Angular指令,需要另一个使用Attribute定义的控制器

时间:2015-06-14 13:20:14

标签: javascript angularjs angularjs-directive

我正在学习角度,当我学习自定义指令时,我陷入了一种我不知道如何解决的情况。这是我的自定义指南:

/**
 * Created by Lucas on 11/06/2015.
 */
'use strict'

eventsApp

    .directive('greeting',function() {
        return {
            restrict: 'E',
            replace: true,
            template: "<button class='btn' ng-click='sayHello()'>Say Hello</button>",
            controller: function GreetingController($scope) {
                var greetings = ['hello'];
                $scope.sayHello = function() {
                    alert(greetings.join());
                }
                this.addGreeting = function(greeting) {
                    greetings.push(greeting);
                }
            }
        };
    })
    .directive('finnish',function() {
        return {
            restrict: 'A',
            require: 'greeting',
            link: function(scope, element, attrs, controller) {
                controller.addGreeting('hei');
            }
        }
    })
    .directive('hindi',function() {
        return {
            restrict: 'A',
            require: 'greeting',
            link: function(scope, element, attrs, controller) {
                controller.addGreeting('नमस्ते');
            }
        }
    });

但是,如果我通过以下属性更改greeting控制器以接收外部控制器,这些指令运行正常:

.directive('greeting',function() {
        return {
            restrict: 'E',
            replace: true,
            template: "<button class='btn' ng-click='sayHello()'>Say Hello</button>",
            controller: '@',
            name: 'ctrl'
        };
    })

并在HTML中引用如下:

<!DOCTYPE html>
<html ng-app="eventsApp">
<head lang="en">
<meta charset="UTF-8">
<title>Event Registration</title>
<link rel="stylesheet" href="css/bootstrap.min.css"/>
<link rel="stylesheet" href="css/app.css"/>
</head>
<body>
<greeting ctrl="GreetingController">
    <div finnish hindi></div>
</greeting>

<script src="lib/jquery.min.js"></script>
<script src="lib/angular/angular.js"></script>
<script src="lib/angular/angular-resource.js"></script>
<script src="lib/angular/angular-route.min.js"></script>
<script src="lib/underscore-1.4.4.min.js"></script>
<script src="js/app.js"></script>
<script src="js/controllers/GreetingController.js"></script>
<script src="js/directives/greeting.js"></script>
<script src="js/filters.js"></script>
<script src="lib/bootstrap.min.js"></script>
</body>
   </html>

其他指令停止工作,angular记录以下错误:

错误:[$ compile:ctreq]无法找到指令'hindi'所需的控制器'问候'!

我想有办法解决这个问题,但是因为我是Angular的新手,所以我有点失落。

1 个答案:

答案 0 :(得分:2)

如果您将控制器作为属性获取,则属性名称必须是指令的名称:

<greeting greeting="GreetingController" finnish="" hindi=""></greeting>

请参阅this plunker