如何从 id_item 将元素移动到另一个数组答案

【问题标题】：How to move element to another array based from id_item如何从 id_item 将元素移动到另一个数组
【发布时间】：2020-07-29 19:10:02
【问题描述】：

我有一个数组，但目前，数组还是基于 id_order, ，像这样：

这里是我的控制器

public function detail()
{
      $data = Order::with('detail')->get();
      return $data;
}

结果：

[
   {
     "id": 1, //id_order
     "order_number" : "IT.123.76",
     "status" : "Pending",
     "details" : [
                    { 
                       "id" : 1,
                       "id_order" : 1,
                       "id_item" : 2, //based from this
                       "name" : "Avocado Juice",
                       "qty" : 7
                    },
                    { 
                       "id" : 2,
                       "id_order" : 1,
                       "id_item" : 3, //based from this
                       "name" : "Orange Juice",
                       "qty" : 2
                    },
                    { 
                       "id" : 3,
                       "id_order" : 1,
                       "id_item" : 5, //based from this
                       "name" : "Mango Juice",
                       "qty" : 1
                    }
                ]
     },
     {
     "id": 2, //id_order
     "order_number" : "IT.123.78",
     "status" : "Pending",
     "details" : [
                    { 
                       "id" : 4,
                       "id_order" : 2,
                       "id_item" : 2, //based from this
                       "name" : "Avocado Juice",
                       "qty" : 1
                    },
                    { 
                       "id" : 5,
                       "id_order" : 2,
                       "id_item" : 9, //based from this
                       "name" : "Ice Tea",
                       "qty" : 2
                    }
                ]
         }

    }
]

如何将数组的结构更改为这样（基于 id_item 和名称 item 成为每个元素中的键）以及计算每个项目的数量，例如 = 鳄梨汁有 2 个订单，第一个订单有数量： 7 和二阶 qty: 1 然后将 8 个结果相加？

[
  {
   "qty_total" : 8, // from 7+1 in avocado juice
   "Avocado Juice" : [
                        {
                           "id" : 1, //From id_order
                           "id_item" : 2, //Avocado Juice
                           "order_number" : "IT.123.76",
                           "qty" : 7
                        },
                        {
                           "id" : 2, //From id_order
                           "id_item" : 2, //Avocado Juice
                           "order_number" : "IT.123.78",
                           "qty" : 1
                        }
                ]
   },
   {
    "qty_total" : 2,
    "Orange Juice" : [
                        {
                           "id" : 1, //From id_order
                           "id_item" : 3, //Orange Juice
                           "order_number" : "IT.123.76",
                           "qty" : 2
                        }
                   ]
   },
   {
    "qty_total" : 1,
    "Mango Juice" : [
                        {
                           "id" : 2, //From id_order
                           "id_item" : 5, //Mango Juice
                           "order_number" : "IT.123.76", //order_number Id_order 1
                           "qty" : 1
                        }
                   ]
   },
   {
    "qty_total" : 2,
    "Ice Tea" : [
                        {
                           "id" : 1, //From id_order
                           "id_item" : 9, //Ice Tea
                           "order_number" : "IT.123.78",
                           "qty" : 2
                        }
                   ]
   },
]

感谢提前

【问题讨论】：

标签： php arrays json laravel eloquent

【解决方案1】：

你可以试试这样的。

const orders = [
    {
        "id": 1, //id_order
        "order_number": "IT.123.76",
        "status": "Pending",
        "details": [
            {
                "id": 1,
                "id_order": 1,
                "id_item": 2, //based from this
                "name": "Avocado Juice",
                "qty": 7
            },
            {
                "id": 2,
                "id_order": 1,
                "id_item": 3, //based from this
                "name": "Orange Juice",
                "qty": 2
            },
            {
                "id": 3,
                "id_order": 1,
                "id_item": 5, //based from this
                "name": "Mango Juice",
                "qty": 1
            }
        ]
    }, {
        "id": 2,
        "order_number": "IT.123.78",
        "status": "Pending",
        "details": [
            {
                "id": 4,
                "id_order": 2,
                "id_item": 2, //based from this
                "name": "Avocado Juice",
                "qty": 1
            },
            {
                "id": 5,
                "id_order": 2,
                "id_item": 9, //based from this
                "name": "Ice Tea",
                "qty": 2
            }
        ]
    }
];
var ordersById = {};
orders.forEach((order) => {
  order.details.forEach((detail) => {
      // ToDo: filter out completed/nonpending orders
      let orderGroup;
      
      if (!ordersById[detail.id_item]) {
        orderGroup = {qty_total: detail.qty};
        orderGroup[detail.name] = [{id: detail.id_order, id_item: detail.id_item, order_number: order.order_number, qty: detail.qty}];
        ordersById[detail.id_item] = orderGroup;
      } else {
        orderGroup = ordersById[detail.id_item];
        orderGroup.qty_total += detail.qty;
        orderGroup[detail.name].push([{id: detail.id_order, id_item: detail.id_item, order_number: order.order_number, qty: detail.qty}]);
      }
  });
});

const result = Object.keys(ordersById).map((order_id) => { return ordersById[order_id];});;

console.log(result);

【讨论】：