将发布复合与 Angular-Meteor 结合使用

Question

我有两个集合 Articles 和 Categories 假设他们的文档是这样的

文章

{
   "_id": "blabla",
   "title" : "title",
   "description" : "description",
   "categoryId" : "catId"
}

类别

{
   "_id": "catId",
   "title" : "category",
   "description" : "description"
}

我想订阅让他们变成这样

{
   "_id": "blabla",
   "title" : "title",
   "description" : "description",
   "category" : {
       "title" : "category",
       "description" : "description"
   }
}

我尝试使用 publish-composite，这是我的代码。 服务器

Meteor.publishComposite('articles', {
    find: function() {
        return Articles.find({}, { sort: {}, limit: 10 });
    },
    children: [
        {
            find: function(article) {
                return Categories.findOne({ _id: article.categoryId });
            }
        }
    ]
});

而客户端angularjs控制器是

angular.module("dee").controller("ArticlesListCtrl", ['$scope', '$meteor', function($scope, $meteor){
    $scope.articles = $meteor.collection(Articles).subscribe('articles');
}]);

并且视图是

{{ articles | json }}

问题是它只打印文章集，没有关系。

Answer 1

控制器：

   angular.module("dee").controller("ArticlesListCtrl", ['$scope', '$meteor', function($scope, $meteor){
        $scope.articles = $scope.$meteorCollection(Articles).subscribe('articles');
        $scope.getCategory = function(article) {
            return $scope.$meteorObject(Categories, article._id);
        };
    }]);

HTML:

<div ng-repeat="article in articles" ng-init="category=getCategory(article)"></div>

我也知道更好的方法，但它不适用于 angular 并且看起来没有人关心它 https://github.com/Urigo/angular-meteor/issues/720

Answer 2

添加@Deadly 发布的内容：

Publish composite 可以方便地在单个订阅中获取相关文档。这些文档的处理方式与您进行 2 次单独订阅时的处理方式相同。

在您的情况下，您将有两个 collections 客户端。一个 collection 用于文章，一个 collection 用于类别。您本地 collection 中的哪些文章和哪些类别基于您进行的订阅。

// get a subscription to 'articles'. Use $scope.$meteorCollection so
// the subscription is destroyed when the $scope is destroyed. If you don't you will end up carrying these collections on to anther page.
$scope.$meteorSubscribe('articles').then(function() {
    // This swill get you the articles from the local collection
    $scope.articles = $scope.$meteorCollection(Articles);

    // then you need to get the related Categories for the articles
    $scope.getCategories = function(article) {
        return $scope.$meteorObject(Categoris, article._id);
    }
});

将发布复合与 Angular-Meteor 结合使用

Using publish-composite with Angular-Meteor

angularjs

meteor

angular-meteor