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2013-10-19T17:50:26.297
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<p>Here is good Demo in <kbd><a href="http://jsfiddle.net/simpulton/GeAAB/">Fiddle</a></kbd> how to use shared service in directive and other controllers through <code>$scope.$on</code></p> <p><strong>HTML</strong></p> <pre><code><div ng-controller="ControllerZero"> <input ng-model="message" > <button ng-click="handleClick(message);">BROADCAST</button> </div> <div ng-controller="ControllerOne"> <input ng-model="message" > </div> <div ng-controller="ControllerTwo"> <input ng-model="message" > </div> <my-component ng-model="message"></my-component> </code></pre> <p><strong>JS</strong></p> <pre><code>var myModule = angular.module('myModule', []); myModule.factory('mySharedService', function($rootScope) { var sharedService = {}; sharedService.message = ''; sharedService.prepForBroadcast = function(msg) { this.message = msg; this.broadcastItem(); }; sharedService.broadcastItem = function() { $rootScope.$broadcast('handleBroadcast'); }; return sharedService; }); </code></pre> <p>By the same way we can use shared service in directive. We can implement controller section into directive and use <code>$scope.$on</code></p> <pre><code>myModule.directive('myComponent', function(mySharedService) { return { restrict: 'E', controller: function($scope, $attrs, mySharedService) { $scope.$on('handleBroadcast', function() { $scope.message = 'Directive: ' + mySharedService.message; }); }, replace: true, template: '<input>' }; }); </code></pre> <p>And here three our controllers where <code>ControllerZero</code> used as trigger to invoke <code>prepForBroadcast</code></p> <pre><code>function ControllerZero($scope, sharedService) { $scope.handleClick = function(msg) { sharedService.prepForBroadcast(msg); }; $scope.$on('handleBroadcast', function() { $scope.message = sharedService.message; }); } function ControllerOne($scope, sharedService) { $scope.$on('handleBroadcast', function() { $scope.message = 'ONE: ' + sharedService.message; }); } function ControllerTwo($scope, sharedService) { $scope.$on('handleBroadcast', function() { $scope.message = 'TWO: ' + sharedService.message; }); } </code></pre> <p>The <code>ControllerOne</code> and <code>ControllerTwo</code> listen <code>message</code> change by using <code>$scope.$on</code> handler.</p>
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1. POCall a method of a controller from another controller using 'scope' in AngularJS
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