如何在angularjs中从另一个控制器调用一个控制器的功能？

Question

I want to call Listing function of testController from userController. I mark(//) the place from where i want to call function in following code. I am doing this in angularjs

function userController($scope, $http) {

                $scope.SignUp = function() {

                    $http.post('<?php echo site_url('angularjs/addToTable'); ?>', {'uname': $scope.username, 'pswd': $scope.userpassword, 'email': $scope.useremail}
                    ).success(function(data, status, headers, config) {

                        // Here i want to call Listing function of testController ...
                    });
                }
    }
    function testController($scope, $http) {
        $scope.Listing = function() {
                    $scope.users = [];
                    $http.get('<?php echo site_url('angularjs/get_list'); ?>').success(function($data) {

                        $scope.users = $data;
                    });
                }
    }

Answer 1

If you nest these two controllers in your markup, you can access the parent scope functions in the child controller. If not, this function might not belong into a controller, but a service, provider or factory.

<div ng-controller="testController">
  <div ng-controller="userController">

  </div>
</div>

Answer 2

You can also define services that you can then provide to your controllers. Here you could define a service userManagement:

myModule.service('UserManagement', function() {
    this.list = function() {
        //..
    }

    this.signUp = function() {
        //..
    }
  });

This service will be accessible in your controller like this:

testController($scope, $http, UserManagement){
 // insert code here
}