使用Angularjs或下划线js合并具有不同值的对象

Question

我试图将两个对象合并到一个多维对象中，以便通过'unique_id‘在Angularjs控制器中使用。(注:我还添加了下划线Js )。

对象1示例：

[ 
  { "unique_id": "001", "title": "Putting Green Challenge - Motion Depends on Force and Mass" }, 
  { "unique_id": "002", "title": "Molecules to Organisms: Frog Life Cycle" }
]

对象#2示例(比对象1有更多的行)：

[
  {

   "ab_id": "76153F02-29F3-11D8-95EA-951BF95D9AEF",
   "unique_id": "001",
   "title": "How Speed Relates to Energy",
   "state": "NY",
   "document_title": "Core Curriculum",
   "grade_code": "K-4",
   "grade_descr": "Elementary",
   "state_id": "1.S2.3a",
   "state_text": "Use appropriate \"inquiry and process skills\" to collect data"

},
{

  "ab_id": "7980A762-29F3-11D8-BD14-861D7EA8D134",
  "unique_id": "001",
  "title": "How Speed Relates to Energy",
  "state": "NY",
  "document_title": "Core Curriculum",
  "grade_code": "5-8",
  "grade_descr": "Intermediate",
  "state_id": "1.S3.2d",
  "state_text": "formulate and defend explanations and conclusions as they relate to scientific phenomena"

}
]

我的财务主任：

abApp.controller("abEE", function(abService, $http, $scope, $q, _) {
  var abApp = this;

  $scope.abData = $http.get('/data/ab_activities.json', {
    cache: false
  });
  $scope.eeData = $http.get('/activities/eedata', {
    cache: false
  });

  $q.all([$scope.eeData, $scope.abData]).then(function(values) {
    var val = ??? This is where I want to merge the objects into one big multidimensional object..
});

这是console.dir(值)的输出；

0  Object { data=[28], status=200, config={...}, more...}
1  Object { data=[743], status=200, config={...}, more...}

这是我想要得到的期望输出：

[
  { "unique_id": "001", "title": "Putting Green Challenge - Motion Depends on Force and Mass", "alignments": [{"ab_id": "76153F02-29F3-11D8-95EA-951BF95D9AEF","unique_id": "001","title": "How Speed Relates to Energy",...}, {"ab_id": "7980A762-29F3-11D8-BD14-861D7EA8D134", "unique_id": "001", "title": "How Speed Relates to Energy",...}]
]

Answer 1

如果您可以切换到使用房客而不是下划线，则可以这样实现：

var val = _.values(_.merge(_.indexBy(values[0].data, 'unique_id'), _.indexBy(values[1].data, 'unique_id')));

下划线没有_.merge()，您必须在没有它的情况下遍历每个属性。

Answer 2

我不认为角或下划线有这种功能。我将执行类似于以下伪代码的操作：

tempObject = {}
for object in objectArray
  if tempObject[object.unique_id] isnt undefined
    tempObject[object.unique_id] = object
  else angular.extend(tempObject[object.unique_id], object) // or the other way around depending on your preference
resultingArray = []
for object, key of tempObject
  resultingArray.push(object)

您必须为两个返回的数组运行for object in objectArray，但这应该有效，而且可能比大多数合并算法更高效，因为最多只能遍历每个返回的数组两次。