AngularJS pub/sub example

angular-pub-sub.js

angular.module('app')

.service('dataSvc', function($q) {
    var dataStore = [];
    // Slight abuse of promises to achieve pub/sub pattern
    var updater = $q.defer();
    function addData(data) {
        // Add the data to the dataStore
        dataStore.push(data);
        // Tell all subscribers about the update, and
        // provide the updated array
        updater.notify(dataStore);
    }
    // Expose the required methods
    return {
        addData: addData
        onUpdate: updater.promise
    }
})

.controller('myCtrl', function($scope, dataSvc) {
    // $scope.data is a ng-model
    // $scope.submit is connected to submit button
    $scope.submit = function() {
        if ($scope.data) {
            dataSvc.push($scope.data);
        }
    }
})

.controller('anotherCtrl', function($scope, dataSvc) {
    // Subscribe to notifications from the dataSvc
    dataSvc.onUpdate().then(null, null, function(dataStore) {
        $scope.data = dataStore;
    });
})