Executing ng-click to access outer controller from within nested ng-controllers

I'm exploring the potential of using angularjs to develop a dynamic page with the following capabilities:

  1. It starts off blank, except for a dropdownlist that automatically populates with various apps.
  2. Upon selecting an app from the list, relevant data about it will be fetched from another controller and displayed on the page.

Although I've managed to achieve auto-population of the dropdownlist, I'm encountering difficulties in making the page dynamic with ng-click. I suspect this issue stems from the nested ng-controllers. Can anyone provide assistance? The code is provided below:

The primary html page with usage of ng-init:

    <div ng-controller="chartsuccessfulapploginsController">
        <div ng-controller="allappsController" ng-init="add()">
            <form name="myForm">
                <label for="repeatSelect"> Repeat select: </label>
                <select name="repeatSelect" id="repeatSelect" ng-model="data.repeatSelect" ng-change="chartsuccessfulapploginsController.add(value)">
            <option ng-repeat="option in data.availableOptions" ng-init="Index = $index"  value="{{data.availableOptions[Index].id}}" ng-model="APPID" >{{data.availableOptions[Index].name}}</option>
        </select>
            </form>
            <hr>
            <p> {{data}}</p>
            <p> {{data.id[0]}}</p>
            <p> {{data.name[0]}}</p>

            <tt>repeatSelect = {{data.repeatSelect}}</tt><br/>
        </div>
        <p>{{returnCount}}</p>
        <table border = "1">
            <tr>
                <td>{{chartObject.data}}</td>
                <td>{{returnCount}}</td>

            </tr>
        </table>
        <div google-chart chart="chartObject" style="height:600px; width:100%;"></div>
    </div>

The controller responsible for fetching all apps. The above HTML content relies on this to populate the dropdownlist.

angular.module('scotchApp').controller('allappsController',['$scope', function($scope){
    var userurl='';
    $scope.add = function(){

        userurl = 'http://localhost:8085/rest/uafapp/appslist';
        var userdata = {};
        var userconfig =
        {
            headers: {
                'Content-Type':'application/json'
            }
        };
        var userPostRequest = $.get(userurl, userdata, userconfig);
        var userjson = '{\"USER_DATA_RETRIEVED\" : \"fail\"}';
        userPostRequest.done(function(userdata){

            userjson = JSON.stringify(userdata);
            console.log("userjson :: " + userjson);

            var postResponse = jQuery.parseJSON(userjson);
            $scope.returnName = postResponse['apps'];
            var availableOptionsArray = [];

            for(i = 0; i < postResponse['apps'].length; i++){
                var availableOptions = {};
                availableOptions['id'] = postResponse['apps'][i]['appId'];
                availableOptions['name'] = postResponse['apps'][i]['appName'];
                availableOptionsArray[i] = availableOptions; 
            }
            var returnData = {};
            returnData['repeatSelect'] = null;
            returnData['availableOptions'] = availableOptionsArray;

            $scope.data = returnData;
            console.log($scope.returnData);
            $scope.$apply()
        });

    };
}]);

A portion of the chart-defining controller. As it contains a lot of code, only a relevant snippet is included here.

   angular.module('scotchApp').controller('chartsuccessfulapploginsController',['$scope','$route','$http','AuthTokenService', function($scope, $route, $http, AuthTokenService){
        var appurl = '';
        var failedappurl= '';

        $scope.add = function(APPID) {

...}

Answer №1

It seems like the issue lies within your <option> element. The use of ng-click is not compatible with this particular tag. In accordance with the information provided in the AngularJS documentation, it is recommended to utilize ng-change in conjunction with the select tag, as illustrated below:

<select name="repeatSelect" id="repeatSelect" ng-model="data.repeatSelect" ng-change="functionToBeCalledWhenValueChanges(yourBindedElementValue)">

We hope that implementing this adjustment resolves the issue at hand.

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