如何将过滤器传递给角度指令以用于ng-repeat?

时间:2014-08-15 13:01:35

标签: javascript angularjs

我试图设置一个指令,这样我就可以传入要在指令中使用的数据,以及将在其中使用ng-repeat的特定过滤器。这不起作用,所以我认为我对整个问题的处理是错误的。

如何传入过滤器?或者,我如何预先过滤/排序我传入的列表?

(范围必须隔离,因为我希望在同一页面上有多个列表。)

<!DOCTYPE HTML>
<html ng-app="MyApp">
<head>
    <meta charset="UTF-8">
    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.22/angular.min.js"></script>
    <script>
var myApp = angular.module('MyApp', []);
myApp.controller('mainPage',function($scope){
    $scope.cars = ["Saab","Volvo","BMW"];
    });
myApp.directive('carList',function(){
    return {
        scope: {
        listOfCars: '=',
        carFilter : '@'
        },
        restrict: 'E',
        replace: 'true',
        template: '<table>\
    <tr ng-repeat="{{carFilter}}">\
    <td>{{car}}</td>\
    </tr>\
    </table>'
    };
});
    </script>
</head>
<body ng-controller="mainPage">
<car-list list-of-cars="cars" car-filter='car in listOfCars | orderBy:"toString()"' ></car-list>
</body>
</html>

带有上述代码的Plunker: http://plnkr.co/edit/ipsF15?p=preview

1 个答案:

答案 0 :(得分:0)

好的,所以我认为这是一个可行的解决方案 - 而不是传入过滤器,传递过滤后的列表,如下所示:

<!DOCTYPE HTML>
<html ng-app="MyApp">
<head>
    <meta charset="UTF-8">
    <script type="text/javascript" src="angular.min.js"></script>
    <script>
var myApp = angular.module('MyApp', []);
myApp.controller('mainPage',function($scope){
    $scope.cars = ["Saab","Volvo","BMW"];
    });
myApp.directive('carList',function(){
    return {
        scope: {
        listOfCars: '&',
        },
        restrict: 'E',
        replace: 'true',
        template: '<table>\
    <tr ng-repeat="car in listOfCars()">\
    <td>{{car}}</td>\
    </tr>\
    </table>'
    };
});
    </script>
</head>
<body ng-controller="mainPage">
<car-list list-of-cars="cars | orderBy:'toString()' | limitTo:2 " ></car-list>
</body>
</html>

哪种感觉不太直观。这是正确的做法吗?