$q.all(promises)和promises对象的结构来收集返回的数据

Question

我正在使用 Angularjs $q.all(promises) 进行多次 REST 调用，然后在承诺成功后收集数据。我有以下关注。

如果“promises 是简单的数组那么它就可以工作Plunker

var promises = [
   Users.query().$promise,
   Repositories.query().$promise
];

如果 "promises" 是简单的对象那么它也可以工作 Plunker

var promises = {
   users: Users.query().$promise,
   repos: Repositories.query().$promise
};

如果 "promises" 是嵌套对象，则它不起作用。根据我的要求，我需要嵌套对象来记住输入参数。 Plunker
```
var promises = {
   users: {"phx":Users.query().$promise},
   repos: {"phx":Repositories.query().$promise}
};
```

这些plunkr只是为了模拟我的问题。但是我希望在实际项目中使用这种方法来满足以下要求。

I have list of 12 product

Each product has "details", "benefits" and "offers" data

I have separate REST API services for "details", "benefits" and "offers" having :productID as parameter
I am making call in following order

a. Loop for each cards

b. For each card, make a REST API call for "details", "benefits" and "offers"

c. Add #b steps into "promises" object

d. call
$q.all(promises).then(function(results) {
    // Here need logic to compile the result back to product 
    // and corresponding  "details", "benefits" and "offers" mapping
  } 
and get the data back

以下是 json 结构，我需要收集我的回复。

{
    "prod1": {
      "benefits": {},
      "offers": {},
      "pages": {
        "productPage": {}
      }
    }
  },
  "common": {
    "benefits": {},
    "pages": {
      "commonBenefit": {}
    },
    "others": {}
  }

我怎样才能做到这一点？

Answer 1

如果实在需要的话，可以这样用$q.all包窝：

var promises = {
  users: $q.all({"phx": Users.query().$promise}),
  repos: $q.all({"phx": Repositories.query().$promise})
};

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$q.all(promises)和promises对象的结构来收集返回的数据

$q.all(promises)and structure of promises object to collect the returned data

angularjs

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