在 Angular JS 中的控制器之间传递数据? [英] Passing data between controllers in Angular JS?
问题描述
我有一个基本的控制器来显示我的产品,
I have a basic controller that displays my products,
App.controller('ProductCtrl',function($scope,$productFactory){
$productFactory.get().success(function(data){
$scope.products = data;
});
});
在我看来,我正在列表中显示此产品
In my view I'm displaying this products in a list
<ul>
<li ng-repeat="product as products">
{{product.name}}
</li>
</ul
我想要做的是当有人点击产品名称时,我有另一个名为购物车的视图,其中添加了该产品.
What I'm trying to do is when someone click on the product name, i have another view named cart where this product is added.
<ul class="cart">
<li>
//click one added here
</li>
<li>
//click two added here
</li>
</ul>
所以我的疑问是,如何将点击的产品从第一个控制器传递给第二个控制器?我认为购物车也应该是一个控制器.
So my doubt here is, how do pass this clicked products from first controller to second? i assumed that cart should be a controller too.
我使用指令处理点击事件.另外我觉得我应该使用服务来实现上述功能只是不知道如何?因为购物车将预定义添加的产品数量可能是 5/10,具体取决于用户所在的页面.所以我想保持这种通用性.
I handle click event using directive. Also i feel i should be using service to achieve above functionality just can't figure how? because cart will be predefined number of products added could be 5/10 depending on which page user is. So i would like to keep this generic.
更新:
我创建了一个广播服务,并在第二个控制器中接收它.现在查询是如何更新dom?因为我要删除的产品列表是硬编码的.
I created a service to broadcast and in the second controller i receive it. Now the query is how do i update dom? Since my list to drop product is pretty hardcoded.
推荐答案
从描述来看,您似乎应该使用一项服务.查看 http://egghead.io/lessons/angularjs-sharing-data-between-controllers 和 AngularJS 服务在控制器之间传递数据 看一些示例.
From the description, seems as though you should be using a service. Check out http://egghead.io/lessons/angularjs-sharing-data-between-controllers and AngularJS Service Passing Data Between Controllers to see some examples.
您可以这样定义您的产品服务(作为工厂):
You could define your product service (as a factory) as such:
app.factory('productService', function() {
var productList = [];
var addProduct = function(newObj) {
productList.push(newObj);
};
var getProducts = function(){
return productList;
};
return {
addProduct: addProduct,
getProducts: getProducts
};
});
依赖项将服务注入到两个控制器中.
Dependency inject the service into both controllers.
在您的 ProductController
中,定义一些将所选对象添加到数组的操作:
In your ProductController
, define some action that adds the selected object to the array:
app.controller('ProductController', function($scope, productService) {
$scope.callToAddToProductList = function(currObj){
productService.addProduct(currObj);
};
});
在您的 CartController
中,从服务中获取产品:
In your CartController
, get the products from the service:
app.controller('CartController', function($scope, productService) {
$scope.products = productService.getProducts();
});
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