng-click="helloworld()">Parent Scope click </button>
      <div ng-child>
         <button ng-click="helloworld()">Child Scope click </button>
      </div>  
  </body>

Currently, both buttons will log "hello world from ParentCtrl controller". However, changing the parameter scope:{} to scope:true in the ngChild directive results in each button calling their respective scopes' helloworld function. Yet, this solution does not create the clean scope I am aiming for.

How can I achieve a clear scope in a directive using angular 1.2, without specifying the controller in my view?

Best regards, Andreas

Answer №1

Due to the lack of creating a separate scope, both directives share the same scope leading to the function "helloworld" being overwritten. To avoid this issue, consider renaming the function or establishing a new scope.

Additionally, it appears that the usage of directives is incorrect. Instead of defining directives and linking controllers to them, try utilizing ng-controller for each controller to have their own scope with the helloworld function defined within. If necessary, create a directive to access and execute the function when required.

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