AngularJS：如何将我从工厂返回值，如果数据获取与HTTP(AngularJS : How w

我有这个厂的角度：

'use strict';

angular.module('finansiiApp')
  .factory('transactions', function ($http) {
    var transactions = [];
    $http.get("/api/transactions.json")
      .success(function(data, status){
        transactions = data;
      });

    // Public API here
    return {
      getTransactions: function () {
        return transactions;
      },
      addTransaction: function(transaction){
        transactions.push(transaction);
      }
    };
  });

这是我的控制器：

'use strict';

angular.module('finansiiApp')
  .controller('MainCtrl', function ($scope, transactions) {
    $scope.searchText = "";
    $scope.filterPrimanja = $scope.filterTrosoci = true;
    console.log(transactions);
    $scope.transactions = transactions.getTransactions();
    $scope.clicked = function(index){
      console.log(index);
    }
  });

现在，你可能已经猜到了，我在控制器的数据（这里我称之为getTransactions方法）没有更新成功。我如何去使这项工作？

还有你可以改变一些东西。（和方式，你可以改变它们）。 1是最推荐/正确。

使用的承诺，回调在控制器等等...

 // your controller... ($scope.transactions line) transactions.getTransactions().then(function(data){ $scope.transactions = data; } // your service.. angular...factory('transactions',function($http,$q){ var transactions = []; return { getTransactions: function(){ //is a request needed? if(transactions.length > 0){ var deferred = $q.defer(); deferred.resolve(transactions); return deferred.promise; } return $http.get("/api/transactions.json").then(function(result){ //modify collection of transactions... transactions = result.data; return transactions; // this is data ^^ in the controller }); } addTransaction: function(transaction){ //do more http stuff? //wrap function in promise so its consistent and will also run digest. var deferred = $q.defer(); transactions.push(transaction); deferred.resolve(transactions); return deferred.promise; } } });