AngularJS - 使用ng-repeat的动态指令 [英] AngularJS - Dynamic Directives using ng-repeat

问题描述

我花了一些时间试图找到一个优雅的解决方案，而我有一个有效的解决方案，它不是最简单或最正确的做事方式。

所以，我的问题是......我怎样才能动态加载指令！在某些情况下，下面是我希望我能够逃脱它的方式！我没有包含路由或除模板加载之外的任何内容，我将以下控制器分配给ng-controller。

app.js

  angular.module（'myApp'，[]）
 
 .controller（'someController'，[ '$ scope'，函数（$ scope）{
 $ scope.directives = ['myDirectiveA'，'myDirectiveB']; 
}]）
 
 .directive（'myDirectiveA '，function（）{
返回{
模板：'< p>指令A，令人兴奋。< / p>'
}; 
}）
 
 .directive（'myDirectiveB'，function（）{
 return {
 template：'< p>指令B，同样令人兴奋。< / p>'
} ; 
}）; 
  

template.html

 < div ng-controller =someController> 
< div ng-repeat =指令中的指令> 
 
< x-directive>< / x-directive> //尝试1 
< x  -  {{directive}}>< / x  -  {{directive}}> //尝试2 
< {{'x-'+指令}}>< / {{'x-'+指令}}> //尝试3 
 
< / div> 
< / div> 
  

任何人都可以提出的建议将不胜感激，如果我做任何明显愚蠢的事情，请原谅这是我第一次使用Angular！

解决方案

我希望这可以帮到你：

for explain：当你想在其他指令如ngRepeat或其他自定义指令中使用
时，你必须编译你的指令......

< pre class =snippet-code-js lang-js prettyprint-override> angular.module（'myApp'，[]）。invtroller（'someController'，['$ scope'，function（$范围）{$ scope.directives = ['my-directive-a'，'my-directive-b'];}]）。.directive（'directive'，function（$ compile）{return {restrict：A，范围：{set：= }，link：function（scope，element）{element.html（< div class = \+ scope.set +\>< / div>）; $编译（element.contents（））（范围）; }}; } .directive（'myDirectiveA'，function（）{return {restrict：C，template：'< p> Directive A，exciting。< / p>'};}} .directive（'myDirectiveB'， function（）{return {restrict：C，template：'< p>指令B，同样令人兴奋。< / p>'};}）;

 <！DOCTYPE html>< html ng-app =myApp>< head> < title>< / title>< / head>< body ng-controller =someController> < div ng-repeat =指令中的指令> < div directive set =directive>< / div> < / DIV> < script src =https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.8/angular.min.js>< / script>< / body>< / html> ;  

I've spent a while trying to find an elegant solution to this, whilst I have a solution that 'works' it doesn't feel like the easiest or correct way of doing things.

So, my question is...how can I dynamically load directives! For some context, below is how I was hoping I'd be able to get away with it! I've not included the routing or anything but the template loads and I assign the below controller with ng-controller.

app.js

angular.module('myApp', [])

.controller('someController', ['$scope', function($scope) {
  $scope.directives = ['myDirectiveA', 'myDirectiveB'];
}])

.directive('myDirectiveA', function() {
  return {
    template: '<p>Directive A, exciting.</p>'
  };
})

.directive('myDirectiveB', function() {
  return {
    template: '<p>Directive B, equally as exciting.</p>'
  };
});

template.html

<div ng-controller="someController">
  <div ng-repeat="directive in directives">

    <x-directive></x-directive> // Attempt 1
    <x-{{directive}}></x-{{directive}}> // Attempt 2
    <{{'x-' + directive}}></{{'x-' + directive}}> // Attempt 3

  </div>
</div>

Any advice that anyone can offer would be greatly appreciated, excuse me if I'm doing anything obviously stupid this is my first time round with Angular!

解决方案

i hope this help you:

for explain: you have to $compile your directive when you want to use it in other directive like ngRepeat or other custom directive...

        angular.module('myApp', [])

        .controller('someController', ['$scope', function ($scope) {
            $scope.directives = ['my-directive-a', 'my-directive-b'];
        }])

        .directive('directive', function ($compile) {
            return {
                restrict: "A",
                scope: {
                    set: "="
                },
                link: function (scope, element) {
                    element.html("<div class=\" "+ scope.set +" \"></div>");
                    $compile(element.contents())(scope);
                }
            };
        })

        .directive('myDirectiveA', function () {
            return {
                restrict: "C",
                template: '<p>Directive A, exciting.</p>'
            };
        })

        .directive('myDirectiveB', function () {
            return {
                restrict: "C",
                template: '<p>Directive B, equally as exciting.</p>'
            };
        });

<!DOCTYPE html>
<html ng-app="myApp">
<head>
    <title></title>
</head>
<body ng-controller="someController">
    
    <div ng-repeat="directive in directives">
        <div directive set="directive"></div>
    </div>

    <script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.8/angular.min.js"></script>
</body>
</html>

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