TomSelleck
TomSelleck

Reputation: 6968

Trouble modifying ngResource result

I had the following in my code:

function store() {

    this.products = [
        new product("sku001", "Apple", "Tasty stuff", 1.00, "local"),
        ...
    ];

This worked fine for displaying all the products:

<h3>Products</h3>
<b>Display products: {{store.products}}</b>
<div class="row"> 
    <div ng-repeat="product in store.products">
    <img ng-src="@Url.Content("~/Content/images/products/{{product.sku}}.png")" alt="{{product.name}}"><p></p>
    <p>{{product.description}}</p>
</div>

Products displayed:

display_products

Now instead of hardcoding the values, I want to load them from a restful api:

function store($resource) {

    var Resource = $resource('/api/products/');

    this.products = Resource.query();

    console.log(this.products)

This also appears to work okay, but the formatting of the values is slightly different (Upper-case / differing key names):

 [{"SKU":"sku001","Name":"Apple","ProductType":"local","Description":"Tasty stuff","Allowance":1073741824,"Price":1}]

I wanted to use the data I received from the API to create an array of objects which matches my current formatting but I am having some issues:

function store($resource) {
    var Resource = $resource('/api/products/');

    this.products = Resource.query(function (data) {

        var product = {};
        var productsList = []
        for (i = 0; i < data.length; i++) {

            product = {
                sku: data[i].SKU,
                name: data[i].Name,
                description: data[i].Description,
                price: data[i].Price,
                category: data[i].ProductType
            }
            productsList.push(product);
        }
        return productsList;

    });

When I run the code, this gets outputted:

updated image

As you can see, the json displayed has not been modified and as a result, the description / price are not displayed.

Does anybody know how I can modify data loaded using $resource and then display it?

Edit

controller.js

function storeController($scope, $routeParams, DataService) {
    // get store and cart from service
    $scope.store = DataService.store;
    $scope.cart = DataService.cart;
}

app.js

var storeApp = angular.module('AngularStore', ['ngRoute', 'ngResource']).
//route stuff
}]);

storeApp.factory("DataService", function ($resource) {

    var myStore = new store($resource);
    var myCart = new shoppingCart("AngularStore");

    // return data object with store and cart
    return {
        store: myStore,
        cart: myCart
    };
});

Upvotes: 0

Views: 113

Answers (2)

Douglas Henrique
Douglas Henrique

Reputation: 329

function store($resource) {
    var Resource = $resource('/api/products/');

    Resource.query(function (data) {

        var product = {};
        var productsList = []
        for (i = 0; i < data.length; i++) {

            product = {
                sku: data[i].SKU,
                name: data[i].Name,
                description: data[i].Description,
                price: data[i].Price,
                category: data[i].ProductType
            }
            productsList.push(product);
        }
        $scope.products =  productsList;

    });
}

When you use this.products = Resource.query(function (data) {...}, this.products receives the return value of Resource.query(), not the return value of the callback function.

Edit

Use $scope, not this.

Upvotes: 1

Pankaj Parkar
Pankaj Parkar

Reputation: 136144

As of Angular 1.2, resources support promises. But they didn't change the rest of the behavior.

To leverage promises with $resource, you need to use the $promise property on the returned value.

function store($resource) {
    var Resource = $resource('/api/products/');

    Resource.query().$promise.then(
    //success callback
    function (data) {

        var product = {};
        var productsList = []
        for (i = 0; i < data.length; i++) {

            product = {
                sku: data[i].SKU,
                name: data[i].Name,
                description: data[i].Description,
                price: data[i].Price,
                category: data[i].ProductType
            }
            productsList.push(product);
        }
        this.products = productsList;

    },
    //error call back
    function(){
    });
}

Thanks

Upvotes: 1

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