从分离范围指令获取控制器模型 [英] Getting controller model from isolate scope directive
问题描述
我知道有一个十亿关于这里分离范围的问题，但我无法找到一个直接关系到这个确切的问题。
I know that there are a billion questions about isolate scope on here, but I could not find one that directly relates to this exact issue.
我有我叫模式，所以.. $ scope.Model 控制器上的财产。然后，我有一个需要与模型进行交互指令。
I have a property on my controller called Model, so .. $scope.Model. I then have a directive that needs to interact with the Model.
我想给该指令的适用范围分离，但这被证明是有点困难，因为这样做就意味着我不再能够访问模式。我以为我可以通过指定模型作为双向的分离范围绑定，这样的解决这个问题。
I am wanting to give the directive an isolate scope, but this is proving a bit difficult because doing that means I no longer have access to the model. I thought I could solve this by specifying the model as a two-way binding in the isolate scope, like this.
<body ng-app="app" ng-controller="HomeController">
<div custom-directive="Model.Tags"></div>
</body>
的JavaScript
app.directive('customDirective', ['$parse', function($parse) {
return {
restrict: "A",
scope: {
customDirective: "=Model"
},
link: function(scope, element, attributes){
// need to access the controller's "$scope.Model" here for some things.
var model = scope.$eval(attributes.customDirective);
}
}
}])
.controller('HomeController', ['$scope', function($scope) {
$scope.Model = {
Id: "items/1",
Name: "Some Model Object",
Tags: []
};
}]);
我真的失去了，为什么这是行不通的。根据所有的分离范围教程，我见过的，这应该是罚款。
I'm really lost as to why this doesn't work. According to all of the isolate scope tutorials I've seen, this should be fine.
传递控制器作为参数不是一个选项。第三方库，我需要与已经这样做了互动，显然我不能这样做，两次相同的HTML元素。
Passing the controller as a parameter is not an option. A third party library that I need to interact with already does this, and apparently I can't do that twice on the same HTML element.
推荐答案
您使用不正确。这将工作：
Your usage is incorrect. This will work:
<body ng-app="app" ng-controller="HomeController">
<div custom-directive="Model"></div>
</body>
app.directive('customDirective', [function() {
return {
restrict: "A",
scope: {
customDirective: "="
},
link: function(scope, element, attributes){
console.log(scope.customDirective); // this is the $scope.Model due to 2-way binding
}
}
}])
.controller('HomeController', ['$scope', function($scope) {
$scope.Model = {
Id: "items/1",
Name: "Some Model Object",
Tags: []
};
}]);
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