根据属性

Question

我正在尝试根据属性合并数组中的对象，并将值添加到公共字段中。

我希望如果一个字段在数组中重新出现20次，那么公共字段应该包含20个对象所包含的所有值。附：价值观可能不同。

下面提到的回答会更清楚。

我的样本json是

[
{
    "_id": "57ed13ada3a7403e1cf73d0f",
    "id": 213,
    "name": "Services",
    "created_at": "2014-10-12 05:30:03.296711",
    "updated_at": "2014-10-12 05:30:03.296711",
    "priority": 0,
    "tags_weight": 2
  },
  {
    "_id": "57ed13ada3a7403e1cf73d0f",
    "id": 213,
    "name": "Services",
    "created_at": "2014-10-12 05:30:03.296711",
    "updated_at": "2014-10-12 05:30:03.296711",
    "priority": 0,
    "tags_weight": 35
  },
  {
    "_id": "57ed13ada3a7403e1cf73fc5",
    "id": 51,
    "name": "Sports",
    "created_at": "2014-10-11 03:22:13.640631",
    "updated_at": "2015-02-16 15:22:19.389636",
    "priority": 20,
    "tags_weight": 2
  },
  {
    "_id": "57ed13ada3a7403e1cf73fc5",
    "id": 51,
    "name": "Sports",
    "created_at": "2014-10-11 03:22:13.640631",
    "updated_at": "2015-02-16 15:22:19.389636",
    "priority": 20,
    "tags_weight": 90
  },
  {
    "_id": "57ed13ada3a7403e1cf73c54",
    "id": 11,
    "name": "Free",
    "created_at": "2014-10-11 03:22:11.783557",
    "updated_at": "2014-10-11 03:22:11.783557",
    "priority": 0,
    "tags_weight": 2
  },
  {
    "_id": "57ed13ada3a7403e1cf73c54",
    "id": 11,
    "name": "Free",
    "created_at": "2014-10-11 03:22:11.783557",
    "updated_at": "2014-10-11 03:22:11.783557",
    "priority": 0,
    "tags_weight": 90
  },
  {
    "_id": "57ed13ada3a7403e1cf73c82",
    "id": 67,
    "name": "Events",
    "created_at": "2014-10-11 03:22:13.817505",
    "updated_at": "2014-10-11 03:22:13.817505",
    "priority": 0,
    "tags_weight": 2
  }
]

我希望我的输出看起来像： -

[
{
    "_id": "57ed13ada3a7403e1cf73d0f",
    "id": 213,
    "name": "Services",
    "created_at": "2014-10-12 05:30:03.296711",
    "updated_at": "2014-10-12 05:30:03.296711",
    "priority": 0,
    "tags_weight": 37
  },
  {
    "_id": "57ed13ada3a7403e1cf73d0f",
    "id": 213,
    "name": "Services",
    "created_at": "2014-10-12 05:30:03.296711",
    "updated_at": "2014-10-12 05:30:03.296711",
    "priority": 0,
    "tags_weight": 92
  },
  {
    "_id": "57ed13ada3a7403e1cf73fc5",
    "id": 51,
    "name": "Free",
    "created_at": "2014-10-11 03:22:13.640631",
    "updated_at": "2015-02-16 15:22:19.389636",
    "priority": 20,
    "tags_weight": 92
  },
  {
    "_id": "57ed13ada3a7403e1cf73fc5",
    "id": 51,
    "name": "Events",
    "created_at": "2014-10-11 03:22:13.640631",
    "updated_at": "2015-02-16 15:22:19.389636",
    "priority": 20,
    "tags_weight": 2
  }
]

可以观察到，在我想要的数组中，我已经使用通用名称合并了字段，并且我已经根据它在数组中的出现添加了每个唯一对象的tags_weight。