如何在 laravel 资源中添加订单字段？

Posted 2023-02-16

【中文标题】如何在 laravel 资源中添加订单字段？

【英文标题】：How in laravel resources to add order field?

【发布时间】：2021-01-30 22:57:31

【问题描述】：

在 laravel 7 应用程序中，我在控制器中使用集合：

return (new TaskCollection($tasks));

和 app/Http/Resources/TaskCollection.php ：

<?php

namespace App\Http\Resources;
use App\Facades\MyFuncsClass;
use App\Task;

use Illuminate\Http\Resources\Json\ResourceCollection;

class TaskCollection extends ResourceCollection

    public static $wrap = 'tasks';
    public function toArray($request)
    
        return $this->collectResource($this->collection)->transform(static function (Task $task)
                return [
                    'id' => $task->id,
                    ....
                    'created_at' => $task->created_at,
                    'updated_at' => $task->updated_at,
                    'deleted_at' => $task->deleted_at,
                ];
            );

    

    public function with($request)
    
        return [
            'meta' => [
               ...
            ]
        ];
    

我需要在下一行添加订单字段（从 0 值）+ 1。我该怎么做？

谢谢！

【参考方案1】：

使用map函数：

public function toArray($request)

    $this->collection = $this->collection->map(function ($item, $key) 
        $item['order'] = $key;
        return $item;
    );

    return $this->collectResource($this->collection)->transform(static function (Task $task)
        return [
            'id' => $task->id,
            'order' => $task->order,
                ....
            'created_at' => $task->created_at,
            'updated_at' => $task->updated_at,
            'deleted_at' => $task->deleted_at,
        ];
   );