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POAngular : Pass JSON $http promise to factory
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  1. POAngular : Pass JSON $http promise to factory
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    copied!<p>At the moment, my Angular app looks like this:</p> <h3>Factory in <code>app.js</code></h3> <pre><code>StoreApp.factory("DataService", function () { // create store var myStore = new store(); // create shopping cart var myCart = new shoppingCart("Store"); // return data object with store and cart return { store: myStore, cart: myCart }; }); </code></pre> <h3><code>controller.js</code></h3> <pre><code> function storeController($scope, $http, $routeParams, $location, DataService) { $scope.store = DataService.store; $scope.cart = DataService.cart; // use routing to pick the selected product if ($routeParams.productUrlTitle != null) { $scope.product = $scope.store.getProduct($routeParams.productUrlTitle) || $scope.store.getHero($routeParams.productUrlTitle); } $scope.predicate = '-price'; $scope.store.isCart = $location.path() == "/cart"; } </code></pre> <p>In <code>store.js</code> (below) is where my issue is — currently <code>this.products[]</code> takes inline assignments. I need this to instead load an external JSON file (also below). I've tried several things from including/passing the <code>promise</code> to <code>var myStore = new store();</code>, to actually including <code>$http.get()</code> paired with <code>.then()</code> inside of <code>store.js</code> — to no avail. </p> <h3><code>store.js</code></h3> <pre><code>function store() { this.products = [ new product("USD", 20, "https://foo.jpg", "Name", "Description"), new product("USD", 20, "https://bar.jpg", "Name", "Description"), ]; } store.prototype.getProduct = function (urlTitle) { for (var i = 0; i &lt; this.products.length; i++) { if (this.products[i].urlTitle == urlTitle) return this.products[i]; } return null; } </code></pre> <h3><code>payload.json</code></h3> <pre><code>[ { "currency": "usd", "cost": 1000, "image_url": "https://whatever.domain/someimage.jpg", "id": "xyz", "name": "A title", "description": "Some details" }, ... ] </code></pre> <p>For those interested, my project is based on this: <a href="http://www.codeproject.com/Articles/576246/A-Shopping-Cart-Application-Built-with-AngularJS" rel="nofollow">A Shopping Cart Application Built with AngularJS</a>. </p> <p>Many thanks in advance. </p> <hr> <h2>Update</h2> <p>I was able to accomplish what I wanted, but I'm not certain it's the best (Read: correct) way to. In short, I added a new factory called "InventoryService" that I pass to my controller. </p> <h3><code>app.js</code></h3> <pre><code>// New Factory Added StoreApp.factory('InventoryService', ['$http', '$rootScope', function ($http, $rootScope) { var inventory = []; return { getInventory: function () { return $http.get('http://localhost/ShoppingCart/payload.json').then(function (response) { inventory = response; $rootScope.$broadcast('handleInventoryService', inventory); return inventory; }) } }; } ]); </code></pre> <h3><code>controller.js</code></h3> <pre><code>function storeController($scope, $http, $routeParams, $location, InventoryService, DataService) { $scope.name = 'inventory'; (function () { InventoryService.getInventory().then(function (inventory) { $scope.inventory = inventory; for (var i = 0; i &lt; $scope.inventory.data.length; i++) { if ($scope.inventory.data[i].id == '11ca3ea26f0e431eb996a401f292581f2') { DataService.store.hero.push( new product( $scope.inventory.data[i].id, $scope.inventory.data[i].image_url, $scope.inventory.data[i].name, $scope.inventory.data[i].description, $scope.inventory.data[i].cost ) ); } else { DataService.store.products.push( new product( $scope.inventory.data[i].id, $scope.inventory.data[i].image_url, $scope.inventory.data[i].name, $scope.inventory.data[i].description, $scope.inventory.data[i].cost ) ); } } // get store and cart from service $scope.store = DataService.store; $scope.cart = DataService.cart; ... </code></pre> <h3><code>store.html</code> partial</h3> <pre><code>&lt;div ng-include src="'partials/header.html'"&gt;&lt;/div&gt; &lt;div ng-repeat="product in store.hero" class="row-fluid"&gt; &lt;div class="span12"&gt; &lt;div class="span4"&gt; &lt;a href="#/products/{{product.urlTitle}}"&gt; &lt;img class="img-polaroid" ng-src="{{product.image_url}}" title="{{product.name}}" /&gt; &lt;/a&gt; &lt;/div&gt; &lt;div class="span8"&gt; &lt;h1 class="tango-tang weight-100"&gt; {{product.name}} &lt;/h1&gt; &lt;hr /&gt; &lt;div class="row-fluid"&gt; &lt;div class="span7"&gt; &lt;p&gt; {{product.description}} &lt;/p&gt; &lt;/div&gt; &lt;div class="span5"&gt; &lt;div class="well"&gt; &lt;h1 class="weight-300 text-center"&gt; {{product.price | currency}} &lt;/h1&gt; &lt;/div&gt; &lt;button class="btn btn-success btn-medium btn-block" ng-click="cart.addItem(product.sku, product.image_url, product.name, product.price, 1)"&gt; &lt;i class="icon-plus"&gt;&lt;/i&gt; Add to Cart &lt;/button&gt; &lt;a href="#/products/{{product.urlTitle}}" class="btn btn-block"&gt; &lt;i class="icon-list"&gt;&lt;/i&gt; Details &lt;/a&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; </code></pre>
 

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