Angularjs 解决从简单函数返回数据到UI路由器的问题

我已经尝试了所有我能找到的建议将承诺对象返回到解析的方法，以便我的函数将异步处理，但仍然无法获得返回的正确数据-请建议：

        .state("app.deals.private", {
            url: "/private/",
            resolve: {
                dealsFeatured: function(Deals, $rootScope) {
                    return Deals.getDeals('FEATURED', function(data) {
                        // console.log('deals featured', data); // DATA IS HERE
                        $rootScope.loading = false;
                        return data; 
                    });
                },
                dealsGeneral: function(Deals, $rootScope, dealsFeatured) {
                    return Deals.getDeals('GENERAL', function(data) {
                        // console.log('deals general', data);  // DATA IS HERE
                        $rootScope.loading = false;
                        return data; 
                    });
                },
                dealsCats: function(Deals, dealsFeatured, dealsGeneral, $q) {

                    // ALL DEPENDENCIES HAVE DATA HERE 

                    // build a promise object
                    var deferred = $q.defer();

                    Deals.mergeCats(dealsFeatured, dealsGeneral, $q, function(data){
                        console.log("received dealsCats: " + data); 
                        //BUT....NOTHING IS RETURNED HERE, WHY NOT?!?!?!?

                        deferred.resolve(data);
                    });

                    //return the promise object
                    return deferred.promise;

                },

下面是我的服务中的代码（请注意，数据是正确的，并在回调之前输出到控制台：

 api.service('Deals', function(){

    this.mergeCats = function(dealsFeatured, dealsGeneral, $q, callback){

    // make one big array
    var allCats = [];
    if(Array.isArray(dealsFeatured.data.discountTermsWithCounters.cats)){
        allCats = dealsFeatured.data.discountTermsWithCounters.cats;
    }
    if(Array.isArray(dealsGeneral.data.discountTermsWithCounters.cats)){
        allCats = allCats.concat(dealsGeneral.data.discountTermsWithCounters.cats);
    }

    // now recreate the array into something we can work with
    var newCats = [];
    angular.forEach(allCats, function(value, key){
        if(newCats[value.title]){
            newCats[value.title].count += value.count;
        } else {
            newCats[value.title] = value;
        }
    });
    // after all is completed, return data to the promise object
    $q.all(allCats).then(function () {
        console.log('newCats',newCats);  // CORRECT DATA IS OUTPUTTED HERE
            // newCats data looks like this in console:
            // Array: [Herbs & Homeopathic: Object, Frozen: Object, Groceries: Object, Body Care: Object, General Merchandise: Object…]
        callback(newCats);
    });

};
});

---

请告知，我遗漏了什么？

您对

dealsCats

和

Deals.mergeCats

以及如何以及为什么将

$q

作为参数使用和传递感到困惑

mergeCats

执行

$q。返回承诺的所有

，但

mergeCats

仅执行同步操作。无需执行

$q

、承诺或回调：

因此，将

Deals.mergeCats

更改为以下内容：

this.mergeCats = function(dealsFeatured, dealsGeneral){
  // some other code here that creates allCats
  return allCats;
}

出于同样的原因，对于

dealsCats

，您不需要

$q.defer

：

resolve: {
    //...,
    dealsCats: function(Deals, dealsFeatured, dealsGeneral){
       return Deals.mergeCats(dealsFeatured, dealsGeneral);
    }
}

---

我最初尝试过，但没有成功，这就是为什么我认为它需要返回一个承诺对象。我会再试一次，正如你所说，让你知道它是否有效。好的，我已经确认数据确实正在传递到控制器，我遇到的问题是数组的格式-角度ui路由器不会传递a将对象作为模板的值的关联数组，因此我将其转换为对象，现在它可以完美地工作。感谢您帮助我解决实际问题！