从变量值动态设置ng-controller [英] Setting ng-controller dynamically from a variable value

问题描述

我正在使用angularJs和nodejs开发应用程序.将控制器的名称设置为来自主控制器的变量的值感到震惊.为了更好地解释它，我的index.html看起来像这样:

I am developing an application using angularJs and nodejs. Am struck at setting the name of the controller to the value of a variable from main controller. To explain it better, my index.html looks like this :

        <tbody ng-repeat="group in groups">

        <tr ng-repeat="member in group.members" >
            <td rowspan="{{group.members.length}}" ng-hide="$index>=0">
            </td>

            <td>{{member.taskName}}</td>
            <td><div class={{group.colorMe[0]}}>{{member.env}}</div>
                <button class="btn btn-info" ng-controller="member.taskName" ng-click="test( member.taskName , 'env', group.colorMe[0])">Sanity</button>
            </td>

我的主控制器如下所示:

And my main Controller looks like this where the groups are defined as this :

  var tasks =['task1','task2','task3','task4','task5'];

      for(i=0;i<tasks.length;i++)

    {

    var group = {
                  "id" : i+1,
                  "members" : [{
                      "taskName":tasks[i].toUpperCase(),
                      "env1":versionMap["env1"+tasks[i]],
                      "env2":versionMap["env2"+tasks[i]],
                      "env3":versionMap["env3"+tasks[i]]

                  }]
                };
              $scope.groups.push(group);
              }

现在，当我单击按钮时，应将我定向到特定的控制器，并且该控制器名称需要动态设置为member.taskName.有人可以帮我吗?

Now when i click the button , I should be direcrted to a particular controller and this controller name needs to be set dynamically to member.taskName . Can someone please help me with this?

推荐答案

您需要在服务中添加一些额外的逻辑.因此，它将需要新的依赖项，例如:$controller，$compile，$root$scope或$scope.和可选的一个$templateCache.模板也是可选的.

You need to add some extra logic to your service. So it will require new dependencies such as: $controller, $compile, $root$scope or $scope. And optional one $templateCache. Templates are optional as well.

演示 JSFiddle

动态控制器服务:

var controllerTemplate = $templateCache.get(params.templateUrl); // getting inline template string

var templateScope = $rootScope.$new(true); // creating new scope for future controlelr
var templateCtrl = $controller(dynamicControllerName, { // creating controller
     $scope: templateScope // locals stuff that inject in controller           
});

var dynamicControllerElement = angular.element(controllerTemplate); // wrapping template into element

dynamicControllerElement.children().data('$ngControllerController', templateCtrl); // inject controller into element

var compiled = $compile(dynamicControllerElement)(templateScope); // compile all together

$('.container').html(compiled); // putting compiled into DOM (jQuery example) 

更适合您的代码:

指令

 app.directive('dynamicControllerButton', function(dynamicControllerService){
    return {
      restrict: 'E',
      scope: {
         controllerName: '='
      },
      template: '<button class="btn btn-info">Sanity</button>', //added this comma
      link: function(scope, elem, attrs) {

           dynamicControllerService.createController(scope.controllerName, elem); // we passing also element;

    }

  }

})

服务

app.service('dynamicControllerService', function($rootScope, $controller, $compile){

     this.createController = function(dynamicControllerName, element) {

    // all that stuff in example above

      element.html(compiled); // adding compiled controller in element example ;

     }

})

HTML

    <tr ng-repeat="member in group.members" >
        <td rowspan="{{group.members.length}}" ng-hide="$index>=0">
        </td>

        <td>{{member.serviceName}}</td>
        <td><div class={{group.colorMe[0]}}>{{member.env}}</div>
            <dynamic-controller-button>  data-controller-name="dynamic_set_controller" ng-click="test( member.serviceName , 'env', group.colorMe[0])"></dynamic-controller-button>
        </td>

我希望它将对您有帮助

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