自定义指令发出angularjs
我正在通过一本压力书学习angularjs,其中一个示例工作不正常,我相信问题在于自定义指令,但我不确定如何调试它,因为我的控制台甚至没有给我任何错误 这是我的档案 app.html自定义指令发出angularjs,angularjs,angularjs-directive,Angularjs,Angularjs Directive,我正在通过一本压力书学习angularjs,其中一个示例工作不正常,我相信问题在于自定义指令,但我不确定如何调试它,因为我的控制台甚至没有给我任何错误 这是我的档案 app.html <!DOCTYPE html> <!-- We are defining the sportStore module here in the html tag--> <html> <head> <title>Sports Store
<!DOCTYPE html>
<!-- We are defining the sportStore module here in the html tag-->
<html>
<head>
<title>Sports Store</title>
<link href="bootstrap.min.css" rel="stylesheet" />
<link href="bootstrap-theme.min.css" rel="stylesheet" />
</head>
<!-- Applying ng-controller to the body tagg -->
<body ng-app="sportsStore" ng-controller="sportsStoreCtrl">
<div class="navbar navbar-inverse">
<a class="navbar-brand" href="#">Sports Store</a>
<cartsummary></cartsummary>
</div>
<div class="alert alert-danger" ng-show="data.error">
Error ({{data.error.status}}). The product data was not loaded. <a href="/app.html" class="alert-link">Click here to try again</a>
</div>
<ng-include src="'views/productList.html'"></ng-include>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"></script>
<script src="angular-resource.min.js"></script>
<script src="controllers/sportsStore.js"></script>
<script src="filters/customFilters.js"></script>
<script src="controllers/productListControllers.js"></script>
<script src="components/cart/cart.js"></script>
</body>
</html>
确保:
- 您的标记中有属性
,因为该指令在ng app='sportstore'
模块的范围内cart
- 在模板中,您使用了语法
,因为指令名为
,并且因为指令声明为EElement(参见cartSummary
restrict:'E')
下面是您示例中代码的一小部分:。在app.html中尝试cart summary而不是cartsummary
尽管在定义指令时使用了名称cartSummary,但AngularJS规范化了组件名称以在这些格式之间映射。@MichaelP。我只是试了一下,不,不行:(你在javascript控制台中有错误吗?@MichaelP。控制台中也没有错误。调试angularjs有点烦人@我猜你也试过
?@MichaelP。是的,我试过了,但似乎没有任何效果。我想确保我们都在同一页上,问题来自自定义指令ri是吗?我在我的sportStore.js文件中调用了它,不是吗?我只是查看了您添加的sportStore.js
。似乎模块cart
是模块sportStore
的依赖项。我猜在您的主页中您有ng app='sportStore'
对吗?是的,您是对的。这已经成为一个非常头痛和棘手的问题我将要删除这本教我angularjs的书……如果你更改常量dataUrl
,这将设置$scope.data.error=error
。你看到“产品数据未加载”警报了吗?我想确保至少angular指令正常工作。实际上,如果我更改http:10,它不会正常工作.0.1.51:2403/doesNotExist
它仍在加载
angular.module('cart', []).factory('cart', function() {
var cartData = [];
return {
addProduct: function(id,name,price) {
var addedToExistingItem = false;
for (var i = 0; i < cartData.length; i++) {
if (cartData[i].id == id) {
cartData[i].count++;
addedToExistingItem = true;
break;
}
}
if (!addedToExistingItem) {
cartData.push({
count: 1, id: id, price: price, name: name
});
}
},
removeProduct: function(id) {
for (var i = 0; i < cartData.length; i++) {
if (cartData[i].id == id) {
cartData.splice(i,1);
break;
}
}
},
getProducts: function() {
return cartData;
}
}
}).directive('cartSummary', function(cart){
return {
restrict: "E",
templateUrl: "components/cart/cartSummary.html",
controller: function($scope) {
var cartData = cart.getProducts();
$scope.total = function() {
var total = 0;
for (var i = 0; i < cartData.length; i++) {
total += (cartData[i].price * cartData[i].count);
}
return total;
}
$scope.itemCount = function() {
var total = 0;
for(var i = 0; i < cartData.length; i++) {
total += cartData[i].count;
}
return total;
}
}
}
});
<style>
.navbar-right {float: right !important; margin-right: 5px;}
.navbar-text {margin-right: 10px;}
</style>
<div class="navbar-right">
<div class="navbar-text">
<b>Your cart:</b>
{{itemCount()}} item(s),
{{total() | currency}}
</div>
<a class="btn btn-default navbar-btn">Checkout</a>
</div>
//declaring a dependency called customFilters that contains a unqiue filter
angular.module('sportsStore',['customFilters', 'cart']);
// calling the angular.module method passing in sportsStore located in app.html
angular.module('sportsStore').constant('dataUrl', "http://10.0.1.51:2403/products").controller('sportsStoreCtrl', function($scope,$http,dataUrl) {
$scope.data = {};
$http.get(dataUrl).success(function(data) {
$scope.data.products = data;
}).error(function (error){
$scope.data.error = error;
});
});