使用“需要"在指令中要求父控制器 [英] Using "require" in Directive to require a parent Controller

问题描述

我尝试要求"一个父控制器(不是指令)，但 AngularJS 返回一个异常.代码是这样的:

JS

app.controller("myController", function ($scole) {...});app.directive("myDirective", function ($q) {返回 {要求:^ myController"，模板: ""，链接:函数(范围、元素、属性、myCtrl){...}};});

HTML

...<div 我的指令>...</div>...

错误

<块引用>

错误:[$compile:ctreq] 控制器myController"，需要指令myDirective"，找不到！

为什么?
也许，require 属性必须引用指令的控制器?

谢谢

解决方案

Require是在另一个指令中使用其他指令控制器，请参考下面的例子

var App = angular.module('myApp',[]);//一个指令App.directive('oneDirective',function(){返回 {限制:'E'，控制器:功能($范围){$scope.myName= function(){console.log('我的名字');}}}});//两条指令App.directive('twoDirective',function(){返回 {require:'oneDirective'//使用了一个指令，链接:函数(范围，元素，属性，oneCtrl){console.log(oneCtrl.myName())}}})

I try to "require" a parent controller (not directive) but AngularJS returns an exception. The code is like this:

JS

app.controller("myController", function ($scole) {
    ...
});

app.directive("myDirective", function ($q) {
    return {
        require: "^myController",
        template: "",
        link: function (scope, element, attrs, myCtrl) {
            ...
        }
    };
});

HTML

<div ng-controller="myController as myCtrl">
    ...
        <div my-directive>...</div>
    ...
</div>

Error

Error: [$compile:ctreq] Controller 'myController', required by directive 'myDirective', can't be found!

Why?
Maybe, require property must be reference to a controller of directive?

Thanks

解决方案

Require is of using other directives controllers in another directive , please refer the below example

var App =  angular.module('myApp',[]);

//one directive

App.directive('oneDirective',function(){

  return {
      restrict: 'E',
      controller:function($scope){

       $scope.myName= function(){
            console.log('myname');
          }

         }
    }

});

   //two directive

  App.directive('twoDirective',function(){

  return {
      require:'oneDirective' //one directive used,
      link : function(scope,ele,attrs,oneCtrl){
         console.log(oneCtrl.myName())
     }

   }

  })

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