我在AngularJS过滤我的产品列表时遇到问题。我已经对我的变量进行了一些控制台.log查询,一切似乎都很好。问题是视图不会更新以显示筛选的产品。
当您在输入框中输入搜索文本时,过滤工作得很好,但在单击"类别"菜单项时不起作用。
我想在用户单击菜单项时按类别过滤产品列表。
请参阅下面的代码,非常感谢任何帮助或建议。
我的应用.js
myApp.controller('StoreController', function($scope, $filter, storeFactory, cartFactory) {
$scope.cartTotal = 0;
$scope.cartItems = [];
$scope.categories = [];
$scope.counted = 0;
$scope.filteredProducts = {};
//get the products
storeFactory.getProducts(function(results) {
$scope.products = results.products;
$scope.counted = $scope.products.length;
$scope.filteredProducts = results.products;
});
$scope.$watch("search", function(query){
if($scope.filteredProducts.length) {
$scope.filteredProducts = $filter("filter")($scope.products, query);
$scope.counted = $scope.filteredProducts.length;
}
});
$scope.filterProductsByCategory = function(categoryName){
console.log('category filter');
/*$scope.products.forEach(function(o,i){
console.log('filter');
if( o.category_id !== categoryId ){
$scope.filteredProducts.splice(i,1);
console.log('removing');
console.log(o);
}
});*/
$scope.filteredProducts = $filter("filter")($scope.filteredProducts, categoryName);
console.info('the filtered items');
console.log($scope.filteredProducts);
$scope.counted = $scope.filteredProducts.length;
}
$scope.getCategories = function(){
storeFactory.getCategories(function(results){
$scope.categories = results.rows;
});
}
$scope.getCategories();
});
我的商店.htm
更新:我删除了额外的控制器引用并将所有内容包装在一个div 中。
<div ng-controller="StoreController">
<!-- the sidebar product menu -->
<div class="block-content collapse in">
<div class="daily" ng-repeat="category in categories | orderBy:'name'">
<div class="accordion-group">
<div ng-click="filterProductsByCategory(category.category_name)" class="accordion-toggle collapsed">{{category.category_name}}</div>
</div>
</div>
</div>
</div>
<!-- Load store items start -->
<div class="label">Showing {{counted}} Product(s)</div>
<div class="row" ng-repeat="product in filteredProducts | orderBy:'product_name'" style="margin-left: 0px; width: 550px;">
<hr></hr>
<div class="span1" style="width: 120px;">
<!-- <a data-toggle="lightbox" href="#carouselLightBox"> -->
<a data-toggle="lightbox" href="#carouselLightBox{{product.product_id}}">
<!--img alt={{ product.product_name }} ng-src="{{product.image}}" src="{{product.image}}" /-->
<img id="tmp" class="" src="images/products/{{product.product_image_filename}}" alt=""></img>
</a>
<div class="lightbox hide fade" id="carouselLightBox{{product.product_id}}" style="display: none;">
<div class='lightbox-content'>
<img src="images/products/{{product.product_image_filename}}" alt="" />
<!--img alt={{ product.product_name }} ng-src="{{product.image}}" src="{{product.image}}" /-->
<button class="btn btn-primary" id="close_lightbox" ng-click="closeBox(product.product_id, $event)">Close</button>
</div>
<style>
#close_lightbox
{
position: absolute;
top: 5px;
right: 5px;
}
</style>
</div>
</div>
<div class="span6" style="width: 330px; margin-bottom: 15px;">
<h5 style="font-size: 14px; font-weight: bold;">{{product.product_name}}</h5>
<p>{{product.product_description }}</p>
<p>Category : {{product.category_name}}</p>
</div>
<div class="span3">
<p class="price">Price : <strong>R{{ product.product_price }}</strong></p>
</div>
</div>
<!-- end of controller -->
</div>
$scope.filteredProducts = {};
//get the products
storeFactory.getProducts(function (results) {
$scope.products = results.products;
$scope.counted = $scope.products.length;
$scope.filteredProducts = results.products;
});
results.products
是对象的数组还是对象的对象? 因为$filter('filter')($scope.products,query);
期望$scope.products
是一个数组。
$scope.$watch("search", function (query) {
if($scope.filteredProducts.length) {
$scope.filteredProducts = $filter("filter")($scope.products, query);
$scope.counted = $scope.filteredProducts.length;
}
});
这是我认为它应该看起来像的样子,你不需要 $watch
语句或filteredProducts
数组/对象,在控制器中:
$scope.search = '';
$scope.products = [];
$scope.categories = ['category1','category2','category3'];
// assuming that your store function getProducts returns a promise here
storeFactory.getProducts().then(function(results){
$scope.products = results.products; // needs to be an array of product objects
});
$scope.filterProductsByCategory = function(category){
$scope.search = category;
};
然后在您的 HTML 部分中,这不完全是您的方式,我只是在这里以较短的形式向您展示什么是可能的:
<button ng-repeat="cat in categories" ng-click="filterProductsByCategory(cat)">{{cat}}</button>
<div class="row" ng-repeat="product in products | filter:search | orderBy:'product_name'">
<!-- Product Information Here -->
</div>
我创建了一个 JSFiddle 来演示: http://jsfiddle.net/mikeeconroy/QL28C/1/您可以使用任何术语进行自由格式搜索,也可以单击类别的按钮。
侧边栏使用 StoreController 的一个实例,主div 使用 StoreController 的另一个实例。每个实例都有自己的作用域。两者都应该使用相同的控制器实例:将所有内容包装在一个div 中,并为此包装div 使用唯一的 StoreController。