약속이 해결되기 전에 지시문이 렌더링됩니다.

약속이 해결되기 전에 지시문이 렌더링됩니다.

---

약속이 해결 된 후에 만 ​​콘텐츠를 렌더링하라는 지시를받는 데 문제가 있습니다. 이렇게 then()해야한다고 생각 했는데 안되는 것 같네요 ..

내 컨트롤러는 다음과 같습니다.

// Generated by CoffeeScript 1.6.3
(function() {
  var sprangularControllers;

  sprangularControllers = angular.module('sprangularControllers', ['sprangularServices', 'ngRoute']);

  sprangularControllers.controller('productsController', [
    '$scope', '$route', '$routeParams', 'Product', 'Taxonomy', function($scope, $route, $routeParams, Product, Taxonomy) {
      Taxonomy.taxonomies_with_meta().$promise.then(function(response) {
        return $scope.taxonomies = response.taxonomies;
      });
      return Product.find($routeParams.id).$promise.then(function(response) {
        return $scope.currentProduct = response;
      });
    }
  ]);

}).call(this);

내 지시 :

// Generated by CoffeeScript 1.6.3
(function() {
  var sprangularDirectives;

  sprangularDirectives = angular.module('sprangularDirectives', []);

  sprangularDirectives.directive('productDirective', function() {
    return {
      scope: {
        product: '='
      },
      templateUrl: 'partials/product/_product.html',
      link: function(scope, el, attrs) {
        console.log(scope);
        console.log(scope.product);
        return el.text(scope.product.name);
      }
    };
  });

}).call(this);

범위는 괜찮아지고, 개발 도구에서 확인할 때 scope.product정의되지 않은 것은 아니지만 확인 할 때 약속이 해결 되었기 때문이라고 생각합니다.

console.log(scope.product) 그러나 undefined를 반환합니다 ..

---

값이 비동기 적으로 채워 지므로 바인딩 된 요소를 업데이트하는 감시 함수를 추가해야합니다.

  link: function(scope, el, attrs) {
    scope.$watch('product', function(newVal) {
        if(newVal) { el.text(scope.product.name);}
    }, true);
  }

또한 많은 복잡성을 지시어 컨트롤러로 옮기고 링크 기능을 사용하여 DOM 만 조작 할 수 있습니다.

The true third parameter to $watch causes a deep watch, since you're binding this directive to a model.

Here are a couple of links with good examples:
http://www.ng-newsletter.com/posts/directives.html
http://seanhess.github.io/2013/10/14/angularjs-directive-design.html

---

As stated in an official thread about this issue (quickly closed as "won't fix because it would make directives wait"), a workaround is to wrap your directive in a ng-if :

<div ng-if="myPromiseParam">
  <my-directive param="myPromiseParam">
</div>

---

I know this is an older question, but thought I would try my hand at providing an updated answer.

When using a router, both ui-router and ngRouter have resolve methods that will resolve promises on url changes before switching to that route and rendering things on the page.

ngRouter Resolve tutorial
ui-router Resolve docs

Another option, instead of using $watch is to use angulars $q promise library. More specifically, the $q.when() method. This takes promises and values. IF it's a promise it will fire a .then() when the promise resolves. If its a value, it wraps it in a promise and immediately resolves it.

link: function(scope, el, attrs){
    $q.when(scope.product).then(function(product){
        scope.product = product;
        el.text(scope.product.name);
    });
}

Or there a couple way you can not show anything just with html.

<product-directive product='object'>
    <!-- Will hide span until product.name exists -->
    <span ng-show='product.name'>{{ product.name }}</span> 

    <!-- Will show default text until key exists -->
    {{ product.name || 'Nothing to see here' }}

    <!-- Will show nothing until key exists -->
    <span ng-bind='product.name'></span>
</product-directive>    

---

use $watch on your variable in your directive to get the updated value of your variable.

you can also make use of $q to resolve the promise.

참고URL : https://stackoverflow.com/questions/21177582/directive-is-being-rendered-before-promise-is-resolved